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Re: 關於USB問題?
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資深會員
 
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  順利捉到了... 
發表於: 2006/6/12 19:29
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Re: 關於USB問題?
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版主
 
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我也曾經遇過此問題，USB Plug-in IBM ThinkPad 可以偵測的到，到有些USB就是偵測不到PIC18F4550，最後就是加個 0.47uF 電容就好了。
發表於: 2006/6/12 16:54
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Re: 關於USB問題?
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資深會員
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抱歉,自己找到原因,在VUSB忘了加電容,加上去後,PC就捉到了~
鬧笑話勒~
發表於: 2006/6/11 22:04
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關於USB問題?
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資深會員
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請問一個USB的問題:
1.PIC18F4550 2.OSC:20MHZ 3.CCS C COMPILER. 在設定SLOW SPEED之下,USB可以正常作動,但選擇FULL SPEED後,PC都無法辨識,請問是什麼問題? 謝謝. 設定如下:
//// FULL SPEED
摘另外一段
#if USB_USE_FULL_SPEED
發表於: 2006/6/10 15:33
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