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TMS320F28388D: The program stuck in _IQ16sqrt and _IQ16sin

Yale Li 李耀先
Expert 4660 points
Part Number: TMS320F28388D


Hi Team,

My customer use IQMATH in his project. He add these two functions to ePWM ISR.

The program work normally during debug. And stuck in these two functions after he loaded the program to FLASH. Because the toggle LED operation in main function is not operated. 

Then he delete these two functions and program works normally.

--

Thanks & Regards

Yale

  • +1
    TI__Mastermind 26915 points

    Yale,

    I have seen this exact issue occur with another customer in the past. In their case, the IQMath library as well as the IQMathTables were resident in RAM, which were lost on Power cycle. Can you check if the same thing is occurring here?

    Why are they setting MATH_TYPE = IQ_MATH and not FLOAT_MATH even with a floating point device?

    Thanks,

    Sira