S12 / MagniV MicrocontrollersのトピックHow to Calculate Chip Temperature for 9s12vr? https://community.nxp.com/t5/S12-MagniV-Microcontrollers/How-to-Calculate-Chip-Temperature-for-9s12vr/m-p/482789#M12036 <HTML><HEAD></HEAD><BODY><P>I wanted to read the chip temperature for a 9s12vr chip using its internal ADC channels.&nbsp; I was able to read the ADC counts for the chip temperature and bandgap, but did not know how to convert it to temperature in degree C.&nbsp; Unable to find the specification for the conversion.&nbsp; Appreciate if anyone can post the conversion formula.</P></BODY></HTML> Wed, 18 May 2016 19:45:54 GMT dli1 2016-05-18T19:45:54Z How to Calculate Chip Temperature for 9s12vr? https://community.nxp.com/t5/S12-MagniV-Microcontrollers/How-to-Calculate-Chip-Temperature-for-9s12vr/m-p/482789#M12036 <HTML><HEAD></HEAD><BODY><P>I wanted to read the chip temperature for a 9s12vr chip using its internal ADC channels.&nbsp; I was able to read the ADC counts for the chip temperature and bandgap, but did not know how to convert it to temperature in degree C.&nbsp; Unable to find the specification for the conversion.&nbsp; Appreciate if anyone can post the conversion formula.</P></BODY></HTML> Wed, 18 May 2016 19:45:54 GMT https://community.nxp.com/t5/S12-MagniV-Microcontrollers/How-to-Calculate-Chip-Temperature-for-9s12vr/m-p/482789#M12036 dli1 2016-05-18T19:45:54Z Re: How to Calculate Chip Temperature for 9s12vr? https://community.nxp.com/t5/S12-MagniV-Microcontrollers/How-to-Calculate-Chip-Temperature-for-9s12vr/m-p/482790#M12037 <HTML><HEAD></HEAD><BODY><P>Hi David,</P><P>The temperature sensor has to be calibrated for giving enough accurate results. The offset and slope are specific for every MCU. The selected calibration method depends on required accuracy.</P><P>Please look at our application note AN3624 S12X Temperature Sensor</P><P><A class="jive-link-external-small" href="https://community.freescale.com/external-link.jspa?url=http%3A%2F%2Fwww.nxp.com%2Ffiles%2Fmicrocontrollers%2Fdoc%2Fapp_note%2FAN3624.pdf" rel="nofollow" target="_blank">http://www.nxp.com/files/microcontrollers/doc/app_note/AN3624.pdf</A></P><P></P><P>Some more general details about calibration may be found also in our application note AN3031 Temperature Sensor for the HCS08 Microcontroller Family</P><P><A class="jive-link-external-small" href="https://community.freescale.com/external-link.jspa?url=http%3A%2F%2Fwww.nxp.com%2Ffiles%2Fmicrocontrollers%2Fdoc%2Fapp_note%2FAN3031.pdf" rel="nofollow" target="_blank">http://www.nxp.com/files/microcontrollers/doc/app_note/AN3031.pdf</A></P><P></P><P><BR />I hope it helps you.</P><P></P><P>Have a great day,<BR />RadekS</P><P></P><P>-----------------------------------------------------------------------------------------------------------------------<BR />Note: If this post answers your question, please click the Correct Answer button. Thank you!<BR />-----------------------------------------------------------------------------------------------------------------------</P></BODY></HTML> Thu, 19 May 2016 07:17:53 GMT https://community.nxp.com/t5/S12-MagniV-Microcontrollers/How-to-Calculate-Chip-Temperature-for-9s12vr/m-p/482790#M12037 RadekS 2016-05-19T07:17:53Z