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I modified an old version of wireless reference design and made it work on my WARP boards very well. But today when I tried to update bitstream (actually nothing changed in hardware or software), it poped up error:
INFO:MDT - plb_ethernet (ethernet_mac) -
C:\Xilinx\project\warpProject\mymac0911\system.mhs line 323 - This design
requires design constraints to guarantee performance.
Please refer to the plb_ethernet_v1_01_a data sheet for details.
The PLB Bus clock frequency must be greater than or equal to 65 MHz for 100
Mbs Ethernet operation and greater than or equal to 6.5 MHz for 10 Mbs
Ethernet operation.
INFO:coreutil - License for component <plb_ethernet_v1> not found.
You may use the customization GUI for this component but you will
not be able to generate any implementation or simulation files.
For license installation help, please visit:
www.xilinx.com/ipcenter/ip_licensing_help.htm
I don't understand why the error suddenly came up. What should I do with it? Thanks a lot!
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Another group had the same problem today, also for the first time. It has something to do with the licensing of the PLB EMAC IP core. The EDK includes an evaluation license that lets the core run in hardware for a while (7 hours, I think) before it disables itself. Re-downloading the bitstream resets the counter, so even the evaluation is good enough for most WARP users. But for some reason, that evaluation license seems to have stopped working.
In XPS, in the System Assembly View, right-click on the Ethernet_MAC core and choose License Status. What does it report? On my machine, in XPS 8.2, it shows Status = Hardware Evaluation.
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An update:
None of us are doing anything wrong- it's a problem with the EDK (surprise, surprise).
The evaluation license for the plb_ethernet core is held in a FlexLM license file in C:\EDK\data\core_licenses\plb_ethernet_v1_flexlm.lic.
In EDK 8.2, the evaluation license expired on November 1, 2007. In EDK 9.1, the evaluation expires May 30, 2008. I have no idea why they set the license to expire at all.
You can fix the problem by using the EDK 9.1 evaluation license file; it works fine in EDK 8.2:
1) Quit XPS
2) Rename C:\EDK\data\core_licenses\plb_ethernet_v1_flexlm.lic to something else
3) Make a new C:\EDK\data\core_licenses\plb_ethernet_v1_flexlm.lic and fill it with:
FEATURE plb_ethernet_v1 xilinxd 1.0 30-may-2008 uncounted \ 108EF5D7E66B VENDOR_STRING=License_Type:Hardware_Evaluation \ HOSTID=ANY ISSUER=Xilinx TS_OK
Now the license status in XPS should show Hardware Evaluation, valid until next May.
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I followed your instruction and it worked. Thank you very much!
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Hi. I just noticed that there is only ten days left before the license expires. Is there some way around this problem? I'am using EDK 8.2
-Maybe adjust XP's time&date settings? But that is just lame thing to do. Any ideas ?
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Here's the license file from the 10.1 tools, good until June 2009:
FEATURE plb_ethernet_v1 xilinxd 1.0 30-jun-2009 uncounted \ DF4BF19A178D VENDOR_STRING=License_Type:Hardware_Evaluation \ HOSTID=ANY ISSUER=Xilinx TS_OK
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Here's the license file from the 10.1 tools, good for not expiration:
FEATURE plb_ethernet_v1 xilinxd 1.0 permanent uncounted \ 8BECEFFE0647 VENDOR_STRING=License_Type:Source HOSTID=ANY
Kappasm.
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