mlyszczek commented on PR #6537: URL: https://github.com/apache/incubator-nuttx/pull/6537#issuecomment-1169203972
That OpenAMP looks promising and nice but I have some concerns. Mainly about memory. It seems quite complex (and definately way more complex than simple character device stream) so I suspect it requires quite a lot of memory (for an mcu)? Looking around I noticed that it requires at least one extra thread (for dispatching) that by default uses 4kB of ram. That is *a lot* considering that this will have to work on two of the CPUs. Not to mention extra code size (that I did not confirm in any way). ST promotes openamp yes, but I've seen it's on their stm32mp* processors which have arm A7 and M4 - so there is plenty of RAM. On stm32wl5 you have 64kB, and I did not see way to enable openamp in their stm32cube. I want to use this to communicate via LORA and draw stuff on LCD - this will take it's own share of memory, so I don't want to add extra features to the plate (even tough they seem nice) as I already am a little afraid of exhausing RAM. So do you know how much extra memory would openamp take (ram/flash)? -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: commits-unsubscr...@nuttx.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org
