Hi,
Currently, I am using MATLAB 2014a Simulink version. I want to generate PWM pulses for a switch. I am using repeating sequence generator and sinusoidal signal from sources library. Both are from simulink blocks category only. When I run the program.. following error appears..
"Values of BreakpointsForDimension1 in 'pv1/Repeating Sequence/Look-Up Table1' must be monotonically increasing. The problem occurs at the number 3 breakpoint. Please change the breakpoint data or use the fixedpoint tools such as Auto Scaling or Fixed-Point Advisor to determine a different parameter dialog type'.
same simulink file worked well in MATLAB 2012b version. I tried different suggestions, but did not work. Give me some suggestions regarding this.
Thank you.
After so much struggle i found solution for this problem. I am writing here because it may help some other person..
1. Repeating Sequence block is a masked subsystem block having the Lookup 1-d block underneath it in MATLAB R2013b and before. In current releases, the 1-d block is replaced by the new n-D Lookup table block. The n-D lookup table block only accepts strictly monotonic values.
2. A workaround to this issue can be to change it to [0 0.00002 0.00002+eps].
'eps' is the smallest floating-point number that can be recognized by MATLAB. Its value is 2^(-52).
If you change the value to [0 0.00002 0.00002+eps] in repeating sequence generator. can find that the error is not occurring
I also found the same issue .thanx a lot for the solution just relieved from the same issue.
hello,Sreekanth Rtg!
I meet the problem recently and I couldn't understand your solution. Could you please tell me which parameter in repeating sequence generator should be set as [0 0.00002 0.00002+eps]. My MATLAB edition is R2015a, and I can only set two parameters in repeating sequence generator, they are Time values and Output values. I think neither of the two parameters should be set as [0 0.00002 0.00002+eps]. Can you describe you solution detaily.
Thank you!
In a sawtooth waveform /|/|/| like this falling from high value to low value takes place instantly. So if you set Time values like [0 0.00002 0.00002] and output values like [0 1 0]. matlab will give error. So change Time values to [0 0.00002 0.00002+eps] and keep output values same. Now error will not arise.
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