I2C Master Functions

Use the I²C Master Interface functions to control and monitor the I²C Master module of a DLN-series adapter. The dln_i2c_master.h file declares the I²C Master Interface functions.

General port information:

DlnI2cMasterGetPortCount()

Retrieves the total number of I²C master ports available at your DLN-series adapter.

DlnI2cMasterEnable()

Assigns a port to the I²C Master module.

DlnI2cMasterDisable()

Releases a port from the I²C Master module.

DlnI2cMasterIsEnabled()

Retrieves whether a port is assigned to the I²C Master module.

DlnI2cMasterScanDevices()

Scans all slave addresses searching for connected I²C slave devices.

I²C Master module configuration functions:

DlnI2cMasterSetFrequency()

Configures frequency for the specified I²C master port.

DlnI2cMasterGetFrequency()

Retrieves frequency configuration for an I²C Master port.

DlnI2cMasterSetMaxReplyCount()

Configures the maximum reply count for an I²C master port.

DlnI2cMasterGetMaxReplyCount()

Retrieves the maximum reply count configuration.

Transmission functions:

DlnI2cMasterRead()

Receives data from the specified slave. Internal address can be specified.

DlnI2cMasterWrite()

Sends data to the specified slave. Internal address can be specified.

DlnI2cMasterTransfer()

Sends data to the specified slave, then reads data from the same slave (only DLN-1 and DLN-2 adapters support this function).