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Programming from uUSB - gen4-PA - GEN4-ULCD-50DCT

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  • Eran
    Hi Clement,

    Welcome to the Forum!

    Yes, the Reset pin is used for both programming and Hardware Reset.

    You may read this thread to know how to convert DTR into reset

    More information can be found here:

    Hope this helps and Best Regards,

    Leave a comment:

  • Clement44
    started a topic Programming from uUSB - gen4-PA - GEN4-ULCD-50DCT

    Programming from uUSB - gen4-PA - GEN4-ULCD-50DCT


    We're using the GEN4-ULCD-50DCT-CLB-SB. For prototyping, we program the display through the programming board gen4-PA via microUSB interface.

    We would like to integrate this feature (USB programming from PC) on a custom board.

    I saw on your gen4-PA schematic that you use the DTR pin of the CP2104 to create a RESET.
    I don't really understand if RESET pin is used for programming or only for a hardware reset ?

    I want to use an FTDI chip "FT230X", but this device don't support the "DTR" function.
    Will it work ?

    Thanks for your help,
    Best regards.