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Re: icd2燒錄問題
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發表於: 2006/5/25 15:22
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icd2燒錄問題
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根據icd2的使用手冊,燒錄MCU時,MCLR不能接電容到地,PGC、PGD不能接電組到VCC,問題來了。

1.MCLR是做reset的功能,所以會接電阻至Vcc接電容至地,若不能接電容,是不是每次燒錄時都要將電容拔起再燒,那不是太麻煩了嗎?目前我都沒將電容拔起直接燒,好像也沒什麼問題,請問到底需不須拔。

2.PGC、PGD有時接腳不夠會拿來做IO,大多是input,因為是input的關係,所以會接一個電阻至VCC,燒錄時也須將電組拔開嗎?我沒拔開燒錄也ok,到底需不需拔?還是接阻值多少時就沒問題,請賜教

發表於: 2006/5/25 9:37
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