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Re: 請教關於pic 16f877 capture
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版主
 
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請參考PIC16F877 Data Sheet Page:155 ，CCP1 & CCP2 都是屬於 Schimitt Trigger Input 所以 Vol 為 0.2Vdd, Vih 為 0.8Vdd
發表於: 2006/11/23 11:30
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請教關於pic 16f877 capture
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初級會員
 
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請問各位前輩:
pic裡面使用capture功能時,他正緣觸發或是負緣觸發 是當他訊號大於幾V時,他才認定是HIGH? 或是幾V以下,他當成是LOW? 因為小弟使用PIC配合多工器去擷取多個,PWM輸入 HIGH的時間,一直都有問題,所以有點懷疑是不是因為準 位的認定問題
發表於: 2006/11/22 22:14
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