D.Can

Hi @buha , Thank you for your responding. Yes, i used CubeMx and i selected MOSI/MISO/SCK. CubeMX generated code for me. After than, library initialize Chip Select pin, in here....

Thank you again. @buha I am using STM32F405ZGT . I tried CS pin with logic analyzer. As i said before , it is not working at here: https://github.com/analogdevicesinc/no-OS/blob/6a503d47eb05b2c0159a907e69cb2917ec8bbba0/drivers/platform/stm32/stm32_spi.c#L253 When using...