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@c  COPYRIGHT (c) 1988-2002.

@c  On-Line Applications Research Corporation (OAR).

@c  All rights reserved.

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@c  hwdebugaids.t,v 1.14 2002/01/17 21:47:44 joel Exp

@c

@chapter Hardware to Ease Debugging

The items in this category provide information on various hardware

debugging assistants that are available.

@section MC683xx BDM Support for GDB

Eric Norum (eric@@skatter.usask.ca) has a driver for a parallel

port interface to a BDM module.  This driver has a long history

and is based on a driver by Gunter Magin (magin@@skil.camelot.de)

which in turn was based on BD32 for DOS by Scott Howard.  Eric Norum

and Chris Johns (ccj@@acm.org) have put together a package containing

everything you need to use this BDM driver including software, PCB layouts,

and machining drawings.  From the README:

"This package contains everything you need to be able to run GDB on

Linux and control a Motorola CPU32+ (68360) or Coldfire (5206, 5206e, or

5207) target through a standard PC parallel port."

Information on this BDM driver is available at the following URL:

@example

http://www.calm.hw.ac.uk/davidf/coldfire/gdb-bdm-linux.htm

@end example

The package is officially hosted at Eric Norum's ftp site:

@example

ftp://skatter.usask.ca/pub/eric/BDM-Linux-gdb/

@end example

Peter Shoebridge (peter@@zeecube.com) has ported the Linux

parallel port BDM driver from Eric Norum to Windows NT.  It is

available at http://www.zeecube.com/bdm.

The efi332 project has a home-built BDM module and gdb backend for

Linux.  See http://efi332.eng.ohio-state.edu/efi332/hardware.html)

for details.  The device driver and gdb backend are based on those

by Gunter Magin (magin@@skil.camelot.de) available from

ftp.lpr.e-technik.tu-muenchen.de.

Pavel Pisa (pisa@@cmp.felk.cvut.cz) has one available at

http://cmp.felk.cvut.cz/~pisa/m683xx/bdm_driver.html.

Huntsville Microsystems (HMI) has GDB support for their BDM module

available upon request.  It is also available from their ftp site:

ftp://ftp.hmi.com/pub/gdb

The Macraigor OCD BDM module has a driver for Linux

written by Gunter Magin (magin@@skil.camelot.de).

No URLs yet.

Finally, there is a overview of BDM at the following URL:

http://cmp.felk.cvut.cz/~pisa/m683xx/bdm_driver.html.

Information in this section from:

@itemize @bullet

@item Brendan Simon 

@item W Gerald Hicks 

@item Chris Johns 

@item Eric Norum 

@item Gunter Magin 

@end itemize

@section MPC8xx BDM Support for GDB

@c "Adrian Bocaniciu"  has a driver

@c for NT and is willing to share it but he needs to be emailed

@c privately since he needs to explain somethings about it.

@c It has been used for over a year as of 08/18/99.

Christian Haan  has written a driver for FreeBSD

based for"a slightly changed ICD BDM module (because of changes

in the BDM interface on the PowerPC)" that "probably will work with

the PD module too."  His work is based on the M68K BDM work by

Gunter Magin (Gunter.Magin@@skil.camelot.de) and

the PPC BDM for Linux work by Sergey Drazhnikov (swd@@agua.comptek.ru).

This is not yet publicly available.

Sergey Drazhnikov (swd@@agua.comptek.ru) has written a PPC BDM driver for

Linux.  Information is available at http://cyclone.parad.ru/ppcbdm.

Huntsville Microsystems (HMI) has GDB support for their BDM module

available upon request.  It is also available from their ftp site:

ftp://ftp.hmi.com/pub/gdb

GDB includes support for a set of primitives to support the Macraigor

Wiggler (OCD BDM).  Unfortunately, this requires the use of a

proprietary interface and is supported only on Windows.  This forces

one to use CYGWIN.  Reports are that this results in a slow

interface.  Scott Howard (http://www.objsw.com) has announced

that support for the gdb+wiggler combination under DJGPP which should

run significantly faster.

@itemize @bullet

@item Leon Pollak 

@item Christian Haan 

@end itemize