I hit a snag with ISE Webpack from Xininx. There appears to be a bug that is evidently fixed in the purchase version of ISE, but I am getting it in webpack. Specifically, I get this when I try to synthesize a top-level design:
"ERROR:Xst:2033 - Port I of Input buffer <instance_name> is connected to GND"
Example
IOBUFDS lvds_ibufg_crystal
(
.IO(inp),
.IOB(inn),
.I(1'b0),
.O(outp),
.T(rst)
);
But Xilinx claims:
Since I'm using ver 11.1, I should not be seeing this error message. Could it be that I'm using the free version of software, or maybe because I'm targeting Spartan3 technology?
I guess I could try it and specify Spartan6???? I'll give that a try is nobody has a better idea.
"ERROR:Xst:2033 - Port I of Input buffer <instance_name> is connected to GND"
Example
IOBUFDS lvds_ibufg_crystal
(
.IO(inp),
.IOB(inn),
.I(1'b0),
.O(outp),
.T(rst)
);
But Xilinx claims:
Solution
This issue is fixed in ISE 8.2i.
Since I'm using ver 11.1, I should not be seeing this error message. Could it be that I'm using the free version of software, or maybe because I'm targeting Spartan3 technology?
I guess I could try it and specify Spartan6???? I'll give that a try is nobody has a better idea.