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CCS/CODECOMPOSER: CCS Instaspin lab5a motor current graph

Andrew Joerger
Prodigy 160 points

Part Number: CODECOMPOSER

Tool/software: Code Composer Studio

Hello,

On page 101 (lab 5a) somehow a motor current waveform is obtained.

1) How did they obtain a graph of this motor current? It looks like its on an oscilloscope, but I've read you can use CCS to implement a virtual oscilloscope. How can I replicate this?

2) I thought this was a graph of the variables Id_A, Iq_A, and Is_A but it doesn't seem to be. What do these variables represent? I did an F5 search in the user's manual but couldn't find these variables.

  • 0
    TI__Guru** 117080 points
    1. You are right, the waveform was got from the oscilloscope. You could use the CCS graph tool to implement it which must call the Datalog function, please refer to lab1b to look at how to use the datalog and graph tool.
    2. It's the phase current of motor, not Id, Iq or Is. You have to use pamdac or datalog to show these 3 varaibles, please refer to lab1b or lab1c also.