topic Re: I am having an issue with using a fresh S12G48 microcontroller, pin 26 (PS1/TX0) appears to be shorted to ground internally, when powering the microcontroller via VDDXRA and VSSXA pins (3.3V) there is a 1.5A current draw and the MCU becomes hot. I am in S12 / MagniV Microcontrollers https://community.nxp.com/t5/S12-MagniV-Microcontrollers/I-am-having-an-issue-with-using-a-fresh-S12G48-microcontroller/m-p/510176#M12437 <HTML><HEAD></HEAD><BODY><P>Well, such behavior is very unusual and that should not happen.</P><P>Where did you buy the parts? I hope you did it through authorized distributor network.</P><P>Is your HW schematic and layout board correct? Please check the schematic of our TWR-S12G64 tower board and compare it with your design if there is anything wrong.</P><P>It would be good if you can have the tower board and replace the micro with one from the batch to check if the MCUs are really bad.</P><P></P><P>Regards,</P><P>iggi</P></BODY></HTML> Wed, 30 Mar 2016 09:19:07 GMT iggi 2016-03-30T09:19:07Z I am having an issue with using a fresh S12G48 microcontroller, pin 26 (PS1/TX0) appears to be shorted to ground internally, when powering the microcontroller via VDDXRA and VSSXA pins (3.3V) there is a 1.5A current draw and the MCU becomes hot. I am unab https://community.nxp.com/t5/S12-MagniV-Microcontrollers/I-am-having-an-issue-with-using-a-fresh-S12G48-microcontroller/m-p/510175#M12436 <HTML><HEAD></HEAD><BODY><P>I am having an issue with a fresh S12G48 MCU, pin 26 (PS1/TX0) appears to be shorted to ground internally, when powering the microcontroller via VDDXRA and VSSXA pins (3.3V) there is a 1.5A current draw and the MCU becomes hot. I am unable to program the MCU as it is not responding to the BDM programming module. I have tried multiple MCUs from the same batch and they all seem to behave in the same way. Many thanks!</P></BODY></HTML> Tue, 29 Mar 2016 13:04:47 GMT https://community.nxp.com/t5/S12-MagniV-Microcontrollers/I-am-having-an-issue-with-using-a-fresh-S12G48-microcontroller/m-p/510175#M12436 mihailsjakovlev 2016-03-29T13:04:47Z Re: I am having an issue with using a fresh S12G48 microcontroller, pin 26 (PS1/TX0) appears to be shorted to ground internally, when powering the microcontroller via VDDXRA and VSSXA pins (3.3V) there is a 1.5A current draw and the MCU becomes hot. I am https://community.nxp.com/t5/S12-MagniV-Microcontrollers/I-am-having-an-issue-with-using-a-fresh-S12G48-microcontroller/m-p/510176#M12437 <HTML><HEAD></HEAD><BODY><P>Well, such behavior is very unusual and that should not happen.</P><P>Where did you buy the parts? I hope you did it through authorized distributor network.</P><P>Is your HW schematic and layout board correct? Please check the schematic of our TWR-S12G64 tower board and compare it with your design if there is anything wrong.</P><P>It would be good if you can have the tower board and replace the micro with one from the batch to check if the MCUs are really bad.</P><P></P><P>Regards,</P><P>iggi</P></BODY></HTML> Wed, 30 Mar 2016 09:19:07 GMT https://community.nxp.com/t5/S12-MagniV-Microcontrollers/I-am-having-an-issue-with-using-a-fresh-S12G48-microcontroller/m-p/510176#M12437 iggi 2016-03-30T09:19:07Z