Bootloader (Boot Loader)?

Ed Sutter esutter at alcatel-lucent.com
Fri Oct 3 17:39:16 UTC 2008


Gene,
I have booted RTEMS apps with MicroMonitor.  This is a bootloader
that runs on most of the common CPUs, has its own NOR-based flash
file system (onto which you would install your RTEMS image), and
has networking, and a lot of other features you can configure in if
needed.  If interested, take a look at
http://www.microcross.com/html/micromonitor.html

What CPU are you using?

Ed Sutter

Gene Smith wrote:
> So far I have just been loading my RTEMS image to RAM via jtag and 
> running with a debugger. I would like to burn the image to Flash, along 
> with a boot loader of some sort, and have the loader copy the image to 
> RAM and beginning running. This would be a fairly rudimentary boot 
> loader just to get started.
> 
> Looking through the rtems archives I see some old references to Chris 
> John's "My Right Boot" and "Eric Norum's boot loader". Otherwise I can't 
> find these mentioned anywhere on RTEMS site (looked in ftp: contribs 
> etc.) or web.
> 
> I also see mention of Till's CEXP loader. If I understand it, it loads 
> random rtems applications. Not quite what I am looking for I don't think.
> 
> My board has no built-in boot loader, so I need to do something from 
> scratch. Ideally, the boot loader would need to do more such as possibly 
> help with f/w upgrade via network. I think this might require something 
> like u-boot or redboot. I think u-boot supports RTEMS but have not seen 
> it mentioned except on Erwin Rol's rtems/u-boot site and not updated 
> since maybe 2003. I have seen mention also of boards running RTEMS that 
> have built-in u-boot and how to deal with it, but not how to join u-boot 
> and RTEMS yourself.
> 
> Just wondering what others are doing for a boot loader.
> 
> Thanks,
> -gene
> 
> 
> 
> 
> 
> 
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