Have a look at lab 6 on cmosedu.com, maybe the LTSPICE or IRSIM example
there can help:
http://cmosedu.com/jbaker/courses/ee421L/f13/students/solori12/lab6/lab6.htm
If you cannot generate the waveform that you want with PULSE, maybe it
can be created from a PWL statement or PWL File instead:
http://www.analog.com/en/technical-articles/ltspice-piecewise-linear-functions-for-voltage-current-sources.html
On 4/2/2018 1:33 PM, Salar Parast wrote:
Hello Justin,
Thanks so much for your quick reply.
I know it is a great idea to learn SPICE and I can't argue with that.
Beside the help files of LTSpice, is there any other reference that
you recommend which would be helpful in this specific case?
Also I have found some codes that generates the pulse waveform that I
want like the CLK and RST, but how would you go about the input, if we
need a random pulse such as the one I mentioned before.
Thanks again for all your help.
Best,
Salar
On Saturday, March 31, 2018 at 11:50:31 PM UTC-7, Justin Spencer wrote:
Hello Salar,
Good day! How are you?
I see you're using pass transistor logic in you're design.
Regarding testing, I encountered the same problem when I made an
arithmetic unit.
So I instantiated the power supplies via SPICE code instead.
If you're unfamiliar with the syntax as you mentioned, I think it
would be best to learn it (trust me you'll thank me later, it will
give you a lot of flexibility in your simulations). And it's not
that hard. When I was starting, I just relied on the help files in
LTSpice which have proven to be of great use.
Cheers!
Justin
On Sunday, 1 April 2018 10:34:10 UTC+8, Salar Parast wrote:
Hi all,
For my project I have to make a SIPO shift register using D-FF
and transmission gates.
I have made the schematic of the D-FF, and now I would like to
test my design and see if my shift register is working properly.
How can I make a pulse for my clk with fixed duration?
Also I would like to give some random sequence like
01000111101010101 to my input to capture the shifting
perfectly, how could I go about this?
I would prefer to use the Electric's own simulation since I
am not familiar to spice and coding this in LTspice.
Any help would be appreciated.
Best,
Salar
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