Flashing NVS partition .bin file into esp32 device using JTAG.

[CKiamy]

Hello everyone,

for my application I would like to flash a costumized NVS partition table inside my esp32 device. The way I do this is I first create a csv file containing the required namespaces and data for my application.

I then proceed to use the nvs_partition_gen.py script that espressif provides to convert this csv file into a bootable .bin file.

Afterwards, I use parttool.py (which in itself calls esp_tool.py) to flash the nvs.bin file to the esp32 via UART:


parttool.py --port COM1 write_partition --partition-name=nvs --input "nvs.bin"

Is there a way to recreate this steps using only a jtag tool (ESP_PROG, Jlink...) without needing to use the rx/tx terminals of the esp32?

Best regards
Carlos

[CKiamy]

bump

[ESP_Sprite]

You could likely do it using OpenOCD, but you'd need to specify the offset in flash you're writing to rather than the partition name.

[CKiamy]

You could likely do it using OpenOCD, but you'd need to specify the offset in flash you're writing to rather than the partition name.

Thank you! I am sorry if I am bumping my posts, I am quite new to development and it is hard to formulate good questions sometimes.