MSP430F2132: Calibration for internal temperature sensor

Hello Linda,

Please see section 22.2.8 in the device user guide for more information about the integrated temp sensor, including a link to how to do temp calibration with the given calibration constants in the part. Please see the device specific datasheet for more information about the Temp Calibration constants included for the part.

Keep in mind the datasheet parameters show the integrated temp accuracy when calibrated. Additional calibration temps may be needed for a specific applications that need more accuracy. These additional calibration points would need to be done by the customer.

Please note that due to the holidays in the US and EU, responses to this thread will be delayed until the beginning of 2019.

Hello Linda,

We have code examples for the MSP430F2132 that showcase how to properly calibrate and use the internal temperature sensor. Please refer to the TI Resource Explorer for that specific device ( dev.ti.com/.../ ) and find the examples referencing the temperature sensor. A good one to start out with would be msp430x21x2_adc10_temp.c

If the temperature sensor is properly calibrated and there is still a constant offset of the temperature reading, then accounting for that offset in the application can be done to adjust for it.

Best regards,

Matt Calvo