I have a manual for the MVME-224A board thanks to the kindness of a 
stranger.  It's at home right now, but I can get you the details of the 
config switches later tonight.  If you don't hear from me in a day or so, 
just ping me...I might forget. 

Ken 

Bernd Walter writes: 

> Copyright Motorola Inc. 1988, All Rights Reserved
>  
> MVME141 Debugger/Diagnostics Release Version 1.7 - 9/30/88
> FPC  passed test
> MMU  passed test 
> 
> COLD Start
> C        MPU Address Mode test................... Running --->
> Exception: Local WPBERR
> PC=FFF060D6 SR=2700
> Format/Vector=0100 
> 
> 1) Continue System Start-up
> 2) Select Alternate Boot Device
> 3) Go to System Debugger
> 4) Initiate Service Call
> 5) Display System Test Errors
> 6) Dump Memory to Tape
> Enter Menu #: 5 
> 
> Local Bus Time-out 
> 
> Exception: Long Bus Error
> PC=FFF1B320 SR=2704
> Format/Vector=B008
> SSW=0755 Fault Addr.=00000000 Data In=000000FF Data Out=FFF1B322 
> 
> 1) Continue System Start-up
> 2) Select Alternate Boot Device
> 3) Go to System Debugger
> 4) Initiate Service Call
> 5) Display System Test Errors
> 6) Dump Memory to Tape 
> 
> The board has no onboard RAM beside of cache.
> From what I understand addressing to VME RAM failed because of a
> timeout, but bus abritation succeded?
> And the RAM needs to start at address 0x0.
> I have a MVME 224A-4 RAM board installed. 
> 
> I am not shure about the configuration and backplane requirements.
> I have no documentaion about these boards. 
> 
> -- 
> B.Walter              COSMO-Project         http://www.cosmo-project.de
> ticso@cicely.de         Usergroup           info@cosmo-project.de 
>