1、頁(yè)眉內(nèi)容PIC12F508 單片機(jī)學(xué)習(xí)之一 一一定時(shí)器PIC12F508 單片機(jī)是沒(méi)有中斷的，定時(shí)器只能是查詢方式。編譯器用的 XC8，編譯環(huán)境 IDE 用的是 MPLAB X IDE */ _/VDD-| 18 |-VSS/GP5-| 227 |-GP0/DAT/GP4-| 326 I-GP1/CLKGP3/RMCLR-| 425 |-GP2/ |_ |/12F508/*/定時(shí)器模式試用#include#include/ #pragma config statements should precede project file includes./ Use project enums ins

2、tead 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

3、Select bit (GP3/MCLR pin function is digitalinput, MCLR internally tied to VDD)#define uchar unsigned char#define uint unsigned intuchar count;/uchar GP3_F;void Init()TRIS=0 x3F; /GP3 輸入，其它輸出OPTION=0 xC5;分頻器給定時(shí)器 64 4MHz x=257-tJ/4FTMR0=0 x63;/10ms x=257-tJ/4F void main()/*頁(yè)眉內(nèi)容lnit();while(1)if(TMRO=

4、OxFF)TMR0=0 x63;/if(+count=50)/1s Icount=0;GP2=GP2;/LED 閃爍PIC12F508 單片機(jī)學(xué)習(xí)之二一一看門(mén)狗和休眠模式試用PIC12F508 單片機(jī)是沒(méi)有中斷的，復(fù)位情況只能是查詢方式。編譯器用的 XC8，編譯環(huán)境 IDE 用的是 MPLAB X IDE。 下載器是 PICKIT3.*/ _/ VDD-| 18 |-VSS/GP5-| 227 |-GP0/DAT/GP4-| 326 |-GP1/CLK/GP3/RMCLR-I 425 |-GP2/I_ I/12F508/*/看門(mén)狗和休眠模式試用#include#include/ #pragma

5、 config statements should precede project file includes./ Use project enums instead of #define for ON and OFF ./ Oscillator Selection bits (internal RC oscillator)/ Watchdog Timer Enable bit (WDT Enable )#pragma config CP = OFF/ Code Protection bit (Code protection off)/*/ CONFIG#pragma config OSC =

6、 IntRC#pragma config WDT = ON頁(yè)眉內(nèi)容#pragma config MCLRE = OFF/ GP3/MCLR Pin Function Select bit (GP3/MCLR pin function is digitalinput, MCLR internally tied to VDD)#define uchar unsigned char#define uint unsigned int |uchar count;/uchar GP3_F;void Init()TRIS=0 x3F; /GP3 輸入，其它輸出OPTION=OxCE;/定時(shí)器分配看門(mén)狗時(shí)間是

7、 18Ms*64=1.152S void main()Init();while(1)if(nTO=0) /看門(mén)狗引起的復(fù)位GP2=GP2;SLEEP();PIC12F508 單片機(jī)學(xué)習(xí)之三一一按鍵喚醒PIC12F508 單片機(jī)是沒(méi)有中斷的，按鍵中斷只能是查詢方式。編譯器用的 XC8，編譯環(huán)境 IDE 用的是 MPLAB X IDE。下載器是 PICKIT3./*/ _/ VDD-| 18 |-VSS/GP5-| 227 |-GP0/DAT/GP4-| 326 |-GP1/CLK/GP3/RMCLR-I 425 |-GP2頁(yè)眉內(nèi)容/ |_/12F508*/看門(mén)狗休眠喚醒/按鍵喚醒#include

8、#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 = OF

9、F/ Code Protection bit (Code protection off)#pragma config MCLRE = OFF/ GP3/MCLR Pin Function Select bit (GP3/MCLR pin function is digitalinput, MCLR internally tied to VDD)#define uchar unsigned char#define uint unsigned int#define LED1 GP5#define LED2 GP4#define KEY GP3bit KEY_F;uchar count;/uchar GP3_F;void Init()TRIS=0 x3F; /GP3 輸入，其它輸出/ OPTION=0 x07; /這個(gè)寄存器上電復(fù)位均為1/ OPTION=nGPWU|nGPPU|PSA|PS1|PS2; /引腳中斷喚醒禁止弱上拉禁止定時(shí)器分配看門(mén)狗時(shí)間是18Ms*64=1.152SOPTION=0 x1E; / 引腳中斷喚醒