ADLINK PCI-7841/cPCI-7841 - Manual (Page 36)

28 Function Reference
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CanClearOverrun(handle);
CanCloseDriver(handle);
CanClearRxBuffer()
Purpose Clear data in the receive buffer
Prototype C/C++
void CanClearRxBuffer(int handle)
Parameters handle : handle retrieve from CanOpen-
Driver()
Return Value none
Remarks Clear the data in the receive buffer
There are 2-type of buffer defined in the
driver. First one is the FIFO in the card, the
second one is the memory space inside the
driver. Both of them would be cleared after
using this function.
See Also CanRcvMsg()
Usage C/C++
#include “pci7841.h
int handle = CanOpenDriver(0, 0);//open the port
0 of card 0
….
CanClearRxBuffer(handle);
CanCloseDriver(handle);
CanClearTxBuffer()
Purpose Clear Transmit Buffer
Prototype C/C++
void CanClearTxBuffer(int handle)
Parameters handle : handle retrieve from CanOpen-
Driver()
Return Value none
Remarks Clear the data in the transmit buffer.
Under a busy DeviceNet Network, your
transmit request may not be done due to
the busy in the network. The hardware will
send it automatically when bus is free. The