Open infused-kim opened 1 year ago
You could use https://github.com/qmk/qmk_toolbox to simplify things a bit. You'll have to use the hardware reset buttons to start the bootloader mode on STM32 boards though (cf, #1086).
There is also a port of the uf2 bootloader to STM32F3 and F4 boards you can flash through DFU anf then access using the normal double tap reset sequence https://github.com/adafruit/tinyuf2
After being spoiled by how easy it is to flash nice!nanos, I was a little shocked by how hard it is for my new blackpill controller.
Even though these boards are not used much with zmk keyboards I think it would be good to improve the documentation.
In the meantime, hopefully this issue will start ranking on google.
How to flash a BlackPill, BluePill and other STM32 based boards
To flash them you need to install dfu-utils and then use these commands:
Here you should take note of the
alt=0
parameter of theInternal Flash
line. You will then use it in the next command to actually flash it with the-a 0
parameter.This is working for me on a BlackPill STM32F411CEU6 board.
If the STM32 doesn't show up in DFU mode on macOS
MacOS had trouble finding my blackpill in DFU mode. What helped was using the USB Probe app from the Apple Dev center to reset USB on macOS.
You can find more info about that here. And instructions on how and where to get the USB Probe app here.
Apparently you can also use this open source, command line renumerate utility to reset usb, but it requieres you to compile it yourself and I havent tried it.