3.4.2.6 SwTimerStart

Definition: This function starts a regular timer and installs the corresponding callback function handling the timeout event.

Syntax

StackRetStatus_t SwTimerStart(uint8_t timerId, uint32_t timerCount,
SwTimeoutType_t timeoutType, void *timerCb, void *paramCb);

Input Parameters

Table 3-37. Input Parameters
Parameter Name	Parameter Type	Description
timerId	uint8_t	Timer identifier
timerCount	uint32_t	Timeout in microseconds
timeoutType	SwTimeoutType_t	SW_TIMEOUT_RELATIVE – The timeout is relative to the current time SW_TIMEOUT_ABSOLUTE – The timeout is an absolute value
timerCb	Void pointer	Callback handler invoked upon timer expiry
paramCb	Void pointer	Argument for the callback handler

Return Type and Values

Table 3-38. Return Type
Parameters Name	Parameter Type	Description
StackRetStatus_t	ENUM	List of enumerated values for return Status

Table 3-39. Return Values
Return Value	Reason
LORAWAN_SUCCESS	Timer is started successfully
LORAWAN_INVALID_REQUEST	Timer is already running
LORAWAN_INVALID_PARAMETER	Timer ID, timeout type or timeout value is wrong

API Type – Synchronous