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Using Print in Spectre

TimCoyle

Hi,

I am trying to use the print command in Spectre for a transient analysis to save the voltage of an output node to an external file. I would like for the time step to be used in the print results so for example if my time step=0.1ns than the node voltage printed in the external file will have a time step of 0.1ns. 

Here's what I have for syntax:

TranName1 tran start=0 stop=7ns step=.0035ns

PRINT RWF_GND= v(rwf_gnd), FWF_GND = v(fwf_gnd), RWF_VCC= v(rwf_vcc), FWF_VCC= v(fwf_vcc), name=allvttyp to="all_vt_typ.lis"

This is acutally an HSPICE netlist that I am running in spice compatible mode and I did try to use the following HSPICE syntax to save the output voltage nodes to a .print file but again I could not get the correct time step in the output data:

.tran 0.0035ns 7.0ns START=10ns

.PRINT TRAN
+ RWF_GND      = v(rwf_gnd)
+ FWF_GND      = v(fwf_gnd)
+ RWF_VCC      = v(rwf_vcc)
+ FWF_VCC      = v(fwf_vcc)

If anyone has any insight on using either method to get the output data with the correct time step let me know!

 

Best,

 Tim

 

Parents

  •  Hi Tawna,

    I think I actually figured it out. I had the .option ingold card and I think by default ingold is set to 1. When I set it to 2 than I appear to get the correct formatting. I can't quite remember the difference between the 1 and 2 setting but I think one of them is supposed to be a fixed scientific notation format. 

     Best,

    Tim

     

Reply

  •  Hi Tawna,

    I think I actually figured it out. I had the .option ingold card and I think by default ingold is set to 1. When I set it to 2 than I appear to get the correct formatting. I can't quite remember the difference between the 1 and 2 setting but I think one of them is supposed to be a fixed scientific notation format. 

     Best,

    Tim

     

Children
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