Hello,
From searching, I see that others have had this same problem, but the solutions were vague and old (2002). I'm using XPS 8.1 with Spartan IIE 600 and I'm trying to bring a couple of signals from a peripheral to a pin, but XPS automatically assumes that they are clocks, so it uses a GCLK which results in the error:
"Number of GCLKs: 5 out of 4 125% (OVERMAPPED)".
How can I find out which signals it has routed as GCLKs? How can I reduce the number of GCLKs used? How can I manually assign GCLKs to the signals I want, without XPS doing it automatically?
I've tried passing the signals through an OBUF in the wrapper of my peripheral, but that results in an "illegal buffer" error.
Thanks for your help.