i need measure propagation delay, i used .measure tran tdelay trig v(1) val=0.5 td=10n rise=0.2 targ v(2) val=0.6 fall=0.2, but it was failed. can you help me?
Hi Jafri,
Please give more details , in general we measure propagation delay by seeing input trans and output load. So when tool sees these two values it goes in to .lib file where we have matrix and there we have lot of values . So tool pick value from there. if it is not fall into matrix then tool will extrapolate based on values present in matrix. hope it will help you.