irmp-main-mbed.cpp

   1 /*---------------------------------------------------------------------------------------------------------------------------------------------------
   2  * irmp-main-mbed.cpp - demo main module to test IRMP decoder on AVR
   3  *
   4  * $Id: irmp-main-mbed.cpp,v 1.1 2016/01/12 11:55:05 fm Exp $
   5  *
   6  * This demo module is runnable on MBED boards
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation; either version 2 of the License, or
  11  * (at your option) any later version.
  12  *---------------------------------------------------------------------------------------------------------------------------------------------------
  13  */
  14
  15 #include "mbed.h"
  16 #include "irmp.h"
  17
  18 #define LED_ON  0
  19 #define LED_OFF 1
  20
  21 DigitalOut led(P0_14, 1);
  22 DigitalOut flash(P0_12, 1);
  23
  24 Ticker t;
  25
  26 // only for performance test
  27 Timer   timerPerfTest;
  28 int     timeISRMax = 0;
  29 float   timeISRAvg;
  30 int     timeISRAvgSum = 0;
  31 int     countISRCalls = 0;
  32
  33 void irmpISR(void)
  34 {
  35     int t1 = timerPerfTest.read_us();
  36
  37     irmp_ISR();                                                             // call irmp ISR
  38
  39     int timeISR = timerPerfTest.read_us() - t1;                             // calc time spent in worker ISR
  40     if (timeISR > timeISRMax)                                               // store maximum
  41     {
  42         timeISRMax = timeISR;
  43     }
  44     timeISRAvgSum += timeISR;                                               // sum for avg
  45     countISRCalls++;
  46 }
  47
  48 int main()
  49 {
  50     printf("IRMP on mbed\n");
  51
  52     led = LED_OFF;
  53     timerPerfTest.start();
  54
  55     IRMP_DATA irmp_data;
  56
  57     irmp_init();                                                            // initialize irmp
  58     t.attach_us(&irmpISR, 1E6 / F_INTERRUPTS);                              // call ISR 15000/s
  59
  60     // infinite loop, interrupts will toggle PORTD pins and handle UART communications.
  61     while (1)
  62     {
  63         flash = !flash;
  64
  65         if (irmp_get_data (&irmp_data))
  66         {
  67             // ir signal decoded, do something here...
  68             // irmp_data.protocol is the protocol, see irmp.h
  69             // irmp_data.address is the address/manufacturer code of ir sender
  70             // irmp_data.command is the command code
  71             // irm_data.flags is press/release information
  72             // irmp_protocol_names[irmp_data.protocol] is the protocol name (if enabled, see irmpconfig.h)
  73             // printf("proto %d addr %d cmd %d\n", irmp_data.protocol, irmp_data.address, irmp_data.command );
  74
  75             // sample decoding, toggle LED
  76             if (irmp_data.protocol == IRMP_RC5_PROTOCOL && irmp_data.address == 5)          // old RC5 VCR Remote. TV uses address 0
  77             {
  78                 if (irmp_data.flags == 0)                                   // switch only on button press
  79                 {
  80                     switch (irmp_data.command)
  81                     {
  82                         case 0:                                             // Key '0'
  83                             led = LED_OFF;
  84                             break;
  85                         case 1:                                             // Key '1'
  86                             led = LED_ON;
  87                             break;
  88                         case 53:                                            // Key 'play'
  89                             printf("bring me a beer!\n");
  90                             break;
  91                         case 54:                                            // Key 'stop'
  92                             timeISRAvg = (float)timeISRAvgSum / countISRCalls;
  93                             timeISRAvgSum = 0;
  94                             countISRCalls = 0;
  95                             printf("ISR max / avg runtime [microseconds] : %d / %5.2f\n", timeISRMax, timeISRAvg);
  96                             timeISRMax = 0;
  97                             break;
  98                     }
  99                 }
 100             }
 101
 102             // log to stdout
 103             printf("proto %d addr %d cmd %d flags %x name %s\n", irmp_data.protocol, irmp_data.address, irmp_data.command, irmp_data.flags, irmp_protocol_names[irmp_data.protocol] );
 104         }
 105     }
 106 }