AN1105 STMicroelectronics, AN1105 Datasheet - Page 50

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

ST7 pCAN PERIPHERAL DRIVER
3.2.2.8
CAN_Recept_Buffer* dest_ptr)
Figure 25. CAN_Store_Rcvd_Msg Flowchart
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INPUT
OUTPUT
DESCRIPTION
COMMENTS
static
CAN_ILLEGAL_IDENTIFIER
CAN_RECEIVE_SUCCESS
Number of the hardware buffer to release, pointer to the buffer where the data must
be saved
Error status
Fetches data received in a hardware buffer.
Possible return values: CAN_ILLEGAL_IDENTIFIER and
CAN_RECEIVE_SUCCESS
ITs have to be disabled.
This function is called by CAN_Reception, only in case of reception of data.
The priority was given to SPEED here, that‘ s why the code may look strange.
CAN_Receive_Error
Returns
Returns
Begin
CAN_Store_Rcvd_Msg(u8
N
buffer, therefore clearing
Releases the hardware
Retrieves data length
the software buffer
Legal value
Saves data in
the IT flag
i.e. <9
num_buff_hard,
Y