STM32MP257F-DK vs STM32MP157F-DK2

[onass]

Hello,

I have some sort of experience working with linux on RPI.

I wanted to increase my embedded linux experience with STM32MP.

So I wonder, should I buy STM32MP2 because its newer, or STM32MP1 because it will probably have more support and more reference because its been here for some time now?

Also, for STM32MP257F-DK, the debug port and the power supply are shared on the same USB-C, how can i do both at the same time? because I don't think the PC can supply it with enough power

Would I need anything to start other than the external USB-C power supply?
Any other recommendations are welcome

[Olivier GALLIEN]

Hi @onass ,

A standard PC, USB-C power delivery port delivered enough power, so the sharing with debug port is not an issue for STM32MP257F-DK. 

For your choice I guess it depend if you target advanced graphic UI or AI. 

The MP2 offers more powerful GPU, and a NPU. 

Hope it help, 

Olivier 

 

[onass]

Hello @Olivier GALLIEN,

Thank you for your reply.

 

Unfortunately, my PC does not have a USB-C power delivery port.

 

I don't have a specific target other than learning more about embedded linux, then designing my custom PCB with an MPU

[onass]

@Olivier GALLIEN 

will a USB hub solve this issue?
something like this one

 

[Olivier GALLIEN]

Hi @onass ,

Yes it might work.

Some people report it works with this model 

 

 

Else this kind of cable couple with appropriate wall adapter works : 

 

Olivier 

[onass]

Thank you! @Olivier GALLIEN 

Just one final question,
which has a higher learning curve STM32MP257F-DK or STM32MP157F-DK2?
I would like to think that they are kinda similar.

Some say that STM32MP157F-DK2 would be easier as it would be more developed with the community, which means more resources