86 lines
2.8 KiB
C
86 lines
2.8 KiB
C
/*
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* Copyright (c) 2010, Mariano Alvira <mar@devl.org> and other contributors
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* to the MC1322x project (http://mc1322x.devl.org)
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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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* This file is part of libmc1322x: see http://mc1322x.devl.org
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* for details.
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*
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*
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*/
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#include <mc1322x.h>
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#include <board.h>
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#include <stdio.h>
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#include "config.h"
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#include "pwm.h"
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#include "rtc.h"
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int main(void)
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{
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int x = 32768;
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trim_xtal();
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uart1_init(INC,MOD,SAMP);
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rtc_init();
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printf("pwm test\r\n");
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pwm_init_stopped(TMR0, 12000000, x);
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pwm_init_stopped(TMR1, 12000000, x);
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TMR0->ENBL |= TMR_ENABLE_BIT(TMR0) | TMR_ENABLE_BIT(TMR1);
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for(;;) {
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printf("duty %d = %d%%\r\n", x, ((x * 100 + 32768) / 65536));
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switch(uart1_getc()) {
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case '[': x -= 1; break;
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case ']': x += 1; break;
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case '-': x -= 32; break;
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case '=': x += 32; break;
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case '_': x -= 512; break;
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case '+': x += 512; break;
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case '`': x = 65535 * 0/10; break;
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case '1': x = 65535 * 1/10; break;
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case '2': x = 65535 * 2/10; break;
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case '3': x = 65535 * 3/10; break;
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case '4': x = 65535 * 4/10; break;
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case '5': x = 65535 * 5/10; break;
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case '6': x = 65535 * 6/10; break;
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case '7': x = 65535 * 7/10; break;
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case '8': x = 65535 * 8/10; break;
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case '9': x = 65535 * 9/10; break;
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case '0': x = 65535 * 10/10; break;
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}
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x &= 65535;
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pwm_duty(TMR0, x);
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}
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}
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