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print values for dc analysis

AndyWangsh

I'm currently using spectre for the dc analysis for a simple NMOS, represented as 

mn0 (d_n g_n 0 b_n) g45n1svt w=w_n l=l_n

vg_n_inst (g_n 0) vsource dc=vg_n

I would trying to save the mn0:vsat for individual vg_nvalue  to the log file or other files for the dc analysis:

dc_a dc param=vg_n start=0 stop=2 step=0.01 save=all print=yes  

I also added the following at the end of scs file:

outputInfo info what=output where=logfile
element info what=inst where=logfile

However, there is no vdsat printed in the log file or elsewhere. 

I tried to search over the Spectre® Simulator Fundamentals course & the spectre manual, but it seems like I cannot find the solution out there. 

I'm not sure what could be the possible solution. I would expect similar results as .print mn0:vdsat if written in SPICE. 

Thanks in advance. 

Parents

  • Dear AndyWangsh,

    AndyWangsh said:

    I would trying to save the mn0:vsat for individual vg_nvalue  to the log file or other files for the dc analysis:

    dc_a dc param=vg_n start=0 stop=2 step=0.01 save=all print=yes  

    I also added the following at the end of scs file:

    outputInfo info what=output where=logfile
    element info what=inst where=logfile

    However, there is no vdsat printed in the log file or elsewhere. 

    According to the Spectre reference manual, the "print" argument to the dc analysis command refers to printing the node voltages and not the operating point information. If you want to observe the operating point information, I might suggest you refer to the response to the recent Forum post at URL:

    https://community.cadence.com/cadence_technology_forums/f/custom-ic-design/52194/results-display-window/1384734#1384734

    There are 3 links that include a video on how to save operating point information, a troubleshooting article on the subject, and a means to print the DC oeprating point information to a file.

    Shawn

Reply

  • Dear AndyWangsh,

    AndyWangsh said:

    I would trying to save the mn0:vsat for individual vg_nvalue  to the log file or other files for the dc analysis:

    dc_a dc param=vg_n start=0 stop=2 step=0.01 save=all print=yes  

    I also added the following at the end of scs file:

    outputInfo info what=output where=logfile
    element info what=inst where=logfile

    However, there is no vdsat printed in the log file or elsewhere. 

    According to the Spectre reference manual, the "print" argument to the dc analysis command refers to printing the node voltages and not the operating point information. If you want to observe the operating point information, I might suggest you refer to the response to the recent Forum post at URL:

    https://community.cadence.com/cadence_technology_forums/f/custom-ic-design/52194/results-display-window/1384734#1384734

    There are 3 links that include a video on how to save operating point information, a troubleshooting article on the subject, and a means to print the DC oeprating point information to a file.

    Shawn

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