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Re: 為什麼中斷跳不出來?
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版主
 
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你在中斷裡設PWM的Duty=1000, 要是你在主程式沒有更動 duty cycle 永遠會一直輸出 1000的duty cycle。
程式應該有離開中斷服務程式，再檢查看看吧!
發表於: 2005/2/21 21:20
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為什麼中斷跳不出來?
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高級會員
 
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請問各位:我利用timer2做pwm輸出,主程式一開始輸出 SetDCPWM1(500);利用RB0做外部中斷輸出SetDCPWM1(1000),但中斷結束後卻回不到主程式,持續輸出SetDCPWM1(1000),以下是我的中斷程式:
#pragma interrupt isr_high void isr_high(void) { if ( INTCONbits.INT0IF == 1 ) { SetDCPWM1(1000); INTCONbits.INT0IF = 0; } } #pragma code 麻煩幫忙解答....苦惱中
發表於: 2005/2/19 1:16
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