ESP8266 Using DTR/RTS to control bootloader and reset

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  • March 3, 2016 at 15:37 #7712
    saspland
    Participant

    Hi,

    I’m trying to use VisualGDB to debug an ESP8266 ESP-12 module.

    Using the ‘normal’ connection scheme…

    Serial    ESP
RX        TX
TX        RX
RTS       Reset
DTR       GPIO0

    The firmware upload works fine, VisualGDB resets the device with DTR low, and uploads correctly.

    However once the upload is complete, RTS and DTR go low and stays there.  So to run the device I have to disconnect RTS and DTR and connect GPIO to VCC before VisualGDB can connect to debug it.

    Is it possible to change this so when you start debugging the device is reset (RTS low then high) with DTR high?

    There is a Saleae logic analyser capture of the upload and subsequent attempts by visualgdb to debug the device here…

    Thanks,

    Simon.

     

     

     

     

     

     

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