search

wjklimek1 / SSD1322_OLED_library

Portable library for 256x64 OLED display with SSD1322 controller (with STM32F4 example project)
Other
35 stars 8 forks source link

SPI Configuration #3

Open kiranps19 opened 3 weeks ago

kiranps19 commented 3 weeks ago

Hi,

Thanks for the library. I've got it working with STMH755ZIQ. One of the problems i faced was , when i setup SPI configuration based on the read me which is

clock polarity (CPOL) = High clock phase (CPHA) = 2 Edge

It didn't work, So i just tried the normal one, CPOL = low and CPHA = 1 edge. This worked for me, i'm using this board https://www.aliexpress.com/item/1005006161591545.html. Might be helpful for some people. I didn't know where to mention this, so i just raised an issue, sorry.

Regards, Kiran

wjklimek1 commented 3 weeks ago

Hi, It's weird because SSD1322 datasheet explicitly shows that clock is high when idle (CPOL=1) and MOSI is probed at rising edge that is 2nd edge (CPHA=2). If I have any spare time soon I will wire up my display and check it in both modes.