DLN_PWM_SET_DUTY_CYCLE Command and Response

The DLN_PWM_SET_DUTY_CYCLE command is used to set a PWM duty cycle, which is the ratio of the high time to the PWM period.

DLN_PWM_SET_DUTY_CYCLE Command

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 typedef struct
 {
    DLN_MSG_HEADER header;
    uint8_t port;
    uint8_t channel;
    uint16_t bsDutyCycle;
 } __PACKED_ATTR DLN_PWM_SET_DUTY_CYCLE_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_PWM_SET_DUTY_CYCLE_CMD structure.
msgId	Identifies the message. For the DLN_PWM_SET_DUTY_CYCLE command it must be set to 0x070A. You can use the DLN_MSG_ID_PWM_SET_DUTY_CYCLE 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 PWM port to set the duty cycle for.

channel

A number of the PWM channel to set the duty cycle for.

bsDutyCycle

The duty cycle to be set. This is a basis point parameter.

DLN_PWM_SET_DUTY_CYCLE Response

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The adapter sends the DLN_PWM_SET_DUTY_CYCLE response after the DLN_PWM_SET_DUTY_CYCLE command execution. The result field informs a user if the new duty cycle has been successfully set. Also, the response contains actual duty cycle value, in case the one specified by a user is not supported by the DLN-series adapter.

typedef struct
 {
    DLN_MSG_HEADER header;
    DLN_RESULT result;
    uint16_t bsDutyCycle;
 } __PACKED_ATTR DLN_PWM_SET_DUTY_CYCLE_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_PWM_SET_DUTY_CYCLE_RSP structure.
msgId	Contains the message id. For the DLN_PWM_SET_DUTY_CYCLE response it is set to 0x070A. The DLN_MSG_ID_PWM_SET_DUTY_CYCLE 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_PWM_SET_DUTY_CYCLE command DLN-series adapter can return the following result values:

Return Code	Description
DLN_RES_SUCCESS	The new PWM duty cycle has been successfully set.

bsDutyCycle

Actually set duty cycle. This is a basis point parameter.

DLN_PWM_SET_DUTY_CYCLE Command and Response