olikraus

I have implemented DMA for the STML031, it seems to be as fast as pure HW SPI, probably because of the required memory copy operation (memcpy eats up the performance...

I created another test with 32MHz system clock. SPI clock speed seems to be around 8Mhz (display still works, but the SPI clock is much higher compared to my last...

> Do you have any code for this Noritake GU256X32D-3900B display for Arduino (ESP32) ?. I don't think so...

The implementation for the GU800 had been very difficult: https://github.com/olikraus/u8g2/issues/1604 So I actually hesitate to do this again. If you would use one the existing GU800 constructor with the above...

What will you see on the GU256x32 if you use the U8G2_GU800_128X64 constructor? Obviously the result can not be correct, but still, what will be visible?

To me it looks like your display is a character display. I probably can not do anything here...

u8g2 is an Arduino library. It has been designed and written for the Arduino Framework. Maybe the python community has ported u8g2...

My dutch knowledge is almost not existing, maybe you can rephrase the problem in english. Also consider to add helpfull details like datasheet etc.

You could reimplement `mui_u8g2_u8_char_wm_mud_pi`, let's call it `my_mui_u8g2_u8_char_wm_mud_pi`. Then use `my_mui_u8g2_u8_char_wm_mud_pi` with the MUIF macros and add your modified code to your project. Code may look like this and `is_valid_char`...

Each display contains some bytes of configuration RAM. It seems that the RAM content might get corrupted after a while, especially if the power supply is not stable. Ideas: -...