DFU Flashing - ESP32-S3-DevKitC

meltdown03
Posts: 6
Joined: Tue Oct 01, 2019 11:21 pm

DFU Flashing - ESP32-S3-DevKitC

Postby meltdown03 » Sun Feb 06, 2022 6:08 pm

I see that it's supported on Arduino, but with the IDF v5, I cannot figure out how to enable DFU flashing. Running dfu-util -l shows no supported devices no matter what I've tried. Can someone please tell me which menuconfig options I need to set? Or do I have to include some code to enable it? I tried looking at how Arduino is doing it, but I can't tell how it's really working.

ESP_Sprite
Posts: 9764
Joined: Thu Nov 26, 2015 4:08 am

Re: DFU Flashing - ESP32-S3-DevKitC

Postby ESP_Sprite » Mon Feb 07, 2022 1:23 am

Do you see the USB-serial-JTAG device the S3 has? If so, you actually need to burn a fuse to switch that over to use the USB-OTG peripheral instead on bootup.

meltdown03
Posts: 6
Joined: Tue Oct 01, 2019 11:21 pm

Re: DFU Flashing - ESP32-S3-DevKitC

Postby meltdown03 » Mon Feb 07, 2022 2:10 am

Oh, I thought there was a software method also. So I am guessing Arduino is using it in runtime so it only works after boot??

ESP_Sprite
Posts: 9764
Joined: Thu Nov 26, 2015 4:08 am

Re: DFU Flashing - ESP32-S3-DevKitC

Postby ESP_Sprite » Mon Feb 07, 2022 6:04 am

Yep.

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