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Need help on usb firmware(urgent!!!!)

I have a project to implement the USB serial interface engine and the USB endpoints in software.
   The code must be written for AT89c51.

   Anyone having a solution.(oR a related link)

   PLZ reply urgently

   Urgently need help

   
0
2000E76
Asked:
2000E76
1 Solution
 
DiplomatCommented:
These sites has many USB examples in C, Visual Basic, and Assembly.

http://www.usb-by-example.com/

http://www.lvr.com/usb.htm

http://www.devasys.com/

USB is a quite complicated Bus. Even experienced engineers who were not familiar with USB will take many months in order to master that Bus.
If you are new to USB, I would recommend books such as 'USB Design by Example' by John Hyde and 'USB Complete' by Jan Axelson.
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2000E76:
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