debugger

[jarcher]

To add to Ron's message.

It varies a lot with your experience and how dirty you want to get.

A simple POST card and a lot of creative POST code bread crumbs is the 
cheap and dirty way to go, until you get the serial port debugger up and 
running.  But it requires you to be really creative in crawling through the 
code.  And takes a lot of time.

But you can move up the a logic analyzer looking at bus cycles or an ICE 
(in circuit emulator) looking at CPU activity  These two are expensive 
(lots of $10K), but you can often rent them.  Setup is usually the time 
burner here.  But with a LA you can take selective pictures of events 
chained together in time.  I don't know if SIS has an ICE for their SOC 
products.

Jordan

PS: Has anyone done a USB interface low level debugger?  Early BIOS or at 
least just prior to payload decompress.


At 12:00 PM 5/15/2003 -0400, you wrote:
>Message: 10
>Date: Thu, 15 May 2003 08:50:44 -0700 (PDT)
>From: Frank <frannk_m1 at yahoo.com>
>Subject: Re: debugger
>To: ron minnich <rminnich at lanl.gov>
>Cc: linuxbios at clustermatic.org
>
>sis55x SOC x86 based
>--- ron minnich <rminnich at lanl.gov> wrote:
> > On Thu, 15 May 2003, Frank wrote:
> >
> > > Can anyone recommend a debugger for bringing up LinuxBios on
> > an
> > > x86 system...
> >
> > what kind of chip? and how much money can you spend?
> >
> > ron