ST STM32F2 User Manual page 115

UM1940
__HAL_CAN_MSG_PENDING
__HAL_CAN_GET_FLAG
Description:
Return the number of pending received
messages.
Parameters:
__HANDLE__: CAN handle
__FIFONUMBER__: Receive FIFO
number, CAN_FIFO0 or CAN_FIFO1.
Return value:
The: number of pending message.
Description:
Check whether the specified CAN flag is
set or not.
Parameters:
__HANDLE__: CAN Handle
__FLAG__: specifies the flag to check.
This parameter can be one of the following
values:
DocID028236 Rev 2
HAL CAN Generic Driver
CAN_TSR_RQCP0: Request
MailBox0 Flag
CAN_TSR_RQCP1: Request
MailBox1 Flag
CAN_TSR_RQCP2: Request
MailBox2 Flag
CAN_FLAG_TXOK0: Transmission
OK MailBox0 Flag
CAN_FLAG_TXOK1: Transmission
OK MailBox1 Flag
CAN_FLAG_TXOK2: Transmission
OK MailBox2 Flag
CAN_FLAG_TME0: Transmit mailbox
0 empty Flag
CAN_FLAG_TME1: Transmit mailbox
1 empty Flag
CAN_FLAG_TME2: Transmit mailbox
2 empty Flag
CAN_FLAG_FMP0: FIFO 0 Message
Pending Flag
CAN_FLAG_FF0: FIFO 0 Full Flag
CAN_FLAG_FOV0: FIFO 0 Overrun
Flag
CAN_FLAG_FMP1: FIFO 1 Message
Pending Flag
CAN_FLAG_FF1: FIFO 1 Full Flag
CAN_FLAG_FOV1: FIFO 1 Overrun
Flag
CAN_FLAG_WKU: Wake up Flag
CAN_FLAG_SLAK: Sleep
acknowledge Flag
CAN_FLAG_SLAKI: Sleep
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