U2C_RESULT U2C_SpiSetConfigEx (
HANDLE hDevice,
DWORD Config
);
The U2C_SpiSetConfigEx function enables/disables and configures SPI interface.
- Parameters:
-
| hDevice | Handle to the U2C-12 device. |
| Config | SPI configuration bits:
- 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, should be 0.
|
- Return values:
-
| U2C_SUCCESS | SPI bus was successfully configured. |
| U2C_HARDWARE_NOT_FOUND | U2C-12 device referenced by hDevice handle was not found. |
|
