Thonny and Micropython run great together.
Here is a link where you can download different firmware.
You should also flash the firmware via Thonny. It is very simple.
https://github.com/russhughes/ili9342c_mpy

SD card unfortunately still does not run through!
I get this error message when the SD card fails.
[Errno 5] EIO
I wonder what the problem is here?
Sometimes it goes only 2 hours and sometimes up to 2 days.
If I log nothing on the SD card, I can just write something on it even after 5 days and it goes. Just not in continuous use.

Is there a way to disable the Core2 in software?
So PowerOff?

Yes works perfectly at the beginning.
Sometimes many days without problems and then is no longer written to the SD card.
Sometimes it no longer works after a few hours.

@Russ
hello,
when I install the new firmware 1.16, I get the message that the build rate is unknown.
If I go back to 1.14, everything runs without problems.
Do you know what the problem could be?

@russ
I have a problem with the SD card.
My program runs sometimes 1-2 days well through and then when it comes to an error and hangs, it is restarted by the watchdog. When restarting but then no longer the SD card with the command:
sd_device = sdcard.SDCard(spi, cs=Pin(4), baudrate=20000000)
installed.
Do you have a tip what this could be and how I can change it?

@ajb2k3
Thanks for the info.
Where is the best place to put it in the code

@russ
Thank you very much for your effort.
What is this code for in the end?
Is it mandatory to use it?

finally:
    # shutdown
    spi.deinit()

@russ
Super!
Thank you for doing this work.