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/*---------------------------------------------------------------------------------------------------------------------------------------------------
* main_pic.c - example main module
*
* IR decoder using IRMP
*
* (c) 2014 Wolfgang Strobl (ws at mystrobl.de) 2014-03-12:2014-07-05
*
* This demo module is runnable on a Microchip PIC 12F1840
*
* To be used with IRMP by Frank Meyer (frank(at)fli4l.de)
* <http://www.mikrocontroller.net/articles/IRMP>
*
* 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.
*---------------------------------------------------------------------------------------------------------------------------------------------------
*/
/*
PIC12F1840
___ __
10k -|___|-+ Vdd -o| o|o- Vss
___ +-RS232in / GP5 -o| |o- GP0 / ICSPDAT
1k -|___|-- RS232out/ GP4 -o| |o- GP1 / ICSPCLK
Vpp / GP3 -o|__|o- GP2 / TS TSOP1736
Example output, using a bunch of different remote controls
IRMP PIC 12F1840 1.1 ws
P 7 a=0x0011 c=0x000c f=0x00 (RC5)
P 6 a=0x0001 c=0x0018 f=0x00 (RECS80)
P 2 a=0xbf00 c=0x0019 f=0x00 (NEC)
P 2 a=0xeb14 c=0x0001 f=0x00 (NEC)
P 7 a=0x001c c=0x0005 f=0x00 (RC5)
P 7 a=0x000a c=0x0057 f=0x00 (RC5)
P 7 a=0x000a c=0x0057 f=0x01 (RC5)
P 2 a=0xfb04 c=0x0008 f=0x00 (NEC)
*/
#include <stdio.h>
#include "irmp.h"
/******************************************************************************/
// "system.h"
/******************************************************************************/
#define SYS_FREQ 32000000L
#define _XTAL_FREQ 32000000 // for _delay
#define FCY (SYS_FREQ/4)
/******************************************************************************/
// "user.c"
/******************************************************************************/
void InitApp(void)
{
ANSELA=0;
TRISA4=0;
IRCF0=0; // p. 45
IRCF1=1;
IRCF2=1;
IRCF3=1;
SPLLEN=1; // p 46 and 54
}
/******************************************************************************/
// "configuration_bits.c" 12F1848
/******************************************************************************/
// CONFIG1
#pragma config FOSC = INTOSC // Oscillator Selection (INTOSC oscillator: I/O function on CLKIN pin)
#pragma config WDTE = OFF // Watchdog Timer Enable (WDT disabled)
#pragma config PWRTE = ON // Power-up Timer Enable (PWRT enabled)
#pragma config MCLRE = OFF // MCLR Pin Function Select (MCLR/VPP pin function is digital input)
#pragma config CP = OFF // Flash Program Memory Code Protection (Program memory code protection is disabled)
#pragma config CPD = OFF // Data Memory Code Protection (Data memory code protection is disabled)
#pragma config BOREN = ON // Brown-out Reset Enable (Brown-out Reset enabled)
#pragma config CLKOUTEN = OFF // Clock Out Enable (CLKOUT function is disabled. I/O or oscillator function on the CLKOUT pin)
#pragma config IESO = OFF // Internal/External Switchover (Internal/External Switchover mode is disabled)
#pragma config FCMEN = OFF // Fail-Safe Clock Monitor Enable (Fail-Safe Clock Monitor is disabled)
// CONFIG2
#pragma config WRT = OFF // Flash Memory Self-Write Protection (Write protection off)
#pragma config PLLEN = OFF // PLL Enable (4x PLL disabled)
#pragma config STVREN = ON // Stack Overflow/Underflow Reset Enable (Stack Overflow or Underflow will cause a Reset)
#pragma config BORV = LO // Brown-out Reset Voltage Selection (Brown-out Reset Voltage (Vbor), low trip point selected.)
#pragma config LVP = OFF // Low-Voltage Programming Enable (High-voltage on MCLR/VPP must be used for programming)
/******************************************************************************/
/******************************************************************************/
// UART
/******************************************************************************/
// This demo module uses RS232 TX via EUSART, only
#define useEUSART 1
#define BAUD 19200
void
RS232init(void)
{
// Transmit
TXCKSEL = 1; // put TX on pin 4 - not 0 -, p 102
SPBRGL = (_XTAL_FREQ/BAUD/64-1);
SPBRGH = 0;
BRGH = 0;
BRG16 = 0;
// p 259 manual
SYNC = 0; // 0 p. 267
SPEN = 1; // 26.1.1.7
SCKP = 1; // invert p 269
TXEN = 1;
}
// EUSART transmit
void
putch(char c)
{
while (!TRMT) _delay(1);
TXREG=c;
}
/******************************************************************************/
// Timer and ISR
/******************************************************************************/
void
timer1_init(void)
{
// p 154
TMR1=0xFC00; // p. 155 wait 1024 cycles for stabilization.
TMR1CS1=0; // Clock source == System Clock
TMR1CS0=1;
TMR1IE=1; // enable TMR1 interrupts
PEIE=1; // enable Pheripheral Interrupts
}
/******************************************************************************/
// Interrupt handler
/******************************************************************************/
void interrupt isr(void)
{
irmp_ISR();
TMR1=0xffff-_XTAL_FREQ/F_INTERRUPTS;
TMR1IF=0; // clear timer 1 interrupt
}
/******************************************************************************/
// MAIN
/******************************************************************************/
int
main (void)
{
IRMP_DATA irmp_data;
InitApp(); // später inlinen
#if useEUSART
RS232init();
#endif
__delay_ms(200);
printf("IRMP PIC 12F1840 1.1 ws\r\n");
irmp_init(); // initialize irmp
timer1_init(); // initialize timer1
ei(); // enable interrupts
TMR1ON=1; // start timer
for (;;)
{
if (irmp_get_data (&irmp_data))
{
printf("P ");
printf("%d a=0x%04x c=0x%04x f=0x%02x (",irmp_data.protocol, irmp_data.address,irmp_data.command,irmp_data.flags);
#if IRMP_PROTOCOL_NAMES
printf(irmp_protocol_names[irmp_data.protocol]);
#else
switch(irmp_data.protocol)
{
case 1:
printf("Sony");
break;
case 2:
printf("NEC");
break;
case 7:
printf("RC5");
break;
case 0x21:
printf("Ortek");
break;
}
#endif
printf(")\r\n");
}
}
}
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