Allowing no more than 1 invocation of a simulink block (that does I/O) in a model.

   Hello,
I created an embedded target for the stm32f4 discovery board.
It has several blocks that control I/O devices, e.g. reading an ADC.
There often should be no more than 1 invocation of such a block in a model.

The question is, how can enforce this. E.g. that an error is displayed if i try to put a second block in the model. Maybe some trickery with callback functions? Or is there a better way to do this.

Thanks in advance,
     Sietse

Answer 1

[A Jenkins]

Make that block its own model. Reference the block from your top level model. Then set the "Total number of instances allowed per top model" of your I/O block.