Help with spectre stimulus file for sram read.

Sorry, but there is no hope of anyone being able to answer your question with the level of information you've provided. Unless somebody is familiar with your circuit, I don't know how you'd expect anyone to know if it would have the desired effect. You a 1V supply on a net called vdd!, and a piece-wise-linear source which steps from 0 to 1 between 20n and 22n, and from 1 to 0 between 40ns and 42ns, but who knows whether this is connected to your circuit, or if there are other inputs to the circuit which ought to be connected. Simply not enough information to be able to tell you anything you didn't know already...

Regards,

Andrew.

This is the schematic. I have initialized the conditions required for the read operation . i.e., I want to read a value of 1 so i have initialized Q as 1 and QR as 0. and for the read operation to take place both the bitlines have been initialized to 1. I have used PWL as the source for the word line(WL).

These are the warnings I am getting when i try to simulate. are these warnings causing my output to be improper?

Notice from spectre during topology check.
    Only one connection to the following 2 nodes:
        BL
        BLB
    No DC path from node `WL' to ground, Gmin installed to provide path.
Warning from spectre during heuristic topology check - set topcheck=fixall to fix all floating nodes.
    WARNING (SPECTRE-7): No DC path from node `vdd!' to ground.
    WARNING (SPECTRE-7): No DC path from node `gnd!' to ground. 

Hello,

When I try to simulate the above circuit using the initial conditions(ADE->Simulation->Convergence Aids->Initial Condition) and sources directly in the circuit. i am getting the output correctly.

But i when i try to simulate it through the stimulus file, I am not getting the required output.
Is this stimulus file correct?
simulator lang=spectre
global gnd!
vdd (vdd! 0) vsource dc=1
gnd (gnd! 0) vsource dc=0
ic Q=1 Qb=0 BL=1 BLB=1
v6 (WL 0) vsource type=pwl wave=[0 0 20n 0 22n 1 40n 1v 42n 0v]

Compare the netlists you get by the two different methods. There must be something different - because the simulator should give the same response to the same input (and the GUI way is just a way of writing the netlist for you).

You might be better off contact customer support so that we can see the full extent of your data, rather than incomplete snippets.

Andrew.