STM32MP1 flash duration

[FOrtn.1]

According to wiki article https://wiki.st.com/stm32mpu/wiki/STM32MP15_Discovery_kits_-_Starter_Package#Image_flashing it takes "several minutes" to flash partitions.

Flashing bitbake optenstlinux 2.0 (distribution package) or starter image to SDCard of my STM32MP157c-DK2 board takes several hours (~4h)! Is this normal?

[Imen Ezzine]

Hi FOrtn.1,

I can say that this is related to the image size and the used protocol.  For example for flashing an image of 1GB it is normal to take a good while. Also via USB protocol would be much faster than via UART.

So I would say this seems normal as long as you obtain a successful flashing.

Please don't hesitate to share more feedbacks in the future.

-Imen

[PatrickF]

Hi,

4 hours sound very long and not normal.

Please check you are not using USB 1.x (12Mbit/s) for whatever reason (e.g. very old USB hub, cable issue, DFU driver issue, etc...).

You could then try using a different SD-Card brand.

Starter kit v2.0.0 image programming on STM32MP157C-DK2 take about 8 minutes on my W10 Laptop using CubeProgrammer v2.5.0. This is about 1.5MB/s average.

Usually similar time or slightly faster when using CubeProgrammer on Linux (or Virtual Machine).