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Since UIFlow display nothing on the screen, I tried the test with the ILI9341 library for MicroPython I found.
https://github.com/tuupola/micropython-ili934x/blob/master/ili934x.py
I copied the above library to Core2 and ran the following code from the serial console.
import ili934x
from machine import Pin, SPI
spi = SPI(miso=Pin(38), mosi=Pin(23, Pin.OUT), sck=Pin(18, Pin.OUT))
display = ili934x.ILI9341(spi, cs=Pin(5), dc=Pin(15), rst=Pin(4))
display.fill(ili934x.color565(0xff, 0x11, 0x22))
display.pixel(120, 160, 0)
display.print('1234567890 ABCDEFGHIJKLMNOPQRSTUVWXYZ')
: : :
display.print('1234567890 ABCDEFGHIJKLMNOPQRSTUVWXYZ')
As a result, the characters are displayed as shown in the image below.
I'm not sure what this means, but can it help analyze the problem?
