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 "irsndconfig.h"
  51 #include "irsnd.h"
  52
  53 #endif  // CODEVISION
  54
  55 #ifndef F_CPU
  56 #error F_CPU unkown
  57 #endif
  58
  59 void
  60 timer_init (void)
  61 {
  62 #ifdef CODEVISION
  63   OCR1AH  = ((F_CPU / F_INTERRUPTS) >> 8) & 0xFF;                           // compare value: 1/10000 of CPU frequency (upper byte)
  64   OCR1AL  = ((F_CPU / F_INTERRUPTS) - 1)  & 0xFF;                           // compare value: 1/10000 of CPU frequency (lower byte)
  65 #else  // gcc
  66   OCR1A   =  (F_CPU / F_INTERRUPTS) - 1;                                    // compare value: 1/10000 of CPU frequency
  67 #endif  // CODEVISION
  68   TCCR1B  = (1 << WGM12) | (1 << CS10);                                     // switch CTC Mode on, set prescaler to 1
  69
  70 #if defined (__AVR_ATmega8__) || defined (__AVR_ATmega16__) || defined (__AVR_ATmega32__) || defined (__AVR_ATmega64__) || defined (__AVR_ATmega162__)
  71   TIMSK  = 1 << OCIE1A;                                                     // OCIE1A: Interrupt by timer compare (use TIMSK for ATMEGA162)
  72 #else
  73   TIMSK1  = 1 << OCIE1A;                                                    // OCIE1A: Interrupt by timer compare (use TIMSK for ATMEGA162)
  74 #endif  // __AVR...
  75 }
  76
  77 /*---------------------------------------------------------------------------------------------------------------------------------------------------
  78  * timer 1 compare handler, called every 1/10000 sec
  79  *---------------------------------------------------------------------------------------------------------------------------------------------------
  80  */
  81 // Timer 1 output compare A interrupt service routine
  82 #ifdef CODEVISION
  83 interrupt [TIM1_COMPA] void timer1_compa_isr(void)
  84 #else  // CODEVISION
  85 ISR(TIMER1_COMPA_vect)
  86 #endif  // CODEVISION
  87 {
  88     (void) irsnd_ISR();                                                     // call irsnd ISR
  89   // call other timer interrupt routines...
  90 }
  91
  92 /*---------------------------------------------------------------------------------------------------------------------------------------------------
  93  * MAIN: main routine
  94  *---------------------------------------------------------------------------------------------------------------------------------------------------
  95  */
  96 #ifdef CODEVISION
  97 // This is the main routine if you use Codevision C Compiler
  98 void
  99 main (void)
 100 {
 101   IRMP_DATA irmp_data;
 102
 103   #pragma optsize-
 104   // crystal oscillator division factor: 1
 105   CLKPR=0x80;
 106   CLKPR=0x00;
 107   #ifdef _OPTIMIZE_SIZE_
 108   #pragma optsize+
 109   #endif
 110
 111   irsnd_init();         // initialize irsnd
 112   timer_init();                                                             // initialize timer
 113   #asm("sei");                                                                // enable interrupts
 114
 115   for (;;)
 116   {
 117     irmp_data.protocol = IRMP_NEC_PROTOCOL;
 118     irmp_data.address  = 0x00FF;
 119     irmp_data.command  = 0x0001;
 120     irmp_data.flags    = 0;
 121
 122     irsnd_send_data (&irmp_data);
 123     _delay_ms (1000);
 124   }
 125 }
 126
 127 #else  // gcc
 128
 129 // This is the main routine if you use GCC Compiler
 130 int
 131 main (void)
 132 {
 133   IRMP_DATA irmp_data;
 134
 135   irsnd_init();                                                             // initialize irsnd
 136   timer_init();                                                             // initialize timer
 137   sei ();                                                                   // enable interrupts
 138
 139   for (;;)
 140   {
 141     irmp_data.protocol = IRMP_NEC_PROTOCOL;
 142     irmp_data.address  = 0x00FF;
 143     irmp_data.command  = 0x0001;
 144     irmp_data.flags    = 0;
 145
 146     irsnd_send_data (&irmp_data, TRUE);
 147     _delay_ms (1000);
 148   }
 149 }
 150
 151 #endif  // CODEVISION / gcc