Does anyone know of a simple simulink diagram that achieves a function but can be drawn two different ways?

I'm trying to show that a function (i.e. 2+2=4) can be achieved multiple ways and that the code that is generated by that function is different and can be larger than normal. One diagram will produce more code than the other but achieve the same function. Does anyone have such an example? Thanks.

Answer 1

[Ning Zhang]

Hi Rick,

It seems that you want to do a demo on different generated code with different models.

In terms of drawing different simulation model schematics:

1. You can use function blocks "constant" "add", etc.
2. Interpreted MATLAB Function: http://www.mathworks.com/help/simulink/slref/interpretedmatlabfunction.html?searchHighlight=MATLAB%20Interpreted%20Function%20Block
3. MATLAB Function Block: http://www.mathworks.com/help/simulink/ug/creating-an-example-model-that-uses-a-matlab-function-block.html

However, the generated codes are hard to be compared for the above three approaches. This is because the mechanisms of code generation are different.

If you want to demonstrate the efficiency of generated code using the same Simulink model, check the following link for code optimization: http://www.mathworks.com/help/ecoder/techniques-for-code-optimizations.html?searchHighlight=Generate%20Code%20with%20Optimization Look at the session "Optimization Parameters for Code Generation" particularly.

Answer 2

[Walter Roberson]

Version 1: use arithmetic blocks to calculate 2 + 2 + 2 + 2 + 2 + 2 + 2 + 2 + 2 + 2 + 2 + 2 + 2 + 2 + 2 + 2

Version 2: use arithmetic blocks to calculate 2 * 2 * 2 * 2

Version 3: use an arithmetic block to calculate 2^4