mpremote 27KB image will cause Device not configured

[quantrpeter]

Hi
I am using these step to build image for waveshare s3 3.5 touch. I can use mpremote to get into the shell. If i use mpremote to copy 2KB image to device, it works. If copying 27KB image, it as these error:

git clone https://github.com/lvgl-micropython/lvgl_micropython.git
cd lvgl_micropython
git checkout 15a414bc03486017235234882ce7415532c6325e
docker run -it -v .:/micropython --name micropython ubuntu
apt-get update
export DEBIAN_FRONTEND=noninteractive
apt-get install -y gcc g++ make automake python3 git gcc-arm-none-eabi libusb-1.0-0 python3-venv cmake
ln -s /usr/bin/python3 /usr/bin/python
cd /micropython
python3 make.py esp32 clean \
  --flash-size=16 \
  BOARD=ESP32_GENERIC_S3 \
  CONFIG_SPIRAM_XIP_FROM_PSRAM=y \
  DISPLAY=ST7796 \
  INDEV=FT6X36
  
exit docker 
  
esptool.py --chip esp32s3 -b 460800 \
    --before default_reset \
    --after hard_reset write_flash \
    --flash_mode dio \
    --flash_size 16MB \
    --flash_freq 80m \
    --erase-all 0x0  \
    build/lvgl_micropy_ESP32_GENERIC_S3-16.bin

/Users/peter/workspace/esp32-c6-micropython-lvgl/waveshare_s3_touch_3.5/simple_test>mpremote cp colorful.png :           
cp colorful.png :
 ... copying  12% [##------------------]Traceback (most recent call last):
  File "/Users/peter/.pyenv/versions/3.12.9/bin/mpremote", line 8, in <module>
    sys.exit(main())
             ^^^^^^
  File "/Users/peter/.pyenv/versions/3.12.9/lib/python3.12/site-packages/mpremote/main.py", line 569, in main
    handler_func(state, args)
  File "/Users/peter/.pyenv/versions/3.12.9/lib/python3.12/site-packages/mpremote/commands.py", line 395, in do_filesystem
    do_filesystem_cp(state, path, cp_dest, len(paths) > 1, not args.force)
  File "/Users/peter/.pyenv/versions/3.12.9/lib/python3.12/site-packages/mpremote/commands.py", line 187, in do_filesystem_cp
    state.transport.fs_writefile(dest[1:], data, progress_callback=show_progress_bar)
  File "/Users/peter/.pyenv/versions/3.12.9/lib/python3.12/site-packages/mpremote/transport.py", line 157, in fs_writefile
    self.exec("w(" + repr(chunk) + ")")
  File "/Users/peter/.pyenv/versions/3.12.9/lib/python3.12/site-packages/mpremote/transport_serial.py", line 289, in exec
    ret, ret_err = self.exec_raw(command, data_consumer=data_consumer)
                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/peter/.pyenv/versions/3.12.9/lib/python3.12/site-packages/mpremote/transport_serial.py", line 276, in exec_raw
    return self.follow(timeout, data_consumer)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/peter/.pyenv/versions/3.12.9/lib/python3.12/site-packages/mpremote/transport_serial.py", line 184, in follow
    data = self.read_until(1, b"\x04", timeout=timeout, data_consumer=data_consumer)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/peter/.pyenv/versions/3.12.9/lib/python3.12/site-packages/mpremote/transport_serial.py", line 123, in read_until
    elif self.serial.inWaiting() > 0:
         ^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/peter/.pyenv/versions/3.12.9/lib/python3.12/site-packages/serial/serialutil.py", line 594, in inWaiting
    return self.in_waiting
           ^^^^^^^^^^^^^^^
  File "/Users/peter/.pyenv/versions/3.12.9/lib/python3.12/site-packages/serial/serialposix.py", line 549, in in_waiting
    s = fcntl.ioctl(self.fd, TIOCINQ, TIOCM_zero_str)
        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
OSError: [Errno 6] Device not configured

thanks
Peter

[kdschlosser]

I believe that the latest release of MicroPython fixes that issue. It was released only a few weeks ago and I am waiting to see if all of the issues are hammered out before updating the version. You are more then welcome to try it to see if it will compile properly. All you have to do is clone the repo as normal and then run the following commands

cd lvgl_micropython
git submodule update --init lib/micropython
cd lib/micropython
git checkout v1.26.1
git pull
cd ../..

and then run the build as usual.

[quantrpeter]

just tried to build from latest source

python3 make.py esp32 clean   --flash-size=16   BOARD=ESP32_GENERIC_S3   DISPLAY=ST7796   INDEV=FT6X36

copy 27KB file to device, crashed:

/home/peter/workspace/Waveshare-esp32-c6-st7735-micropython-lvgl/waveshare_s3_touch_3.5/simple_test>mpremote cp colorful.png :
cp colorful.png :
 ... copying  14% [##------------------]mpremote: cp: Input/output error: Input/output error.

If i add this "CONFIG_SPIRAM_XIP_FROM_PSRAM=n", then it back to work, but i can't live without PSRAM, please help ??

thanks

[kdschlosser]

having 'CONFIG_SPIRAM_XIP_FROM_PSRAM' set to 'y' which is the default loads all of the code in the binary into RAM when the ESP32 boots. This allows for the program to run quite a bit faster, the tradeoff is quite a bit more RAM use. The reason why it is faster is because the bandwidth for the SPIRAM and the SPI FLASH is not being shared anywhere near as much. It allows for faster code execution. You need to use an ESP32 that has enough memory to use this feature which is sounds like your ESP32 does not. So setting it to 'n' is your only choice. If this setting is set to n and you are using an RGB display there is a possibility that there will be issues with the display not working. All other display types (SPI, I8080, etc) do not have any issues running with this option set to n

[quantrpeter]

thanks for answer and how can i enable PSRAM?

[kdschlosser]

it is enabled. that setting only copies the firmware into ram when you boot the ESP32. you don't have enough ram to be able to do that.