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/*---------------------------------------------------------------------------------------------------------------------------------------------------
* irsndmain.c - demo main module to test IRSND encoder on AVRs
*
* Copyright (c) 2010-2016 Frank Meyer - frank(at)fli4l.de
*
* ATMEGA88 @ 8 MHz internal RC Osc with BODLEVEL 4.3V: lfuse: 0xE2 hfuse: 0xDC efuse: 0xF9
* ATMEGA88 @ 8 MHz external Crystal Osc with BODLEVEL 4.3V: lfuse: 0xFF hfuse: 0xDC efuse: 0xF9
*
* This program 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 2 of the License, or
* (at your option) any later version.
*---------------------------------------------------------------------------------------------------------------------------------------------------
*/
#include "irsnd.h"
#ifndef F_CPU
# error F_CPU unknown
#endif
void
timer1_init (void)
{
#if defined (__AVR_ATtiny45__) || defined (__AVR_ATtiny85__) // ATtiny45 / ATtiny85:
OCR1C = (F_CPU / F_INTERRUPTS / 4) - 1; // compare value: 1/15000 of CPU frequency, presc = 4
TCCR1 = (1 << CTC1) | (1 << CS11) | (1 << CS10); // switch CTC Mode on, set prescaler to 4
#else // ATmegaXX:
OCR1A = (F_CPU / F_INTERRUPTS) - 1; // compare value: 1/15000 of CPU frequency
TCCR1B = (1 << WGM12) | (1 << CS10); // switch CTC Mode on, set prescaler to 1
#endif
#ifdef TIMSK1
TIMSK1 = 1 << OCIE1A; // OCIE1A: Interrupt by timer compare
#else
TIMSK = 1 << OCIE1A; // OCIE1A: Interrupt by timer compare
#endif
}
#ifdef TIM1_COMPA_vect // ATtiny84
#define COMPA_VECT TIM1_COMPA_vect
#else
#define COMPA_VECT TIMER1_COMPA_vect // ATmega
#endif
/*---------------------------------------------------------------------------------------------------------------------------------------------------
* timer 1 compare handler, called every 1/10000 sec
*---------------------------------------------------------------------------------------------------------------------------------------------------
*/
ISR(COMPA_VECT) // Timer1 output compare A interrupt service routine, called every 1/15000 sec
{
(void) irsnd_ISR(); // call irsnd ISR
// call other timer interrupt routines here...
}
/*---------------------------------------------------------------------------------------------------------------------------------------------------
* MAIN: main routine
*---------------------------------------------------------------------------------------------------------------------------------------------------
*/
int
main (void)
{
IRMP_DATA irmp_data;
irsnd_init(); // initialize irsnd
timer1_init(); // initialize timer
sei (); // enable interrupts
for (;;)
{
irmp_data.protocol = IRMP_NEC_PROTOCOL; // use NEC protocol
irmp_data.address = 0x00FF; // set address to 0x00FF
irmp_data.command = 0x0001; // set command to 0x0001
irmp_data.flags = 0; // don't repeat frame
irsnd_send_data (&irmp_data, TRUE); // send frame, wait for completion
_delay_ms (1000);
}
}
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