DlnI2cSlaveSetEvent() Function

The DlnI2cSlaveSetEvent() function configures the I²C slave events generation conditions for the specified I²C slave port and I²C slave address.I²C slave events can vary for different I²C slave addresses. Specify the number of the I²C slave address in the slaveAddressNumber parameter.

Syntax

C/C++

DLN_RESULT DlnI2cSlaveSetEvent(
   HDLN handle,
   uint8_t port,
   uint8_t slaveAddressNumber,
   uint8_t eventType,
);

Parameters

handle

A handle to the DLN-series adapter.

port

A number of the I²C slave port.

slaveAddressNumber

A number of the I²C slave address. The slaveAddressNumber parameter is zero base. Possible value are from zero up to (but not including) the value returned by the DlnI2cSlaveGetAddressCount() function.

eventType

A condition for I²C slave event generation. The following values are available:

I2C_SLAVE_EVENT_NONE (0) - No I²C slave events are generated.
I2C_SLAVE_EVENT_READ (1) - I²C slave events are generated when an I²C master device reads data from the PC-I2C adapter.
I2C_SLAVE_EVENT_WRITE (2) - I²C slave events are generated when an I²C master device writes data to the PC-I²C adapter.
I2C_SLAVE_EVENT_READ_WRITE (3) - I²C slave events are generated both for read and write transactions.

For additional details, read the I2C Slave Events section.

Return Value

DLN_RES_SUCCESS (0x00): The function successfully configured I²C slave events.
DLN_RES_INVALID_PORT_NUMBER (0xA8): The port number is not valid. Use the DlnI2cSlaveGetPortCount() function to find the maximum possible port number.
DLN_RES_BUSY (0xB6): The function cannot configure I²C slave addresses for the DLN adapter while the I²C slave port is busy transmitting data.
DLN_RES_INVALID_EVENT_TYPE (0xA9): The specified event type is not valid. Use the DlnI2cSlaveGetSupportedEventTypes() function to check the list of supported I²C slave events.

Remarks

The DlnI2cSlaveSetEvent() function is defined in the dln_i2c_slave.h file.

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