U2C_SpiGetConfig()

U2C_RESULT U2C_SpiGetConfig(
      HANDLE hDevice,
      BYTE* pCPOL,
      BYTE* pCPHA
);

The U2C_SpiGetConfig() function obtains SPI bus configuration (clock polarity and phase).

Parameters:

hDevice

Handle to the U2C-12 device.

pCPOL

A pointer to the byte to be filled with current SPI bus clock polarity setting. Clock polarity determines the CLK line idle state, where:

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

pCPHA

A pointer to byte to be filled with current SPI bus clock phase setting. 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 configuration was successfully obtained.

U2C_HARDWARE_NOT_FOUND

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

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