MATLAB XPC TARGET 4 - DEVICE DRIVERS Spezifikationen PDF herunterladen (Seite 149)

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Introduction

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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.

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