2021-04-28 01:46 PM
The CFAL has CS, Cd, RESET, MOSI and SCLK pins
There is no MISO line
The St chip is a STM32L476
2021-04-28 02:08 PM
Perhaps go look at some other SSD1306/1309 type drivers
You can use NRST for the reset, or use a GPIO