Forum Discussion
ContributorExample design: Agilex I-series devkit not detected by lspci (stuck in S_CFG_LINKWD_START)
I found the issue.
The default position for the SW3 is defined in the UG as OFF/ON/ON/OFF, to use the refclk from the connector.
The board was received with OFF/OFF/OFF/OFF, to use the on-board refclk.
I set the SW3 as documented and it's now enumerated by the bios and seen in lspci.
Why it doesn't work using the on-board refclks?
Devkit: DK-DEV-AGI027RES
Serial number: AGIPCIE8000248
Regards,
Regular ContributorHi,
I receive a new update on R-tile bug issue, it might be one of the root causes of your problem.
Please refer the link below, download and install the patch, the problem shall fixed in future release
https://www.intel.com/content/www/us/en/support/programmable/articles/000090874.html
Let me know if this help, Looking forward to hear back from you
Regards,
Wincent_C_Intel
alexislmsHi @Wincent_Altera,
- I added the smartVID to your project and it programs successfully now.
- I tried 3 different motherboards (up to Gen3x16) and no one detects the card with the 22.1 project and your project.
- I checked several times the physical connection, no issues, it's fully in and it works with all the other PCIe cards we have. Nevertheless, I could only test in lab servers where the card is vertically plugged in due to the PCIe bracket being 1cm taller than the standard size.
Thank you for the patch, I installed it and the project is compiling.
Regards,
- alexislms
I found the issue.
The default position for the SW3 is defined in the UG as OFF/ON/ON/OFF, to use the refclk from the connector.
The board was received with OFF/OFF/OFF/OFF, to use the on-board refclk.
I set the SW3 as documented and it's now enumerated by the bios and seen in lspci.
Why it doesn't work using the on-board refclks?
Devkit: DK-DEV-AGI027RES
Serial number: AGIPCIE8000248
Regards,
- Wincent_Altera
Hi,
Glad that you solve the issue, thanks for sharing with me as well
Seen that the problem happens on the refclks settings if follow Error Code 18948
https://www.intel.com/content/www/us/en/support/programmable/articles/000086828.html
With that, I am setting this case to close status at this time.
If you have a new question, feel free to open a new thread to get support from Intel experts.
Otherwise, the community users will continue to help you on this thread. Thank you
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Regards,
Wincent_C_Intel
- alexislms
Before closing the issue, I would like to understand why it doesn't work setting the on-board refclk in SW3.
There is something wrong somewhere, I don't get the Error Code 18948 with the example design since the board is successfully programmed and I can use SignalTap to see the internal signals (cf. the screenshot in the question). However, the board wasn't enumerated.
Is that a hardware issue of the devkit?
