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PIC18F2550 USB Unknown Device

 
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Student
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PIC18F2550 USB Unknown Device
PostPosted: Wed May 31, 2006 4:44 pm     Reply with quote
When i use the CCS example ex_usb_serial.c on my pic and run the program, then windows pops up and says it is a unknown device attached to my USB bus.

Does anybody know what is wrong. I havent changed anything in the example.
rberek



Joined: 10 Jan 2005
Posts: 207
Location: Ottawa, Canada

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PostPosted: Wed May 31, 2006 5:20 pm     Reply with quote
Have you installed the CCS USB serial device driver?
drolleman
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PostPosted: Wed May 31, 2006 11:09 pm     Reply with quote
this message may have to do with the usb cap being the wrong type, or the osc freq wrong.
student
Guest
PostPosted: Thu Jun 01, 2006 12:03 am     Reply with quote
I tried the ccs cdc driver... but it doesnt work, because windows doesnt know my pic.
student
Guest
PostPosted: Thu Jun 01, 2006 1:34 am     Reply with quote
i found out... i was the plldiv there was incorrect

thanks for the help.
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