MicroPython Forum (Archive)

Hi,

I'm trying to execute the minimal port of micropython on the NUCLEO - F446ZE. As the README file says, it should work on STM32 F4 series. However, that's not the case. The code is actually writen succesfully on the board through ST-LINK and the Micropython initializes as expected showing the following: 'MicroPython v1.11 on 2019-07-23; minimal with unknown-cpu'.

The problem occurs when trying to write any line of code. It doesn't matter if it's a variable definition or a print, micropython crashes showing nothing on the console.

Has anyone been through the same or any ideas on how to solve this?

Thanks.

Do you have an up-to-date micropython tree?

There was an issue which was fixed about 3 weeks ago. I get the following on my NUCLEO_F446RE:

That was it, I had a version from a month ago. With the updated one works perfectly. Thank you!

I was wondering how to configure or setup (jumper pins?) the board so that it can be flashed. I have looked on the stm site for information on how to to do that, but it is unclear to me.

Maybe a general note on how to set stm32 boards, if such is possible, would be greatly appreciated by many, I am sure.

thanks,

Mark

You'll need to short the BOOT0 pin to VCC then reset. That will put the board into the ST DFU bootloader so you can use "make BOARD= deploy" via the device usb port.

Otherwise you can use the stlink usb port any time with "make BOArD= deploy-stlink"

Thanks!

Well explained...