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LPC 4370 custom design board

Question asked by sujay p on Jun 19, 2017
Latest reply on Jun 22, 2017 by sujay p

Dear NXP Technical Support Services,


I have a power supply board that supplies a Lpc4370  and other components of a system. When I measure the resistance between power  and GND using a multimeter I get the following readings:


    Between 3.3V and GND: 26 Ohms


The 3.3V and 1.2V rails have many decoupling caps around power supply pins of the LPc4370 microcontroller , are they the only cause for this much reduced isolation between these voltages and ground?


The system is running perfectly for couple of days , after running some trace unit testing , the system stops running with keil ulink pro   and now i am using the Keil ulink 2 and it was showing swd commmunication failure.


I am using Keil MDK 5.23 version .


Actually the if you know it is from the hardware problem  or  firware version in keil it was displaying V2.03.