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,