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70 lines
1.3 KiB
70 lines
1.3 KiB
/*
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* File: main.c
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* Author: Sparky
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*
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* Created on ??????, 2013, ?????? 26, 11:06
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*/
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#include "config.h"
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//#include <stdio.h>
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//#include <stdlib.h>
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#include <xc.h>
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#include <GenericTypeDefs.h>
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#define _XTAL_FREQ 8000000
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#define TX GP1
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#define RX GP4
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#define SLEEPOUT GP5
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static UINT32_VAL pwd;
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/*
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*
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*/
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void main(void) {
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UINT32_VAL RXTX;
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UINT8 i;
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UINT8 inCnt;
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TRISA=0b00011001;
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PORTA=0b00100000;
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ANSEL=0;
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WPU=0;
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T2CON=0b00000100; //Timer 2 on
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PR2=52;//59; //40Khz
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CCP1CON=0b00001111; //PWM mode, P1A single output, P1A active low
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CCPR1L=24;//29; //50% duty
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pwd.v[0]='W';
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pwd.v[1]='a';
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pwd.v[2]='K';
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pwd.v[3]='e';
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inCnt=0;
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while(1){
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TX=0;
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RXTX.Val=pwd.Val;
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__delay_ms(6); //transmit leader
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for(i=0;i<32;i++){
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TX=0;
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__delay_us(600);
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TX=RXTX.bits.b0;
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RXTX.Val>>=1;
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__delay_us(600);
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RXTX.bits.b31=RX;
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}
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TX=1;
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__delay_ms(100);
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if(RXTX.Val==pwd.Val){
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SLEEPOUT=1;
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inCnt=0;
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}
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else
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{
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if(inCnt<255)inCnt++;
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if(inCnt>7){
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SLEEPOUT=0;
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}
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}
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}
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}
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