OTA Updates for M4 on STM32MP1

[NPal.2]

Hi,

I am planning to build an OTA update system for STM32MP1 which I have been using in my development.

1. My question here is that linux based changes can be catered as part of *.swu files in case of OpenSTLinux for A7 , but how do we pack updates for the M4 core alongwith *.swu files for STM32MP1.
2. What if I have couple of other MCU connected via JTAG to MP1 and I want to provide them with OTA update , how will I manage this via Yocto ?

Really appreciated all the inputs.

[Olivier GALLIEN]

Hi @NPal.2​ ,

1 - M4 firmware is located either in rootfs ( /lib/firmware) in case of boot from Linux, or bootfs in case of early boot from Uboot.

In 2 cases its OTA update will then be manage along the OTA of linux partition

2 - Similarly you can put each MCU firmwares to be upgrade inside a linux partition.

Olivier