MATLAB XPC TARGET 4 - DEVICE DRIVERS Spécifications télécharger pdf (Page 188)

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101

5 CAN I/O Support for FIFO

5-44

This implementation behaves exactly like the first implementation, but nicely

shows how CAN messages (to be sent out) can be constructed dynamically at

run-time.

Example 4

Now lets look at the situation where the Read depth parameter of the FIFO

Read block in the model above is set to 1 instead of 2 or 3. This leads to a receive

FIFO overflow when the execution time reaches 256 ms. Here, as an example,

the execution should be stopped, if the overflow occurs. This can be easily

achieved by evaluating the lost message counter value leaving the status

output port of the FIFO Read block. You can display the model by typing, in the

MATLAB command window, either xpccanpcififo4.mdl or xpccan104fifo4.mdl.

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