2.3 Simulation and validation

When the analysis and code generation are successfully concluded, the simulation can be

launched (Simulate menu). This allows the application to be simulated and for the signals to be

monitored directly on the graphical description, without having to build hardware for debugging.

The use of the numeric adjuster on the inputs, and numeric probes makes the validation of the

application very convivial. By activating the input adjuster from 0 to 255 (the 8-bit A/D

conversion result) any subtraction situation can be checked with its impact on the output.

Figure 3 represents such a case where an input value of 110 is compared to the reference

value of 127, resulting in a difference of -17 which produces the oscillation at the relevant

output pin.

Figure 3: Simulation Results In The St6-Realizer Environment

It is possible to get information through the Run menu about the maximum time taken by the

MCU to perform all the operations described in the application. This fixes the minimum time

required between an input change and its impact on outputs, and thus the frequency response

of the application. In the present case the maximum time is 630µs for a 8Mhz oscillator.

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