ESP32 - EVB programming with FTDI Module

Started by campestring, December 23, 2020, 05:49:16 pm

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campestring

Hello everyone I am trying to program my esp32-evb using esp-idf and ftdi module. but It doesn't work for now...
esptool.py v2.9-dev
Serial port COM8
Connecting........_____....._____....._____....._____....._____....._____....._____

A fatal error occurred: Failed to connect to Espressif device: Timed out waiting for packet header

Thank you !

LubOlimex

What does it mean FTDI module? ESP32-EVB doesn't have FTDI.
Technical support and documentation manager at Olimex

campestring

I have basic external FTDI which I plug to the uart0 !

LubOlimex

But why? ESP32-EVB already has a USB-serial converter on-board. Why not just use USB cable to connect ESP32-EVB to your computer and program it?
Technical support and documentation manager at Olimex

campestring

It's to ensure it's will work because I want to make a custom board !

LubOlimex

Ok, but there is already USB-serial converter attached to UART0 RX and TX... You will need to disconnect it if you wish to use UART0 exactly... Search for "USB to UART CAN" part at the bottom left part of the schematic here:

https://github.com/OLIMEX/ESP32-EVB/raw/master/HARDWARE/REV-F/ESP32-EVB_Rev_F.pdf
Technical support and documentation manager at Olimex