Compiler/CC2530: read temperature

Tnx sir,

Certainly, the heat generated by parts on the module affects the temperature measured by the sensor. Is it okay to use internal sensor module? are there a lot of errors?

I remember I had told you to use external temperature sensor but you insisted using internal one. I suppose you need to do calibration by yourself according to your case.

I do not remember that you've told me this ,If I calibrate the internal sensor, can I use it in real projects?

Excuse me, how do i find the values of these variables in my case? 

/* Assume ADC = 1480 at 25C and ADC = 4/C */
  #define VOLTAGE_AT_TEMP_25        1480
  #define TEMP_COEFFICIENT          4

Please explain the formula and according to what reference is written?  What does the denominator show?

And number 22 Why is add with these?

 "temp=22+((value-voltageAtTemp22)/Temp_Coefficient);"

The formula expected a shift voltageAtTemp22 and slope Temp_Coefficient which is compared to 22 degree.