Burning Fuses BLOCK3 via JTAG

olegboicenco
Posts: 10
Joined: Sun Jul 26, 2020 2:48 pm

Burning Fuses BLOCK3 via JTAG

Postby olegboicenco » Fri Mar 05, 2021 3:07 pm

Hi all!
Is it any possibility/mechanism to burn ESP32 EFUSE_BLK3 using OpenOCD+JTAG?


Thanks in advance!
Oleg

olegboicenco
Posts: 10
Joined: Sun Jul 26, 2020 2:48 pm

Re: Burning Fuses BLOCK3 via JTAG

Postby olegboicenco » Tue Mar 09, 2021 7:10 pm

Up

Michalpu
Posts: 22
Joined: Sun Jan 24, 2021 1:37 pm

Re: Burning Fuses BLOCK3 via JTAG

Postby Michalpu » Wed Mar 10, 2021 12:21 pm

Here is simmiliar topic of that matter https://www.esp32.com/viewtopic.php?t=17006
Content creator at https://911electronic.com

olegboicenco
Posts: 10
Joined: Sun Jul 26, 2020 2:48 pm

Re: Burning Fuses BLOCK3 via JTAG

Postby olegboicenco » Wed Mar 10, 2021 3:34 pm

Michalpu wrote:
Wed Mar 10, 2021 12:21 pm
Here is simmiliar topic of that matter https://www.esp32.com/viewtopic.php?t=17006
Thank you for responding!
But in that topic author used espefuse utility, which works via UART

Dear forum moderators (espressif official), please answer my question

Thanks in advance!
Oleg

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

Re: Burning Fuses BLOCK3 via JTAG

Postby ESP_Sprite » Thu Mar 11, 2021 3:49 am

I don't think we have any easy-to-use support for burning fuses in OpenOCD. (Checking with a colleague, will come back to this if I'm wrong.) You can technically still manually burn the fuses by directly writing the eFuse registers in OpenOCD or GDB, but that's a bit fiddly.

olegboicenco
Posts: 10
Joined: Sun Jul 26, 2020 2:48 pm

Re: Burning Fuses BLOCK3 via JTAG

Postby olegboicenco » Wed Mar 17, 2021 2:48 pm

ESP_Sprite wrote:
Thu Mar 11, 2021 3:49 am
I don't think we have any easy-to-use support for burning fuses in OpenOCD. (Checking with a colleague, will come back to this if I'm wrong.) You can technically still manually burn the fuses by directly writing the eFuse registers in OpenOCD or GDB, but that's a bit fiddly.
Thanks for your reply, ESP_Sprite! Please clarify if the Espressif is planning to add such a function / tool in the near future?

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