This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

TM4C123GH6ZRB: USB UART bridge

Part Number: TM4C123GH6ZRB

Recently, I have bought a TM4C123GXL LaunchPad.

I realized that there are no CP210x which makes a bridge between USB and UART on the board.

Then, I assume that TI made software bridge between USB and UART in their firmware.

I want to develop the same function as TI did on my Tiva TM4C123GXL.

Could you share an example or information?

  • Hi,

      Are you talking about the ICDI debug probe on the LaunchPad? The USB to UART bridging is handled by the ICDI. If you look at the board, the MCU that is closest to the USB debug port is the ICDI. However, the ICDI firmware source code is a TI propriety IP that is not distributed to the public. 

      The TM4C123 MCU has the USB module on it. You can certainly create a USB to UART bridge using the USB CDC class library provided by the TivaWare. The example can be found in <TivaWare_Installaton>/examples/boards/ek-tm4c123gxl/usb_dev_serial.