How can I use clock on cyclone II ?

[Altera_Forum]

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 understand clearly on how to use it....  What's the simplest way to use get a clock on cyclone 2 ( EP2C8Q208)? in uC it's very simple for a clock source, a network of 2 capasitors and crystal....  Any links or eperiences will be appreciated.  Thanks

[Altera_Forum]

Hello bianchi. 

 you don't have an oscillator in a Cyclone device so 2 capacitors and a crystal isn't enough. Electronics components stores like mouser or digikey have integrated oscillators. With Cyclone II i used an SMD 50MHz 3,3V oscillator of ABRACON.  Configure the PLL it's easy. You have a Wizard to do it. Then you instantiate a component pll in your vhdl file. A detail: I use global reset active with '0' and the pll has reset active with '1'. Don't forget the inverter in your design or you'll see it hanged.

[Altera_Forum]

--- Quote Start ---  Connect the PLL output into CLK0 ? and configure it on quartus ?  --- Quote End ---   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.

[Altera_Forum]

--- Quote Start ---  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.  --- Quote End ---    So I need external clock source. Do u know the link of the schematic? Tx

[Altera_Forum]

--- Quote Start ---  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.  --- Quote End ---   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