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Hello everyone,

      Recently i started using MATLAB Real Time Code Generation Tool to generate code for 3 phase Induction motor speed control using V/F. I used the piccolo launchpad F28027 to implement this V/F technique. I used a pot to get the frequency input and computed the corresponding Voltage using V/F ratio. When i tried implement it on the board, output PWM frequency was not exactly the same which i simulated. It was 2 - 3 times higher than the actual. So i tried reducing the inputs by the same 2-3 times. It worked. 
       Question is, what the problem with the code and processor?  why difference in PWM frequency between simulation and Realtime?