/*--------------------------------------------------------------------------------------------------------------------------------------------------- * irsndmain.c - demo main module to test irmp decoder * * Copyright (c) 2010 Frank Meyer - frank(at)fli4l.de * * ATMEGA88 @ 8 MHz * * Fuses: lfuse: 0xE2 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. *--------------------------------------------------------------------------------------------------------------------------------------------------- */ /*--------------------------------------------------------------------------------------------------------------------------------------------------- * uncomment this for codevision compiler: *--------------------------------------------------------------------------------------------------------------------------------------------------- */ // #define CODEVISION // to use Codevision Compiler instead of gcc #ifdef CODEVISION #include #include #define uint8_t unsigned char #define uint16_t unsigned int #define F_CPU 8000000 // change for Codevision here, if you use WinAVR, use Project -> Configuration Options instead // register values from datasheet for ATMega88 #define OCIE1A 1 #define WGM12 3 #define CS10 0 #define UDRE0 5 #define TXEN0 3 #include "irmp.h" #include "isnd.h" #include "irmp.c" #include "isnd.c" #else // gcc compiler #include #include #include #include #include #include "irmp.h" #include "irsndconfig.h" #include "irsnd.h" #endif // CODEVISION #ifndef F_CPU #error F_CPU unkown #endif void timer_init (void) { #ifdef CODEVISION OCR1AH = ((F_CPU / F_INTERRUPTS) >> 8) & 0xFF; // compare value: 1/10000 of CPU frequency (upper byte) OCR1AL = ((F_CPU / F_INTERRUPTS) - 1) & 0xFF; // compare value: 1/10000 of CPU frequency (lower byte) #else // gcc OCR1A = (F_CPU / F_INTERRUPTS) - 1; // compare value: 1/10000 of CPU frequency #endif // CODEVISION TCCR1B = (1 << WGM12) | (1 << CS10); // switch CTC Mode on, set prescaler to 1 #if defined (__AVR_ATmega8__) || defined (__AVR_ATmega16__) || defined (__AVR_ATmega32__) || defined (__AVR_ATmega64__) || defined (__AVR_ATmega162__) TIMSK = 1 << OCIE1A; // OCIE1A: Interrupt by timer compare (use TIMSK for ATMEGA162) #else TIMSK1 = 1 << OCIE1A; // OCIE1A: Interrupt by timer compare (use TIMSK for ATMEGA162) #endif // __AVR... } /*--------------------------------------------------------------------------------------------------------------------------------------------------- * timer 1 compare handler, called every 1/10000 sec *--------------------------------------------------------------------------------------------------------------------------------------------------- */ // Timer 1 output compare A interrupt service routine #ifdef CODEVISION interrupt [TIM1_COMPA] void timer1_compa_isr(void) #else // CODEVISION ISR(TIMER1_COMPA_vect) #endif // CODEVISION { (void) irsnd_ISR(); // call irsnd ISR // call other timer interrupt routines... } /*--------------------------------------------------------------------------------------------------------------------------------------------------- * MAIN: main routine *--------------------------------------------------------------------------------------------------------------------------------------------------- */ #ifdef CODEVISION // This is the main routine if you use Codevision C Compiler void main (void) { IRMP_DATA irmp_data; #pragma optsize- // crystal oscillator division factor: 1 CLKPR=0x80; CLKPR=0x00; #ifdef _OPTIMIZE_SIZE_ #pragma optsize+ #endif irsnd_init(); // initialize irsnd timer_init(); // initialize timer #asm("sei"); // enable interrupts for (;;) { irmp_data.protocol = IRMP_NEC_PROTOCOL; irmp_data.address = 0x00FF; irmp_data.command = 0x0001; irmp_data.flags = 0; irsnd_send_data (&irmp_data); _delay_ms (1000); } } #else // gcc // This is the main routine if you use GCC Compiler int main (void) { IRMP_DATA irmp_data; irsnd_init(); // initialize irsnd timer_init(); // initialize timer sei (); // enable interrupts for (;;) { irmp_data.protocol = IRMP_NEC_PROTOCOL; irmp_data.address = 0x00FF; irmp_data.command = 0x0001; irmp_data.flags = 0; irsnd_send_data (&irmp_data); _delay_ms (1000); } } #endif // CODEVISION / gcc