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CCS/TMS320F280049M: Internal temperature sensor ADC to temperature

Jozef Sedivy
Intellectual 320 points
Part Number: TMS320F280049M
Other Parts Discussed in Thread: C2000WARE

Tool/software: Code Composer Studio

Hello,

I would like to ask, how to convert ADC value measured from internal temperature sensor to temperature in °C or K.  
I never found any characteristic. In technical reference manual are mentioned functions Device_cal();  getTempSlope();  getTempOffset();  getTemperatureC(int16 sensorSample); but I don't know how to use them. Better said compiler reports unresolved symbol _getTempSlope() etc.  

  • 0
    TI__Guru 60865 points
    Hi Jozef,

    As far as how to use the functions, I think you want to look at the driver lib manual in \C2000Ware_1_00_01_00\device_support\f28004x\docs\F28004x_DriverLib_Users_Guide.pdf

    Are you using C2000 Ware 1_00_01_00? If so, this should compile, but if it doesn't I'll submit a ticket to get this fixed in the next release.

    Since you have TMX silicon, the part(s) that you have may not have programmed temperature calibration values, so it is possible that once you get this to compile it may still not convert temperature sensor voltage readings into absolute temperature readings correctly.
  • 0 in reply to Devin Cottier
    Intellectual 320 points
    Yes, I use C2000 Ware 1_00_01_00.