60 lines
909 B
C++
60 lines
909 B
C++
#include <avr/io.h>
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#include <avr/interrupt.h>
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#include <util/delay.h>
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#include <avr/wdt.h>
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#include "global_vars.h"
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#include "selftest.h"
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#define LED PB0
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ISR(WDT_vect)
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{
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while(1)
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{
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PORTB ^= _BV(LED);
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_delay_ms(200);
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}
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WDTCSR |= _BV(WDIE);
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}
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void initAll()
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{
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spi.init();
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beba0.setDirA(0x00); // alle Ausgang
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beba0.setDirB(0xFF); // alle Eingang
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beba1.setDirA(0x00); // alle Ausgang
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beba1.setDirB(0xFF); // alle Eingang
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sw.setDirB(0xFF); // alle Eingang
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adu.init();
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usart.init();
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}
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void handleRequest()
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{
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const uint8_t req = usart.readByte();
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uint8_t dummy = usart.readByte();
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usart.writeByte(USART::MSG_OK);
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usart.writeByte(dummy);
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}
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int main()
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{
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/*WDTCSR = _BV(WDIE) | _BV(WDP3) | _BV(WDP0);
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DDRB |= _BV(LED);
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PORTB &= ~_BV(LED);
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wdt_reset();
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sei();*/
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initAll();
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while(1)
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{
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handleRequest();
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}
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return 0;
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}
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