irmp-main-stellaris-arm.c

   1 /*---------------------------------------------------------------------------------------------------------------------------------------------------
   2  * irmp-main-stellaris-arm.c - demo main module to test IRMP decoder on LM4F120 Launchpad (ARM Cortex M4)
   3  *
   4  * Copyright (c) 2009-2016 Frank Meyer - frank(at)fli4l.de
   5  *
   6  * $Id: irmp-main-stellaris-arm.c,v 1.1 2016/01/12 11:55:05 fm Exp $
   7  *
   8  * This demo module is runnable on LM4F120 Launchpad (ARM Cortex M4)
   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 #include "irmp.h"
  18
  19 #ifndef F_CPU
  20 #error F_CPU unknown
  21 #endif
  22
  23 void
  24 timer1_init (void)
  25 {
  26     SysCtlPeripheralEnable(SYSCTL_PERIPH_TIMER1);
  27     TimerConfigure(TIMER1_BASE, TIMER_CFG_32_BIT_PER);
  28
  29     TimerLoadSet(TIMER1_BASE, TIMER_A, (F_CPU / F_INTERRUPTS) -1);
  30     IntEnable(INT_TIMER1A);
  31     TimerIntEnable(TIMER1_BASE, TIMER_TIMA_TIMEOUT);
  32     TimerEnable(TIMER1_BASE, TIMER_A);
  33     // Important: Timer1IntHandler has to be configured in startup_ccs.c !
  34 }
  35
  36 void
  37 Timer1IntHandler(void)                                                      // Timer1 Interrupt Handler
  38 {
  39   (void) irmp_ISR();                                                        // call irmp ISR
  40   // call other timer interrupt routines...
  41 }
  42
  43 int
  44 main (void)
  45 {
  46     IRMP_DATA irmp_data;
  47
  48     ROM_FPUEnable();
  49     ROM_FPUStackingEnable();
  50     ROM_SysCtlClockSet(SYSCTL_SYSDIV_5|SYSCTL_USE_PLL|SYSCTL_XTAL_16MHZ|SYSCTL_OSC_MAIN);
  51
  52     irmp_init();                                                            // initialize irmp
  53     timer1_init();                                                          // initialize timer1
  54     sei ();                                                                 // enable interrupts
  55
  56     for (;;)
  57     {
  58         if (irmp_get_data (&irmp_data))
  59         {
  60             // ir signal decoded, do something here...
  61             // irmp_data.protocol is the protocol, see irmp.h
  62             // irmp_data.address is the address/manufacturer code of ir sender
  63             // irmp_data.command is the command code
  64             // irmp_protocol_names[irmp_data.protocol] is the protocol name (if enabled, see irmpconfig.h)
  65         }
  66     }
  67 }