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Re: 有關PIC16F873A輸出訊號
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版主
 
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這2V的電壓應該是從DAC0800流過來的，PORTB 出開機時內定為輸入腳位，將PORTB設為輸出後這個現象應該就消失了。
發表於: 2006/5/10 17:05
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有關PIC16F873A輸出訊號
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中級會員
 
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大家好 有一個問題想請教
我要作類比轉數位的輸出，數位訊號是利用PIC16F873A的PORTB給予，將PIC PORTB直接接上DAC0800相對應腳位時，兩顆都給予5V的驅動電壓，一打開電源時，PIC的PORTB就有 2V的電壓，想請教是否PIC有設定錯誤，謝謝
發表於: 2006/5/10 16:53
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