Burning Fuses BLOCK3 via JTAG

[olegboicenco]

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


Thanks in advance!
Oleg

[olegboicenco]

Up

[Michalpu]

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

[olegboicenco]

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]

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]

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?