I am trying to power the NUCLEO-F429ZI board from external 5V supply. I am providing 5V at pin 6 of CN11. Jumper JP1 is off and JP3 is on pins 2 and 1 (E5V). The problem is that CPU does not boot till I press the reset button. Further, If I connect the USB cable to ST-link after turning ON external power, then CPU comes up.
I have checked the NRST line (CN11, Pin 14) and it is high, there is a glitch on it though (check the attached picture). Adding an external reset circuit doesn't help either (R and C in series, time constant around 80ms).
ST-LINK firmware version is V2J37M27.
