DlnSpiMasterSSBetweenFramesIsEnabled() Function

The DlnSpiMasterSSBetweenFramesIsEnabled() function checks whether the DLN-series adapter releases SS line between successive SPI frames transmission.

Syntax

C/C++

DLN_RESULT DlnSpiMasterSSBetweenFramesIsEnabled(
   HDLN handle,
   uint8_t port,
   uint8_t* enabled
);

Parameters

handle

A handle to the DLN-series adapter.

port

A number of the selected SPI master port.

enabled

A pointer to an unsigned 8-bit integer that receives information whether release of an SS line is enabled. The following values are available:

1 or DLN_SPI_MASTER_SS_BETWEEN_TRANSFERS_ENABLED - the SS line release is enabled.
0 or DLN_SPI_MASTER_SS_BETWEEN_TRANSFERS_DISABLED - the SS line release is disabled.

Return Value

DLN_RES_SUCCESS (0x00): The function successfully retrieves information about the release of the SS line.
DLN_RES_INVALID_PORT_NUMBER (0xA8): The port number is not valid. Use the DlnSpiMasterGetPortCount() [1] function to find the maximum possible port number.

Remarks

DLN-1 and DLN-2 adapters do not support releasing the slave select line between frames.

The DlnSpiMasterSSBetweenFramesIsEnabled() function is defined in dln_spi_master.h file.