This function should not be used in new projects. Use SPISettings. with SPI.beginTransaction(). to configure SPI parameters.

Sets the SPI data mode: that is, clock polarity and phase. See the Wikipedia article on SPI for details.

SPI.setDataMode(mode)

mode:

• SPI_MODE0

• SPI_MODE1

• SPI_MODE2

• SPI_MODE3

chipSelectPin - peripheral device CS pin (Arduino Due only)

None.