irsndmain.c

   1 /*---------------------------------------------------------------------------------------------------------------------------------------------------
   2  * irsndmain.c - demo main module to test irmp decoder
   3  *
   4  * Copyright (c) 2010 Frank Meyer - frank(at)fli4l.de
   5  *
   6  * ATMEGA88 @ 8 MHz
   7  *
   8  * Fuses: lfuse: 0xE2 hfuse: 0xDC efuse: 0xF9
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License as published by
  12  * the Free Software Foundation; either version 2 of the License, or
  13  * (at your option) any later version.
  14  *---------------------------------------------------------------------------------------------------------------------------------------------------
  15  */
  16
  17 /*---------------------------------------------------------------------------------------------------------------------------------------------------
  18  * uncomment this for codevision compiler:
  19  *---------------------------------------------------------------------------------------------------------------------------------------------------
  20  */
  21 // #define CODEVISION                                                   // to use Codevision Compiler instead of gcc
  22
  23 #ifdef CODEVISION
  24 #include <mega88.h>
  25 #include <stdio.h>
  26 #define uint8_t     unsigned char
  27 #define uint16_t    unsigned int
  28 #define F_CPU       8000000            // change for Codevision here, if you use WinAVR, use Project -> Configuration Options instead
  29
  30 // register values from datasheet for ATMega88
  31 #define OCIE1A      1
  32 #define WGM12       3
  33 #define CS10        0
  34 #define UDRE0       5
  35 #define TXEN0       3
  36
  37 #include "irmp.h"
  38 #include "isnd.h"
  39 #include "irmp.c"
  40 #include "isnd.c"
  41
  42 #else // gcc compiler
  43
  44 #include <inttypes.h>
  45 #include <avr/io.h>
  46 #include <util/delay.h>
  47 #include <avr/pgmspace.h>
  48 #include <avr/interrupt.h>
  49 #include "irmp.h"
  50 #include "irsnd.h"
  51
  52 #endif  // CODEVISION
  53
  54 #ifndef F_CPU
  55 #error F_CPU unkown
  56 #endif
  57
  58 void
  59 timer_init (void)
  60 {
  61 #ifdef CODEVISION
  62   OCR1AH  = ((F_CPU / F_INTERRUPTS) >> 8) & 0xFF;                           // compare value: 1/10000 of CPU frequency (upper byte)
  63   OCR1AL  = ((F_CPU / F_INTERRUPTS) - 1)  & 0xFF;                           // compare value: 1/10000 of CPU frequency (lower byte)
  64 #else  // gcc
  65   OCR1A   =  (F_CPU / F_INTERRUPTS) - 1;                                    // compare value: 1/10000 of CPU frequency
  66 #endif  // CODEVISION
  67   TCCR1B  = (1 << WGM12) | (1 << CS10);                                     // switch CTC Mode on, set prescaler to 1
  68
  69 #if defined (__AVR_ATmega8__) || defined (__AVR_ATmega16__) || defined (__AVR_ATmega32__) || defined (__AVR_ATmega64__) || defined (__AVR_ATmega162__)
  70   TIMSK  = 1 << OCIE1A;                                                     // OCIE1A: Interrupt by timer compare (use TIMSK for ATMEGA162)
  71 #else
  72   TIMSK1  = 1 << OCIE1A;                                                    // OCIE1A: Interrupt by timer compare (use TIMSK for ATMEGA162)
  73 #endif  // __AVR...
  74 }
  75
  76 /*---------------------------------------------------------------------------------------------------------------------------------------------------
  77  * timer 1 compare handler, called every 1/10000 sec
  78  *---------------------------------------------------------------------------------------------------------------------------------------------------
  79  */
  80 // Timer 1 output compare A interrupt service routine
  81 #ifdef CODEVISION
  82 interrupt [TIM1_COMPA] void timer1_compa_isr(void)
  83 #else  // CODEVISION
  84 ISR(TIMER1_COMPA_vect)
  85 #endif  // CODEVISION
  86 {
  87     (void) irsnd_ISR();                                                     // call irsnd ISR
  88   // call other timer interrupt routines...
  89 }
  90
  91 /*---------------------------------------------------------------------------------------------------------------------------------------------------
  92  * MAIN: main routine
  93  *---------------------------------------------------------------------------------------------------------------------------------------------------
  94  */
  95 #ifdef CODEVISION
  96 // This is the main routine if you use Codevision C Compiler
  97 void
  98 main (void)
  99 {
 100   IRMP_DATA irmp_data;
 101
 102   #pragma optsize-
 103   // crystal oscillator division factor: 1
 104   CLKPR=0x80;
 105   CLKPR=0x00;
 106   #ifdef _OPTIMIZE_SIZE_
 107   #pragma optsize+
 108   #endif
 109
 110   irsnd_init();         // initialize irsnd
 111   timer_init();                                                             // initialize timer
 112   #asm("sei");                                                                // enable interrupts
 113
 114   for (;;)
 115   {
 116     irmp_data.protocol = IRMP_NEC_PROTOCOL;
 117     irmp_data.address = 0x00FF;
 118     irmp_data.command = 0x0001;
 119
 120     irsnd_send_data (&irmp_data);
 121     _delay_ms (1000);
 122   }
 123 }
 124
 125 #else  // gcc
 126
 127 // This is the main routine if you use GCC Compiler
 128 int
 129 main (void)
 130 {
 131   IRMP_DATA irmp_data;
 132
 133   irsnd_init();                                                             // initialize irsnd
 134   timer_init();                                                             // initialize timer
 135   sei ();                                                                   // enable interrupts
 136
 137   for (;;)
 138   {
 139     irmp_data.protocol = IRMP_NEC_PROTOCOL;
 140     irmp_data.address = 0x00FF;
 141     irmp_data.command = 0x0001;
 142
 143     irsnd_send_data (&irmp_data);
 144     _delay_ms (1000);
 145   }
 146 }
 147
 148 #endif  // CODEVISION / gcc