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9,408 Views
Registered: ‎12-17-2013

Error after upgrade vivado 2014.2

Hi
I implement an encrypted netlist ipcore from Xilinx.(under NDA)
Vivado Design Suite 2013.4 does not report any problem with generating bitstream.
After upgrade to Vivado Design Suite 2014.2 this error is reported during generation bitstream:
[DRC 23-20] Rule violation (AVAL-8) FIFO_AlmostRange_empty -
xxxxxxxxxxxxxxx_top / inst_ethernet_subsystem / i_mac_trispeed / GMII_RX_FIFO: ALMOST_EMPTY_OFFSET value of 4 is out of range 6 to 4091
[Drc 23-20] Rule violation (AVAL-9) FIFO_AlmostRange_full - xxxxxxxxxxxxxxx_top/inst_ethernet_subsystem/i_mac_trispeed/GMII_RX_FIFO: ALMOST_FULL_OFFSET value of 0 is out of range 4 to 4089.

In ipcore documentation states:
"Tested Design Flows - design Entry - Vivado Design Suite 2012.3, 2012.4"
 
Is there any way to use the newer vivado 2014.2?

Thanks!

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3 Replies
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Moderator
Moderator
9,383 Views
Registered: ‎01-16-2013

Re: Error after upgrade vivado 2014.2

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Scholar
Scholar
9,380 Views
Registered: ‎11-21-2013

Re: Error after upgrade vivado 2014.2

Josef,

 

We had similar issue in our RTL, where the DRC warnins became a DRC violation, but if the netlist is encrypted and delivered by Xilinx, you have 2 choices: either you can find that magic signal that sets the signals as yash pointed to my previous posting or call your local FAE and ask him to contact Xilinx on this matter (and optionally buy you a beer !!!).

 

BR

Vlad

Vladislav Muravin
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Visitor
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Registered: ‎11-28-2008

Re: Error after upgrade vivado 2014.2

We have the same issue with 2014.2, it did not exist it 2013.4 or earlier tools.  Is this a bug?

 

ERROR: [Drc 23-20] Rule violation (AVAL-13) FIFO_AlmostRange_full - i_vid/g_ini_module_enbl.i_ini_module_01/g_ini_test_enbl.i_ini_test_v1_v1/i_test_tgt_v1/i_blk_cache_ctrl/i_fbuff_block_reader_v1/i_rd_clt/i_read_data_fifo/g_f.g_f36n.g_n[0].g_v6_plus.i_FIFO36E1_inst: ALMOST_FULL_OFFSET value of 1026 is out of range 4 to 1017.
ERROR: [Drc 23-20] Rule violation (AVAL-13) FIFO_AlmostRange_full - i_vid/g_ini_module_enbl.i_ini_module_01/g_ini_test_enbl.i_ini_test_v1_v1/i_test_tgt_v1/i_blk_cache_ctrl/i_fbuff_block_reader_v1/i_rd_clt/i_read_data_fifo/g_f.g_f36n.g_n[1].g_v6_plus.i_FIFO36E1_inst: ALMOST_FULL_OFFSET value of 1026 is out of range 4 to 1017.

Mike

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