Specifications

Introduction
5-5
messages to be processed and the number of total messages going over the
network is high.
Especially for monitor type of applications the FIFO mode drivers are well
suited, because the FIFO mode can return additional information like the bus
state or the reception of error frames. The Dynamic Object Buffer mode drivers
do not allow querying such information.
This documentation only covers the differences between the Dynamic Object
Buffer mode drivers (which are the standard drivers), and the FIFO mode
drivers introduced here. It is assumed that you are familiar with the Dynamic
Object Buffer mode drivers and have successfully run one of the loop-back tests
provided with xPC Target.
If you use the FIFO mode drivers in your model, you have to replace all
Dynamic Object Buffer mode blocks (Setup, Send, Receive) by FIFO mode
driver blocks. The CAN-AC2-xxx boards from Softing do not allow to run the
two CAN ports in different modes. Therefore the mode has to be same for both
ports, but you can use more than one CAN board and run the boards in
different modes just by selecting the correct I/O driver blocks.
As mentioned in the standard CAN chapter we do not recommend using the
CAN-AC2 (ISA) for any new projects. Instead use the CAN-AC2-PCI. As a
consequence FIFO mode drivers are only provided for the CAN-AC2-PCI and
the CAN-AC2-104 boards.