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Adventurer
Adventurer
5,742 Views
Registered: ‎02-08-2013

Clocking Wizard v3.6 Inverted clocks

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Hi all,

 

using Planahead 14.6 64-bit and the Clocking Wizard v3.6. The SCM primatives guide (UG799) up to version 14.5 show inverted outputs for each clock of an MMCME2_ADV primative yet they aren't accesible via a wizard generated MMCM or even mentioned as ports in the 7 series clocking guide??

 

Is this a wizard bug?

 

cheers

 

Sean

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1 Solution

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Adventurer
Adventurer
9,152 Views
Registered: ‎02-08-2013

Re: Clocking Wizard v3.6 Inverted clocks

Jump to solution

UPDATE: 

 

The inverted clocks do indeed exist - they just aren't made accecible via the clocking wizard for some reason??

 

Solution1: Manually connect the 'unused' <CLKOUTnB> lines outside the editor in the generated .vhd file. Most likely will be overriden whenever the core is modified.

 

Solution2: Manually instantiate the MMCME2_ADV core - means getting the generic values from the wizard first or manually calculating them.

 

Both not great solutions.

View solution in original post

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1 Reply
Adventurer
Adventurer
9,153 Views
Registered: ‎02-08-2013

Re: Clocking Wizard v3.6 Inverted clocks

Jump to solution

UPDATE: 

 

The inverted clocks do indeed exist - they just aren't made accecible via the clocking wizard for some reason??

 

Solution1: Manually connect the 'unused' <CLKOUTnB> lines outside the editor in the generated .vhd file. Most likely will be overriden whenever the core is modified.

 

Solution2: Manually instantiate the MMCME2_ADV core - means getting the generic values from the wizard first or manually calculating them.

 

Both not great solutions.

View solution in original post

0 Kudos