DLN_I2C_SLAVE_LOAD_REPLY Command and Response

The DLN_I2C_SLAVE_LOAD_REPLY Command is used to load information to be transferred to an I2C-master device.

DLN_I2C_SLAVE_LOAD_REPLY Command

 typedef struct
 {
    DLN_MSG_HEADER header;
    uint8_t port;
    uint16_t size;
    uint8_t buffer[DLN_I2C_SLAVE_BUFFER_SIZE];
 } __PACKED_ATTR DLN_I2C_SLAVE_LOAD_REPLY_CMD;

Parameters:

header

Defines the DLN message header DLN_MSG_HEADER. The header contains several predefined fields and is used to identify and route messages. You must fill the following fields before sending the command:

Field	Description
size	The size of the message. Must be equal to the size of the DLN_I2C_SLAVE_LOAD_REPLY_CMD structure.
msgId	Identifies the message. For the DLN_I2C_SLAVE_LOAD_REPLY command it must be set to 0x0C0A. You can use the DLN_MSG_ID_I2C_SLAVE_LOAD_REPLY constant.
echoCounter	Can be used to link a command to a response. The response will have the same echoCounter value. This field can be any numerical value from 0 to 0xFFFF (65536).
handle	A handle to the DLN-series adapter.

port

A number of the I2C slave port to be used.

size

A size of the message buffer. This parameter is specified in bytes. The value must fall within the range of 1 to 256 bytes.

buffer

A 256-element array. Each of the elements is an 8-bit value. The buffer must contain the information to be sent to the I2C master.

DLN_I2C_SLAVE_LOAD_REPLY Response

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The adapter sends the DLN_I2C_SLAVE_LOAD_REPLY response after the DLN_I2C_SLAVE_LOAD_REPLY command execution. The response informs a user if the data to be sent to an I2C master were successfully loaded.

 typedef struct
 {
    DLN_MSG_HEADER header;
    DLN_RESULT result;
 } __PACKED_ATTR DLN_I2С_SLAVE_LOAD_REPLY_RSP;

Parameters:

header

Defines the DLN message header DLN_MSG_HEADER. The response header contains the following fields:

Field	Description
size	The size of the message. It is equal to the size of the DLN_I2C_SLAVE_LOAD_REPLY_RSP structure.
msgId	Contains the message id. For the DLN_I2C_SLAVE_LOAD_REPLY response it is set to 0x0C0A. The DLN_MSG_ID_I2C_SLAVE_LOAD_REPLY constant can be used to check the message ID.
echoCounter	Links a command to a response. The echoCounter value is copied from the respective command header.
handle	A handle to the DLN-series adapter. You can use the handle field to determine the adapter that have sent the response.

result

Contains the result of the command execution. For DLN_I2C_SLAVE_LOAD_REPLY command DLN-series adapter can return the following result values:

Return Code	Description
DLN_RES_SUCCESS	The information has been successfully loaded.

DLN_I2C_SLAVE_LOAD_REPLY Command and Response