MESSAGE (STRUCT) ¶ TYPE MESSAGE : STRUCT This structure defines a CANL2 message. Only use this structure if you are using unmanaged CANL2 functions (functions with underscore). For unmanaged CL2 functions the returned handle hMsg can be interpreted as a pointer to this structure because no resource manager is involved. For interpreting the structure members use the bit masks defined in MASKS . InOut: Name Type Comment cobId COBID Contains CANID and Tx/RTR/Extended Identifier bit. Use appropriate bit masks defined in MASKS for calculating the correct value. abyData DATA Data array of CAN message. dwTSP DWORD Receive message: Rx timestamp (set by driver, if supported); Transmit message: time to live. After this time the message will be discarded by the driver (if supported). byLen BYTE Contains DLC. Use bit mask MASKS.gcbyDLCMask for calculating the message length. byNet BYTE CAN Network ID this messages belongs to (do not change!).

Types ¶ COBID (Alias) DATA (Alias)

COBID (ALIAS) ¶ TYPE COBID : UDINT Defines a CAN ID

DATA (ALIAS) ¶ TYPE DATA : ARRAY[0..7] OF USINT Defines the data array of a CAN message.

GetReceivePoolSize (FUN) ¶ FUNCTION GetReceivePoolSize : CAA.COUNT Returns the number of free receive messages in global receive pool. Should be greater 0. Otherwise no more messages can be received. Diagnostic Information can be also read by GetDiagnosis . InOut: Scope Name Type Comment Return GetReceivePoolSize CAA.COUNT number of free receive messages in global receive pool Input hDriver CAA.HANDLE handle of CAN interface peError POINTER TO ERROR optional pointer to error enum

GetReceiveQueueLength (FUN) ¶ FUNCTION GetReceiveQueueLength : CAA.COUNT Returns the number of messages in receive queue waiting for being processed by application or stack. Diagnostic Information can be also read by GetDiagnosis . InOut: Scope Name Type Comment Return GetReceiveQueueLength CAA.COUNT number of messages in receive queue Input hDriver CAA.HANDLE handle of CAN interface peError POINTER TO ERROR optional pointer to error enum

GetTransmitCounter (FUN) ¶ FUNCTION GetTransmitCounter : CAA.COUNT Returns a counter which is incremented with each sent message. Diagnostic Information can be also read by GetDiagnosis . InOut: Scope Name Type Comment Return GetTransmitCounter CAA.COUNT number of sent messages Input hDriver CAA.HANDLE handle of CAN interface peError POINTER TO ERROR optional pointer to error enum

GetTransmitErrorCounter (FUN) ¶ FUNCTION GetTransmitErrorCounter : CAA.COUNT Returns a counter which is incremented with each transmit error. Diagnostic Information can be also read by GetDiagnosis . InOut: Scope Name Type Comment Return GetTransmitErrorCounter CAA.COUNT number of transmit errors Input hDriver CAA.HANDLE handle of CAN interface peError POINTER TO ERROR optional pointer to error enum

GetTransmitPoolSize (FUN) ¶ FUNCTION GetTransmitPoolSize : CAA.COUNT Returns the number of free transmit messages in the transmit message pool of the current driver. Should be greater 0. Otherwise no more messages can be sent. Diagnostic Information can be also read by GetDiagnosis . InOut: Scope Name Type Comment Return GetTransmitPoolSize CAA.COUNT number of free transmit messages in transmit pool. Input hDriver CAA.HANDLE handle of CAN interface peError POINTER TO ERROR optional pointer to error enum

GetTransmitQueueLength (FUN) ¶ FUNCTION GetTransmitQueueLength : CAA.COUNT Returns number of messages in transmit queue waiting for being processed by CAN Minidriver. Diagnostic Information can be also read by GetDiagnosis . InOut: Scope Name Type Comment Return GetTransmitQueueLength CAA.COUNT number of messages in transmit queue. Input hDriver CAA.HANDLE handle of CAN interface peError POINTER TO ERROR optional pointer to error enum