Re: Angel not present

[Fernando Nasser <fnasser at redhat dot com>]

"Lewin A.R.W. Edwards" wrote:
> 
> Hi Fernando,
> 
> > > > > >2) Old versions of Cygwin had a problem with the serial port.  The
> > > > >
> > > > > I have observed this problem with Cygwin 1.1.8, which is the currently
> > >
> > > I am observing the problem _right now_ on this Win2000 system. It's not a
> >
> >In this case, I think you should post a note to the Cygwin people.  They
> 
> I don't believe it's a Cygwin problem, though. I am told, and believe, that
> it's an Angel bug.
> 
> If you happen to have an AT91EB40 there, try using it with gdb 5.0 at
> 115200bps. For me, it locks up right after the "Angel Debug Monitor.."
> sign-on message, more than 9 times out of 10. This is consistent with what
> I've been told about gdb and angel not switching speeds at the same time.
> 

I was looking and some list messages and it seems that GDB 5.0 does have
a problem with RDI on Cygwin.  Everyone who switched to a recent GDB
snapshot said that the problem disappeared. 

It may well worth a shot.



> When this happens, gdb is locked up and the entire cygwin session needs to
> be killed in order to proceed. That is under cygwin 1.1.8 under Win2000.
> 
> Now for another reliability test: I load a simple hello world program and
> stepi through it (connected at 9600bps). I try it three times and it stops
> in a different place each time. When I don't step it, it runs perfectly
> (it's an infinite loop, and it keeps running blinking LEDs, so I know it's
> not just randomly stopping after some amount of time).
> 
> I've never had these sorts of problems using gdb talking to gdb stubs, but
> they seem endemic to Angel use.
> 
> >it may become irrelevant -- Microsoft stopped selling Win9x altogether.
> >It seems that there is no current way of buying it, just Millennium and
> >2000.
> 
> WinME is pretty much 9x with 2000's icons (and a god-awful media player
> applet that takes over your whole life). MS is trying to get the home user
> market firmly weaned off DOS with Windows XP (Whistler) but I am not
> holding my breath... billions of dollars in unsupported legacy peripherals
> out there.
> 
> >I still don't understand why I don't see this problem.  We must have
> >some different setup somewhere.  I haven't done anything too heavy in
> >the 2000 machine though, only in the NT4.0 one.  Would it be some 2000
> >problem?  I think you should definitively post to the Cygwin list...
> 
> I have an NT4.0 (server) box next to me, I quickly tried the 115200bps test
> above and it hung exactly the same way. I haven't tried any further testing.
> 
> === Lewin A.R.W. Edwards (Embedded Engineer)
> Work: http://www.digi-frame.com/
> Personal: http://www.zws.com/ and http://www.larwe.com/
> 
> "Und setzet ihr nicht das Leben ein,
> Nie wird euch das Leben gewonnen sein."

-- 
Fernando Nasser
Red Hat Canada Ltd.                     E-Mail:  fnasser@redhat.com
2323 Yonge Street, Suite #300
Toronto, Ontario   M4P 2C9