SPI Driver Library Interface for MPLAB® Harmony v2
​

Detailed descriptions for this library can be found on MPLAB® Harmony v2 Help and Documentation
(found in the <harmony install directory>/doc folder).

System Interaction Functions

Function Name Description
DRV_SPI_Initialize Initializes the Serial Peripheral Interface (SPI) instance for the specified driver index
DRV_SPI_Deinitialize Deinitializes the specified instance of the SPI driver module
DRV_SPI_Status Provides the current status of the SPI driver module
DRV_SPI_Tasks Maintains the driver's state machine and implements its Interrupt Service Routine (ISR)

Client Setup Functions

Function Name Description
DRV_SPI_Close Closes an opened instance of the SPI driver
DRV_SPI_Open Opens the specified SPI driver instance and returns a handle to it
DRV_SPI_ClientConfigure Configures a SPI client with specific data

Data Transfer Functions

Function Name Description
DRV_SPI_BufferStatus Returns the transmitter and receiver transfer status
DRV_SPI_BufferAddRead Registers a buffer for a read operation. Actual transfer will happen in the Task function.
DRV_SPI_BufferAddWrite Registers a buffer for a write operation. Actual transfer will happen in the Task function.
DRV_SPI_BufferAddWriteRead Registers a buffer for a read and write operation. Actual transfer will happen in the Task function.
DRV_SPI_BufferAddRead2 Registers a buffer for a read operation. Actual transfer will happen in the Task function.
DRV_SPI_BufferAddWrite2 Registers a buffer for a write operation. Actual transfer will happen in the Task function.
DRV_SPI_BufferAddWriteRead2 Registers a buffer for a read and write operation. Actual transfer will happen in the Task function.
DRV_SPIn_ReceiverBufferIsFull Returns the receive buffer status. 'n' represents the instance of the SPI driver used.
DRV_SPIn_TransmitterBufferIsFull Returns the transmit buffer status. 'n' represents the instance of the SPI driver used.

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