Digole OLED displays not working?

Hardware
25

Pete, in case you want to try again, I ultimately found I needed to change another line. The lines I changed were the two delayMicroseconds calls like so:

SPI.setDataMode(1);
        SPI.begin(_SS);
    }
    
    void end(void) {
        pinMode(_SS, INPUT);
        SPI.end();
    }

    size_t write(uint8_t value) {
        
        PIN_MAP[_SS].gpio_peripheral->BRR = PIN_MAP[_SS].gpio_pin; //Low
        delayMicroseconds(10); //10 fixes it **********************
       
       
        //SPI.setDataMode(3);
       
        SPI.transfer(value);
        
        
       // SPI.setDataMode(0);
    
        delayMicroseconds(100); //100 fixes it **************************

        PIN_MAP[_SS].gpio_peripheral->BSRR = PIN_MAP[_SS].gpio_pin; //High
        return 1;
    }
#endif