---
+ Post New Thread
Results 1 to 2 of 2
  1. #1
    Junior Member level 1
    Points: 1,058, Level: 7

    Join Date
    Feb 2009
    Posts
    16
    Helped
    1 / 1
    Points
    1,058
    Level
    7

    set_dft_signal scan clock specification

    Is it possible to define a pin as the scan clock?
    Ex the output of a clock gen module as the scan clock in the set_dft_signal. I have been using the following statement set_dft_signal -view existing_dft -type ScanMasterClock -port CLK -timing [list 45 55], but now I came across a situation where I need to use the output port of an internal module.
    Any help will be appreciated

    •   Alt26th February 2009, 20:11

      advertising

        
       

  2. #2
    Junior Member level 3
    Points: 1,066, Level: 7

    Join Date
    Nov 2007
    Posts
    30
    Helped
    0 / 0
    Points
    1,066
    Level
    7

    Re: set_dft_signal scan clock specification

    I only used ports as ScanClock. But for scan shift/scan output stuff, I used internal signals, because I did not manually connect them to ports. I left the job to stitching tool to connect them.

    set_dft_signal -view spec -type ScanDataOut -port ioxxx -hookup_pin "uxxx/xxx"

    So it seems that you need to use "spec" instead of "existing" and use "hookup_pin" opt.

    But you should be able to manually connect, since dft can only control ports... the scan clock should be eventually from outside of the chip



+ Post New Thread
Please login