On 07/03/2013 12:36 PM, Mark Morgan Lloyd wrote:
So there's a (slight) risk that a careless kernel on the main CPU
could mess up something safety-critical, or at least (as you've said)
could have a small effect on timing.
Not at all if you only use the PRUS vicinity hardware interface. If you
use other peripherals you need to take the possible delays into account.
I did not investigate so deeply that I should know about priorities of
the bus accesses.
To learn more, you might want to read the "AM335x Applications
Processor Technical Reference Manual" by TI (4788 pages).
That I'll leave to the colleague who hassles me on this sort of thing :-)
Please let me know about the your plans and solutions you come up with.
Of course you / he can send me a private email with questions and comments.
-Michael
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