How to create hspiceD cellview myself?

T

Tao Chen

Guest
Hello,

I am trying to simulate my circuits with UltraSim. I have to use .vec
file in my simulations. I tried two things:

1, to generate the spectre netlist. Then in the simulation I got the
message as below:

****WARNING****: This RelXpert statement is currently not supported (
statement ignored as a comment ).
FILE:input.ckt, LINE#:2649
**.vec "./vec77"

It seems that in the spectre netlist, the **.vec command is not
supported.

2, to generate the hspice netlist. Then I need a "hspiceD" cellview for
the components I used. So I copied them directly from the analogLib
library. When I regenerate the netlist, cadence gives me the message as
below:

Netlist Error: Cannot find any info on instance "M4" in cell-view
"umc018_layout" "bias" "schematic"

It seems that I have to provide more information to the hspiceD
cellview. What should I do then? Thanks!

Best Regards,
Tao
 
I solved this problem by adding information with CDF tool. But I met
another strange thing. It seems that it is a bug of UltraSim.

I use a vector file as this:

radix 44444444444444444444444444444444 44444444444444444444444444444444
1111111 1111111
io iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii
iiiiiii iiiiiii
vname th_[127:0] thn_[127:0] b_[6:0] bn_[6:0]
tunit ns
period 5

vih 1.8
vil 0

00000000000000000000000000000000 00000000000000000000000000000000
0000000 0000000
10000000000000000000000000000000 00000000000000000000000000000000
0000000 0000000
20000000000000000000000000000000 00000000000000000000000000000000
0000000 0000000
90000000000000000000000000000000 00000000000000000000000000000000
0000000 0000000
3A000000000000000000000000000000 00000000000000000000000000000000
0000000 0000000
00000000000000000000000000000000 00000000000000000000000000000000
0000000 0000000
fffffffffffffffe0000000000000000 0000000000000001ffffffffffffffff
1111111 0000000

then UltraSim told me the last line is invalid! I noticed that when the
first character is not a number, it is invalid, no matter what the
radix is set. It should not be like that...
 

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