cascading mux blocks syntax help needed
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In simulink I have a mux block leading into the first signal of a second mux block which leads into a function block. In the function block, what is the syntax to reference one of the signals from the first mux block? Currently I have u[1[3]].
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Sebastian Castro
2017-4-20
编辑：Sebastian Castro
2017-4-20
0 个投票
Two issues here:
- If you look at the example syntax right above where you typed, you need to use MATLAB-style indexing with parentheses. So you want u(1) instead of u[1], for instance.
- Simulink muxes do not implement "nesting"; instead, they stack all signals vertically. In your example, the output of the second Mux should simply be a 4-element array.
By the way, if all you want to do with that Fcn block is extract individual elements of a multidimensional signal, you can also use the Selector block.
Sebastian
3 个评论
Kelsey Thompson
2017-4-20
Sebastian Castro
2017-4-20
Did you try that, and did it work?
I think the corrected statement would be u(4)*u(3), since -- as I mentioned -- muxes don't nest but rather stack things into one big vector.
Again, there's no harm in trying this out yourself and seeing what works :)
Kelsey Thompson
2017-4-20
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