esptool does not upload code over serial with FTDI USB board

chgerwig
Posts: 1
Joined: Wed Aug 17, 2022 8:35 am

esptool does not upload code over serial with FTDI USB board

Postby chgerwig » Thu Aug 18, 2022 11:06 am

I have a custom board (see picture attached) with an ESP32-S and want to upload code over the serial but I always get the error that the board did not answer.
I can see the TX LED blinking but not the RX. I pulled the GPIO0 and GPIO2 to ground as it is adviced to enter download mode.
The normal serial communication is working.
Any ideas what can be the problem here?
br, Chris
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