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TMS320F28034: How to read MCU internal temperature on F2803x_64PAG

Part Number: TMS320F28034

Hi Expert

F2803x_80PN can select external ADC or MCU internal temperature sensor by ADCINA5.

But F2803x_64PAG does not have ADCINA5.

What is the behavior and different for TEMP_SENSOR on HW?

How to read MCU internal temperature?

Do I still read MCU internal temperature by ADCRESULT5?

Thanks

Daniel

  • Daniel,

    Yes, you can still use the same method on the PAG using the TEMPCONV bit in the ADCTRL1 register, the temperature sensor is an internal connection to ADCINA5 even if there is not a physical pin on the package.

    Please be aware of an errata that requires either a double sample or increasing the sample and hold window to a minimum of 550ns to ensure an accurate result for the conversion.

    Best,
    Matthew