AN1105 STMicroelectronics, AN1105 Datasheet - Page 49

• Manufacturer Part Number: AN1105
• Description: ST7 PCAN PERIPHERAL DRIVER
• Manufacturer: STMicroelectronics

3.2.2.7 static CAN_Transmit_Error CAN_Fill_Transmission_Buffer()
Figure 24. CAN_Fill_Transmission_Buffer Flowchart
INPUT
OUTPUT
DESCRIPTION
COMMENTS
CAN_TRANSMIT_BUFFER_FULL
CAN_TRANSMIT_SUCCESS
CAN_TRANSMIT_NO_MSG
Selects buffer 1
Begin
--
Error status
Fills the hardware buffer for transmission.
Possible return values: CAN_TRANSMIT_BUFFER_FULL,
CAN_TRANSMIT_NO_MSG and CAN_TRANSMIT_SUCCESS
ITs have to be disabled
Called by CAN_Transmit_Request
Calls CAN_Out_Queue
Returns
Returns
Returns
RDY=1
Y
N
ST7 pCAN PERIPHERAL DRIVER
N
message.buffer_rw=CFALSE
Fill the hardware buffer
CAN_Out_Queue()
Message exists
i.e. not NULL
Y
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