U2C_SpiSetConfig()

U2C_RESULT U2C_SpiSetConfig(
      HANDLE hDevice,
      BYTE CPOL,
      BYTE CPHA
);

The U2C_SpiSetConfig() function configures SPI bus clock polarity and phase.

Parameters:

hDevice

Handle to the U2C-12 device.

CPOL

Clock polarity value determines the CLK line idle state, where:

  • 0 corresponds to "idle low"
  • 1 corresponds to "idle high"

CPHA

Clock phase value determines the clock edge when the data is valid on the bus, where:

  • 0 corresponds to valid data available on leading edge
  • 1 corresponds to valid data available on trailing edge

Return values:

U2C_SUCCESS

The SPI bus was successfully configured.

U2C_HARDWARE_NOT_FOUND

U2C-12 device referenced by hDevice handle was not found.

Rating: 
Голосов пока нет