I have a quite large SignalTap instance in my design for debugging. Now I am curios if this will consume considerable power during normal operation (i.e. no JTAG connected) or if this will be negligible?
Does anybody have any info or experience regarding this? (If power consumption is high, I would remove SignalTap for production versions, otherwise it can stay in.) Regards, Thomas www.entner-electronics.com (http://www.entner-electronics.com) - Home of EEBlaster
There's a larger number of registers and the signal RAM clocked with the acquisition clock. Depending on the acquisition clock frequency, the power consumption can be significant.
You were right: I compiled the design without SignalTap and got a reduction of about 400mW in my design - more than I would have expected. (But it was really a large SignalTap, it used about half of the memory of a Cyclone IV GX110.)
