mpremote issue

[Krillebg]

Suddenly my mpremote stopped functioning.
mpremote only works fine, I get into REPL as usual.But
$ mpremote cp program.py :main.py
hangs forever.
... copying 1% [--------------------]
If I hit ctrl-C I get this:

^CTraceback (most recent call last):
  File "/home/chb/.local/bin/mpremote", line 8, in <module>
    sys.exit(main())
  File "/home/chb/.local/lib/python3.8/site-packages/mpremote/main.py", line 502, in main
    handler_func(state, args)
  File "/home/chb/.local/lib/python3.8/site-packages/mpremote/commands.py", line 157, in do_filesystem
    pyboard.filesystem_command(
  File "/home/chb/.local/lib/python3.8/site-packages/mpremote/pyboard.py", line 704, in filesystem_command
    op(src2, dest2, progress_callback=progress_callback)
  File "/home/chb/.local/lib/python3.8/site-packages/mpremote/pyboard.py", line 633, in fs_put
    self.exec_("w(" + repr(data) + ")")
  File "/home/chb/.local/lib/python3.8/site-packages/mpremote/pyboard.py", line 494, in exec_
    ret, ret_err = self.exec_raw(command, data_consumer=data_consumer)
  File "/home/chb/.local/lib/python3.8/site-packages/mpremote/pyboard.py", line 480, in exec_raw
    return self.follow(timeout, data_consumer)
  File "/home/chb/.local/lib/python3.8/site-packages/mpremote/pyboard.py", line 388, in follow
    data = self.read_until(1, b"\x04", timeout=timeout, data_consumer=data_consumer)
  File "/home/chb/.local/lib/python3.8/site-packages/mpremote/pyboard.py", line 326, in read_until
    data = self.serial.read(min_num_bytes)
  File "/usr/lib/python3/dist-packages/serial/serialposix.py", line 483, in read
    ready, _, _ = select.select([self.fd, self.pipe_abort_read_r], [], [], timeout.time_left())
KeyboardInterrupt

Any ideas/hints/suggestions what could be wrong?
This seems related to a Linux/Lubuntu update that took place a few nights ago.
I'm running (L)ubuntu 20.04.6 LTS. RPi Pico target.

[Josverl]

Please use triple backtics

[davefes]

Which device are you using?

[Krillebg]

RPi Pico.
And as said, mpremote has worked fine until now.
Any command that accesses the Pico filesystem seem to suffer the same problem.
Only mpremote by itself works and I get into REPL.

[Krillebg]

[davefes]

The 3 dots at the top right corner of your original post should allow you to edit the post.

[Krillebg]

Thanks, one learns something every day.

[davefes]

I had a similar problem (rshell or mpremote) on an STM32F411 board. The problem there is if the on-board system oscillator crystal (25MHz) is off frequency the USB does not work properly. A common hack for that it to warm the board up to try and get the oscillator within the tolerance for USB comms to take place.

Maybe, something similar can happen with the Pico. I should have read your title statement!

[Krillebg]

I just tried another Pico - and it works. Problem seems indeed related to a specific board. I'll investigate further.
Many thanks for the tip!

[shariltumin]

Which version of mpremote do you use? You may be using an older version as the traceback log refers to "pyboard.py". A newer version may solve your problem.

$ mpremote --version
mpremote 0.4.0

$ cd ~/opt/lib/python3.10/site-packages/mpremote
$ ls
commands.py  __init__.py  main.py  __pycache__  transport.py
console.py   __main__.py  mip.py   repl.py      transport_serial.py

[Krillebg]

$ mpremote --version
mpremote 1.20.0
/opt directory is empty, no ~/opt dir.
I also tried uPy V1.22.0 - still hanging with cp command:

$ MicroPython_src/micropython-1.22.0/tools/mpremote/mpremote.py --version
mpremote 1.20.0

and

$ MicroPython_src/micropython-1.22.0/tools/mpremote/mpremote.py cp TCServer5W2.py :main.py + repl
cp TCServer5W2.py :main.py
 ... copying   1% [--------------------]^CTraceback (most recent call last):
  File "MicroPython_src/micropython-1.22.0/tools/mpremote/mpremote.py", line 6, in <module>
    sys.exit(main.main())
  File "/home/chb/RaspPi/Pico/MicroPython_src/micropython-1.22.0/tools/mpremote/mpremote/main.py", line 528, in main
    handler_func(state, args)
  File "/home/chb/RaspPi/Pico/MicroPython_src/micropython-1.22.0/tools/mpremote/mpremote/commands.py", line 159, in do_filesystem
    state.transport.filesystem_command(
  File "/home/chb/RaspPi/Pico/MicroPython_src/micropython-1.22.0/tools/mpremote/mpremote/transport_serial.py", line 476, in filesystem_command
    op(src2, dest2, progress_callback=progress_callback)
  File "/home/chb/RaspPi/Pico/MicroPython_src/micropython-1.22.0/tools/mpremote/mpremote/transport_serial.py", line 420, in fs_put
    self.exec("w(" + repr(data) + ")")
  File "/home/chb/RaspPi/Pico/MicroPython_src/micropython-1.22.0/tools/mpremote/mpremote/transport_serial.py", line 285, in exec
    ret, ret_err = self.exec_raw(command, data_consumer=data_consumer)
  File "/home/chb/RaspPi/Pico/MicroPython_src/micropython-1.22.0/tools/mpremote/mpremote/transport_serial.py", line 272, in exec_raw
    return self.follow(timeout, data_consumer)
  File "/home/chb/RaspPi/Pico/MicroPython_src/micropython-1.22.0/tools/mpremote/mpremote/transport_serial.py", line 180, in follow
    data = self.read_until(1, b"\x04", timeout=timeout, data_consumer=data_consumer)
  File "/home/chb/RaspPi/Pico/MicroPython_src/micropython-1.22.0/tools/mpremote/mpremote/transport_serial.py", line 118, in read_until
    data = self.serial.read(min_num_bytes)
  File "/usr/lib/python3/dist-packages/serial/serialposix.py", line 483, in read
    ready, _, _ = select.select([self.fd, self.pipe_abort_read_r], [], [], timeout.time_left())
KeyboardInterrupt

[shariltumin]

Ok I need to upgrade mpremote

$ pip install mpremote==1.22.0

then try to copy files to rp2040

$ mpremote --version
mpremote 1.22.0

$ mpremote a0 cp /tmp/MPY/pipe.mpy :/lib/pipe.mpy
cp /tmp/MPY/pipe.mpy :/lib/pipe.mpy

$ mpremote a0 ls :/lib
ls :/lib
        3180 Worker.mpy
         639 dotdict.mpy
         904 pipe.mpy

$ mpremote a0
Connected to MicroPython at /dev/ttyACM0
Use Ctrl-] or Ctrl-x to exit this shell

>>> 
MPY: soft reboot
MicroPython v1.22.2 on 2024-02-22; Raspberry Pi Pico with RP2040
Type "help()" for more information.
>>> os.statvfs('/')
(4096, 4096, 352, 343, 343, 0, 0, 0, 0, 255)

mpremote is working on my machine.

What is your os.statvfs()? Can you try cp with a small size file?
Can you try ampy to copy file to your pico?
Can you try with another pico?

[Krillebg]

>>> os.statvfs('/')
(4096, 4096, 352, 340, 340, 0, 0, 0, 0, 255)

Small file: basically same behaviour, only the % shows 2 (not 1)
ampy - unknown to me.
But, finally, another pico works as before with mpremote. cp, ls etc. all works fine.
So the problem is related to this specific Pico board (which btw. is a Wiznet 5500 EVB).
I'll dig into the board hardware and see if the xtal is off frequency.

[Krillebg]

Thank you all for good advice - the problem seems to be related to one specific board.
Special thanks to @davefes and @shariltumin.

[Krillebg]

Further to the above: I nuked the failing board and reloaded uP V1.22 and voilá: mpremote works again.
Prior to mpremote stopped functioning I had an issue with my application which for some unknown reason stopped entirely
after some 10 days (+/-5). Probably something went havoc and affected uP and/or the runtime environment.
I have no idea how to debug such a rare failure, Any ideas are welcome.