CP210x Programmer

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Library and command line program providing access to the EEPROM of an Silabs CP2101 / CP2102 / CP2103. It can programm the USB-Descriptors and the Baudrate table.

CP210x Programmer Web Site


  • Change VID, PID, vendor string, product string, serial number, baud rates
  • Lock the CP210x from further changes

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Intended Audience

Manufacturing, Developers, Engineering

User Interface


Programming Language



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