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Re: 初學者的小問題
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新會員
 
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謝謝我試過成功了
感謝你的解答
發表於: 2006/8/15 10:31
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Re: 初學者的小問題
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版主
 
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因為PORTDㄧ開機就指定只跑一個燈(PORTD=0b00000001) 所以要跑兩個燈就要改PORTD的初始值，且中斷迴圈裡的 Long_Count 的判斷值也要改小。
發表於: 2006/8/14 16:32
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初學者的小問題
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新會員
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我剛碰這程式沒多久
請問各位前輩如果我要使下面這個練習一次跑2個燈 我應該如何宣告跟加寫程式 #include <p18f452.h> #include <timers.h> #include <delays.h> void isr_high(void); volatile unsigned char Long_Count ; volatile unsigned char Direct_LED ; volatile unsigned char Dir_Count ; void main(void) { TRISD=0x00; PORTD=0b00000001; RCONbits.IPEN=1; IPR1bits.TMR2IP=1; INTCONbits.GIEH=1; OpenTimer2 (TIMER_INT_ON & T2_PS_1_16 & T2_POST_1_5); PR2 = 199; Long_Count=0; Direct_LED=0; Dir_Count=0; while(1); } #pragma code isrhighcode = 0x0008 void isr_high_direct(void) { _asm goto isr_high _endasm } #pragma code #pragma interrupt isr_high void isr_high(void) { PIR1bits.TMR2IF=0; if (Long_Count <= 6) Long_Count++; else { Long_Count=0; if (Direct_LED==0x00) { PORTD<<=1; Dir_Count++;
發表於: 2006/8/14 15:27
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