You can start a second instance of HyperLynx and start a second simulation therein.
(But maybe that's not what you mean)
No, that we can do , But i want simultaneous simulation of two signals e.g. DQ & DQS
Maybe you can copy your two line sim schematics into one, then run both in one instance?
(I tried that and at a first glimpse, it seems to work)
P.S. Just saw that Yu Yanfeng answered the same...
thats what i have asked yeah i checked its working
One thing more, how to decide the electrical threshold while simulating for crosstalk.
i am not getting any concrete material for it?
For instance : if we have a DDR working at 1.5V then how to decide the electrical crosstalk
threshold for it.
An idea (unverified):
take the min/max values of the driver's output,
subtract the min/max values of the receiver's input switching threshold,
take the minimum of both,
subtract a 50% safety margin and you get a crosstalk tolerance value.
Driver output LOW max. voltage = 0.2 V
Driver output HIGH min. voltage = 1.1 V
Receiver input LOW threshold = 0.4 V
Receiver input HIGH threshold = 0.85 V
LOW margin = 0.4 V - 0.2 V = 0.2 V
HIGH margin = 1.1 V - 0.85 V = 0.25 V
0.2 V is the minimum of both, so:
0.2 V - 50% = 0.1 V = 100 mV crosstalk tolerance.
Also like to have some insights from Mr. Yanfeng on this issue.