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Re: 你好，請問877的RA4當成一般io如何使用提昇電阻
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版主
 
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10K ohm 應該沒問題，大小是要看你所希望的Hi推動能力而定的，是否有將 TRISA,4 設為輸出模式？
發表於: 2006/5/8 17:52
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你好，請問877的RA4當成一般io如何使用提昇電阻
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新會員
 
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各位前輩大家好，我遇到一個問題，就是RA4若要當成輸出使用，需要接一個提昇電阻，請問多大較適合。接法是否接成 +VCC --10k-- RA4即可呢？下指令bsf PORTA,4都量不到電位，不知有那位大大可否告之如何解決？感激不盡。
發表於: 2006/5/8 17:46
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