nes-proj/cpu/mc1322x/tests/rftest-tx.c

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/*
* Copyright (c) 2010, Mariano Alvira <mar@devl.org> and other contributors
* to the MC1322x project (http://mc1322x.devl.org)
* 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.
*
* This file is part of libmc1322x: see http://mc1322x.devl.org
* for details.
*
* $Id: rftest-tx.c,v 1.2 2010/11/07 14:10:16 maralvira Exp $
*/
#include <mc1322x.h>
#include <board.h>
#include <stdio.h>
#include "tests.h"
#include "config.h"
#define LED LED_RED
/* 802.15.4 PSDU is 127 MAX */
/* 2 bytes are the FCS */
/* therefore 125 is the max payload length */
#define PAYLOAD_LEN 16
#define DELAY 100000
void fill_packet(volatile packet_t *p) {
static volatile uint8_t count=0;
volatile uint8_t i;
p->length = PAYLOAD_LEN;
p->offset = 0;
for(i=0; i<PAYLOAD_LEN; i++) {
p->data[i] = count++;
}
/* acks get treated differently, even in promiscuous mode */
/* setting the third bit makes sure that we never send an ack */
/* or any valid 802.15.4-2006 packet */
p->data[0] |= (1 << 3);
}
void main(void) {
volatile uint32_t i;
volatile packet_t *p;
/* trim the reference osc. to 24MHz */
trim_xtal();
uart_init(INC, MOD, SAMP);
vreg_init();
maca_init();
set_channel(0); /* channel 11 */
// set_power(0x0f); /* 0xf = -1dbm, see 3-22 */
// set_power(0x11); /* 0x11 = 3dbm, see 3-22 */
set_power(0x12); /* 0x12 is the highest, not documented */
/* sets up tx_on, should be a board specific item */
*GPIO_FUNC_SEL2 = (0x01 << ((44-16*2)*2));
gpio_pad_dir_set( 1ULL << 44 );
print_welcome("rftest-tx");
while(1) {
/* call check_maca() periodically --- this works around */
/* a few lockup conditions */
check_maca();
while((p = rx_packet())) {
if(p) free_packet(p);
}
p = get_free_packet();
if(p) {
fill_packet(p);
printf("rftest-tx --- ");
print_packet(p);
tx_packet(p);
for(i=0; i<DELAY; i++) { continue; }
}
}
}