As always, thank you so much Paul.
That was the direction I needed to start looking in the right places. Definitely a power supply issue. I'm not sure what has happened in my design, been using Eagle for 10+ years...
Hate to have to ask this question since it's custom hardware that doesn't apply to everyone, but hoping someone can lead me in the right direction here.
I'm using a board with a MK66FX1M0VLQ18 (TQFP package) and...
Find latest posts