
89-6 Signal Processing
considerably exceed the hardware costs. In such circumstances, the ability to reuse existing code and
th
e
ac
cess
to po
werful
de
velopment
sy
stems
an
d
de
bugging
too
ls
ar
e
of cr
ucial
im
portance
. So
me
de
bug
so
ware
on
ly
pr
ovides
su
pport
fo
r
st
epping
th
rough
th
e
op
eration
of co
de
wr
itten
at th
e
as
sembly
co
de
le
vel
. Wh
en
de
veloping
de
vice
dr
ivers,
fo
r
ex
ample,
ac
cess
to a so
urce-level
de
bugger
wh
ich
ca
n
li
nk
th
e
ex
ecution
o
f
c
ode
w
ritten
i
n
a h
igh-level
l
anguage
to t
he
c
ontents
o
f
p
rocessor
r
egisters
i
s
u
seful
.
Many SBCs that are intended for operation as stand-alone microcontrollers, instead of in bus-based
sy
stems,
ar
e
o
en ...