Trying to add F4 Discovery Board but having an issue.

[EricB-Arch]

Hi, I'm working on adding the F4 Disco.

1. Having an issue where in building Release the board might hard fault or or I get a USB not recognized in windows.

If I run a debug via VS Code/Platform IO and break on Line 2899 "return hal.version == 10;" in driver.c for some reason it will inititialize fine. Probably something I did.

Here is my commit, be great if someone would take a look at it for any glaring errors.
EricB-Arch/STM32F4xx@7362eea#diff-4446afd728a4f34cbcddc306a9cb6be845d1a61c216076a295683bcc9c106724

2. Is it possible to set number of and ganged axis in platormio.ini? Haven't figured that out.

edit: Ok, I see I have a problem with the pin assignments for M4 or M5, N_AXIS=4 is working!

Thanks for a very cool project and any help.

[EricB-Arch]

For ganging I see the answer is probably in motor_pins but first some sleep.

[terjeio]

1. Hard to tell what is causing this since I do not have a board to test with.
2. Most #defines can be overridden from platformio.ini (with -D ...) - ganged axes are configured by these.

[EricB-Arch]

Thank you, I did go back and better understand the #defines and ran into to some issues in my board map. Mostly sorted now.

Still having the release vs. debug issue, first I am assuming it's something with my configuration. I'd guess there is some race going on where something I did is breaking USB or pin conflict maybe. Will keep at it!

[EricB-Arch]

Defined uart pins and it fixed the release issue.