Function d1_mini::spi_master

pub fn spi_master(
    spi1: SPI1, 
    d5: Gpio14<UnInitialized>, 
    d6: Gpio12<UnInitialized>, 
    d7: Gpio13<UART>, 
    frequency: SpiClock
) -> SPI1Master

Convenience function for setting up the D5/D6/D7 pins to operate as SPI SCK/MISO/MOSI respectively, running at the provided frequency.