coines_config_spi_bus

Configures the SPI bus of the board. The argument coines_spi_bus refers to the bus on the board. On APP2.0, there is only one bus available, so the user should only use COINES_SPI_BUS_0. The SPI speed can be chosen in various discrete steps, as defined in enum coines_spi_speed in coines.h (For example, COINES_SPI_SPEED_2_MHZ sets the SPI speed to 2 MHz).

int16_t coines_config_spi_bus(enum coines_spi_bus bus, uint32_t spi_speed, enum coines_spi_mode spi_mode);