Having a little trouble on an MCP750

[Eric Valette]

gregory.menke at gsfc.nasa.gov wrote:
> 
> It actually worked once, the sample programs ran OK and we were
> proceeding with porting some software to RTEMS.  Until I reconfigured
> RTEMS, after which all images I load fail at IP 5000 with an invalid
> instruction;
> 
> 00005000 7F454C46  WORD        $7F454C46
> 
> Subsequently I've tried a bunch of different ./configure approaches;
> different directories, combinations of options, etc- and all give the
> same result.  I've also tried reloading the rtems source and ppc cross
> compilers.  My host os is Linux, if I target it instead, everything
> runs OK.
> 
> On the target board, the binaries are loaded by tftp from a server.
> The logs show the connection and retrieval, cooroborated by the
> mcp750's console messages.
> 
> I'm suspecting I'm doing something stupid, as the error is resolutely
> the same- but any hints are welcome as I'm at something of a loss.

You are probably using either the wrong binary (elf image instead of
Prep bootable image) or misconfiguread the network loader that must be
setup to be PREP compliant... See readme's...

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