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Explorer
Explorer
408 Views
Registered: ‎01-13-2016

Connecting BD pin to GTX

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In my design I have a data pin running at 500 MHz that I would like to run to device pin W4-5, which is the TX data to the SFP on the zc706.

 

This is a GTX transceiver, and I am unable to map that port to that pin directly. From some searching on here I see that the reason is that you cannot map to GTX pins directly and are required to use some kind of special operation like the GTX wizard. However, from the IP catalog I am told you cannot use the transceiver wizard as a BD component.

 

Is there any simple way to link my data pin in my block diagram to the W4 pin on the ZC706? I know there are modules that can be placed in the BD that use the SFP port, so I imagine there is some method to do this, I just don't quite understand how it works.

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Voyager
Voyager
388 Views
Registered: ‎02-01-2013

Re: Connecting BD pin to GTX

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By "500 MHz", I assume you mean the data is running at 500 Mbps. And you want to send that data OUT of pin W4. 500 Mbps is the lowest rate that a GTX transceiver can run at, so you've got that going for you. But what you're asking to do is pretty far away from "simple".

You would need to: 1) use the gtwizard to configure a GTX the way you want to use it; 2) create the (canned) example design for the GTX; 3) extract the parts of the example design the suit your need into yet another project; 4) package that project as an IP that you can import into IPI.

If all goes well, the IP you end up with will have a 32-bit AXI stream input, and an interface clock speed of 15.625 MHz.

-Joe G.

 

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Voyager
Voyager
389 Views
Registered: ‎02-01-2013

Re: Connecting BD pin to GTX

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By "500 MHz", I assume you mean the data is running at 500 Mbps. And you want to send that data OUT of pin W4. 500 Mbps is the lowest rate that a GTX transceiver can run at, so you've got that going for you. But what you're asking to do is pretty far away from "simple".

You would need to: 1) use the gtwizard to configure a GTX the way you want to use it; 2) create the (canned) example design for the GTX; 3) extract the parts of the example design the suit your need into yet another project; 4) package that project as an IP that you can import into IPI.

If all goes well, the IP you end up with will have a 32-bit AXI stream input, and an interface clock speed of 15.625 MHz.

-Joe G.

 

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Explorer
Explorer
361 Views
Registered: ‎01-13-2016

Re: Connecting BD pin to GTX

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That's what I was afraid of. Oh well I guess Ill just have to figure it out. Thanks for the help.
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Voyager
Voyager
357 Views
Registered: ‎02-01-2013

Re: Connecting BD pin to GTX

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And HAPPY ANNIVERSARY!

This week marks the 1-year anniversary since you last accepted a reply to one of your posts as a solution.

Yea!

 

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Explorer
Explorer
345 Views
Registered: ‎01-13-2016

Re: Connecting BD pin to GTX

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Point taken =)
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