Re: Board boots when in BDM, hangs otherwise

Jim Lewis wrote:

Hi Josh,

..

Ther is one register that the IN command sets that it does not tell you about. That
is the ICTRL register, which controls serialization of the core, among other
things. On powerup, it is set to SHOW-ALL-INSTRUCTION-FETCH-CYCLES. Some 8xx
processors have problems with this. Read the errata. Check to make sure you are
setting ICTRL to something like 0x07 in your firmware.

-Jim

This is also probably the source of your slowdown when running
off of BDM.

Also make sure the watchdog is disabled (Dan's code does this, I think).

If anyone is interested, I can post the startup file I use for
running from flash on the FADS board using Metrowerks.  I finally
figured out a way that I can run the same flash image standalone,
and through MPC8bug.

--
MPC823 Applications Engineering Development

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