Re: Debugger board for P4 ECMs

["nacelp" <nacelp@bright.net>]

I got a working 165 that I can loan you.
Grumpy

Can some one step up and clearify what a debug is?

> If no one else steps up to the plate, I'll lay out a PCB, work up
> estimates for PCBs, etc.  I don't have a 1227165, so I won't be able to
> test it,
> or get board dimentions.  If someone is willing to help me with the size,
> I'll start laying out a PCB.
>
> - Steven Ciciora
>
> > aussie 808. Very interesting. Ludis have you designed a PCB yet?
> >
> > Cheers Richard.
> > >
> > > Ludis Langens wrote:
> > > >
> > > > I've added a simple schematic to my web pages.  It is at:
> > > >   http://www.cruzers.com/~ludis/p4test.gif
> > > >
> > > > The schematic is of a little peripheral board for P4 ECMs.  It plugs
> > > > onto the edge card test connector of a P4 ECM.  Everything fits on a
> > > > circuit board small enough to fit inside the case of a 1227165.
> > > >
> > > > The added peripherals let me run a debugger in a P4 ECM.  This is
very
> > > > useful for figuring out how the hardware works.  The schematic shows
a
> > > > Mac style RS422 serial port.  This could be changed to RS232 with a
DB9
> > > > connector for use with PCs.  Is anyone interested in building a
copy?
> > > >
> > > > --
> > > > Ludis Langens                               ludis (at) cruzers (dot)
com
> > > > Mac, Fiero, & engine controller goodies:
http://www.cruzers.com/~ludis/
> > > >
> > > >
> >
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> > > --
> > > Steve Ravet
> > > steve.ravet@arm.com
> > > Advanced Risc Machines, Inc.
> > > www.arm.com
> >
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