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MPC5744P debug mode succeed but stand-alone fail

Question asked by WenYen Chen on Apr 11, 2018
Latest reply on Apr 18, 2018 by WenYen Chen

Dear Sir


We are now facing a problem in our own board which is using MPC5744P IC.


When I was using debug mode, the program runs normally and the function is correct,


but after leave debug mode, let the MCU runs as stand alone(also reset the power), the program cannot run normally, and the function is  incorrect.


We had checked the 40MHz oscillator and  VDD_LV_PLL0 , these two pin provides the correct voltage.


Do you have any suspect of this kind of issue or how can we troubleshooting to let the stand-alone mode succeed?