How to define Repeating Sequence Stairs block in Simulink?

Hi,

I was using the repating sequence stairs block a while ago and I had no problem. But after I change my software version I am not able to use the repeating sequence. I do not remember how did I solve before. I just want to create position points in Simulink then I will create a trajectory between stairs.

I got the following error when using the block:

Invalid setting in Repeating Sequence Stair/LimitedCounter/Data Type Propagation' for parameter '(sort(reshape(round(NumBitsAllowFinal), prod(size(NumBitsAllowFinal)),1)))'.

Caused by:

Error evaluating parameter '(sort(reshape(round(NumBitsAllowFinal), prod(size(NumBitsAllowFinal)),1)))' in Repeating Sequence Stair/LimitedCounter/Data Type Propagation'

index exceeds matrix dimensions.

Answer 1

[Austin]

So, I just ran into this same issue today and was able to resolve it just by clearing out my workspace, closing, then reopening the file.

In my specific case, I had defined a variable named size and had given it as an array. This caused Simulink to become confused because that Repeating Sequence Stair block uses a function named size.

For whatever reason, this Simulink block was pulling from the base workspace my own variable and trying to interpret it has a function. This was extremely frustrating. I can't think of any other platform that would not have their own internal variables/functions scoped outside of the global base workspace. Why anyone would design a software platform like this is beyond my comprehension.