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matif's avatar
matif
Icon for Occasional Contributor rankOccasional Contributor
6 years ago

Inconsistent Data of Transceiver

​Hi all, I am printing my data from trasnceiver at UART output terminal (putty). My setup consists of a counter running at 100 Mhz. this counter is connected to transciever. The transceiver pll cloc...
CheepinC_altera's avatar
CheepinC_altera
Icon for Regular Contributor rankRegular Contributor
6 years ago

Hi,

As I understand it, you seems to observe some issue with RX parallel data output display at UART output terminal.

By the way, I notice that you have filed another case 04274469, just would like to check with you if both of the cases 04274469 and 04274941 are similar? If they are the same, then we could follow up using a single case for better tracking purpose.

Regarding your RX parallel data output issue, we would require further debugging to further narrow down the issue. Just would like to check with you on the following:

1. Just wonder if you have had a chance to SignalTap the transceiver RX parallel data output to see if the output is something expected?

2. You may also cross check the SignalTap data with the UART terminal to see if there is any discrepancy.

3. Would you mind to share with me your transceiver Native PHY's .qsys file so that I can have a better understanding on your transceiver configuration.

Please let me know if there is any concern. Thank you.

Best regards,

Chee Pin

  • matif's avatar
    matif
    Icon for Occasional Contributor rankOccasional Contributor
    6 years ago
    • Hi Chee Pin, Thank you so much for your reply. 1. Yes case 04274941 and 04274469 are the same cases. Actually I wasn't getting a responce thats why I filed another similar case with more details. 2. Yes, I have issues with RX Parallel Data output display at Uart output terminal. I want to see the consistent counter sequence like 0,1,2,3,4, upto 14 but as you can see in my post I am getting inconsistant data. Some of the people suggested me that because I am running Linux on my cyclone V board that is why my application reading rate is really slow but I also tried to run the counter at really slow speed like at just 10 Hz but even then I was not getting the consistent data. To be sure that the transceiver is synchronized, I connected the rx_syncstatus output to one of the LED on board and the LED is lighted up means transceiver is synchronized. 3. Yes, for sure, I can share with you my quartus project file so that you can have a look. Where should I share it because I am not able to upload the file here at website remember last time we also tried to upload the transciever loopback example and it didn't work so you had to email me the file. So just let me know how can I share my transciever file with you. And thank you so much for your reply. You always help me. Appreciated. Regards Sent from Mail for Windows 10