HP 7470A Interfacing And Programming Manual page 178
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Also See for 7470A:
- Operator's manual (41 pages) ,
- Interfacing and programming manual (114 pages) ,
- Service manual (141 pages)
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A description of the instruction's parameters follows:
<DEC>
The first parameter is optional. If present, it is the
intercharacter delay. The delayimplementedis ((parame
ter X 1.1875)mod 65 536)/ 1.2 milliseconds. The parameter
range is 0 to 54 612. If parameters follow, the semicolon
must be included, even if this decimal parameter is
omitted.
<ASC> . . . <ASC>
This parameter is optional. If present, it is a list
of the decimal equivalents of 1 to 10 ASCII characters
in the range 0 to 127.For Xon-Xoff handshake mode,
it specifiesthe Xoff trigger character(s). Forenquire/
acknowledge handshake mode, it specifiesthe imme
diate response string. Semicolonsmust separate each
parameter in the list.
EXAMPLES
For Xon-XoffHandshake
. N;19:
Sets the Xoff trigger character to DC3. There will be no
intercharacter delay, since the first parameter is defaulted to zero by
the semicolon.
For Enquire/Acknowledge Handshake
The examples given here include all handshaking instructions. In
addition to illustrating the use of intercharacter delays and immediate
response strings set by ESC . N, they are designed to clarify the
difference between handshake mode 1 and'mode 2 and give some
insight into why certain values are logical choices for some parameters.
Note the CHR$ function is used to send the escape character.
I
10 DIM DUT$(80)
:30 PRINTCHR$(2?);".M0;B3;O;13:";CHR$(2?);".N5:"
so PRINT CHR$(2?);".H80;1B;4&3:"
so 0UT$="IN;SF'1;PR500,500;" :«-sosus 100
l00 PRINT CHR$(18):
INPUT 2: PRINT DUT$: RETURN
The following parameters are set in lines 40 and 50:
turnaround delay = 0,
output trigger character = ? (decimal equivalent 63),
no echo terminate character,
10-36
RS-232-C/CCITT V.24INTERFACING
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