MicroPython Forum (Archive)

I posted a possible solution to this in https://github.com/micropython/micropython/pull/5660. This allows the "stem" example to work as originally intended.

There are two things of note that might be related to the issues here: The USB connector on the pyboard-D is the USB-HS port which does not support the built-in ST USB DFU bootloader . To access the low-level ST bootloader you'll need a WBUS-DIP28 which brings the USB-FS port out to the USB connecto...

This difference has been added to the CPython-difference part of the docs (see github for reference).

We're happy to announce the next release of MicroPython, v1.12! Source code and firmware can be downloaded from https://micropython.org/download/ The full change log can be found at https://micropython.org/resources/micropython-ChangeLog.txt A summary of the changes follows. Enjoy! v1.12: PYBD board...

In your code you call both mp_stack_ctrl_init() and mp_stack_set_top(...). Only one of these should be called, usually it's mp_stack_ctrl_init() which sets the stack top automatically. mp_stack_set_top is only used if setting it automatically doesn't work. Otherwise, the stack limit checking is quit...

The PYBD_SF6 uses double precision float, and only provides the double precision math functions (eg sin, cos, not sinf, cosf). I see in your ulab code that you use "float" exclusively as the FP data type (at the C level). Is this a restriction or can it also work with double? I would suggest changin...

This really sounds like a hardware issue with the external QSPI flash, the memory-mapped one. The only thing I can suggest at this stage is to remove the PYBD_SF2 completely from anything connected to it, and power it up over USB and measure the current draw using a USB power meter. It should draw a...

I think it makes sense to create new sub-forums for ports, but only as they see interest/use. The nrf port is a good candidate to start with.

Some of the unix command-line test do run the unix port through a piped connection to a subprocess with redirected input, so that is certainly possible. In such a case raw REPL would be useful.

When developing the pyboard D-series we did a lot of low-power measurements and optimisations, because it was a key goal to obtain optimal lowspower operation of the MCU and WiFi chips. Not all low-power features are available yet, nor all characterised, but to give you an idea: in lowest power mode...