Programming Flash - It is possible using SPI

[NevynSelby]

After reading the documentation I think I know the answer, but is it possible to use the SPI bus to load a program into the flash memory?

From what I have read I think there are really only two options:

• UART

• OTA

Is this correct?

Regards,
Mark

[ESP_Sprite]

You can do OTA over any protocol or bus you want, including SPI. (Obviously, you may need the glue logic for this yourself.)

[NevynSelby]

By glue logic - I take it you mean we would have to put the logic in our application or write a custom bootloader?

Regards
Mark

[ESP_Sprite]

Yes. There's a driver for SPI, and if I recall correctly you can feed data from any source into the OTA subsystem. You'd just need to write the logic to tie them together according to what specific data transfer logic you want to use.

[NevynSelby]

Thank you for your help.

Regards,
Mark