----- Original Message ----
From: Matthew Currie <address@hidden>
To: Paparazzi Devel <address@hidden>
Sent: Tuesday, January 29, 2008 6:05:19 AM
Subject: [Paparazzi-devel] Tiny13 1.1 / Servo Output
Group,
I
have
been
diagnosing
my
servo
output
problem
on
my
Tiny13
1.1
for
some
time
now.
I
put
the
Tiny13
under
a
20-400x
digital
microscope
and
verified
that
all
the
crucial
solder
joints
are
great.
I
currently
have
the
Tiny13
under
a
DSO
and
now
see
that
SERV_CLK
is
sending
what
looks
like
a
reasonable
clock,
the
SERV_RESET
is
sending
a
signal,
but
the
SERV_DATA
line
is
being
held
at
VCC
with
no
PPM
signal
present.
This
now
explains
why
my
servos
were
moving
to
extremes
and
binding
the
control
surfaces.
I
checked
the
SERV_DATA
line
all
the
way
to
the
LPC
pin
and
verified
it
is
held
high
there.
Is
there
something
obvious
I
am
missing?
Is
this
a
symptom
of
a
software
misconfiguration?
Did
anything
change
between
Tiny13
and
Tiny2
and
maybe
I
have
a
bit
of
code
crossed
over?
Thanks
guys.
Regards,
Matthew
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