PIC12F508单片机学习l例程.doc

PIC12F508单片机学习之一定时器PIC12F508单片机是没有中断的，定时器只能是查询方式。编译器用的XC8，编译环境IDE用的是MPLAB X IDE。/*/ _/ VDD-| 1 8 |-VSS/ GP5-| 2 27 |-GP0/DAT/ GP4-| 3 26 |-GP1/CLK/GP3/RMCLR-| 4 25 |-GP2/ |_|/ 12F508/*/定时器模式试用#include#include/ #pragma config statements should precede project file includes./ Use project enums instead of #define for ON and OFF./ CONFIG#pragma config OSC = IntRC / Oscillator Selection bits (internal RC oscillator)#pragma config WDT = OFF / Watchdog Timer Enable bit (WDT disabled)#pragma config CP = OFF / Code Protection bit (Code protection off)#pragma config MCLRE = OFF / GP3/MCLR Pin Function Select bit (GP3/MCLR pin function is digital input, MCLR internally tied to VDD)#define uchar unsigned char#define uint unsigned intucharcount;/ucharGP3_F;void Init() TRIS=0x3F;/GP3输入，其它输出 OPTION=0xC5;/分频器给定时器 64 4MHz x=257-tJ/4F TMR0=0x63; /10ms x=257-tJ/4Fvoidmain()Init();while(1) if(TMR0=0xFF) TMR0=0x63; / if(+count=50)/1s count=0; GP2=GP2;/LED闪烁 PIC12F508单片机学习之二看门狗和休眠模式试用PIC12F508单片机是没有中断的，复位情况只能是查询方式。编译器用的XC8，编译环境IDE用的是MPLAB X IDE。下载器是PICKIT3./*/ _/ VDD-| 1 8 |-VSS/ GP5-| 2 27 |-GP0/DAT/ GP4-| 3 26 |-GP1/CLK/GP3/RMCLR-| 4 25 |-GP2/ |_|/ 12F508/*/ 看门狗和休眠模式试用#include#include/ #pragma config statements should precede project file includes./ Use project enums instead of #define for ON and OFF./ CONFIG#pragma config OSC = IntRC / Oscillator Selection bits (internal RC oscillator)#pragma config WDT = ON / Watchdog Timer Enable bit (WDT Enable )#pragma config CP = OFF / Code Protection bit (Code protection off)#pragma config MCLRE = OFF / GP3/MCLR Pin Function Select bit (GP3/MCLR pin function is digital input, MCLR internally tied to VDD)#define uchar unsigned char#define uint unsigned intucharcount;/ucharGP3_F;void Init() TRIS=0x3F;/GP3输入，其它输出 OPTION=0xCE; /定时器分配看门狗 时间是18Ms*64=1.152Svoidmain()Init(); while(1) if(nTO=0) /看门狗引起的复位 GP2=GP2; SLEEP(); PIC12F508单片机学习之三按键唤醒PIC12F508单片机是没有中断的，按键中断只能是查询方式。编译器用的XC8，编译环境IDE用的是MPLAB X IDE。下载器是PICKIT3./*/ _/ VDD-| 1 8 |-VSS/ GP5-| 2 27 |-GP0/DAT/ GP4-| 3 26 |-GP1/CLK/GP3/RMCLR-| 4 25 |-GP2/ |_|/ 12F508/*/看门狗 休眠唤醒/按键唤醒#include#include/ #pragma config statements should precede project file includes./ Use project enums instead of #define for ON and OFF./ CONFIG#pragma config OSC = IntRC / Oscillator Selection bits (internal RC oscillator)#pragma config WDT = ON / Watchdog Timer Enable bit (WDT Enable )#pragma config CP = OFF / Code Protection bit (Code protection off)#pragma config MCLRE = OFF / GP3/MCLR Pin Function Select bit (GP3/MCLR pin function is digital input, MCLR internally tied to VDD)#define uchar unsigned char#define uint unsigned int#define LED1 GP5#define LED2 GP4#define KEYGP3bit KEY_F;ucharcount;/ucharGP3_F;void Init() TRIS=0x3F;/GP3输入，其它输出 / OPTION=0x07; /这个寄存器上电复位均为1 /OPTION=nGPWU|nGPPU|PSA|PS1|PS2; /引脚中断唤醒禁止 弱上拉禁止定时器分配看门狗时间是18Ms*64=1.152S OPTION=0x1E; / 引脚中断唤醒使能 弱上拉使能定时器分配看门狗时间是18Ms*64=1.152S