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TMS320F28P650DK: Internal Temperature Sensor: Temperature calculation in CPU2 is incorrect

Part Number: TMS320F28P650DK

Hi experts,

I used ADC_getTemperatureC() function in CPU2 to calculate the internal temperature, and found the result was incorrect. This function uses the offset and slope parameters stored in the TI OTP area, but I found that the contents of the TI OTP can only be read by CPU1, and CPU2 can read all zeros.

Is the TI OTP area only accessible by CPU1? If so, does that mean I need to pass these parameters to CPU2 in some other way before I can do the temperature calculation in CPU2?

Regards,

Shwan