AR# 46879

描述

解决方案

This behavior seems to be caused by glitches in the input (GTX_TEST) to the MGT tile from the hot plug module of the Aurora Core. The RXRESETDONE signal will deassert at the same edge as the RXNOTINTABLE errors begin with no apparent reset being applied.

The following code needs to be changed in "*_hotplug.v/vhd" to add a flip-flop on the link_reset signal in the aurora_8b10b hot plug module. This module can be found in the "src" folder in the Aurora Core.

Before Modification:

assign link_reset_0 =( (count_for_reset_r > 14'd5100) & (count_for_reset_r < 14'd10200) ) ? 1'b1 : 1'b0;
assign link_reset_1 =( (count_for_reset_r > 14'd5100) & (count_for_reset_r < 14'd16300) ) ? 1'b1 : 1'b0;

After Modification:

always @(posedge USER_CLK)
begin
link_reset_0 <=( (count_for_reset_r > 14'd5100) & (count_for_reset_r < 14'd10200) ) ;
link_reset_1 <=( (count_for_reset_r > 14'd5100) & (count_for_reset_r < 14'd16300) ) ;
end

This issuewill be fixed in the next release of the core.

Revision History:

04/13/2012 - Initial Release