:::
Browsing this Thread:
1 Anonymous Users
|
Re: 關於Timer1
|
||||
|---|---|---|---|---|
|
管理員
 
|
在 timeini( ) 裡面 , 要加上 PEIE=1 ; 就可以啦 ! 參考 PIC16F877 data sheet 中的中斷架構圖 ( Figure 12-9 ), 就可以發現只有 TIMER0 , RB0 ( INT0 ) 及 PORTB Change 三個中斷不必打開 PEIE , 其他的都要喔 ! 
發表於: 2005/5/31 23:11
|
|||
|
||||
|
關於Timer1
|
||||
|---|---|---|---|---|
|
新會員
|
小弟使用Pic16F877上，試寫個有關於Timer1送出個pulse的程式，但不知那裏出錯，一直無法Work，請指正一下，謝謝^^
#include <pic.h> unsigned int i; int cnt; int j; void timeini() { #define TIMER_1 0x2710 #define TMR1RESET (0xFFFF-TIMER_1) #define TMR1RESET_HIGH TMR1RESET >> 8 #define TMR1RESET_LOW TMR1RESET & 0xFF TMR1CS=0; TMR1ON=0; TMR1H=TMR1RESET_HIGH; TMR1L=TMR1RESET_LOW; TMR1ON=1; TMR1IF=0; TMR1IE=1; GIE=1; } void initial() { TRISD = 0x00; RD0 = 0; } void delay() { for(i = 12; --i; ) continue; } main() { initial(); timeini(); while(1); } void interrupt timer1_isr(void) { TMR1IF=0; TMR1H=TMR1RESET_HIGH; TMR1L=TMR1RESET_LOW; cnt++; if(cnt==50) { RD0 = 1; delay(); RD0 = 0; delay(); cnt = 0; } }
發表於: 2005/5/26 9:45
|
|||
|
||||
You can view topic.
你 不可以 發起新主題
You cannot reply to posts.
You cannot edit your posts.
You cannot delete your posts.
You cannot add new polls.
You cannot vote in polls.
You cannot attach files to posts.
You cannot post without approval.
You cannot use topic type.
You cannot use HTML syntax.
You cannot use signature.
You cannot create PDF files.
You cannot get print page.
