AN1105 datasheet(48/100 Pages) STMICROELECTRONICS

номер детали	AN1105

подробное описание детали	ST7 pCAN PERIPHERAL DRIVER

PDF	100 Pages

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производитель	STMICROELECTRONICS [STMicroelectronics]

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ST7 pCAN PERIPHERAL DRIVER

3.2.2.5 static CAN_Message* CAN_Out_Queue (void)

The algorithm is exactly the same as for CAN_In_Queue().

3.2.2.6 static CAN_Clean_Error CAN_Clean (void)

Figure 23. CAN_Clean Flowchart

INPUT

OUTPUT

Pointer to a CAN message

DESCRIPTION

Returns a pointer to the first message in the transmission queue and updates the

queue parameters

COMMENTS

Must not be interrupted

Called by CAN_Fill_Transmission_Buffer

INPUT

OUTPUT

Error status

DESCRIPTION

Cleans the reception and transmission buffers, and resets the transmission queue in

the first initialization state.

Only affects pointers

Possible return values: CAN_CLEAN_FAILURE, CAN_CLEAN_SUCCESS and

CAN_CLEAN_FATAL

COMMENTS

Must be called only in Sleep mode (run bit reset)

Must not be interrupted

Called by CAN_Sleep and CAN_Switch_Off

Begin

RUN=1

Queue in use

Returns

CAN_CLEAN_FATAL

Returns

CAN_CLEAN_FAILURE

Returns

CAN_CLEAN_SUCCESS

Locks queue

Reinitializes queue

Clears all pending jobs

Clears all pending ITs

Unlocks queue

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