Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

encoutered a confusing prob. about its warning

I got a warning :"input pins that donot drive logic".In my project I use a "component" sentence. The problem is when I compile the component only ,that input pin xx work(the warning disappear,I can ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

I cann't assemble any until now.The connetcion was there when seen in RTL ,but lost in techology map viewer. This maybe mean that it is not because the connection that I neglect,but the fitter or synthesis's judgement for that model output of that input pin always stuck at GND ,known from warning,so they just omit their input pin's connection. Anyone here have better ideas?