MicroPython Forum (Archive)

Anyone know about that?

After 1 year passed, is safe to run at 270Mhz? I'm running some tests with 270Mhz and I have no problem, but I do not know if something can not works. Do you know? >>> from machine import freq >>> import gc, time, array >>> freq(270_000_000) >>> freq() 270000000 >>> >>> import os >>> os.uname() (sys...

Hi all. I would like to use the Pyboard D-Series ( SF2W model) for realtime communication using CANBUS , and I would like to know what is the behaviour of the pyb.CAN.rxcallback() (https://docs.micropython.org/en/latest/library/pyb.CAN.html#pyb.CAN.rxcallback) when Garbage Collector ( GC ) is runnin...

Hi, I've done some test with a ESP32-WROVER-IE and an external SPI Wiznet5500 ethernet chip. After a lot of research on this forum and github, I've decided to try to modify a pure-python adafruit driver (developed for circuitpython) for this chip. Now it seems works, but maybe it need more test. I ...

I didn't find any reference on the official doc. I did find this post that uses wiznet chipset over SPI without any reference of the working solution: https://forum.micropython.org/viewtopic.php?f=18&t=11378&p=62493&hilit=ethernet#p62493 I was hoping for the native Ethernet on ESP32 but any externa...

Hi, I've done some test with a ESP32-WROVER-IE and an external SPI Wiznet5500 ethernet chip. After a lot of research on this forum and github, I've decided to try to modify a pure-python adafruit driver for this chip. Now it seems works. Please, could you: 1. Share the source code Wiznet5500 driver...

Will the SSL works on the socket over ethernet LAN8720 like as SSL works on the socket over the WiFi?

This is an area I haven't tested on the RP2, however the fact that you can allocate in a timer ISR implies that the RP2 timer IRQ is soft. Your ISR code would definitely fail on a Pyboard's hardware timer. The docs for RP2 indicate that timers are soft. Pin IRQ's on RP2 may be hard or soft. Hi @pyt...

This is an area I haven't tested on the RP2, however the fact that you can allocate in a timer ISR implies that the RP2 timer IRQ is soft. Your ISR code would definitely fail on a Pyboard's hardware timer. The docs for RP2 indicate that timers are soft. Pin IRQ's on RP2 may be hard or soft. Hi @pyt...

A hard IRQ will interrupt a GC. Once the Python ISR has completed, the GC will resume from the point where it was interrupted. The ISR cannot allocate and any attempt to do so will raise an exception. Understood! Thank you very much @pythoncoder for your help. I will add a "test.append('ok')" insid...