Jump to content

Nucleo 144 and reset problem with external power supply


Recommended Posts



My board : Nucleo F429ZI

My Shield : Shield Version 4.03 by Joerg Amann & Stefan Rinke


My Pin2dmd work well when i use a usb cable on CN1 and JP3 on U5V.


But when i use an external power supply (+5V 60A) on the Shield board and JP3 on E5V, my Pin2dmd stay black.  I must press Reset button to start my Pin2dmd.


After some research , i found a soluce to this problem.


Soluce : Removing SB111 (resitor 0 ohm).


Now your Pin2DMD must be working without press reset button.


If not, i have modified my shield board before removing SB111.


I have cut the track (5V) beetween +5V connector and +5V rectangular pad.

I have tied +5V connector pin to pin 5 of CN1 (E5V) .


Now i hope that will work for you too.


PS (Sorry for my english)

Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
  • Create New...