Solved: SDRAM support on F746G-disco

C programming, build, interpreter/VM.
Target audience: MicroPython Developers.
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forester3
Posts: 19
Joined: Sat Oct 21, 2017 5:01 am

Solved: SDRAM support on F746G-disco

Post by forester3 » Mon Jul 30, 2018 2:59 am

Hello,

I found this PR.
https://github.com/micropython/micropython/pull/3940

I will try to this my STM32F746G-Discovery board.
But SDRAM works lower than 200MHz on STM32F746G-Disco.
Is there any problem SYSCLK will be down in "mpconfigboard.h"

Otherwise, should I change the clock after judging the validity of SDRAM?
Last edited by forester3 on Fri Aug 10, 2018 1:38 am, edited 1 time in total.

forester3
Posts: 19
Joined: Sat Oct 21, 2017 5:01 am

gc.collect() freeze, as yet

Post by forester3 » Mon Aug 06, 2018 1:35 am

Hi,

I defined pins about SDRAM, and I built firmware.
I think SDRAM initialization is done.

But at gc.collect(), firmware freeezes.

My test source for SDRAM will be found here:
https://github.com/forester3/micropytho ... disc-sdram

forester3
Posts: 19
Joined: Sat Oct 21, 2017 5:01 am

I finished PR.

Post by forester3 » Tue Aug 07, 2018 11:42 am

I finished PR to supprort SDRAM on STM32F746G-Discovery.
This PR can be found here: https://github.com/micropython/micropython/pull/4032

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