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Honored Contributor
Honored ContributorSpecify clock frequency for CycloneII FPGA
Hi, I want to specify a clock frequency for my counter(VHDL), to make it adds one every second.To simulate it I can simply generate a required waveform, but to configure it into FPGA I think I need a...
Altera_ForumHonored Contributor
Honored Contributor --- Quote Start --- So there is a clock defined and you should be able to see this assigned to a pin on your FPGA. You can input a lower clock frequency to this pin if you like. --- Quote End --- No you can't. I remember, that changjianchun is actually using a Cyclone II Starter Board (he reported in a different thread before), and the said CLOCK_50 is wired to a 50 MHz clock oscillator. The 10 Mhz setting in timing analysis isn't according to the real hardware. The obviously required method is using a clock divider with a respective large ratio to get a visible count frequency.
