Forum Discussion
Altera_Forum
Honored Contributor
12 years agoI highly suggest you to set "unsued pin as input tri-stated" and recompile then redownload your design.
On extension headers, there are GND and VCC that could be unintentionnally shorted with an unused output pin which is driving to GND. With a factory design, did you still hear noise from power supply ? In order to see if your board is burnt or not.