[ECOS] mbx redboot not working !!

[Jonathan Larmour]

Nohee Ko wrote:
> 
> hi.
> I try to port mbx redboot to my mpc860 platform.
> my mpc860 platform is different from MBX board but very similiar to
> that.
> so I modified MBX redboot source little bit and compiled successfuly.
> then I fused redboot.srec to flash rom.
> but when I power up the platform, I cannot see anything without '+' on
> debug monitor.
> watching printing '+' on debug monitor, my platform seems to go
> successfuly by 'initialize_stub' function on vectors.S routine.
> But that's it. no more message. no RedBoot> message appears.
> I can't key in any character, either.

What did you change? How did you build?

If there is also a packet like $T05:1234567;0f etc. then that may indicate
it hit an exception on startup, e.g. by accessing an illegal address.

Why not just try sticking printf()s in cyg_start() in
redboot/current/src/main.c and seeing where it fails.

Jifl
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