Search found 627 matches

by Damien
Tue Feb 18, 2020 11:23 am
Forum: Development of MicroPython
Topic: How to invoke own method from C?
Replies: 5
Views: 489

Re: How to invoke own method from C?

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.
by Damien
Mon Feb 03, 2020 12:35 am
Forum: Pyboard D-series
Topic: Pyboard-D fwupdate.py config help
Replies: 4
Views: 469

Re: Pyboard-D fwupdate.py config help

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...
by Damien
Mon Jan 06, 2020 12:28 pm
Forum: General Discussion and Questions
Topic: dict.keys() does not behave as set
Replies: 4
Views: 309

Re: dict.keys() does not behave as set

This difference has been added to the CPython-difference part of the docs (see github for reference).
by Damien
Mon Dec 23, 2019 12:11 am
Forum: Announcements and News
Topic: MicroPython version 1.12 released
Replies: 16
Views: 4203

MicroPython version 1.12 released

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...
by Damien
Fri Nov 22, 2019 4:12 am
Forum: Development of MicroPython
Topic: How to soft reset the whole context of upy when process running?
Replies: 3
Views: 572

Re: How to soft reset the whole context of upy when process running?

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...
by Damien
Fri Nov 01, 2019 10:51 am
Forum: Development of MicroPython
Topic: ulab, or what you will - numpy on bare metal
Replies: 62
Views: 6215

Re: ulab, or what you will - numpy on bare metal

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...
by Damien
Fri Nov 01, 2019 10:48 am
Forum: Pyboard D-series
Topic: DFU flashing 2nd partition takes 20 minutes
Replies: 9
Views: 982

Re: DFU flashing 2nd partition takes 20 minutes

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...
by Damien
Tue Oct 29, 2019 6:15 am
Forum: Other Boards
Topic: Split Other Boards into port specific forums?
Replies: 2
Views: 552

Re: Split Other Boards into port specific forums?

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.
by Damien
Wed Oct 16, 2019 10:55 am
Forum: General Discussion and Questions
Topic: Raw mode and help missing from the Unix port?
Replies: 7
Views: 690

Re: Raw mode and help missing from the Unix port?

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.
by Damien
Wed Oct 16, 2019 10:53 am
Forum: MicroPython pyboard
Topic: What is lowest consumption of D-series?
Replies: 5
Views: 713

Re: What is lowest consumption of D-series?

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...