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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,

Thanks for your update and clarification. Seems like both the case get routed to me at the same time yesterday. I will set the 04274469 to close and we shall continue to follow up using this case.

Let's try to debug and isolate any potential issue at the transceiver level first before proceed to UART. If required, I will further engage UART expert for further assistance.

Would you mind to signaltap the Native PHY's status signals for me? This include reset, rx_is_lockedtoref, rx_islockedtodata, tx/rx_ready and the RX parallel data. This would be helpful for me to check if there is any anomaly as well as to check on the RX parallel data output at the Native PHY directly.

You may try to attach your signaltap file and the test design QAR directly to the Forum if it is something OK to viewing by public. My previous experience is that customer who open the Forum case can attach/upload file. Only me cannot attach to the thread. The server will prompt me some permission error. If the files are confidential, please feel free to let me know, I will drop you an email for sharing.

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 sooooooooooooooo much for your support. I tried but unfortunately the Forum is not allowing me to attach any files. I even tried using different web browser but not successful. And I am really sorry I don’t know how to use signaltap tool of the quartus because I have never used it. Actually I don’t have a USB blaster cable with which I can use Signaltab tool so I always use model sim to check some simulations and then use raw binary files to program my FPGA on board. But for your convinience, I have extracted These Signals at the modular Level and added as many comments in my HDL design as possible. I have emailed you the files at your email address so that you can check. I am also sending you my .c file and a screenshot of my UART Settings because I have the Feeling that there is some Problem on the UART side. Thank you again for your support. Regards… Sent from Mail for Windows 10
  • CheepinC_altera's avatar
    CheepinC_altera
    Icon for Regular Contributor rankRegular Contributor
    6 years ago
    Hi, Thanks for your update. Sorry for the inconvenience with the Forum file upload. I understand that you do not have a USB blaster cable. Just would like to check with you if you are using any of our devkit or your own board? Without signaltap, it would be rather difficult to check on the Native PHY’s parallel data output. I understand that you have run through Modelsim simulation with your XCVR design which I believe there is no issue in your simulation. I have not yet received your test design files in my email. I will wait for them then further look into it. By the way, just wonder if you have tested sending fix data pattern (not incremental counter value) to the UART to see if you can see the right data? You can try with a few different fix data pattern. With this, we can further check on the functional and isolate any potential timing related issue. Thank you. Best regards, Chee Pin
  • matif's avatar
    matif
    Icon for Occasional Contributor rankOccasional Contributor
    6 years ago

    Hi...

    thanks for the reply. I am using Arrow Sockit Board with (cyclone V SoC chip 5CSXFC6D6F31C8). I have already emailed you the files. I am really sorry about the signal tap but the problem is that I dont know how to use it.

    I shall try sending a fix pattern over the transceiver and see the result.

    Thank you so much again for the support

  • CheepinC_altera's avatar
    CheepinC_altera
    Icon for Regular Contributor rankRegular Contributor
    6 years ago
    Hi, Can you share with me a link to the Arrow Socket Board on web? I would like to take a look to see if we can use Signaltap with it. Thank you. Best regards, Chee Pin