added support for pic32 (PIC32MX795F512L)
This commit is contained in:
Giovanni `evilaliv3` Pellerano
parent
70e46f3248
commit
f68df3a81c
51
cpu/pic32/Makefile.pic32
Normal file
51
cpu/pic32/Makefile.pic32
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@ -0,0 +1,51 @@
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#
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# Makefile for PIC32MX795F512L
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# @author Giovanni Pellerano <giovanni.pellerano@evilaliv3.org>
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#
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# $Id: Makefile.pic32,v 1.0 2012/12/03 09:00:00 evilaliv3 Exp $
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#
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PIC32_MODEL=32MX795F512L
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CFLAGS += -O1 -fno-strict-aliasing -G7 -Wall -I /opt/microchip/xc32/v1.11/pic32mx/include/ $(CONTIKI_PLAT_DEFS)
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CFLAGS += -ffunction-sections
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### Define the CPU directory
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CONTIKI_CPU=$(CONTIKI)/cpu/pic32
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### Define the cpu dirs and source files
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CONTIKI_CPU_DIRS = . lib
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CPU_LIBS = $(notdir $(wildcard $(CONTIKI_CPU)/lib/*.c))
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CONTIKI_SOURCEFILES += pic32.c clock.c watchdog.c rtimer-arch.c $(CPU_LIBS) debug-uart.c slip-uart.c
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### Compiler definitions
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CC = xc32-gcc
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LD = xc32-gcc
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AS = xc32-as
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AR = xc32-ar
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OBJCOPY = xc32-objcopy
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STRIP = xc32-strip
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ifneq ($(PIC32_MODEL),)
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CFLAGS += -mprocessor=$(PIC32_MODEL)
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LDFLAGS += -mprocessor=$(PIC32_MODEL) -Wl,-Map=contiki-$(TARGET).map -s
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LDFLAGS += -Wl,--defsym,_min_stack_size=4096 -Wl,--gc-sections
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endif
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### Compilation rules
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%.so: $(OBJECTDIR)/%.o
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$(LD) -shared -o $@ $^
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ifdef CORE
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.PHONY: symbols.c symbols.h
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symbols.c symbols.h:
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$(NM) -C $(CORE) | grep -v @ | grep -v dll_crt0 | awk -f $(CONTIKI)/tools/mknmlist > symbols.c
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else
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symbols.c symbols.h:
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cp ${CONTIKI}/tools/empty-symbols.c symbols.c
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cp ${CONTIKI}/tools/empty-symbols.h symbols.h
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endif
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contiki-$(TARGET).a: ${addprefix $(OBJECTDIR)/,symbols.o}
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144
cpu/pic32/clock.c
Normal file
144
cpu/pic32/clock.c
Normal file
@ -0,0 +1,144 @@
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/*
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* Contiki PIC32 Port project
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*
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* Copyright (c) 2012,
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* Scuola Superiore Sant'Anna (http://www.sssup.it) and
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* Consorzio Nazionale Interuniversitario per le Telecomunicazioni
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* (http://www.cnit.it).
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*
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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||||
* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the Institute nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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*/
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/**
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* \addtogroup pic32 PIC32 Contiki Port
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*
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* @{
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*/
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/**
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* \file clock.c
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* \brief Clock routines.
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* \author Giovanni Pellerano <giovanni.pellerano@evilaliv3.org>
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* \author Daniele Alessandrelli <d.alessandrelli@sssup.it>
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* \date 2012-03-21
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*/
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#include <pic32_clock.h>
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#include <pic32_timer.h>
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#include <pic32_irq.h>
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#include <sys/clock.h>
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#include <sys/etimer.h>
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#include "contiki.h"
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static volatile clock_time_t ticks;
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static volatile unsigned long seconds;
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/*---------------------------------------------------------------------------*/
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static inline void
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clock_callback(void)
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{
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++ticks;
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if(etimer_pending()) {
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etimer_request_poll();
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}
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#if (CLOCK_CONF_SECOND & (CLOCK_CONF_SECOND - 1)) != 0
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#error CLOCK_CONF_SECOND must be a power of two (i.e., 1, 2, 4, 8, 16, 32, 64, ...).
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#error Change CLOCK_CONF_SECOND in contiki-conf.h.
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#endif
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if((ticks % CLOCK_SECOND) == 0) {
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++seconds;
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}
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}
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/*---------------------------------------------------------------------------*/
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clock_time_t
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clock_time(void)
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{
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return ticks;
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}
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/*---------------------------------------------------------------------------*/
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unsigned long
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clock_seconds(void)
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{
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return seconds;
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}
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/*---------------------------------------------------------------------------*/
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void
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clock_set_seconds(unsigned long sec)
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{
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seconds = sec;
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}
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/*---------------------------------------------------------------------------*/
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void
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clock_init(void)
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{
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ticks = 0;
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seconds = 0;
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pic32_timer1_init(CLOCK_SECOND);
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pic32_timer1_enable_irq();
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pic32_timer1_start();
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}
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/*---------------------------------------------------------------------------*/
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void
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clock_delay_usec(uint16_t dt)
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{
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uint32_t now;
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uint32_t stop;
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asm volatile("mfc0 %0, $9" : "=r"(now));
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/* The Count register is incremented every two system clock (SYSCLK) cycles. */
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stop = now + dt * ((pic32_clock_get_system_clock() / 1000000) / 2);
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for (;;) {
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asm volatile("mfc0 %0, $9" : "=r"(now));
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if ((int32_t) (now - stop) >= 0) {
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break;
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}
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}
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}
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/*---------------------------------------------------------------------------*/
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/*
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* Deprecated platform-specific routines.
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*
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*/
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inline void
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clock_delay(unsigned int delay)
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{
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clock_delay_usec(delay);
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}
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/*---------------------------------------------------------------------------*/
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TIMER_INTERRUPT(1, clock_callback);
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/** @} */
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100
cpu/pic32/debug-uart.c
Normal file
100
cpu/pic32/debug-uart.c
Normal file
@ -0,0 +1,100 @@
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/*
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* Contiki PIC32 Port project
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*
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* Copyright (c) 2012,
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* Scuola Superiore Sant'Anna (http://www.sssup.it) and
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* Consorzio Nazionale Interuniversitario per le Telecomunicazioni
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* (http://www.cnit.it).
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*
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the Institute nor the names of its contributors
|
||||
* may be used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
|
||||
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
|
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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*/
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/**
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* \addtogroup pic32 PIC32 Contiki Port
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*
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* @{
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*/
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/**
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* \file debug-uart.h
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* \brief Debug output redirection to uart.
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* \author Giovanni Pellerano <giovanni.pellerano@evilaliv3.org>
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* \date 2012-03-21
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*/
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#ifdef __USE_UART__
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#include <debug-uart.h>
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#include <pic32_uart.h>
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#include <dev/serial-line.h>
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#define DEBUG 1
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#if DEBUG
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#include <stdio.h>
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#define PRINTF(...) printf(__VA_ARGS__)
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#else
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#define PRINTF(...)
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#endif
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#define DEBUG_UART(XX) \
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void \
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_mon_putc(char c) \
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{ \
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pic32_uart##XX##_write(c); \
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} \
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\
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void \
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dbg_setup_uart(unsigned long ubr) \
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{ \
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pic32_uart##XX##_init(ubr, 0); \
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\
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PRINTF("Initializing debug uart: %lubps\n", ubr); \
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} \
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\
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UART_INTERRUPT(XX, 2, pic32_uart##XX##_write);
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#ifdef __USE_UART_PORT1A_FOR_DEBUG__
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DEBUG_UART(1A);
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#elif defined __USE_UART_PORT1B_FOR_DEBUG__
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DEBUG_UART(1B);
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#elif defined __USE_UART_PORT2A_FOR_DEBUG__
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DEBUG_UART(2A);
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#elif defined __USE_UART_PORT2B_FOR_DEBUG__
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DEBUG_UART(2B);
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#elif defined __USE_UART_PORT3A_FOR_DEBUG__
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DEBUG_UART(3A);
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#elif defined __USE_UART_PORT3B_FOR_DEBUG__
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DEBUG_UART(3B);
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#else
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DEBUG_UART(1A);
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#endif
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#endif /* __USE_UART__*/
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/** @} */
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63
cpu/pic32/debug-uart.h
Normal file
63
cpu/pic32/debug-uart.h
Normal file
@ -0,0 +1,63 @@
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/*
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* Contiki PIC32 Port project
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*
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* Copyright (c) 2012,
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* Scuola Superiore Sant'Anna (http://www.sssup.it) and
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* Consorzio Nazionale Interuniversitario per le Telecomunicazioni
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* (http://www.cnit.it).
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*
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* All rights reserved.
|
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*
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* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. Neither the name of the Institute nor the names of its contributors
|
||||
* may be used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
|
||||
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
|
||||
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||||
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*
|
||||
*/
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/**
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* \addtogroup pic32 PIC32 Contiki Port
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*
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* @{
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*/
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/**
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* \file debug-uart.h
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* \brief Debug output redirection to uart.
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* \author Giovanni Pellerano <giovanni.pellerano@evilaliv3.org>
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* \date 2012-03-21
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*/
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#ifndef __DEBUG_UART_H__
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#define __DEBUG_UART_H__
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#include <pic32_uart.h>
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#ifdef __USE_UART__
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void dbg_setup_uart(unsigned long ubr);
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#endif /* __USE_UART__ */
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#endif
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/** @} */
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50
cpu/pic32/dev/uart1.h
Normal file
50
cpu/pic32/dev/uart1.h
Normal file
@ -0,0 +1,50 @@
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/*
|
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* Contiki PIC32 Port project
|
||||
*
|
||||
* Copyright (c) 2012,
|
||||
* Scuola Superiore Sant'Anna (http://www.sssup.it) and
|
||||
* Consorzio Nazionale Interuniversitario per le Telecomunicazioni
|
||||
* (http://www.cnit.it).
|
||||
*
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. Neither the name of the Institute nor the names of its contributors
|
||||
* may be used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
|
||||
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
|
||||
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||||
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*
|
||||
*/
|
||||
|
||||
/**
|
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* @file uart1.h
|
||||
* @brief UART1 routines
|
||||
* @author Giovanni Pellerano <giovanni.pellerano@evilaliv3.org>
|
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*
|
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* @date 2012-03-23
|
||||
*/
|
||||
|
||||
#ifndef DEV_UART1_H
|
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#define DEV_UART1_H
|
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|
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#define BAUD2UBR(x) x
|
||||
|
||||
#endif
|
||||
134
cpu/pic32/lib/pic32_clock.c
Normal file
134
cpu/pic32/lib/pic32_clock.c
Normal file
@ -0,0 +1,134 @@
|
||||
/*
|
||||
* Contiki PIC32 Port project
|
||||
*
|
||||
* Copyright (c) 2012,
|
||||
* Scuola Superiore Sant'Anna (http://www.sssup.it) and
|
||||
* Consorzio Nazionale Interuniversitario per le Telecomunicazioni
|
||||
* (http://www.cnit.it).
|
||||
*
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. Neither the name of the Institute nor the names of its contributors
|
||||
* may be used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
|
||||
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
|
||||
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||||
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*
|
||||
*/
|
||||
|
||||
/**
|
||||
* \addtogroup pic32 PIC32 Contiki Port
|
||||
*
|
||||
* @{
|
||||
*/
|
||||
|
||||
/**
|
||||
* \file pic32_clock.c
|
||||
* \brief CLOCK interface for PIC32MX (pic32mx795f512l)
|
||||
* \author Giovanni Pellerano <giovanni.pellerano@evilaliv3.org>
|
||||
* \date 2012-04-11
|
||||
*/
|
||||
|
||||
/*
|
||||
* PIC32MX795F512L - Specific Functions
|
||||
*
|
||||
* All the functions in this part of the file are specific for the
|
||||
* pic32mx795f512l that is characterized by registers' name that differ from
|
||||
* the 3xx and 4xx families of the pic32mx.
|
||||
*/
|
||||
|
||||
#include <pic32_clock.h>
|
||||
|
||||
#include <p32xxxx.h>
|
||||
|
||||
#include <stdint.h>
|
||||
|
||||
#define CLOCK_SOURCE 8000000ul
|
||||
|
||||
#define DEVCFG2 0xBFC02FF4 /* virtual address of the register */
|
||||
|
||||
#define PLLIDIV_MASK 0x7
|
||||
|
||||
static const uint16_t FPPLIDIV[8] = { 1, 2, 3, 4, 5, 6, 10, 12 };
|
||||
static const uint16_t PLLODIV[8] = { 1, 2, 4, 8, 16, 32, 64, 256 };
|
||||
static const uint16_t PLLMULT[8] = { 15, 16, 17, 18, 19, 20, 21, 24 };
|
||||
static const uint16_t PBDIV[4] = { 1, 2, 4, 8 };
|
||||
|
||||
/*---------------------------------------------------------------------------*/
|
||||
/**
|
||||
* \brief Calculate the system clock.
|
||||
*
|
||||
* \return the system clock value.
|
||||
*/
|
||||
uint32_t
|
||||
pic32_clock_get_system_clock(void)
|
||||
{
|
||||
return CLOCK_SOURCE *
|
||||
PLLMULT[(uint32_t) OSCCONbits.PLLMULT] /
|
||||
(FPPLIDIV[(*((uint32_t *) DEVCFG2)) & PLLIDIV_MASK] *
|
||||
PLLODIV[(uint32_t) OSCCONbits.PLLODIV]);
|
||||
}
|
||||
/*---------------------------------------------------------------------------*/
|
||||
/**
|
||||
* \brief Calculate the peripheral clock.
|
||||
*
|
||||
* \return the peripheral clock value.
|
||||
*/
|
||||
uint32_t
|
||||
pic32_clock_get_peripheral_clock(void)
|
||||
{
|
||||
return pic32_clock_get_system_clock() / PBDIV[OSCCONbits.PBDIV];
|
||||
}
|
||||
/*---------------------------------------------------------------------------*/
|
||||
uint32_t
|
||||
pic32_clock_calculate_brg(uint32_t mul, uint32_t desired)
|
||||
{
|
||||
uint32_t fp = pic32_clock_get_peripheral_clock();
|
||||
|
||||
uint32_t brg[3];
|
||||
uint32_t obtained[3];
|
||||
int32_t err[3];
|
||||
|
||||
uint32_t min;
|
||||
|
||||
brg[0] = fp / (mul * desired); // +1
|
||||
brg[1] = fp / (mul * desired) - 1; // 0
|
||||
brg[2] = fp / (mul * desired) - 2; // -1
|
||||
|
||||
obtained[0] = fp / (mul * (brg[0] + 1));
|
||||
obtained[1] = fp / (mul * (brg[1] + 1));
|
||||
obtained[2] = fp / (mul * (brg[2] + 1));
|
||||
|
||||
err[0] = obtained[0] - desired;
|
||||
err[1] = obtained[1] - desired;
|
||||
err[2] = obtained[2] - desired;
|
||||
|
||||
err[0] = err[0] < 0 ? -err[0] : err[0];
|
||||
err[1] = err[1] < 0 ? -err[1] : err[1];
|
||||
err[2] = err[2] < 0 ? -err[2] : err[2];
|
||||
|
||||
min = 0;
|
||||
min = err[1] < err[min] ? 1 : min;
|
||||
min = err[2] < err[min] ? 2 : min;
|
||||
|
||||
return brg[min];
|
||||
}
|
||||
/** @} */
|
||||
74
cpu/pic32/lib/pic32_clock.h
Normal file
74
cpu/pic32/lib/pic32_clock.h
Normal file
@ -0,0 +1,74 @@
|
||||
/*
|
||||
* Contiki PIC32 Port project
|
||||
*
|
||||
* Copyright (c) 2012,
|
||||
* Scuola Superiore Sant'Anna (http://www.sssup.it) and
|
||||
* Consorzio Nazionale Interuniversitario per le Telecomunicazioni
|
||||
* (http://www.cnit.it).
|
||||
*
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. Neither the name of the Institute nor the names of its contributors
|
||||
* may be used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
|
||||
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
|
||||
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||||
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*
|
||||
*/
|
||||
|
||||
/**
|
||||
* \addtogroup pic32 PIC32 Contiki Port
|
||||
*
|
||||
* @{
|
||||
*/
|
||||
|
||||
/**
|
||||
* \file pic32_clock.h
|
||||
* \brief CLOCK interface for PIC32MX (pic32mx795f512l)
|
||||
* \author Giovanni Pellerano <giovanni.pellerano@evilaliv3.org>
|
||||
* \date 2012-04-11
|
||||
*/
|
||||
|
||||
#ifndef __INCLUDE_PIC32_CLOCK_H__
|
||||
#define __INCLUDE_PIC32_CLOCK_H__
|
||||
|
||||
#include <stdint.h>
|
||||
|
||||
/*
|
||||
* PIC32MX795F512L - Specific Functions
|
||||
*
|
||||
* All the functions in this part of the file are specific for the
|
||||
* pic32mx795f512l that is characterized by registers' name that differ from
|
||||
* the 3xx and 4xx families of the pic32mx.
|
||||
*/
|
||||
|
||||
/* Function used to calculate the system clock */
|
||||
uint32_t pic32_clock_get_system_clock(void);
|
||||
|
||||
/* Function used to calculate the peripherals clock */
|
||||
uint32_t pic32_clock_get_peripheral_clock(void);
|
||||
|
||||
/* Function used to calculate the appropriate brg param to approximate desidered frequency */
|
||||
uint32_t pic32_clock_calculate_brg(uint32_t mul, uint32_t desired);
|
||||
|
||||
#endif /* __INCLUDE_PIC32_CLOCK_H__ */
|
||||
|
||||
/** @} */
|
||||
79
cpu/pic32/lib/pic32_irq.h
Normal file
79
cpu/pic32/lib/pic32_irq.h
Normal file
@ -0,0 +1,79 @@
|
||||
/*
|
||||
* Contiki PIC32 Port project
|
||||
*
|
||||
* Copyright (c) 2012,
|
||||
* Scuola Superiore Sant'Anna (http://www.sssup.it) and
|
||||
* Consorzio Nazionale Interuniversitario per le Telecomunicazioni
|
||||
* (http://www.cnit.it).
|
||||
*
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. Neither the name of the Institute nor the names of its contributors
|
||||
* may be used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
|
||||
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
|
||||
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||||
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*
|
||||
*/
|
||||
|
||||
/**
|
||||
* \addtogroup pic32 PIC32 Contiki Port
|
||||
*
|
||||
* @{
|
||||
*/
|
||||
|
||||
/**
|
||||
* \file pic32_irq.h
|
||||
* \brief INTERRUPT interface for PIC32MX (pic32mx795f512l)
|
||||
* \author Giovanni Pellerano <giovanni.pellerano@evilaliv3.org>
|
||||
* \date 2012-03-23
|
||||
*/
|
||||
|
||||
/*
|
||||
* PIC32MX795F512L - Specific Functions
|
||||
*
|
||||
* All the functions in this part of the file are specific for the
|
||||
* pic32mx795f512l that is characterized by registers' name that differ from
|
||||
* the 3xx and 4xx families of the pic32mx.
|
||||
*/
|
||||
|
||||
#ifndef __INCLUDE_PIC32_IRQ_H__
|
||||
#define __INCLUDE_PIC32_IRQ_H__
|
||||
|
||||
#define ASM_DIS_INT \
|
||||
do { \
|
||||
asm volatile("di"); \
|
||||
} while(0)
|
||||
|
||||
#define ASM_EN_INT \
|
||||
do { \
|
||||
asm volatile("ei"); \
|
||||
} while(0)
|
||||
|
||||
#define TIMER_ISR(v) \
|
||||
void __attribute__((vector(v), interrupt(ipl7))) isr_##v(void)
|
||||
|
||||
#define ISR(v) \
|
||||
void __attribute__((vector(v), interrupt(ipl6))) isr_##v(void)
|
||||
|
||||
#endif /* __INCLUDE_PIC32_IRQ_H__ */
|
||||
|
||||
/** @} */
|
||||
186
cpu/pic32/lib/pic32_spi.c
Normal file
186
cpu/pic32/lib/pic32_spi.c
Normal file
@ -0,0 +1,186 @@
|
||||
/*
|
||||
* Contiki PIC32 Port project
|
||||
*
|
||||
* Copyright (c) 2012,
|
||||
* Scuola Superiore Sant'Anna (http://www.sssup.it) and
|
||||
* Consorzio Nazionale Interuniversitario per le Telecomunicazioni
|
||||
* (http://www.cnit.it).
|
||||
*
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. Neither the name of the Institute nor the names of its contributors
|
||||
* may be used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
|
||||
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
|
||||
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||||
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*
|
||||
*/
|
||||
|
||||
/**
|
||||
* \addtogroup pic32 PIC32 Contiki Port
|
||||
*
|
||||
* @{
|
||||
*/
|
||||
|
||||
/**
|
||||
* \file pic32_spi.c
|
||||
* \brief SPI interface for PIC32MX (pic32mx795f512l)
|
||||
* \author Giovanni Pellerano <giovanni.pellerano@evilaliv3.org>
|
||||
* \date 2012-03-21
|
||||
*/
|
||||
|
||||
/*
|
||||
* PIC32MX795F512L - Specific Functions
|
||||
*
|
||||
* All the functions in this part of the file are specific for the
|
||||
* pic32mx795f512l that is characterized by registers' name that differ from
|
||||
* the 3xx and 4xx families of the pic32mx.
|
||||
*/
|
||||
|
||||
#define __SPI_CODE_TEST__ 0
|
||||
|
||||
#if __SPI_CODE_TEST__
|
||||
#define __USE_SPI__ 1
|
||||
#define __USE_SPI_PORT1__ 1
|
||||
#define __USE_SPI_PORT1A__ 1
|
||||
#define __USE_SPI_PORT2A__ 1
|
||||
#define __USE_SPI_PORT3A__ 1
|
||||
#endif /* __SPI_CODE_TEST__ */
|
||||
|
||||
#ifdef __USE_SPI__
|
||||
|
||||
#include <pic32_spi.h>
|
||||
#include <pic32_clock.h>
|
||||
#include <pic32_irq.h>
|
||||
|
||||
#include <p32xxxx.h>
|
||||
|
||||
/*
|
||||
* PIC32MX795F512L - Specific Functions
|
||||
*
|
||||
* All the functions in this part of the file are specific for the
|
||||
* pic32mx795f512l that is characterized by registers' name that differ from
|
||||
* the 3xx and 4xx families of the pic32mx.
|
||||
*/
|
||||
|
||||
#define IS_MASTER(flags) ((flags) & SPI_MASTER)
|
||||
|
||||
/*---------------------------------------------------------------------------*/
|
||||
#define SPI_PORT(XX, YY) \
|
||||
int8_t \
|
||||
pic32_spi##XX##_init(uint32_t baudrate, uint32_t flags) \
|
||||
{ \
|
||||
\
|
||||
IEC##YY##CLR = _IEC##YY##_SPI##XX##EIE_MASK | \
|
||||
_IEC##YY##_SPI##XX##TXIE_MASK | \
|
||||
_IEC##YY##_SPI##XX##RXIE_MASK; \
|
||||
\
|
||||
IFS##YY##CLR = _IFS##YY##_SPI##XX##EIF_MASK | \
|
||||
_IFS##YY##_SPI##XX##TXIF_MASK | \
|
||||
_IFS##YY##_SPI##XX##RXIF_MASK; \
|
||||
\
|
||||
SPI##XX##BRG = pic32_clock_calculate_brg(2, baudrate); \
|
||||
\
|
||||
SPI##XX##CON = 0; \
|
||||
\
|
||||
/* Flag parsing */ \
|
||||
\
|
||||
if(!IS_MASTER(flags)) { \
|
||||
return -SPI_ERR_UNIMPLEMENTED; \
|
||||
} \
|
||||
\
|
||||
SPI##XX##CON = flags | _SPI##XX##CON_ON_MASK; \
|
||||
\
|
||||
return SPI_NO_ERRORS; \
|
||||
} \
|
||||
\
|
||||
int8_t \
|
||||
pic32_spi##XX##_close() \
|
||||
{ \
|
||||
SPI##XX##CONCLR = _SPI##XX##CON_ON_MASK; \
|
||||
return SPI_NO_ERRORS; \
|
||||
} \
|
||||
\
|
||||
int8_t \
|
||||
pic32_spi##XX##_write(const uint8_t *data, uint32_t len) \
|
||||
{ \
|
||||
uint32_t i; \
|
||||
uint32_t dummy; \
|
||||
\
|
||||
for(i = 0; i < len; ++i) { \
|
||||
SPI##XX##STATCLR = _SPI##XX##STAT_SPIROV_MASK; \
|
||||
while(!SPI##XX##STATbits.SPITBE) { \
|
||||
; \
|
||||
} \
|
||||
ASM_DIS_INT; /* fix errata 44 */ \
|
||||
SPI##XX##BUF = data[i]; \
|
||||
ASM_EN_INT; /* fix errata 44 */ \
|
||||
while(!SPI##XX##STATbits.SPIRBF) { \
|
||||
; \
|
||||
} \
|
||||
SPI##XX##STATCLR = _SPI##XX##STAT_SPIROV_MASK; \
|
||||
dummy = SPI##XX##BUF; \
|
||||
} \
|
||||
\
|
||||
return SPI_NO_ERRORS; \
|
||||
} \
|
||||
\
|
||||
int8_t \
|
||||
pic32_spi##XX##_read(uint8_t *data, uint32_t len) \
|
||||
{ \
|
||||
uint32_t i; \
|
||||
\
|
||||
for(i = 0; i < len; ++i) { \
|
||||
SPI##XX##STATCLR = _SPI##XX##STAT_SPIROV_MASK; \
|
||||
while(!SPI##XX##STATbits.SPITBE) { \
|
||||
; \
|
||||
} \
|
||||
SPI##XX##BUF = 0; \
|
||||
while(!SPI##XX##STATbits.SPIRBF) { \
|
||||
; \
|
||||
} \
|
||||
SPI##XX##STATCLR = _SPI##XX##STAT_SPIROV_MASK; \
|
||||
data[i] = SPI##XX##BUF & 0x00FF; \
|
||||
} \
|
||||
\
|
||||
return SPI_NO_ERRORS; \
|
||||
}
|
||||
/*---------------------------------------------------------------------------*/
|
||||
|
||||
#ifdef __USE_SPI_PORT1__
|
||||
SPI_PORT(1, 0)
|
||||
#endif /* __USE_SPI_PORT1__ */
|
||||
|
||||
#ifdef __USE_SPI_PORT1A__
|
||||
SPI_PORT(1A, 0)
|
||||
#endif /* __USE_SPI_PORT1A__ */
|
||||
|
||||
#ifdef __USE_SPI_PORT2A__
|
||||
SPI_PORT(2A, 1)
|
||||
#endif /* __USE_SPI_PORT2A__ */
|
||||
|
||||
#ifdef __USE_SPI_PORT3A__
|
||||
SPI_PORT(3A, 1)
|
||||
#endif /* __USE_SPI_PORT3A__ */
|
||||
|
||||
#endif /* __USE_SPI__ */
|
||||
|
||||
/** @} */
|
||||
114
cpu/pic32/lib/pic32_spi.h
Normal file
114
cpu/pic32/lib/pic32_spi.h
Normal file
@ -0,0 +1,114 @@
|
||||
/*
|
||||
* Contiki PIC32 Port project
|
||||
*
|
||||
* Copyright (c) 2012,
|
||||
* Scuola Superiore Sant'Anna (http://www.sssup.it) and
|
||||
* Consorzio Nazionale Interuniversitario per le Telecomunicazioni
|
||||
* (http://www.cnit.it).
|
||||
*
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. Neither the name of the Institute nor the names of its contributors
|
||||
* may be used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
|
||||
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
|
||||
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||||
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*
|
||||
*/
|
||||
|
||||
/**
|
||||
* \addtogroup pic32 PIC32 Contiki Port
|
||||
*
|
||||
* @{
|
||||
*/
|
||||
|
||||
/**
|
||||
* \file pic32_spi.h
|
||||
* \brief SPI interface for PIC32MX (pic32mx795f512l)
|
||||
* \author Giovanni Pellerano <giovanni.pellerano@evilaliv3.org>
|
||||
* \date 2012-03-21
|
||||
*/
|
||||
|
||||
/*
|
||||
* PIC32MX795F512L - Specific Functions
|
||||
*
|
||||
* All the functions in this part of the file are specific for the
|
||||
* pic32mx795f512l that is characterized by registers' name that differ from
|
||||
* the 3xx and 4xx families of the pic32mx.
|
||||
*/
|
||||
|
||||
#ifndef __INCLUDE_PIC32_SPI_H__
|
||||
#define __INCLUDE_PIC32_SPI_H__
|
||||
|
||||
#ifdef __USE_SPI__
|
||||
|
||||
#include <p32xxxx.h>
|
||||
|
||||
#include <stdint.h>
|
||||
|
||||
/* Returned Messages */
|
||||
#define SPI_NO_ERRORS 0
|
||||
#define SPI_ERR_BAD_PORT 1
|
||||
#define SPI_ERR_BAD_ARGS 2
|
||||
#define SPI_ERR_BUSY 3
|
||||
#define SPI_ERR_UNIMPLEMENTED 10
|
||||
|
||||
/*
|
||||
* Configuration Flags
|
||||
* NOTE: this work under the assumption that all the SPI ports have the same
|
||||
* control register specification. See pic32mx family reference manual.
|
||||
*/
|
||||
|
||||
#define SPI_MASTER 0b00000000000000000000000000100000
|
||||
#define SPI_CLOCK_IDLE_HIGH 0b00000000000000000000000001000000
|
||||
#define SPI_SDO_ON_CLOCK_TO_IDLE 0b00000000000000000000000100000000
|
||||
#define SPI_SDI_ON_CLOCK_END 0b00000000000000000000001000000000
|
||||
|
||||
/* Other Flags */
|
||||
#define SPI_DEFAULT (SPI_MASTER | SPI_SDO_ON_CLOCK_TO_IDLE)
|
||||
|
||||
#define SPI_DEF(XX) \
|
||||
int8_t pic32_spi##XX##_init(uint32_t baudrate, uint32_t flags); \
|
||||
int8_t pic32_spi##XX##_close(); \
|
||||
int8_t pic32_spi##XX##_write(const uint8_t *data, uint32_t len);\
|
||||
int8_t pic32_spi##XX##_read(uint8_t *data, uint32_t len);
|
||||
|
||||
#ifdef __USE_SPI_PORT1__
|
||||
SPI_DEF(1)
|
||||
#endif /* __USE_SPI_PORT1__ */
|
||||
|
||||
#ifdef __USE_SPI_PORT1A__
|
||||
SPI_DEF(1A)
|
||||
#endif /* __USE_SPI_PORT1A__ */
|
||||
|
||||
#ifdef __USE_SPI_PORT2A__
|
||||
SPI_DEF(2A)
|
||||
#endif /* __USE_SPI_PORT2A__ */
|
||||
|
||||
#ifdef __USE_SPI_PORT3A__
|
||||
SPI_DEF(3A)
|
||||
#endif /* __USE_SPI_PORT3A__ */
|
||||
|
||||
#endif /* __USE_SPI__ */
|
||||
|
||||
#endif /* __INCLUDE_PIC32_SPI_H__ */
|
||||
|
||||
/** @} */
|
||||
283
cpu/pic32/lib/pic32_timer.c
Normal file
283
cpu/pic32/lib/pic32_timer.c
Normal file
@ -0,0 +1,283 @@
|
||||
/*
|
||||
* Contiki PIC32 Port project
|
||||
*
|
||||
* Copyright (c) 2012,
|
||||
* Scuola Superiore Sant'Anna (http://www.sssup.it) and
|
||||
* Consorzio Nazionale Interuniversitario per le Telecomunicazioni
|
||||
* (http://www.cnit.it).
|
||||
*
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. Neither the name of the Institute nor the names of its contributors
|
||||
* may be used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
|
||||
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
|
||||
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||||
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*
|
||||
*/
|
||||
|
||||
/**
|
||||
* \addtogroup pic32 PIC32 Contiki Port
|
||||
*
|
||||
* @{
|
||||
*/
|
||||
|
||||
/**
|
||||
* \file pic32_timer.c
|
||||
* \brief TIMER interface for PIC32MX (pic32mx795f512l)
|
||||
* \author Giovanni Pellerano <giovanni.pellerano@evilaliv3.org>
|
||||
* \date 2012-03-26
|
||||
*/
|
||||
|
||||
/*
|
||||
* PIC32MX795F512L - Specific Functions
|
||||
*
|
||||
* All the functions in this part of the file are specific for the
|
||||
* pic32mx795f512l that is characterized by registers' name that differ from
|
||||
* the 3xx and 4xx families of the pic32mx.
|
||||
*/
|
||||
|
||||
#define __TIMER_CODE_TEST__ 0
|
||||
|
||||
#if __TIMER_CODE_TEST__
|
||||
#define __USE_TIMER__ 1
|
||||
#define __USE_TIMER_1__ 1
|
||||
#define __USE_TIMER_2__ 1
|
||||
#define __USE_TIMER_3__ 1
|
||||
#define __USE_TIMER_4__ 1
|
||||
#define __USE_TIMER_5__ 1
|
||||
#define __USE_TIMER_23__ 1
|
||||
#define __USE_TIMER_45__ 1
|
||||
#endif /* __TIMER_CODE_TEST__ */
|
||||
|
||||
#ifdef __USE_TIMER__
|
||||
|
||||
#include <pic32_timer.h>
|
||||
#include <pic32_clock.h>
|
||||
#include <pic32_irq.h>
|
||||
|
||||
#include <p32xxxx.h>
|
||||
|
||||
#include <stdint.h>
|
||||
#include <stddef.h>
|
||||
|
||||
/*---------------------------------------------------------------------------*/
|
||||
#define TIMERN_16(XX, TT, PP) \
|
||||
void \
|
||||
pic32_timer##XX##_enable_irq(void) \
|
||||
{ \
|
||||
IFS0CLR = _IFS0_T##XX##IF_MASK; /* Clean Timer IRQ Flag */ \
|
||||
IEC0SET = _IEC0_T##XX##IE_MASK; /* Enable Timer IRQ */ \
|
||||
} \
|
||||
\
|
||||
void \
|
||||
pic32_timer##XX##_disable_irq(void) \
|
||||
{ \
|
||||
IEC0CLR = _IEC0_T##XX##IE_MASK; /* Disable Timer IRQ */ \
|
||||
IFS0CLR = _IFS0_T##XX##IF_MASK; /* Clean Timer IRQ Flag */ \
|
||||
} \
|
||||
\
|
||||
uint8_t \
|
||||
pic32_timer##XX##_init(uint32_t frequency) \
|
||||
{ \
|
||||
uint32_t prd = pic32_clock_get_peripheral_clock() / frequency; \
|
||||
uint8_t tckps; /* Prescale */ \
|
||||
uint8_t ok = 0; \
|
||||
\
|
||||
if(prd <= UINT16_MAX) { \
|
||||
tckps = TIMER_##TT##_PRESCALE_1; \
|
||||
ok = 1; \
|
||||
} else { \
|
||||
prd = prd / 8; \
|
||||
} \
|
||||
\
|
||||
if(ok == 0) { \
|
||||
if(prd <= UINT16_MAX) { \
|
||||
tckps = TIMER_##TT##_PRESCALE_8; \
|
||||
ok = 1; \
|
||||
} else { \
|
||||
prd = prd / 8; \
|
||||
} \
|
||||
} \
|
||||
\
|
||||
if(ok == 0) { \
|
||||
if(prd <= UINT16_MAX) { \
|
||||
tckps = TIMER_##TT##_PRESCALE_64; \
|
||||
ok = 1; \
|
||||
} else { \
|
||||
prd = prd / 4; \
|
||||
} \
|
||||
} \
|
||||
\
|
||||
if(ok == 0) { \
|
||||
if(prd <= UINT16_MAX) { \
|
||||
tckps = TIMER_##TT##_PRESCALE_256; \
|
||||
} else { \
|
||||
return -TIMER_ERR_BAD_ARGS; \
|
||||
} \
|
||||
} \
|
||||
\
|
||||
pic32_timer##XX##_disable_irq(); \
|
||||
\
|
||||
IPC##XX##CLR = _IPC##XX##_T##XX##IP_MASK | _IPC##XX##_T##XX##IS_MASK; \
|
||||
IPC##XX##SET = (7 << _IPC##XX##_T##XX##IP_POSITION) | (PP << _IPC##XX##_T##XX##IS_POSITION); \
|
||||
T##XX##CON = 0; \
|
||||
T##XX##CONSET = tckps << _T##XX##CON_TCKPS_POSITION; \
|
||||
PR##XX = prd; \
|
||||
TMR##XX = 0; \
|
||||
\
|
||||
return TIMER_NO_ERRORS; \
|
||||
} \
|
||||
\
|
||||
void \
|
||||
pic32_timer##XX##_start(void) \
|
||||
{ \
|
||||
T##XX##CONSET = _T##XX##CON_ON_MASK; /* Start Timer */ \
|
||||
} \
|
||||
\
|
||||
void \
|
||||
pic32_timer##XX##_stop(void) \
|
||||
{ \
|
||||
T##XX##CONCLR = _T##XX##CON_ON_MASK; /* Stop Timer */ \
|
||||
} \
|
||||
\
|
||||
uint16_t \
|
||||
pic32_timer##XX##_get_val(void) \
|
||||
{ \
|
||||
return TMR##XX; \
|
||||
}
|
||||
/*---------------------------------------------------------------------------*/
|
||||
#define TIMERN_32(XX, YY, PP) \
|
||||
\
|
||||
void \
|
||||
pic32_timer##XX##YY##_enable_irq(void) \
|
||||
{ \
|
||||
pic32_timer##YY##_enable_irq(); \
|
||||
} \
|
||||
\
|
||||
void \
|
||||
pic32_timer##XX##YY##_disable_irq(void) \
|
||||
{ \
|
||||
pic32_timer##YY##_disable_irq(); \
|
||||
} \
|
||||
\
|
||||
uint8_t \
|
||||
pic32_timer##XX##YY##_init(uint32_t frequency) \
|
||||
{ \
|
||||
uint32_t prd = pic32_clock_get_peripheral_clock() / frequency; \
|
||||
uint8_t tckps; /* Prescale */ \
|
||||
uint8_t ok = 0; \
|
||||
\
|
||||
if(prd <= UINT16_MAX) { \
|
||||
tckps = TIMER_B_PRESCALE_1; \
|
||||
ok = 1; \
|
||||
} else { \
|
||||
prd = prd / 8; \
|
||||
} \
|
||||
\
|
||||
if(ok == 0) { \
|
||||
if(prd <= UINT16_MAX) { \
|
||||
tckps = TIMER_B_PRESCALE_8; \
|
||||
ok = 1; \
|
||||
} else { \
|
||||
prd = prd / 8; \
|
||||
} \
|
||||
} \
|
||||
\
|
||||
if(ok == 0) { \
|
||||
if(prd <= UINT16_MAX) { \
|
||||
tckps = TIMER_B_PRESCALE_64; \
|
||||
ok = 1; \
|
||||
} else { \
|
||||
prd = prd / 4; \
|
||||
} \
|
||||
} \
|
||||
\
|
||||
if(ok == 0) { \
|
||||
if(prd <= UINT16_MAX) { \
|
||||
tckps = TIMER_B_PRESCALE_256; \
|
||||
} else { \
|
||||
return -TIMER_ERR_BAD_ARGS; \
|
||||
} \
|
||||
} \
|
||||
\
|
||||
pic32_timer##XX##_disable_irq(); \
|
||||
\
|
||||
IPC##YY##CLR = _IPC##YY##_T##YY##IP_MASK | _IPC##YY##_T##YY##IS_MASK; \
|
||||
IPC##YY##SET = (7 << _IPC##YY##_T##YY##IP_POSITION) | (PP << _IPC##YY##_T##YY##IS_POSITION); \
|
||||
T##XX##CON = 0; \
|
||||
T##XX##CONSET = _T##XX##CON_T32_MASK | (tckps << _T##XX##CON_TCKPS_POSITION); \
|
||||
PR##XX = prd; \
|
||||
TMR##XX = 0; \
|
||||
\
|
||||
return TIMER_NO_ERRORS; \
|
||||
} \
|
||||
\
|
||||
void \
|
||||
pic32_timer##XX##YY##_start(void) \
|
||||
{ \
|
||||
T##XX##CONSET = _T##XX##CON_ON_MASK; /* Start Timer */ \
|
||||
} \
|
||||
\
|
||||
void \
|
||||
pic32_timer##XX##YY##_stop(void) \
|
||||
{ \
|
||||
T##XX##CONCLR = _T##XX##CON_ON_MASK; /* Stop Timer */ \
|
||||
} \
|
||||
\
|
||||
uint32_t \
|
||||
pic32_timer##XX##YY##_get_val(void) \
|
||||
{ \
|
||||
return TMR##XX; \
|
||||
}
|
||||
/*---------------------------------------------------------------------------*/
|
||||
|
||||
#ifdef __USE_TIMER_1__
|
||||
TIMERN_16(1, A, 3)
|
||||
#endif /* __USE_TIMER_1__ */
|
||||
|
||||
#if defined(__USE_TIMER_2__) || defined(__USE_TIMER_23__)
|
||||
TIMERN_16(2, B, 2)
|
||||
#endif /* __USE_TIMER_2__ */
|
||||
|
||||
#if defined(__USE_TIMER_3__) || defined(__USE_TIMER_23__)
|
||||
TIMERN_16(3, B, 1)
|
||||
#endif /* __USE_TIMER_3__ */
|
||||
|
||||
#if defined(__USE_TIMER_4__) || defined(__USE_TIMER_45__)
|
||||
TIMERN_16(4, B, 1)
|
||||
#endif /* __USE_TIMER_4__ */
|
||||
|
||||
#if defined(__USE_TIMER_5__) || defined(__USE_TIMER_45__)
|
||||
TIMERN_16(5, B, 1)
|
||||
#endif /* __USE_TIMER_5__ */
|
||||
|
||||
#ifdef __USE_TIMER_23__
|
||||
TIMERN_32(2, 3, 3)
|
||||
#endif /* __USE_TIMER_23__ */
|
||||
|
||||
#ifdef __USE_TIMER_45__
|
||||
TIMERN_32(4, 5, 2)
|
||||
#endif /* __USE_TIMER_45__ */
|
||||
|
||||
#endif /* __USE_TIMER__ */
|
||||
|
||||
/** @} */
|
||||
143
cpu/pic32/lib/pic32_timer.h
Normal file
143
cpu/pic32/lib/pic32_timer.h
Normal file
@ -0,0 +1,143 @@
|
||||
/*
|
||||
* Contiki PIC32 Port project
|
||||
*
|
||||
* Copyright (c) 2012,
|
||||
* Scuola Superiore Sant'Anna (http://www.sssup.it) and
|
||||
* Consorzio Nazionale Interuniversitario per le Telecomunicazioni
|
||||
* (http://www.cnit.it).
|
||||
*
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. Neither the name of the Institute nor the names of its contributors
|
||||
* may be used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
|
||||
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
|
||||
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||||
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*
|
||||
*/
|
||||
|
||||
/**
|
||||
* \addtogroup pic32 PIC32 Contiki Port
|
||||
*
|
||||
* @{
|
||||
*/
|
||||
|
||||
/**
|
||||
* \file pic32_timer.h
|
||||
* \brief TIMER interface for PIC32MX (pic32mx795f512l)
|
||||
* \author Giovanni Pellerano <giovanni.pellerano@evilaliv3.org>
|
||||
* \date 2012-03-26
|
||||
*/
|
||||
|
||||
/*
|
||||
* PIC32MX795F512L - Specific Functions
|
||||
*
|
||||
* All the functions in this part of the file are specific for the
|
||||
* pic32mx795f512l that is characterized by registers' name that differ from
|
||||
* the 3xx and 4xx families of the pic32mx.
|
||||
*/
|
||||
|
||||
#ifndef __INCLUDE_PIC32_TIMER_H__
|
||||
#define __INCLUDE_PIC32_TIMER_H__
|
||||
|
||||
#ifdef __USE_TIMER__
|
||||
|
||||
#include <pic32_irq.h>
|
||||
|
||||
#include <p32xxxx.h>
|
||||
|
||||
#include <stdint.h>
|
||||
|
||||
#define TIMER_NO_ERRORS 0
|
||||
#define TIMER_ERR_BAD_ARGS 1
|
||||
|
||||
#define TIMER_A_PRESCALE_1 0b00
|
||||
#define TIMER_A_PRESCALE_8 0b01
|
||||
#define TIMER_A_PRESCALE_64 0b10
|
||||
#define TIMER_A_PRESCALE_256 0b11
|
||||
|
||||
#define TIMER_B_PRESCALE_1 0b000
|
||||
#define TIMER_B_PRESCALE_2 0b001
|
||||
#define TIMER_B_PRESCALE_4 0b010
|
||||
#define TIMER_B_PRESCALE_8 0b011
|
||||
#define TIMER_B_PRESCALE_16 0b100
|
||||
#define TIMER_B_PRESCALE_32 0b101
|
||||
#define TIMER_B_PRESCALE_64 0b110
|
||||
#define TIMER_B_PRESCALE_256 0b111
|
||||
|
||||
#define TIMERN_16_DEF(X) \
|
||||
uint8_t pic32_timer##X##_init(uint32_t frequency); \
|
||||
void pic32_timer##X##_enable_irq(void); \
|
||||
void pic32_timer##X##_disable_irq(void); \
|
||||
void pic32_timer##X##_start(void); \
|
||||
void pic32_timer##X##_stop(void); \
|
||||
uint16_t pic32_timer##X##_get_val(void);
|
||||
|
||||
#define TIMERN_32_DEF(XY) \
|
||||
uint8_t pic32_timer##XY##_init(uint32_t frequency);\
|
||||
void pic32_timer##XY##_enable_irq(void); \
|
||||
void pic32_timer##XY##_disable_irq(void); \
|
||||
void pic32_timer##XY##_start(void); \
|
||||
void pic32_timer##XY##_stop(void); \
|
||||
uint32_t pic32_timer##XY##_get_val(void);
|
||||
|
||||
#define TIMER_INTERRUPT(XX, CALLBACK) \
|
||||
TIMER_ISR(_TIMER_##XX##_VECTOR) \
|
||||
{ \
|
||||
ENERGEST_ON(ENERGEST_TYPE_IRQ); \
|
||||
CALLBACK(); \
|
||||
ENERGEST_OFF(ENERGEST_TYPE_IRQ); \
|
||||
IFS0CLR = _IFS0_T##XX##IF_MASK; \
|
||||
}
|
||||
|
||||
#ifdef __USE_TIMER_1__
|
||||
TIMERN_16_DEF(1)
|
||||
#endif /* __USE_TIMER_1__ */
|
||||
|
||||
#if defined(__USE_TIMER_2__) || defined(__USE_TIMER_23__)
|
||||
TIMERN_16_DEF(2)
|
||||
#endif /* __USE_TIMER_2__ */
|
||||
|
||||
#if defined(__USE_TIMER_3__) || defined(__USE_TIMER_23__)
|
||||
TIMERN_16_DEF(3)
|
||||
#endif /* __USE_TIMER_3__ */
|
||||
|
||||
#if defined(__USE_TIMER_4__) || defined(__USE_TIMER_45__)
|
||||
TIMERN_16_DEF(4)
|
||||
#endif /* __USE_TIMER_4__ */
|
||||
|
||||
#if defined(__USE_TIMER_5__) || defined(__USE_TIMER_45__)
|
||||
TIMERN_16_DEF(5)
|
||||
#endif /* __USE_TIMER_5__ */
|
||||
|
||||
#ifdef __USE_TIMER_23__
|
||||
TIMERN_32_DEF(23)
|
||||
#endif /* __USE_TIMER_23__ */
|
||||
|
||||
#ifdef __USE_TIMER_45__
|
||||
TIMERN_32_DEF(45)
|
||||
#endif /* __USE_TIMER_45__ */
|
||||
|
||||
#endif /* __USE_TIMER__ */
|
||||
|
||||
#endif /* __INCLUDE_PIC32_TIMER_H__ */
|
||||
|
||||
/** @} */
|
||||
193
cpu/pic32/lib/pic32_uart.c
Normal file
193
cpu/pic32/lib/pic32_uart.c
Normal file
@ -0,0 +1,193 @@
|
||||
/*
|
||||
* Contiki PIC32 Port project
|
||||
*
|
||||
* Copyright (c) 2012,
|
||||
* Scuola Superiore Sant'Anna (http://www.sssup.it) and
|
||||
* Consorzio Nazionale Interuniversitario per le Telecomunicazioni
|
||||
* (http://www.cnit.it).
|
||||
*
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. Neither the name of the Institute nor the names of its contributors
|
||||
* may be used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
|
||||
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
|
||||
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||||
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*
|
||||
*/
|
||||
|
||||
/**
|
||||
* \addtogroup pic32 PIC32 Contiki Port
|
||||
*
|
||||
* @{
|
||||
*/
|
||||
|
||||
/**
|
||||
* \file pic32_uart.c
|
||||
* \brief UART Interface for PIC32MX (pic32mx795f512l)
|
||||
* \author Giovanni Pellerano <giovanni.pellerano@evilaliv3.org>
|
||||
* \date 2012-03-21
|
||||
*/
|
||||
|
||||
/*
|
||||
* PIC32MX795F512L - Specific Functions
|
||||
*
|
||||
* All the functions in this part of the file are specific for the
|
||||
* pic32mx795f512l that is characterized by registers' name that differ from
|
||||
* the 3xx and 4xx families of the pic32mx.
|
||||
*/
|
||||
|
||||
#define __UART_CODE_TEST__ 0
|
||||
|
||||
#if __UART_CODE_TEST__
|
||||
#define __USE_UART__ 1
|
||||
#define __USE_UART_PORT1A__ 1
|
||||
#define __USE_UART_PORT1B__ 1
|
||||
#define __USE_UART_PORT2A__ 1
|
||||
#define __USE_UART_PORT2B__ 1
|
||||
#define __USE_UART_PORT3A__ 1
|
||||
#define __USE_UART_PORT3B__ 1
|
||||
#endif /* __UART_CODE_TEST__ */
|
||||
|
||||
#ifdef __USE_UART__
|
||||
|
||||
#include <pic32_uart.h>
|
||||
#include <pic32_clock.h>
|
||||
#include <pic32_irq.h>
|
||||
|
||||
#include <p32xxxx.h>
|
||||
|
||||
#include "contiki.h"
|
||||
#include "lib/ringbuf.h"
|
||||
|
||||
/*---------------------------------------------------------------------------*/
|
||||
#define UART_PORT_INIT_XA(XX, YY, ZZ) \
|
||||
int8_t \
|
||||
pic32_uart##XX##A_init(uint32_t baudrate, uint16_t byte_format) \
|
||||
{ \
|
||||
/* Disable Interrupts: RX, TX, ERR */ \
|
||||
IEC##ZZ##CLR = _IEC##ZZ##_U##XX##ARXIE_MASK; \
|
||||
IFS##ZZ##CLR = _IFS##ZZ##_U##XX##AEIF_MASK | _IFS##ZZ##_U##XX##ATXIF_MASK | _IFS##ZZ##_U##XX##ARXIF_MASK; \
|
||||
\
|
||||
/* Clear thant Set Pri and Sub priority */ \
|
||||
IPC##YY##CLR = _IPC##YY##_U##XX##AIP_MASK | _IPC##YY##_U##XX##AIS_MASK; \
|
||||
IPC##YY##SET = (6 << _IPC##YY##_U##XX##AIP_POSITION) | (0 << _IPC##YY##_U##XX##AIS_POSITION); \
|
||||
\
|
||||
/* Mode Register Reset (this also stops UART) */ \
|
||||
U##XX##AMODE = 0; \
|
||||
\
|
||||
/* Use BRGH = 1: 4 divisor */ \
|
||||
U##XX##AMODESET = _U##XX##AMODE_BRGH_MASK; \
|
||||
U##XX##ABRG = pic32_clock_calculate_brg(4, baudrate); \
|
||||
\
|
||||
U##XX##AMODESET = byte_format & 0x07; /* Number of bit, Parity and Stop bits */ \
|
||||
\
|
||||
/* Status bits */ \
|
||||
U##XX##ASTA = 0; /* TX & RX interrupt modes */ \
|
||||
U##XX##ASTASET = _U##XX##ASTA_UTXEN_MASK | _U##XX##ASTA_URXEN_MASK; /* Enable TX, RX */ \
|
||||
\
|
||||
IEC##ZZ##SET = _IEC##ZZ##_U##XX##ARXIE_MASK; \
|
||||
\
|
||||
/* Enable UART port */ \
|
||||
U##XX##AMODESET = _U##XX##AMODE_UARTEN_MASK; \
|
||||
\
|
||||
return UART_NO_ERROR; \
|
||||
}
|
||||
/*---------------------------------------------------------------------------*/
|
||||
#define UART_PORT_INIT_XB(XX, YY, ZZ) \
|
||||
int8_t \
|
||||
pic32_uart##XX##B_init(uint32_t baudrate, uint16_t byte_format) \
|
||||
{ \
|
||||
/* Disable Interrupts: RX, TX, ERR */ \
|
||||
IEC##ZZ##CLR = _IEC##ZZ##_U##XX##BRXIE_MASK; \
|
||||
IFS##ZZ##CLR = _IFS##ZZ##_U##XX##BEIF_MASK | _IFS##ZZ##_U##XX##BTXIF_MASK | _IFS##ZZ##_U##XX##BRXIF_MASK; \
|
||||
\
|
||||
/* Clear thant Set Pri and Sub priority */ \
|
||||
IPC##YY##CLR = _IPC##YY##_U##XX##BIP_MASK | _IPC##YY##_U##XX##BIS_MASK; \
|
||||
IPC##YY##SET = (6 << _IPC##YY##_U##XX##BIP_POSITION) | (0 << _IPC##YY##_U##XX##BIS_POSITION); \
|
||||
\
|
||||
/* Mode Register Reset (this also stops UART) */ \
|
||||
U##XX##BMODE = 0; \
|
||||
\
|
||||
/* Use BRGH = 1: 4 divisor */ \
|
||||
U##XX##BMODESET = _U##XX##BMODE_BRGH_MASK; \
|
||||
U##XX##BBRG = pic32_clock_calculate_brg(4, baudrate); \
|
||||
\
|
||||
U##XX##BMODESET = byte_format & 0x07; /* Number of bit, Parity and Stop bits */ \
|
||||
\
|
||||
/* Status bits */ \
|
||||
U##XX##BSTA = 0; /* TX & RX interrupt modes */ \
|
||||
U##XX##BSTASET = _U##XX##BSTA_UTXEN_MASK | _U##XX##BSTA_URXEN_MASK; /* Enable TX, RX */ \
|
||||
\
|
||||
IEC##ZZ##SET = _IEC##ZZ##_U##XX##BRXIE_MASK; \
|
||||
\
|
||||
/* Enable UART port */ \
|
||||
U##XX##BMODESET = _U##XX##BMODE_UARTEN_MASK; \
|
||||
\
|
||||
return UART_NO_ERROR; \
|
||||
}
|
||||
/*---------------------------------------------------------------------------*/
|
||||
#define UART_PORT(XX, YY) \
|
||||
\
|
||||
int8_t \
|
||||
pic32_uart##XX##_write(uint8_t data) \
|
||||
{ \
|
||||
while (U##XX##STAbits.UTXBF); \
|
||||
U##XX##TXREG = data; \
|
||||
while (!U##XX##STAbits.TRMT); \
|
||||
\
|
||||
return UART_NO_ERROR; \
|
||||
}
|
||||
/*---------------------------------------------------------------------------*/
|
||||
|
||||
#ifdef __USE_UART_PORT1A__
|
||||
UART_PORT(1A, 0)
|
||||
UART_PORT_INIT_XA(1, 6, 0)
|
||||
#endif /* __USE_UART_PORT1A__ */
|
||||
|
||||
#ifdef __USE_UART_PORT1B__
|
||||
UART_PORT(1B, 2)
|
||||
UART_PORT_INIT_XB(1, 12, 2)
|
||||
#endif /* __USE_UART_PORT1B__ */
|
||||
|
||||
#ifdef __USE_UART_PORT2A__
|
||||
UART_PORT(2A, 1)
|
||||
UART_PORT_INIT_XA(2, 7, 1)
|
||||
#endif /* __USE_UART_PORT2A__ */
|
||||
|
||||
#ifdef __USE_UART_PORT2B__
|
||||
UART_PORT(2B, 2)
|
||||
UART_PORT_INIT_XB(2, 12, 2)
|
||||
#endif /* __USE_UART_PORT2B__ */
|
||||
|
||||
#ifdef __USE_UART_PORT3A__
|
||||
UART_PORT(3A, 1)
|
||||
UART_PORT_INIT_XA(3, 8, 1)
|
||||
#endif /* __USE_UART_PORT3A__ */
|
||||
|
||||
#ifdef __USE_UART_PORT3B__
|
||||
UART_PORT(3B, 2)
|
||||
UART_PORT_INIT_XB(3, 12, 2)
|
||||
#endif /* __USE_UART_PORT3B__ */
|
||||
|
||||
#endif /* __USE_UART__ */
|
||||
|
||||
/** @} */
|
||||
125
cpu/pic32/lib/pic32_uart.h
Normal file
125
cpu/pic32/lib/pic32_uart.h
Normal file
@ -0,0 +1,125 @@
|
||||
/*
|
||||
* Contiki PIC32 Port project
|
||||
*
|
||||
* Copyright (c) 2012,
|
||||
* Scuola Superiore Sant'Anna (http://www.sssup.it) and
|
||||
* Consorzio Nazionale Interuniversitario per le Telecomunicazioni
|
||||
* (http://www.cnit.it).
|
||||
*
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. Neither the name of the Institute nor the names of its contributors
|
||||
* may be used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
|
||||
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
|
||||
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||||
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*
|
||||
*/
|
||||
|
||||
/**
|
||||
* \addtogroup pic32 PIC32 Contiki Port
|
||||
*
|
||||
* @{
|
||||
*/
|
||||
|
||||
/**
|
||||
* \file pic32_uart.h
|
||||
* \brief UART Interface for PIC32MX (pic32mx795f512l)
|
||||
* \author Giovanni Pellerano <giovanni.pellerano@evilaliv3.org>
|
||||
* \date 2012-03-21
|
||||
*/
|
||||
|
||||
/*
|
||||
* PIC32MX795F512L - Specific Functions
|
||||
*
|
||||
* All the functions in this part of the file are specific for the
|
||||
* pic32mx795f512l that is characterized by registers' name that differ from
|
||||
* the 3xx and 4xx families of the pic32mx.
|
||||
*/
|
||||
|
||||
#ifndef __INCLUDE_PIC32_UART_H__
|
||||
#define __INCLUDE_PIC32_UART_H__
|
||||
|
||||
#ifdef __USE_UART__
|
||||
|
||||
#include <pic32_irq.h>
|
||||
|
||||
#include <p32xxxx.h>
|
||||
|
||||
#include <stdint.h>
|
||||
|
||||
#define BAUD2UBR(x) x
|
||||
|
||||
/* Returned Messages */
|
||||
#define UART_NO_ERROR 0
|
||||
#define UART_ERR_NO_DATA 1
|
||||
#define UART_ERR_OVERFLOW 2
|
||||
|
||||
#define UART_PORT_DEF(XX) \
|
||||
int8_t pic32_uart##XX##_init(uint32_t baudrate, uint16_t byte_format); \
|
||||
int8_t pic32_uart##XX##_write(uint8_t data);
|
||||
|
||||
#define UART_INTERRUPT(XX, Y, CALLBACK) \
|
||||
ISR(_UART_##XX##_VECTOR) \
|
||||
{ \
|
||||
volatile uint8_t byte; \
|
||||
if (IFS##Y##bits.U##XX##RXIF) { \
|
||||
if ((U##XX##STAbits.PERR == 0) && (U##XX##STAbits.FERR == 0)) { \
|
||||
CALLBACK(U##XX##RXREG); \
|
||||
} else { \
|
||||
byte = U##XX##RXREG; /* NULL READ */ \
|
||||
} \
|
||||
IFS##Y##CLR = _IFS##Y##_U##XX##RXIF_MASK; \
|
||||
} \
|
||||
if (U##XX##STAbits.OERR) { \
|
||||
U##XX##STACLR = _U##XX##STA_OERR_MASK; \
|
||||
} \
|
||||
}
|
||||
|
||||
#ifdef __USE_UART_PORT1A__
|
||||
UART_PORT_DEF(1A)
|
||||
#endif /* __USE_UART_PORT1A__ */
|
||||
|
||||
#ifdef __USE_UART_PORT1B__
|
||||
UART_PORT_DEF(1B)
|
||||
#endif /* __USE_UART_PORT1B__ */
|
||||
|
||||
#ifdef __USE_UART_PORT2A__
|
||||
UART_PORT_DEF(2A)
|
||||
#endif /* __USE_UART_PORT2A__ */
|
||||
|
||||
#ifdef __USE_UART_PORT2B__
|
||||
UART_PORT_DEF(2B)
|
||||
#endif /* __USE_UART_PORT2B__ */
|
||||
|
||||
#ifdef __USE_UART_PORT3A__
|
||||
UART_PORT_DEF(3A)
|
||||
#endif /* __USE_UART_PORT3A__ */
|
||||
|
||||
#ifdef __USE_UART_PORT3B__
|
||||
UART_PORT_DEF(3B)
|
||||
#endif /* __USE_UART_PORT3B__ */
|
||||
|
||||
#endif /* __USE_UART__ */
|
||||
|
||||
#endif /* __INCLUDE_PIC32_UART_H__ */
|
||||
|
||||
/** @} */
|
||||
59
cpu/pic32/mtarch.h
Normal file
59
cpu/pic32/mtarch.h
Normal file
@ -0,0 +1,59 @@
|
||||
/*
|
||||
* Contiki PIC32 Port project
|
||||
*
|
||||
* Copyright (c) 2012,
|
||||
* Scuola Superiore Sant'Anna (http://www.sssup.it) and
|
||||
* Consorzio Nazionale Interuniversitario per le Telecomunicazioni
|
||||
* (http://www.cnit.it).
|
||||
*
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. Neither the name of the Institute nor the names of its contributors
|
||||
* may be used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
|
||||
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
|
||||
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||||
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*
|
||||
*/
|
||||
|
||||
/**
|
||||
* \addtogroup pic32 PIC32 Contiki Port
|
||||
*
|
||||
* @{
|
||||
*/
|
||||
|
||||
/**
|
||||
* \file mtarch.h
|
||||
* \brief Implementation of multithreading in PIC32. To be done.
|
||||
* \author Giovanni Pellerano <giovanni.pellerano@evilaliv3.org>
|
||||
* \date 2012-03-23
|
||||
*/
|
||||
|
||||
#ifndef __MTARCH_H__
|
||||
#define __MTARCH_H__
|
||||
|
||||
struct mtarch_thread {
|
||||
short mt_thread;
|
||||
};
|
||||
|
||||
#endif /* __MTARCH_H__ */
|
||||
|
||||
/** @} */
|
||||
137
cpu/pic32/pic32.c
Normal file
137
cpu/pic32/pic32.c
Normal file
@ -0,0 +1,137 @@
|
||||
/*
|
||||
* Contiki PIC32 Port project
|
||||
*
|
||||
* Copyright (c) 2012,
|
||||
* Scuola Superiore Sant'Anna (http://www.sssup.it) and
|
||||
* Consorzio Nazionale Interuniversitario per le Telecomunicazioni
|
||||
* (http://www.cnit.it).
|
||||
*
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. Neither the name of the Institute nor the names of its contributors
|
||||
* may be used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
|
||||
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
|
||||
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||||
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*
|
||||
*/
|
||||
|
||||
/**
|
||||
* \addtogroup pic32-contiki-port PIC32 Contiki Port
|
||||
*
|
||||
* @{
|
||||
*/
|
||||
|
||||
/**
|
||||
* \file mtarch.h
|
||||
* \brief PIC32MX initialization routines
|
||||
* \author Giovanni Pellerano <giovanni.pellerano@evilaliv3.org>
|
||||
* \author Daniele Alessandrelli <d.alessandrelli@sssup.it>
|
||||
* \date 2012-03-23
|
||||
*/
|
||||
|
||||
/*
|
||||
* PIC32MX795F512L - Specific Functions
|
||||
*
|
||||
* All the functions in this part of the file are specific for the
|
||||
* pic32mx795f512l that is characterized by registers' name that differ from
|
||||
* the 3xx and 4xx families of the pic32mx.
|
||||
*/
|
||||
|
||||
#include <pic32_irq.h>
|
||||
|
||||
#include <p32xxxx.h>
|
||||
#include <peripheral/system.h>
|
||||
#include <stdint.h>
|
||||
|
||||
#include <dev/leds.h>
|
||||
|
||||
/* General Excepiton Handler: overrides the default handler */
|
||||
static enum {
|
||||
EXCEP_IRQ = 0, /* interrupt */
|
||||
EXCEP_AdEL = 4, /* address error exception (load or ifetch) */
|
||||
EXCEP_AdES, /* address error exception (store) */
|
||||
EXCEP_IBE, /* bus error (ifetch) */
|
||||
EXCEP_DBE, /* bus error (load/store) */
|
||||
EXCEP_Sys, /* syscall */
|
||||
EXCEP_Bp, /* breakpoint */
|
||||
EXCEP_RI, /* reserved instruction */
|
||||
EXCEP_CpU, /* coprocessor unusable */
|
||||
EXCEP_Overflow, /* arithmetic overflow */
|
||||
EXCEP_Trap, /* trap (possible divide by zero) */
|
||||
EXCEP_IS1 = 16, /* implementation specfic 1 */
|
||||
EXCEP_CEU, /* CorExtend unuseable */
|
||||
EXCEP_C2E /* coprocessor 2 */
|
||||
} cp0_exception_code;
|
||||
|
||||
static unsigned int cp0_exception_cause; /* CP0: CAUSE register */
|
||||
static unsigned int cp0_exception_epc; /* CP0: Exception Program Counter */
|
||||
|
||||
/*---------------------------------------------------------------------------*/
|
||||
void
|
||||
pic32_init(void)
|
||||
{
|
||||
unsigned long int r;
|
||||
|
||||
ASM_DIS_INT;
|
||||
|
||||
/* Disable JTAG Port */
|
||||
DDPCONbits.JTAGEN = 0;
|
||||
|
||||
// set the CP0 cause IV bit high
|
||||
asm volatile("mfc0 %0,$13" : "=r"(r));
|
||||
r |= 0x00800000;
|
||||
asm volatile("mtc0 %0,$13" : "+r"(r));
|
||||
|
||||
INTCONSET = _INTCON_MVEC_MASK;
|
||||
|
||||
SYSKEY = 0;
|
||||
SYSKEY = 0xaa996655;
|
||||
SYSKEY = 0x556699aa;
|
||||
|
||||
/* Enable Sleep Mode */
|
||||
OSCCONCLR = 1 << _OSCCON_SLPEN_POSITION;
|
||||
|
||||
SYSKEY = 0;
|
||||
|
||||
ASM_EN_INT;
|
||||
}
|
||||
|
||||
|
||||
/*---------------------------------------------------------------------------*/
|
||||
void
|
||||
_general_exception_handler(void)
|
||||
{
|
||||
asm volatile ("mfc0 %0,$14":"=r" (cp0_exception_epc));
|
||||
|
||||
asm volatile ("mfc0 %0,$13":"=r" (cp0_exception_cause));
|
||||
|
||||
cp0_exception_code = (cp0_exception_cause >> 2) & 0x0000001F;
|
||||
|
||||
leds_on(LEDS_ALL);
|
||||
|
||||
while(1){
|
||||
;
|
||||
}
|
||||
}
|
||||
/*---------------------------------------------------------------------------*/
|
||||
|
||||
/** @} */
|
||||
99
cpu/pic32/pic32.h
Normal file
99
cpu/pic32/pic32.h
Normal file
@ -0,0 +1,99 @@
|
||||
/*
|
||||
* Contiki PIC32 Port project
|
||||
*
|
||||
* Copyright (c) 2012,
|
||||
* Scuola Superiore Sant'Anna (http://www.sssup.it) and
|
||||
* Consorzio Nazionale Interuniversitario per le Telecomunicazioni
|
||||
* (http://www.cnit.it).
|
||||
*
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. Neither the name of the Institute nor the names of its contributors
|
||||
* may be used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
|
||||
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
|
||||
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||||
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*
|
||||
*/
|
||||
|
||||
/**
|
||||
* \defgroup pic32 PIC32 Contiki Port
|
||||
*
|
||||
* @{
|
||||
*/
|
||||
|
||||
/**
|
||||
* \file pic32.h
|
||||
* \brief PIC32MX initialization routines
|
||||
* \author Giovanni Pellerano <giovanni.pellerano@evilaliv3.org>
|
||||
* \date 2012-03-23
|
||||
*/
|
||||
|
||||
#ifndef __INCLUDE_PIC32_PIC32_H__
|
||||
#define __INCLUDE_PIC32_PIC32_H__
|
||||
|
||||
/*
|
||||
* PIC32MX795F512L - Specific Functions
|
||||
*
|
||||
* All the functions in this part of the file are specific for the
|
||||
* pic32mx795f512l that is characterized by registers' name that differ from
|
||||
* the 3xx and 4xx families of the pic32mx.
|
||||
*/
|
||||
|
||||
/* Initial Configuration
|
||||
*
|
||||
* Main Clock -> SYSCLK = (Crystal_Freq / FPLLIDIV) * FPLLMUL / FPLLODIV
|
||||
* Peripheral Clock -> PBCLK = SYSCLK / FPBDIV
|
||||
*
|
||||
* SYSCLK = 80MHz, PBCLK = 40MHz
|
||||
*/
|
||||
|
||||
#include <p32xxxx.h>
|
||||
|
||||
#pragma config FNOSC = PRIPLL // Oscillator Selection
|
||||
#pragma config FPLLIDIV = DIV_2 // PLL Input Divider (PIC32 Starter Kit: use divide by 2 only)
|
||||
#pragma config FPLLMUL = MUL_20 // PLL Multiplier
|
||||
#pragma config FPLLODIV = DIV_1 // PLL Output Divider
|
||||
#pragma config FPBDIV = DIV_1 // Peripheral Clock divisor
|
||||
#pragma config FWDTEN = OFF // Watchdog Timer
|
||||
#pragma config WDTPS = PS32768 // Watchdog Timer Postscale
|
||||
#pragma config FCKSM = CSDCMD // Clock Switching & Fail Safe Clock Monitor
|
||||
#pragma config OSCIOFNC = OFF // CLKO Enable
|
||||
#pragma config POSCMOD = HS // Primary Oscillator
|
||||
#pragma config IESO = OFF // Internal/External Switch-over
|
||||
#pragma config FSOSCEN = OFF // Secondary Oscillator Enable
|
||||
#pragma config CP = OFF // Code Protect
|
||||
#pragma config BWP = OFF // Boot Flash Write Protect
|
||||
#pragma config PWP = OFF // Program Flash Write Protect
|
||||
#pragma config ICESEL = ICS_PGx2 // ICE/ICD Comm Channel Select
|
||||
#pragma config DEBUG = OFF // Debugger Disabled for Starter Kit
|
||||
#pragma config FSRSSEL = PRIORITY_7
|
||||
|
||||
/* external PHY in RMII/default configuration */
|
||||
|
||||
#pragma config FMIIEN = OFF
|
||||
#pragma config FETHIO = ON
|
||||
|
||||
void pic32_init(void);
|
||||
|
||||
#endif /* __INCLUDE_PIC32_PIC32_H__ */
|
||||
|
||||
/** @} */
|
||||
112
cpu/pic32/rtimer-arch.c
Normal file
112
cpu/pic32/rtimer-arch.c
Normal file
@ -0,0 +1,112 @@
|
||||
/*
|
||||
* Contiki PIC32 Port project
|
||||
*
|
||||
* Copyright (c) 2012,
|
||||
* Scuola Superiore Sant'Anna (http://www.sssup.it) and
|
||||
* Consorzio Nazionale Interuniversitario per le Telecomunicazioni
|
||||
* (http://www.cnit.it).
|
||||
*
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. Neither the name of the Institute nor the names of its contributors
|
||||
* may be used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
|
||||
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
|
||||
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||||
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*
|
||||
*/
|
||||
|
||||
/**
|
||||
* \addtogroup pic32 PIC32 Contiki Port
|
||||
*
|
||||
* @{
|
||||
*/
|
||||
|
||||
/**
|
||||
* \file rtimer-arch.c
|
||||
* \brief PIC32MX RTIMER routines
|
||||
* \author Giovanni Pellerano <giovanni.pellerano@evilaliv3.org>
|
||||
* \date 2012-04-11
|
||||
*/
|
||||
|
||||
/*
|
||||
* PIC32MX795F512L - Specific Functions
|
||||
*
|
||||
* All the functions in this part of the file are specific for the
|
||||
* pic32mx795f512l that is characterized by registers' name that differ from
|
||||
* the 3xx and 4xx families of the pic32mx.
|
||||
*/
|
||||
|
||||
#include <pic32_timer.h>
|
||||
|
||||
#include "contiki.h"
|
||||
|
||||
#include <sys/rtimer.h>
|
||||
#include <sys/clock.h>
|
||||
|
||||
#include <stdio.h>
|
||||
|
||||
#include <p32xxxx.h>
|
||||
|
||||
static uint32_t schedule;
|
||||
|
||||
/*---------------------------------------------------------------------------*/
|
||||
void
|
||||
rtimer_callback(void)
|
||||
{
|
||||
pic32_timer23_disable_irq();
|
||||
TMR2 = schedule;
|
||||
|
||||
rtimer_run_next();
|
||||
}
|
||||
/*---------------------------------------------------------------------------*/
|
||||
void
|
||||
rtimer_arch_init(void)
|
||||
{
|
||||
pic32_timer23_disable_irq();
|
||||
IPC3CLR = _IPC3_T3IP_MASK | _IPC3_T3IS_MASK;
|
||||
IPC3SET = (7 << _IPC3_T3IP_POSITION) | (3 << _IPC3_T3IS_POSITION);
|
||||
T2CON = 0;
|
||||
T3CON = 0;
|
||||
T2CONSET = _T2CON_T32_MASK | (TIMER_B_PRESCALE_256 << _T2CON_TCKPS_POSITION);
|
||||
PR2 = 0xFFFFFFFF;
|
||||
TMR2 = 0;
|
||||
pic32_timer23_start();
|
||||
}
|
||||
/*---------------------------------------------------------------------------*/
|
||||
rtimer_clock_t
|
||||
rtimer_arch_now(void)
|
||||
{
|
||||
return TMR2;
|
||||
}
|
||||
/*---------------------------------------------------------------------------*/
|
||||
void
|
||||
rtimer_arch_schedule(rtimer_clock_t t)
|
||||
{
|
||||
schedule = t;
|
||||
PR2 = t;
|
||||
pic32_timer23_enable_irq();
|
||||
}
|
||||
/*---------------------------------------------------------------------------*/
|
||||
|
||||
TIMER_INTERRUPT(3, rtimer_callback);
|
||||
|
||||
/** @} */
|
||||
63
cpu/pic32/rtimer-arch.h
Normal file
63
cpu/pic32/rtimer-arch.h
Normal file
@ -0,0 +1,63 @@
|
||||
/*
|
||||
* Contiki PIC32 Port project
|
||||
*
|
||||
* Copyright (c) 2012,
|
||||
* Scuola Superiore Sant'Anna (http://www.sssup.it) and
|
||||
* Consorzio Nazionale Interuniversitario per le Telecomunicazioni
|
||||
* (http://www.cnit.it).
|
||||
*
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. Neither the name of the Institute nor the names of its contributors
|
||||
* may be used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
|
||||
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
|
||||
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||||
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*
|
||||
*/
|
||||
|
||||
/**
|
||||
* \addtogroup pic32 PIC32 Contiki Port
|
||||
*
|
||||
* @{
|
||||
*/
|
||||
|
||||
/**
|
||||
* \file rtimer-arch.h
|
||||
* \brief PIC32MX RTIMER routines
|
||||
* \author Giovanni Pellerano <giovanni.pellerano@evilaliv3.org>
|
||||
* \date 2012-04-11
|
||||
*/
|
||||
|
||||
#ifndef __RTIMER_ARCH_H__
|
||||
#define __RTIMER_ARCH_H__
|
||||
|
||||
#include "contiki-conf.h"
|
||||
|
||||
#include <stdint.h>
|
||||
|
||||
rtimer_clock_t rtimer_arch_now(void);
|
||||
|
||||
#define RTIMER_ARCH_SECOND 312500
|
||||
|
||||
#endif /* __RTIMER_ARCH_H__ */
|
||||
|
||||
/** @} */
|
||||
96
cpu/pic32/slip-uart.c
Normal file
96
cpu/pic32/slip-uart.c
Normal file
@ -0,0 +1,96 @@
|
||||
/*
|
||||
* Contiki PIC32 Port project
|
||||
*
|
||||
* Copyright (c) 2012,
|
||||
* Scuola Superiore Sant'Anna (http://www.sssup.it) and
|
||||
* Consorzio Nazionale Interuniversitario per le Telecomunicazioni
|
||||
* (http://www.cnit.it).
|
||||
*
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. Neither the name of the Institute nor the names of its contributors
|
||||
* may be used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
|
||||
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
|
||||
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||||
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*
|
||||
*/
|
||||
|
||||
/**
|
||||
* \addtogroup pic32 PIC32 Contiki Port
|
||||
*
|
||||
* @{
|
||||
*/
|
||||
|
||||
/**
|
||||
* \file slip-uart.c
|
||||
* \brief PIC32MX Slip interface routines
|
||||
* \author Giovanni Pellerano <giovanni.pellerano@evilaliv3.org>
|
||||
* \date 2012-03-23
|
||||
*/
|
||||
|
||||
#include "contiki.h"
|
||||
#include "dev/slip.h"
|
||||
|
||||
#include <pic32_uart.h>
|
||||
|
||||
#define DEBUG 1
|
||||
#if DEBUG
|
||||
#include <stdio.h>
|
||||
#define PRINTF(...) printf(__VA_ARGS__)
|
||||
#else
|
||||
#define PRINTF(...)
|
||||
#endif
|
||||
|
||||
#define SLIP_UART(XX) \
|
||||
void \
|
||||
slip_arch_writeb(unsigned char c) \
|
||||
{ \
|
||||
pic32_uart##XX##_write(c); \
|
||||
} \
|
||||
\
|
||||
void \
|
||||
slip_arch_init(unsigned long ubr) \
|
||||
{ \
|
||||
pic32_uart##XX##_init(ubr, 0); \
|
||||
\
|
||||
PRINTF("Initializing slip uart: %lubps\n", ubr); \
|
||||
} \
|
||||
\
|
||||
UART_INTERRUPT(XX, 0, slip_input_byte);
|
||||
|
||||
#ifdef __USE_UART_PORT1A_FOR_SLIP__
|
||||
SLIP_UART(1A);
|
||||
#elif defined __USE_UART_PORT1B_FOR_SLIP__
|
||||
SLIP_UART(1B);
|
||||
#elif defined __USE_UART_PORT2A_FOR_SLIP__
|
||||
SLIP_UART(2A);
|
||||
#elif defined __USE_UART_PORT2B_FOR_SLIP__
|
||||
SLIP_UART(2B);
|
||||
#elif defined __USE_UART_PORT3A_FOR_SLIP__
|
||||
SLIP_UART(3A);
|
||||
#elif defined __USE_UART_PORT3B_FOR_SLIP__
|
||||
SLIP_UART(3B);
|
||||
#else
|
||||
SLIP_UART(1A);
|
||||
#endif
|
||||
|
||||
/** @} */
|
||||
109
cpu/pic32/watchdog.c
Normal file
109
cpu/pic32/watchdog.c
Normal file
@ -0,0 +1,109 @@
|
||||
/*
|
||||
* Contiki PIC32 Port project
|
||||
*
|
||||
* Copyright (c) 2012,
|
||||
* Scuola Superiore Sant'Anna (http://www.sssup.it) and
|
||||
* Consorzio Nazionale Interuniversitario per le Telecomunicazioni
|
||||
* (http://www.cnit.it).
|
||||
*
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. Neither the name of the Institute nor the names of its contributors
|
||||
* may be used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
|
||||
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
|
||||
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||||
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*
|
||||
*/
|
||||
|
||||
/**
|
||||
* \addtogroup pic32 PIC32 Contiki Port
|
||||
*
|
||||
* @{
|
||||
*/
|
||||
|
||||
/**
|
||||
* \file watchdog.c
|
||||
* \brief PIC32MX Watchdog routines
|
||||
* \author Giovanni Pellerano <giovanni.pellerano@evilaliv3.org>
|
||||
* \date 2012-03-23
|
||||
*/
|
||||
|
||||
#include "dev/watchdog.h"
|
||||
|
||||
#include <pic32_irq.h>
|
||||
|
||||
#include <p32xxxx.h>
|
||||
|
||||
/*---------------------------------------------------------------------------*/
|
||||
void
|
||||
watchdog_init(void)
|
||||
{
|
||||
WDTCON = 0;
|
||||
OSCCONSET = 0x10; /* Set power mode saving to Idle */
|
||||
}
|
||||
/*---------------------------------------------------------------------------*/
|
||||
void
|
||||
watchdog_start(void)
|
||||
{
|
||||
WDTCONSET = _WDTCON_ON_MASK;
|
||||
}
|
||||
/*---------------------------------------------------------------------------*/
|
||||
void
|
||||
watchdog_periodic(void)
|
||||
{
|
||||
WDTCONSET = _WDTCON_WDTCLR_MASK;
|
||||
}
|
||||
/*---------------------------------------------------------------------------*/
|
||||
void
|
||||
watchdog_stop(void)
|
||||
{
|
||||
WDTCONCLR = _WDTCON_ON_MASK;
|
||||
}
|
||||
/*---------------------------------------------------------------------------*/
|
||||
void
|
||||
watchdog_reboot(void)
|
||||
{
|
||||
volatile int *p = (int *)&RSWRST;
|
||||
|
||||
/* Unlock sequence */
|
||||
ASM_DIS_INT;
|
||||
if(!(DMACONbits.SUSPEND)){
|
||||
DMACONSET=_DMACON_SUSPEND_MASK; // suspend
|
||||
while((DMACONbits.DMABUSY)) {
|
||||
; // wait to be actually suspended
|
||||
}
|
||||
}
|
||||
|
||||
SYSKEY = 0;
|
||||
SYSKEY = 0xaa996655;
|
||||
SYSKEY = 0x556699aa;
|
||||
|
||||
RSWRSTSET=_RSWRST_SWRST_MASK;
|
||||
*p;
|
||||
|
||||
while(1) {
|
||||
;
|
||||
}
|
||||
}
|
||||
/*---------------------------------------------------------------------------*/
|
||||
|
||||
/** @} */
|
||||
Loading…
Reference in New Issue
Block a user