Re: Can I noise hang a ColdFire forever...?

Karl Paton <[email protected]>
Newsgroups gmane.comp.hardware.motorola.microcontrollers.coldfire
Message-ID <[email protected]>
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Ricardo,

> *- Is there a way to know if ColdFire is simply stopped due to lack of 
> enabled protections from the programmer fail (me!) , or stopped 
> because the core got latched up or some condition like this, due to 
> such disturb?Ex. verifying current consuption?*

I don't know the Coldfire well but with the 68K enough noise can lead to 
a double bus fault (exception upon an exception) which will halt the 
processor.
If the double bus fault monitor is enabled the processor will reset 
itself but, if not, it will just halt/hang and can only be restarted 
with an external reset.

It seems the Coldfire has a similar "fault-on-fault" halt which might 
the culprit.  Maybe worth looking at?

Regards,
Karl

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