DlnSpiFlashSetSSMask() Function

The DlnSpiFlashSetSSMask() function selects a required Slave Select (SS) lines by using mask value.

Syntax

C/C++

DLN_RESULT DlnSpiFlashSetSSMask(
  HDLN handle, 
  uint8_t port, 
  uint8_t ssMask
);

Parameters

handle: A handle to the DLN-series adapter.
port: A number of the SPI flash port.
ssMask: The mask value to set the SS lines. The bits 4-7 are reserved and must be set to 1.

If you expect slaves to output data, you must ensure that only one slave is activated. If several slaves start outputting data simultaneously, the equipment can be damaged.

Return Value

DLN_RES_SUCCESS (0x00): The function successfully selected SS lines.
DLN_RES_INVALID_PORT_NUMBER (0xA8): The port number is not valid. Use the DlnSpiFlashGetPortCount() function to find the maximum possible port number.

Remarks

The DlnSpiFlashSetSSMask() function is defined in dln_spi_flash.h file.

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