Author Topic: PS-GTR Transceiver on TE0808-5  (Read 209 times)

Manuel

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PS-GTR Transceiver on TE0808-5
« on: November 29, 2021, 12:23:43 PM »
Dear all,
We wanna use the PS-GTR Transceiver for connecting an optical ethernet port directly to the PS, see picture ps_gtr (https://www.xilinx.com/support/documentation/user_guides/ug1085-zynq-ultrascale-trm.pdf).
Is on the Hardware side of the TE0808-5 everything prepared, like in the picture hw_ps_gtr (https://www.xilinx.com/support/documentation/user_guides/ug583-ultrascale-pcb-design.pdf) to use the PS-GTR?

kind regards
manuel

JH

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Re: PS-GTR Transceiver on TE0808-5
« Reply #1 on: December 01, 2021, 12:07:25 PM »
Hi,
I don't know what you mean with everything is prepared like on the Xilinx ZynqMP pictures.

GTR are connected and powered on TE0808, see schematics:
https://shop.trenz-electronic.de/en/Download/?path=Trenz_Electronic/Modules_and_Module_Carriers/5.2x7.6/TE0808/REV05/Documents
Reference CLK depends on your carrier. You can either configure TE0808 on board PLL (wihich must be configured via I2C or write NVM one time over I2C) or use external GTR REF CLK which are need for optical ETH.

"optical Ethernet" is a wide range and depends on a lot of configurations.
We used GTR on TE0808 at the moment only for PCIe, USB3, SATA and DP together with TEBF0808

br
John
 

Manuel

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Re: PS-GTR Transceiver on TE0808-5
« Reply #2 on: December 01, 2021, 12:43:00 PM »
Thanks for Your Answer.
We just wanted to eliminate the HW as source of the Failure with a PS-GTR Connection.
In the meanwhile our Software guys found the bugs in their mapping of the transceiver Clock. And the Interface is now working correct.

JH

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Re: PS-GTR Transceiver on TE0808-5
« Reply #3 on: December 01, 2021, 12:51:10 PM »
Hi,

Quote
We just wanted to eliminate the HW as source of the Failure with a PS-GTR Connection.
Yes, it always makes sense to look for all possible causes of errors. But next time maybe also explain how you has connect in on your carrier, when you ask such a question. TE0808 simple routed the GTR to the B2B connector without any predefined usage.

Quote
In the meanwhile our Software guys found the bugs in their mapping of the transceiver Clock. And the Interface is now working correct.
There are clearly too many ways that such interfaces don't work properly these days. 

It's good to hear that you get it working on your place.

br
John