QUERY · ISSUE

PPP.active freezes MicroPython

openby pablogventuraopened 2024-05-28updated 2025-05-15

bug

Checks

I agree to follow the MicroPython Code of Conduct to ensure a safe and respectful space for everyone.
I've searched for existing issues matching this bug, and didn't find any.

Port, board and/or hardware

esp32 port, ESP32_GENERIC_C3

MicroPython version

MicroPython v1.22.2 on 2024-02-22; ESP32C3 module with ESP32C3

Reproduction

import network
import time
import machine
uart = machine.UART(1, baudrate=115200, tx=18, rx=19)
ppp = network.PPP(uart)
ppp.active(True)
ppp.connect()
ppp.active(False)
ppp.active(True)

Expected behaviour

I would expect MicroPython to activate PPP or return an exception.

Observed behaviour

After re-activating the PPP, MicroPython freezes, even to the point of not detecting a KeyboardInterrupt.

Additional Information

The problem is independent of whether or not there is a PPP module connected to that Uart, and it is also independent of the activation of the PPP module with the AT commands.

I understand that the problem occurs whenever PPP is deactivated and reactivated.

CANDIDATE · ISSUE

rp2: code sometimes hangs when doing `bluetooth.BLE().active(True)`

openby dpgeorgeopened 2024-03-15updated 2025-03-03

bugport-rp2

Checks

I agree to follow the MicroPython Code of Conduct to ensure a safe and respectful space for everyone.
I've searched for existing issues matching this bug, and didn't find any.

Port, board and/or hardware

rp2 port with RPI_PICO_W

MicroPython version

RPI_PICO_W-20240105-v1.22.1.uf2

Reproduction

Run the application at https://github.com/Gaudon/zephyr-cycling:

install RPI_PICO_W-20240105-v1.22.1.uf2 to a Pico W board
copy all files from the above repo to the board (omit firmware directory)
copy config/template-primary.txt or config/template-secondary.txt to the board at config/config.txt (they can be changed to assign different GPIO if needed)
reset the board to run the code in main.py

Expected behaviour

Application starts and continues to run.

Observed behaviour

Code sometimes hangs at ble.active(True).

Additional Information

This is branched off from issue #6423 at https://github.com/micropython/micropython/issues/6423#issuecomment-1995163998

Note that I cannot reproduce this issue, but @Gaudon can in the above thread.