I'm trying to understand how to use bidirectional pins and inout. Simple put I have a verilog code that looks like this
input oe;
input a;
output ab;
inout b;
assign b = (oe) ? a : 1'bz:
assign ab = b
The intended operation is that 'ab' will get what is on the pad 'ab' either 'a' or what is driving 'ab' when tri-stated.
The seconds part is the top level is a schematic (.bdf). I have used a 'BIDIR' pin connected to the 'ab' and get a compiler warning that the pin tristate that pin
What am I missing or NOT see?
Thanks
