Email

* Required Fields

Recipients email * (separate multiple addresses with commas)

Your name *

Your email *

Message *

Contact Us

* Required Fields
First Name *

Last Name *

Email *

Company / Institution *

Comments: *

 Xtreme run modes? 

Last post Tue, Oct 10 2006 7:07 PM by archive. 3 replies.
Started by archive 10 Oct 2006 07:07 PM. Topic has 3 replies and 1968 views
Page 1 of 1 (4 items)
Sort Posts:
  • Tue, Oct 10 2006 7:07 PM

    • archive
    • Top 75 Contributor
    • Joined on Fri, Jul 4 2008
    • Posts 88
    • Points 4,930
    Xtreme run modes? Reply

    In Xtreme, what are the differences between the run, tbrun and autorun modes?

    Thanks for the help!

    davea


    Originally posted in cdnusers.org by davea
    • Post Points: 0
  • Wed, Oct 11 2006 3:54 PM

    • archive
    • Top 75 Contributor
    • Joined on Fri, Jul 4 2008
    • Posts 88
    • Points 4,930
    RE: Xtreme run modes? Reply

    Xtreme supports running the design in three modes:

    run mode:
      Run mode is generally used for acceleration testcases, where DUT runs in RCC engine
    and Testbench runs in xsim simulator.The simulation performances in this case is generally determined by software components running in xsim simulator.

    autorun mode:
      autorun mode is mostly used for in-circuit emulation and targetless emulation  modes.In autorun all the modules must be compiled for RCC engine and also all the clocks must be generated from axis_clkgen module.autorun ignores all CLI commands after HW swap, and any control must be done manually by pressing CTRL-C  and typing commands on CLI or through axis tbcall mechanism.

    tbrun:
      tbrun is very similar to autorun(has all the requirements of driving clocks from axis_clkgen and no module can run in XSIM SW) except it enables behavioural
    delay control.This mode is mainly used for TBA(Transaction based acceleration using xtremeTBA libraries) applications.
     i.e C1>##600 $stop; will be honoured.(ignored in autorun mode).

    Please refer to Xtreme documentation for more details.
    Thanks,
    DGill





    Originally posted in cdnusers.org by DGill
    • Post Points: 0
  • Wed, Oct 11 2006 3:54 PM

    • archive
    • Top 75 Contributor
    • Joined on Fri, Jul 4 2008
    • Posts 88
    • Points 4,930
    RE: Xtreme run modes? Reply

    The run command ($rcc(run);) is used for acceleartion. It allows the DUT to execute in RCC engine, and the remaining parts of the design and testbench run in XSIM software simulator. In run mode, user can have delay control from the CLI.

    The autorun command ($rcc(autorun);) allows the DUT to execute in In-Circuit Emulation (ICE)
    mode. It enables internal clock generation. This gives you the highest performance possible in
    Xtreme. We have two kinds of ICE, one is targetless emulation and the other one is target emulation.
    In autorun, user can not have delay control from the CLI. The only way to stop $rcc(autorun); from the Command Line Interface (CLI) is to press the Ctrl-C key and swap back to simulation mode.

    The $rcc(tbrun); command enables delay control in targetless emulation. $rcc(tbrun);
    mode has both the performance of $rcc(autorun); mode and the flexible delay control of $rcc(run);
    mode.


    Originally posted in cdnusers.org by fan
    • Post Points: 0
  • Fri, Oct 13 2006 9:34 AM

    • archive
    • Top 75 Contributor
    • Joined on Fri, Jul 4 2008
    • Posts 88
    • Points 4,930
    RE: Xtreme run modes? Reply

    One should also consider PI (primary input) and PO(primary output) sychronization when using discussing these modes.

    $rcc(run): Both PI and PO events are propagated and cause synchronization
    $rcc(tbrun: Only PI events are propagated as scheduled, PO events are propagated only when there is a tbcall synchronization (axis_tbcall, tbcall region, DPI call).
    $rcc(autorun): No PI or PO event synchronization can take place, only tbcall sync. is supported.

    Also keep in mind that it is possible to dynamically switch design into different modes at run time, e.g. run to tbrun mode or vice-versa.

    -ashutosh


    Originally posted in cdnusers.org by ashvarma
    • Post Points: 0
Page 1 of 1 (4 items)
Sort Posts:
Started by archive at 10 Oct 2006 07:07 PM. Topic has 3 replies.