Unrecognized function or variable 'uu'. Error in 'TBSv1/desired trajectory' while evaluating expression.
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I have a block taking input as only time, but the error keeps poping up,
- Unrecognized function or variable 'uu'.
- Error in 'TBSv1/desired trajectory' while evaluating expression.
How to solve this error? My code works fine if i use Matlab function instead of integrated matlab function.
here is the code in the block for reference
function out=DesiredTrajectory(uu,P)
t=uu;
ytraj= [8;8;20];
ydottraj= [0;0;0];
yddottraj= [0;0;0];
out=[...
ytraj;...
ydottraj;...
yddottraj];
5 个评论
Walter Roberson
2020-6-18
Your MATLAB Function Block in Simulink does not have at least one input signal.
Twinkle Patel
2020-6-19
Walter Roberson
2020-6-19
What is the other input, P ?
Is it correct that your actual code ignores t after setting it, and ignores P, and always emits that 9 x 1 matrix?
Twinkle Patel
2020-6-19
Walter Roberson
2020-6-19
Please attach your model for testing.
回答（1 个）
Mara
2020-6-18
0 个投票
If you call this function, you need two inputs inside the bracket:
out = DesiredTrajectory(uu, P)
It sounds to me like you might have uu in your workspace, so the code runs fine when you evaluate the selection. But when you call a function, it does not have access to that. It only has access to the variables that you give it as an input, in this case uu and P.
Maybe try to check it. Put a breakpoint at the line t = uu and see if uu appears in the workspace.
Hope I could help!
3 个评论
Twinkle Patel
2020-6-18
Mara
2020-6-18
Alright, I am sorry but I cannot help you with this. As far as I understood, the problem is not the function but the code from where you call it. I wish you good luck
Twinkle Patel
2020-6-19
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2020-6-18
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