Re: Re: boot vxworks from ppcbug in mv5100

[zhuangjian <zhuangj@ihep.ac.cn>]

Hi  Matt,
  Thanks a lot for your replay.I think the flash bank A has some physical problem.
It can not be reprogramed in ppcbug.
  I have loaded vxworks bootrom and ramimage into ram by ppcbug.Some version of ram image
can run, but can not excute many shell command, like i, reporting instruction pointer 
exception.All version of bootrom can not run.I have checked the code of bootrom and find 
that at some instruction initializing memory part,bootrom will run fly.
  So, I have a question, is the memory map in ppcbug same as in vxworks?And what job should
I do in  _sysInit?Because there are so many difference between sysInit(sysAlib.s) and romInit(romInit.s),
I think maybe the initialization is incompleted in sysInit and do some job can not be done in romInit
for booting by ppcbug.
    
  Best Regards
------------------				 
zhuangjian
2009-02-03

-------------------------------------------------------------
发件人：Matt Rippa
发送日期：2009-02-03 08:11:11
收件人：zhuangjian
抄送：tech-talk
主题：Re: boot vxworks from ppcbug in mv5100

Hi zhuangjian -

Maybe someone else has tried this? I'm not sure you can boot
VxWorks in this way --at least not without some work on the image.

If bank A is not physically damaged, it may be easier to
re-flash the bootrom . This page has helped in the past,
assuming you have a known good bootrom.mv5100:

http://www.bio.aps.anl.gov/~dgore/beamline/EPICS/VME.html

Regards,
-Matt




zhuangjian wrote:
> hello,everyone
>    I have a mv5100 board with some problem in flash bank A. So, I want to boot vxworks 5.4 from ppcbug directly without flush 
> vxworks bootrom into flash. Now, I find some problem in memeory initialization progress. The program is flying.
>    So, who can give me some suggestions?
>    
>    Best wishes
>   
>  				
> --------------
> zhuangjian
> 2009-02-02
> 
>