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Re: PIC18 A/D convert 的請教
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版主
 
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你有用 ICD2 去 debugging 嗎? 看程式用猜的很辛苦。
AD 轉換的範例 在W401 的教材裡就有。
發表於: 2005/4/11 10:09
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PIC18 A/D convert 的請教
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新會員
 
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大家好,我是使用PIC18F452,目前利用RA0/AN0當作類比輸入,並將2次之轉換結果,進行比較,最後把比較結果顯示於LCD.
燒錄成功後,卻沒有任何顯示,請問是A/D程式有問題嗎?多謝賜教! Thanx~ 或是誰有更多有關A/D的參考程式,可否提供一下! ... char e1, e2; void main (void) { ... InitializeAD( ); ConvertADC(); while(BusyADC( )); e1=ADRESH; ... InitializeAD( ); ConvertADC(); while(BusyADC( )); e2=ADRESH; if(e1<e2) { OpenLCD( ); LCD_Set_Cursor(0,0); LCD_L_Delay() ; putsLCD('1'); LCD_L_Delay(); Delay10KTCYx(CPU_SPEED / 200000) ; } else { OpenLCD( ); LCD_Set_Cursor(0,0); LCD_L_Delay() ; putsLCD('0'); LCD_L_Delay(); Delay10KTCYx(CPU_SPEED / 200000) ; } } void InitializeAD(void) { OpenADC ( ADC_FOSC_8 & ADC_LEFT_JUST & ADC_1ANA_0REF, ADC_CH0 & ADC_INT_OFF ); }
發表於: 2005/4/11 3:22
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