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htehte
Visitor
Visitor
2,770 Views
Registered: ‎08-23-2010

Spartan 6 GTP TX Differential Voltage Swing

I am trying to get a Virtex 6 to communicate over a ribbon cable to a Spartan 6.

 

Am not getting Lane_Up or Channel_Up.

 

Implemented an IBERT project and was able to get zero errors by increasing the TXDIFFCTRL to 729mv on the Spartan 6 TX lines.

 

Everything is good except I have no idea how to use the TXDIFFCTRL value in my program.  

 

Is it a special file, a ucf, a system environment?

 

One document for Virtex 5 indicated that I would be able to use the value from IBERT in the GTP settings of the Wizard but I was not able to find that in the Serial Connectivity Wizard.

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htehte
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2,756 Views
Registered: ‎08-23-2010

After having used Serial Comunnications Aurora 8b/10b Coregen for several projects, they were always communicating to SFP modules.  

 

To be able to modify transmitter and receiver settings, you have to use the GTP Wizard.

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