119 lines
1.7 KiB
C++
119 lines
1.7 KiB
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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#include "requests.h"
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#define WDT_TIMEOUT WDTO_15MS
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const uint8_t CDUMMY __attribute__((used)) = 0;
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ISR(WDT_vect)
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{
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WDTCSR = _BV(WDIE) | _BV(WDE);
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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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// aktiviere Interrupts
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sei();
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// starte WDT
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wdt_enable(WDT_TIMEOUT);
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WDTCSR = _BV(WDIE) | _BV(WDE);
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wdt_reset();
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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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wdt_reset();
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switch(req)
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{
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case RQ_DISC:
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{
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// sinnlose Abfrage, damit Compiler nicht nervt
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uint8_t dummy = 0xFF;
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if(dummy)
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// leere Puffer
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while(UCSR0A & (1<<RXC0)) dummy = UDR0;
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}
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break;
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case RQ_TEST:
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rqTestConnection();
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break;
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case RQ_INFO:
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rqBoardInfo();
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break;
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case RQ_INT:
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rqTestIntConv();
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break;
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case RQ_BA0:
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rqDigitalWrite0();
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break;
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case RQ_BA1:
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rqDigitalWrite1();
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break;
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case RQ_BE0:
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rqDigitalRead0();
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break;
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case RQ_BE1:
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rqDigitalRead1();
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break;
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case RQ_AA0:
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rqAnalogWrite0();
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break;
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case RQ_AA1:
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rqAnalogWrite1();
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break;
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case RQ_ADC:
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rqAnalogRead();
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break;
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case RQ_ADC_DAC_STROKE:
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rqAdcDacStroke();
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break;
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default:
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break;
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}
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}
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int main()
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{
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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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