I am writing VHDL and attempting to use the precompiled functions: okHostInterface, okWireIn, and okWireOut and having some issues during synthesis:
XST:2183 - the following tristate(s) are NOT replaced by logic (Please refer to Answer Record 20048 for more information): ti_data, ti_data, ti_data, etc…
looking at Xilinx’s Answer Record 20048: one situation where XST is not able to replace a tristate by logic is when the tristate is connected to a black box.
Synthesis is also telling me that More than 100% of Device resources are used because I’m using 48 out of 0 TBUFs.
Is there anything I can do about any of these things so I can make this work?
a) ti_data is a tristate
b) it is connected to a black box
c) therefore it cannot be replaced by logic (ie needs a TBUF)
d) there are 0 TBUFs available to me (3s1500fg320-4)