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在18F1320 ADC 轉問疑問
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中級會員
 
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想要請教各位大大
我使用MCC18的COMPLIER來做ADC轉換 很奇怪電壓明明有出現 可是就是轉換不過去 以下是我的程式片斷 還請各位大大幫忙一下 看看有哪邊需要更改的 我使用的是內部的XTAL 沒有接外部的參考電壓 主程式 AD_SENSOR=GetADCValueFromArg(ADCSensor); //呼叫RA1輸入後的判斷程式 副程式 unsigned int GetADCValueFromArg(unsigned char Channel) { unsigned int AD_CHECK; OpenADC(ADC_FOSC_RC & ADC_RIGHT_JUST & ADC_2_TAD, Channel & ADC_INT_OFF ,0b11111000); while(ADCON0bits.GO);//判斷AD轉換是否結束 AD_CHECK=ReadADC();//將讀到值丟給AD_TEMP CloseADC(); return AD_CHECK; }
發表於: 2006/11/21 16:01
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