2500_Users_Manual- - 第332页
S0000 XFFFFFFFFFFFFFFFFC XFFFFFFFFFFFFFFFFC XFFFFFFFFFFFFFFFFC XFFFFFFFFFFFFFFFFC XFFFFFFFFFFFFFFFFC XFFFFFFFFFFFFFFFFC XFFFFFFFFFFFFFFFFC XFFFFFFFFFFFFFFFFC XFFFFFFFFFFFFFFFFC XFFFFFFFFFFFFFFFFC * Start Record S = Start…
!M0000 ,
FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF,
FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF,
FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF,
FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF,
FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF
Start Record
!M or ?M = Start Characters
0000 = Address
End-of-File Record
1
2
Data Records
FF =
, =
; =
2 Hex Characters = (1 Byte)
Bytes per record is variable
End of Record Character
End of Record Character
if followed by expressed
address
LEGEND
Nonprinting line feed, carriage return, and nulls
Nonprinting carriage return
1
2
0079-2
Translation
Formats
RCA
Cosmac
Format,
Code
70
Data
in
this
format
begin
with
a
start
record
consisting
of
the
start
character
(!M
or
?M),
an
address
field,
and
a
space.
See
Figure
D-7.
Figure
D-7
An
Example
of
RCA
Cosmac
厂
Format
'
1
on
o
The
start
character
?M
is
sent
to
the
programmer
by
a
development
system,
followed
by
the
starting
address
and
a
data
stream
which
conforms
to
the
data
input
format
described
in
the
ASCII-Hex
and
Octal
figure.
Transmission
stops
when
the
specified
number
of
bytes
has
been
transmitted.
Address
specification
is
required
for
only
the
first
data
byte
in
the
transfer.
An
address
must
have
1
to
4
hex
characters
and
must
be
followed
by
a
space.
The
programmer
records
the
next
hexadecimal
character
after
the
space
as
the
start
of
the
first
data
byte.
(A
carriage
return
must
follow
the
space
if
the
start
code
?M
is
used.)
Succeeding
bytes
are
recorded
sequentially.
Each
data
record
is
followed
by
a
comma
if
the
next
record
is
not
preceded
by
an
address,
or
by
a
semicolon
if
it
starts
with
an
address.
Records
consist
of
data
bytes
expressed
as
2
hexadecimal
characters
and
followed
by
either
a
comma
or
semicolon,
and
a
carriage
return.
The
programmer
ignores
any
characters
received
between
a
comma
or
semicolon
and
a
carriage
return.
The
carriage
return
character
is
significant
to
this
format
because
it
can
signal
either
the
continuation
or
the
end
of
data
flow;
if
the
carriage
return
is
preceded
by
a
comma
or
semicolon,
more
data
must
follow;
the
absence
of
a
comma
or
semicolon
before
the
carriage
return
indicates
the
end
of
transmission.
Output
data
records
are
followed
by
either
a
comma
or
a
semicolon
and
a
carriage
return.
The
start-of-file
records
are
expressed
exactly
as
for
input.
ProMaster
2500
User
Manual
D-21
S0000
XFFFFFFFFFFFFFFFFC
XFFFFFFFFFFFFFFFFC
XFFFFFFFFFFFFFFFFC
XFFFFFFFFFFFFFFFFC
XFFFFFFFFFFFFFFFFC
XFFFFFFFFFFFFFFFFC
XFFFFFFFFFFFFFFFFC
XFFFFFFFFFFFFFFFFC
XFFFFFFFFFFFFFFFFC
XFFFFFFFFFFFFFFFFC
*
Start Record
S = Start Character
0000 = Address Field
End-of-File Record
Data Records
X =
FF =
C =
Data Record Start Character
2 Hex Characters (1 Byte)
Checksum. 1-digit summation
of data in record
0080-2
Translation
Formats
Fairchild
Fairbug,
Code
80
In
the
Fairbug
format,
input
and
output
requirements
are
identical;
both
have
8-byte
records
and
identical
control
characters.
Figure
D-8
shows
a
Fairbug
data
file.
A
file
begins
with
a
5
-character
prefix
and
ends
with
a
1
-character
suffix.
The
start-of-file
character
is
an
S,
followed
by
the
address
of
the
first
data
byte.
Each
data
byte
is
represented
by
2
hexadecimal
characters.
The
programmer
will
ignore
all
characters
received
prior
to
the
first
S.
Note:
Address
specification
is
optional
加
this
format;
a
record
with
no
address
directly
follows
the
previous
record.
Each
data
record
begins
with
an
X
and
always
contains
8
data
bytes.
A
1
-digit
hexadecimal
checksum
follows
the
data
in
each
data
record.
The
checksum
represents,
in
hexadecimal
notation,
the
sum
of
the
binary
equivalents
of
the
16
digits
in
the
record;
the
half
carry
from
the
fourth
bit
is
ignored.
The
programmer
ignores
any
character
(except
for
address
characters
and
the
asterisk
character,
which
terminates
the
data
transfer)
between
a
checksum
and
the
start
character
of
the
next
data
record.
This
space
can
be
used
for
comments.
Figure
D-8
—
An
Example
of
Fairchild
Fairbug
The
last
record
consists
of
an
asterisk
only,
which
indicates
the
end
of
file.
D-22
ProMaster
2500
User
Manual
;100000FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF1000
;100010FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF1010
;100020FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF1020
;100030FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF1030
;100040FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF1040
;0000050005
Sumcheck of record including
data, address and byte count
Data Records
End-of-File Record
Record Count Sumcheck
Start Character
Byte Count
Address Field
LEGEND
Nonprinting Carriage Return, line feed,
and nulls determined by null count
0081-2
Translation
Formats
JL
Figure
D-9
An
Example
of
MOS
Technology
Format
MOS
Technology
Format,
Code
81
The
data
in
each
record
are
sandwiched
between
a
7-character
prefix
and
a
4-character
suffix.
The
number
of
data
bytes
in
each
record
must
be
indicated
by
the
byte
count
in
the
prefix.
The
input
file
can
be
divided
into
records
of
various
lengths.
Figure
D-9
shows
a
series
of
valid
data
records.
Each
data
record
begins
with
a
semicolon.
The
programmer
will
ignore
all
characters
received
prior
to
the
first
semicolon.
All
other
characters
in
a
valid
record
must
be
valid
hexadecimal
digits
(0-9
and
A-F).
A
2-digit
byte
count
follows
the
start
character.
The
byte
count,
expressed
in
hexadecimal
digits,
must
equal
the
number
of
data
bytes
in
the
record.
The
byte
count
is
greater
than
zero
in
the
data
records,
and
equals
zero
(00)
in
the
end-of-file
record.
The
next
4
digits
make
up
the
address
of
the
first
data
byte
in
the
record.
Data
bytes
follow,
each
represented
by
2
hexadecimal
digits.
The
end-of-file
record
consists
of
the
semicolon
start
character,
followed
by
a
00
byte
count,
the
record
count,
and
a
checksum.
The
checksum,
which
follows
each
data
record,
is
a
2
-byte
binary
summation
of
the
preceding
bytes
in
the
record
(including
the
address
and
byte
count),
in
hexadecimal
notation.
ProMaster
2500
User
Manual
D-23