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Visitor oqpsk
Visitor
312 Views
Registered: ‎04-05-2017

Zynq GTP jesd204 receiver always re-link

hi,

    I'm using Z7015 to connect to ADI AD9371. The JESD204B link is running at 2.56Gsps and ADC sample rate is 64Msps. And when AD9371 transmits ADC signals to Z7015, when AD9371 RX port input level is as high as -20dBm, Z7015 frequently pulls sync down and re-link JESD204B. But I captured those signals from JESD204B PHY and there is no disparity error or no in table error. Z7015 just pulls the sync signal down. Vivado version: 2018.2.

    Please help, thanks a lot!234234.jpg

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Visitor oqpsk
Visitor
305 Views
Registered: ‎04-05-2017

Re: Zynq GTP jesd204 receiver always re-link

BTW: when AD9371 RX port input level is lower than -20dBm, link is always ok.

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Visitor oqpsk
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Registered: ‎04-05-2017

Re: Zynq GTP jesd204 receiver always re-link

Problem solved. The issue is caused by that the not all 4 RX lanes are established. Only 2 lanes are established, and the other 2 report error.