please give me a solution

General discussions about V-USB, our firmware-only implementation of a low speed USB device on Atmel's AVR microcontrollers
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ahmad_faqeeh
Posts: 1
Joined: Thu Jun 05, 2008 4:53 pm

please give me a solution

Post by ahmad_faqeeh » Thu Jun 05, 2008 4:57 pm

After installing the prolific driver I downloaded from http://www.wiretek.com.cn/download.asp? ... ei=windows (named USB2.0 TO RS232 Converter), I plugged in the device and got the error USB Device Not Recognized (one of the USB devices attached to this computer has malfunctioned...)

I opened device manager and the device shows up as "Unknown Device" under the USB controller tab.

I got the same error on all three computers at my house (all running windows xp pro).
Has anyone else had the same error, or is my device defective? Help would be appreciated.

thnks

sonicss
Posts: 5
Joined: Tue Jun 10, 2008 5:15 pm

Post by sonicss » Thu Jun 12, 2008 10:56 am

If you know the type of the usb2uart chip. You'd better download the driver from the http://www.prolific.tw/eng/company.asp website.

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