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Altera_Forum's avatar
Altera_Forum
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12 years ago

How can I use clock on cyclone II ?

Guys, Do you know how to use a clock in cyclone 2 ? Connect the PLL output into CLK0 ? and configure it on quartus ? I tried to read on : 7. PLLs in Cyclone II Devices But don't underst...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
12 years ago

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Lift you up by your own bootstraps? You're still missing a clock source for the PLL.

As there's no inbuilt oscillator circuit, you would typically use a four-pin crystal oscillator device. Looking at a basic development kit schematic should give you an idea how.

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can I use this one ?

http://www.ebay.com/itm/4-pcs-50-000mhz-dip-4-50-000m-50m-50mhz-crystal-oscillators-3-3v-/370804552950?pt=lh_defaultdomain_0&hash=item5655ac74f6

Thanks