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Honored Contributor
Honored Contributor1GHz Counter
I would like to make a multichannel scaler device using an FPGA. It continuously counts a 1GHz clock and latches at an external event trigger, then increment the number in a memory which is addressed...
Altera_ForumHonored Contributor
Honored ContributorA 1 GHz clock is not possible. The maximum supported by the clock tree is 800 MHz for a Stratix IV.
Maybe you can get the job done by using a 500 MHz clock and DDIO to sample the input signal at both edges of the clock? You probably won't be able to run the 23 bit counter at 500 MHz either. Since your event rate is only 1 kHz, there may be some way to work around this.
