U2C-12 USB-I2C/SPI/GPIO Interface Adapter Users Manual
3.7.3. U2C_SpiSetConfigEx()
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.
- Bit 0: CPOL bit
- Clock polarity. Determines the CLK line idle state:
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.
