237 lines
5.5 KiB
C
237 lines
5.5 KiB
C
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/* Copyright (c) 2008, Daniel Willmann <daniel@totalueberwachung.de>
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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
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials provided
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* with the distribution.
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* 3. The name of the author may not be used to endorse or promote
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* products derived from this software without specific prior
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* written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
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* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
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* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* This file is part of the Contiki OS
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*
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*
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*/
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#include "contiki.h"
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#include "dev/rs232.h"
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#include <avr/io.h>
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#include <stdio.h>
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#include <dev/watchdog.h>
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#include <avr/pgmspace.h>
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#define PRINTA(FORMAT,args...) printf_P(PSTR(FORMAT),##args)
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#define DEBUG 0
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#if DEBUG
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#define PRINTD PRINTA
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#else
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#define PRINTD(...)
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#endif
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/* Test rtimers, also stack monitor and time stamps */
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#define TESTRTIMER 1
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#if TESTRTIMER
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#define STAMPS 30
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#define STACKMONITOR 128
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uint8_t rtimerflag=1;
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uint16_t rtime;
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struct rtimer rt;
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void rtimercycle(void) {rtimerflag=1;}
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#endif /* TESTRTIMER */
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#if defined (__AVR_ATmega8__)
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FUSES =
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{
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.low = 0xe0,
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.high = 0xd9,
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};
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#elif defined (__AVR_ATmega16__)
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FUSES =
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{
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.low = 0xe0,
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.high = 0x99,
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};
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#elif defined (__AVR_ATmega644__)
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FUSES =
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{
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.low = 0xe0,
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.high = 0x99,
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.extended = 0xff,
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};
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//MCU=atmega8515
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//MCU=atmega328p
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//MCU=atmega32
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#endif
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PROCESS(led_process, "LED process");
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PROCESS_THREAD(led_process, ev, data)
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{
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static struct etimer etimer;
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PROCESS_BEGIN();
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while (1) {
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PRINTD("LED1\r\n");
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PORTB |= (1<<PB1);
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PORTD |= (1<<PD3);
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etimer_set(&etimer, CLOCK_SECOND*0.5);
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PROCESS_WAIT_UNTIL(etimer_expired(&etimer));
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PORTB &= ~(1<<PB1);
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PORTD &= ~(1<<PD3);
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etimer_set(&etimer, CLOCK_SECOND*0.5);
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PROCESS_WAIT_UNTIL(etimer_expired(&etimer));
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}
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PROCESS_END();
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}
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PROCESS(led2_process, "LED process");
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PROCESS_THREAD(led2_process, ev, data)
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{
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static struct etimer etimer;
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PROCESS_BEGIN();
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while (1) {
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PRINTD("LED2\r\n");
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PORTB |= (1<<PB0);
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PORTD |= (1<<PD2);
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etimer_set(&etimer, CLOCK_SECOND*0.3);
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PROCESS_WAIT_UNTIL(etimer_expired(&etimer));
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PORTB &= ~(1<<PB0);
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PORTD &= ~(1<<PD2);
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etimer_set(&etimer, CLOCK_SECOND*0.3);
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PROCESS_WAIT_UNTIL(etimer_expired(&etimer));
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}
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PROCESS_END();
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}
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void led_init()
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{
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DDRB |= (1<<PB1)|(1<<PB0);
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PORTB &= ~((1<<PB1)|(1<<PB0));
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DDRD |= (1<<PD2)|(1<<PD3);
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PORTD &= ~((1<<PD2)|(1<<PD3));
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}
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/* These can also be explicitly started below */
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PROCINIT(&etimer_process, &led_process, &led2_process);
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void
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initialize(void)
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{
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watchdog_init();
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watchdog_start();
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#if STACKMONITOR
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/* Simple stack pointer highwater monitor. Checks for magic numbers in the main
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* loop. In conjuction with TESTRTIMER, never-used stack will be printed
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* every STACKMONITOR seconds.
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*/
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{
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extern uint16_t __bss_end;
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uint16_t p=(uint16_t)&__bss_end;
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do {
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*(uint16_t *)p = 0x4242;
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p+=4;
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} while (p<SP-4); //don't overwrite our own stack
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}
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#endif
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/* rtimers needed for radio cycling */
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rtimer_init();
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rs232_init(RS232_PORT_0, BAUD_RATE(38400), USART_DATA_BITS_8 | USART_PARITY_NONE | USART_STOP_BITS_1);
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rs232_redirect_stdout(RS232_PORT_0);
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clock_init();
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sei();
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/* Initialize drivers and event kernel */
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process_init();
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led_init();
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#if 0
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procinit_init();
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#else
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process_start(&etimer_process, NULL);
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process_start(&led_process, NULL);
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process_start(&led2_process, NULL);
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#endif
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PRINTA(CONTIKI_VERSION_STRING " started\r\n");
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/* Comment this out if autostart_processes not defined at link */
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/* Note AUTOSTART_PROCESSES(...) is only effective in the .co module */
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autostart_start(autostart_processes);
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}
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int
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main(void)
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{
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initialize();
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while(1) {
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process_run();
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#if TESTRTIMER
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/* Timeout can be increased up to 8 seconds maximum.
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* A one second cycle is convenient for triggering the various debug printouts.
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* The triggers are staggered to avoid printing everything at once.
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*/
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if (rtimerflag) {
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rtimer_set(&rt, RTIMER_NOW()+ RTIMER_ARCH_SECOND*1UL, 1,(void *) rtimercycle, NULL);
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rtimerflag=0;
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#if STAMPS
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if ((rtime%STAMPS)==0) {
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PRINTA("%us ",rtime);
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}
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#endif
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rtime+=1;
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#if STACKMONITOR
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if ((rtime%STACKMONITOR)==3) {
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extern uint16_t __bss_end;
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uint16_t p=(uint16_t)&__bss_end;
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do {
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if (*(uint16_t *)p != 0x4242) {
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PRINTA("Never-used stack > %d bytes\n",p-(uint16_t)&__bss_end);
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break;
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}
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p+=4;
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} while (p<RAMEND-4);
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}
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#endif
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}
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#endif /* TESTRTIMER */
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}
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return 0;
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}
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