Thanks for the reply. I did look for a separate ground around the led, but no joy.
The way that I was able to set it on my fisrt board was by using the smaller VBB gound that is used for a fan. Is this a good spot? I noticed another ground on the 4 pin ENA thingy. Would this ground work as well? Are all the labelled grounds suitable for setting VREF's?
Thanks again.
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Lee |