MicroPython Forum (Archive)

Seems to me your board is working fine and the issue is with your USB connection. Maybe try a Linux Live distro on a USB drive instead of running in a VM. Or, if you have a serial-USB adapter, enable the console on UART6 in mpconfigboard.h, recompile, flash firmware and then connect the serial-usb a...

- Does the board show up as a USB device at all (e.g. with lsusb)?
- Did you try the procedure to re-create the flash drive (hold user and reset button, let go of reset button, then release user button when two leds are lit together)?
- Did you try flashing with openocd (make target deploy-openocd)?

So, if I want to put constant definitions in a separate module, to be imported by my other modules or main program, "const" won't be of any use to me at all? That's unfortunate, because it puts a penalty on modularizing the code.

deshipu wrote:I'm afraid const() will only save memory when used within the same module. If you use it from another module, it has to live in memory.

That's surprising. Can you elaborate on why this is so?

STM32F boards with Flash memory have the facility to protect the flash contents against reading them out with a debugger or similar. It doesn't work with MicroPython and I'm sceptical that it could be made to work.

Any further hints from anyone?

There is an staccel.py file in the stmhal/boards/STM32F4DISC directory which does support the accelerometer on the 407 discovery board: https://github.com/micropython/micropython/blob/master/stmhal/boards/STM32F4DISC/staccel.py Except this one doesn't work out of the box. Here's a fixed one: https:...

Impressive.

I don't think this would work. USB-MIDI is a configuration of the USB Audio class and not a HID device.

I was replying to this:

Rando wrote:[...] failing that can you refer me to a know good STM32F4 Discovery that works with MicroPython.

Chris