在DSP等芯片中有SPI接口，但是通常由于传输模式选择的错误导致连接失败，本文提供了详细的配置方案-In the DSP and other chips with SPI interface, but usually due to errors in transmission mode selection causes the connection fails, this article provides a detailed configuration

精解SPI的CPHA时钟相位与CPLK时钟极性-Explain the CPHA clock phase and the CPLK clock polarity of SPI