U2C_SpiGetConfigEx()

U2C_RESULT U2C_SpiGetConfigEx(
      HANDLE hDevice,
      DWORD* pConfig
);

The U2C_SpiGetConfigEx() function obtains SPI configuration.

Parameters:

hDevice

Handle to the U2C-12 device.

pConfig

A pointer to DWORD to be filled with current SPI configuration:

  • Bit 0: CPOL bit - Clock polarity. Determines the CLK line idle state:
    • 0 corresponds to idle low
    • 1 corresponds to idle high
  • Bit 1: CPHA bit - Clock phase. Determines the valid data clock edge:
    • 0 corresponds to valid data available on leading edge
    • 1 corresponds to valid data available on trailing edge
  • Bit 2: SPI Disable bit.
    • 0 corresponds to SPI Enable. MOSI and CLK pins are outputs.
    • 1 corresponds to SPI Disable. All SPI interface pins are inputs.
  • Bits 3..31: Reserved Bits.

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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