Co-existance of USB-Gadget and USB-JTAG?

DrMickeyLauer
Posts: 168
Joined: Sun May 22, 2022 2:42 pm

Co-existance of USB-Gadget and USB-JTAG?

Postby DrMickeyLauer » Wed May 17, 2023 10:25 am

I noticed there are several example programs for the ESP32S2 and the ESP32S3 where you can configure USB to act as a class-compliant serial/MIDI/keyboard etc. device. In such a scenario, are you then uploading new firmwares via USB-serial or is there a way for the endpoints to co-exist? I.e. have the JTAG/USB facility still intact while operating as a class-compliant USB device?

ESP_Sprite
Posts: 9745
Joined: Thu Nov 26, 2015 4:08 am

Re: Co-existance of USB-Gadget and USB-JTAG?

Postby ESP_Sprite » Thu May 18, 2023 9:31 am

No, sorry, it's either/or. The only way to have them work at the same time is to add an external USB transceiver so the ESP32 has two USB ports.

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