SPI Settings

SPI settings are listed below. The settings are configured using the menu shown below.

Setting	Description	Notes
Frequency	SPI Clock Frequency
Chip Select Pin	GPIO used for Chip select.	GPIO must be configured for output.
Data bits	The width of the spi bytes	(only 8 is currently supported)
CPOL	clock polarity	Refer to RP2040 data sheet section 4.10 on clock phase and polarity. Most common is 0,0.
CPHA	clock phase

SPI has 5 settings