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Re: AD轉換的問題
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版主
 
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digital input mode 是高輸入阻抗，但如果是類比輸入電壓會造成較大的消耗電流並影響到類比的輸出阻抗。一般還是要設成 Analog input mode。如果設為digital output mode則無法量測AD
發表於: 2007/4/26 9:16
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AD轉換的問題
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新會員
 
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請各位高手幫幫我吧!我使用APP001的板子，PIC18F452的晶片。做雙通道AD時，我將ADCON1設為00000100，把AN4拿來當作analog。但後來發現，ADCON1已經將AN4設為digital，但為什麼還是能讓我們當做analog的輸入腳位呢???
發表於: 2007/4/24 19:48
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