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Re: Questions for comparator module?
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中級會員
 
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A/D應該要設成Digital I/O~~~
RA5應該就可以看出有High Low變化~~~ 另外RA4為Open Drain~~~ 所以必須要Pull High~~~
發表於: 2005/12/14 11:55
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Re: Questions for comparator module?
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新會員
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你好:
我們是用PIC 18F4520去試的 A/D channel 有設定為analog 用ICD2去看的時候,如前所述動作均正常 就是看不到輸出有high low的變化 不曉得這樣子清楚嗎?
發表於: 2005/12/14 11:26
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Re: Questions for comparator module?
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新會員
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請說明:
1. 是用那一型MCU? 2. 有無clear A/D channel?
發表於: 2005/12/13 15:58
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Re: Questions for comparator module?
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新會員
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請說明:
1. 是用那一型MCU? 2. 有無clear A/D channel?
發表於: 2005/12/13 15:57
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Questions for comparator module?
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新會員
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大家好;
我們今天寫比較器的功能時,程式寫法如下: TRISA=0xCF CMCON=0x02 用C2OUT與C1OUT看訊號時(using ICD2 Debugger) 當V+大於V-時,C2OUT與C1OUT的訊號均為1 為什麼RA4與RA5無法輸出方波訊號 請問有何暫存器無設定到呢???? V+為2V SIG SIGNAL V-為2V DC 謝謝 大家！ 
發表於: 2005/12/8 18:31
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