External Quartz Resonator Clock Generation in FPGA

[Altera_Forum]

Hi, 

 I would like to generate a crystal resonator clock in an FPGA, i.e. connect an external quartz resonator (and not oscillator) to an internal digital NOT (inverter) gate of an fpga, similarly to a microprocessor (Pierce-Gate crystal oscillator circuit).  Can it be implemented?  Thank you and kind regards. Varouj

[Altera_Forum]

--- Quote Start ---  Hi,  I would like to generate a crystal resonator clock in an FPGA, i.e. connect an external quartz resonator (and not oscillator) to an internal digital NOT (inverter) gate of an fpga, similarly to a microprocessor (Pierce-Gate crystal oscillator circuit).  Can it be implemented?  Thank you and kind regards. Varouj  --- Quote End ---    you need to be aware that fpga inverters are implemented in LUTs and it will be hard to control delay through such implementation.