Which is better for network communication, the STM32F429 or the STM32F407?

[SNorm.1]

Which is better for network communication, STM32F429 or STM32F407? I would like to ask for your opinion and whether it is possible to use DMA transfer? Or if there is a better solution？ thanks!

[waclawek.jan · Accepted solution]

You mean Ethernet?

These two are identical in this regard, they have the same ETH/MAC module. And DMA is part of that module.

'F429 (or 'F427, if you don't need the LTDC module) has somewhat more RAM (+64kB) and slightly higher maximum system clock frequency (180MHz vs. 168MHz).

JW

[Imen GH]

Hello @SNorm.1​ ,

I recommend you to refer to Application note AN4547 "Migrating from STM32F407xx/417xx to STM32F427xx/429xx/437xx/439xx"

 

 Imen,

[SNorm.1]

Thank you for your reply, I think what you said was very helpful to me.

[SNorm.1]

Thank you.

[Piranha]

Just take a note that the generic DMA1 and DMA2 are not related to Ethernet. ETH module has it's own dedicated DMA engine.