AnsweredAssumed Answered

56F805 Pins During Reset

Question asked by Joe Johnson on Oct 21, 2007
Latest reply on Nov 30, 2007 by Joe Johnson
My prototype boards are about a year old - they are using:
MPN: DSP56F805FV80,
LOT: CN13700B01
DTE: 0430

Per the documentation here when the DSP56F805 goes into "Reset State" these pins are supposed to become "Tri-State Input" or "inputs"
GPIOE2
GPIOE3
GPIOD0
GPIOD1
GPIOD2
GPIOD3
GPIOD4
GPIOD5
TC1

When I pull RESET and TRST low, the device is supposed to go into Reset State.

BUT...

...All the outputs are going to 2.5V (high).

What can I be doing wrong?

This is a huge safety issue for my robot design.  I cannot go forward if this cannot be addressed in some way.  Please Help.

Joe J.
--
Joseph M. Johnson, Ph.D., P.E.
Chief Technologist, Co-Founder
Robotic Amusements, Inc

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