DLN_ADC_GET_CHANNEL_COUNT Command and Response

The DLN_ADC_GET_CHANNEL_COUNT command is used to retrieve the number of ADC channels, available in the specified ADC-port of your DLN-series adapter.

DLN_ADC_GET_CHANNEL_COUNT Command

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 typedef struct
 {
    DLN_MSG_HEADER header;
    uint8_t port;                
 } __PACKED_ATTR DLN_ADC_GET_CHANNEL_COUNT_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_ADC_GET_CHANNEL_COUNT_CMD structure.
msgId	Identifies the message. For the DLN_ADC_GET_CHANNEL_COUNT command it must be set to 0x0601. You can use the DLN_MSG_ID_ADC_GET_CHANNEL_COUNT 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 ADC port to retrieve the number of channels from.

DLN_ADC_GET_CHANNEL_COUNT Response

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The adapter sends the DLN_ADC_GET_CHANNEL_COUNT response after the DLN_ADC_GET_CHANNEL_COUNT command execution. The response contains the available number of channels in the specified ADC port of your DLN-series adapter.

 typedef struct
 {
    DLN_MSG_HEADER header;
    DLN_RESULT result;
    uint8_t count;
 } __PACKED_ATTR DLN_ADC_GET_CHANNEL_COUNT_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_ADC_GET_CHANNEL_COUNT_RSP structure.
msgId	Contains the message id. For the DLN_ADC_GET_CHANNEL_COUNT response it is set to 0x0601. The DLN_MSG_ID_ADC_GET_CHANNEL_COUNT 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_ADC_GET_CHANNEL_COUNT command DLN-series adapter can return the following result values:

Return Code	Description
DLN_RES_SUCCESS	Available number of ADC channels has been successfully obtained.

count

Contains the available number of channels in the specified ADC port of the DLN-series adapter.

DLN_ADC_GET_CHANNEL_COUNT Command and Response