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/*
* spreadspace avr utils
*
*
* Copyright (C) 2013-2015 Christian Pointner <equinox@spreadspace.org>
*
* This file is part of spreadspace avr utils.
*
* spreadspace avr utils is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* any later version.
*
* spreadspace avr utils is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with spreadspace avr utils. If not, see <http://www.gnu.org/licenses/>.
*/
#include <avr/io.h>
#include <avr/wdt.h>
#include <avr/interrupt.h>
#include <avr/power.h>
#include <stdio.h>
#include "util.h"
#include "led.h"
#include "usbio.h"
/* #define PWM_VAL OCR1BL */
/* void pwm_init(void) */
/* { */
/* DDRB |= (1<<PB6); */
/* TCCR1B = 0; */
/* TCNT1 = 0; */
/* OCR1B = 0; */
/* TCCR1A = (1<<COM1B1) | (1<<WGM10); */
/* TCCR1B = (1<<WGM12) | (1<<CS10); */
/* } */
/* inline void pwm_set(uint8_t val) */
/* { */
/* PWM_VAL = val; */
/* } */
/* inline void pwm_inc(void) */
/* { */
/* if(PWM_VAL < 255) */
/* PWM_VAL++; */
/* } */
/* inline void pwm_dec(void) */
/* { */
/* if(PWM_VAL > 0) */
/* PWM_VAL--; */
/* } */
void handle_cmd(uint8_t cmd)
{
switch(cmd) {
case '0': led_off(); printf("ok\r\n"); break;
case '1': led_on(); printf("ok\r\n"); break;
/* case '+': pwm_inc(); printf("pwm = %d\r\n", PWM_VAL); break; */
/* case '-': pwm_dec(); printf("pwm = %d\r\n", PWM_VAL); break; */
case 'r': reset2bootloader(); break;
default: printf("error\r\n"); return;
}
}
int main(void)
{
MCUSR &= ~(1 << WDRF);
wdt_disable();
cpu_init();
jtag_disable();
led_init();
usbio_init();
// pwm_init();
sei();
// FAN tacho input (enable Pull-Up)
DDRD &= ~(1<<PD4);
PORTD |= (1<<PD4);
led_on();
for(;;) {
int16_t BytesReceived = usbio_bytes_received();
while(BytesReceived > 0) {
int ReceivedByte = fgetc(stdin);
if(ReceivedByte != EOF) {
handle_cmd(ReceivedByte);
}
BytesReceived--;
}
usbio_task();
}
}
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