HP 8920A Programmer's Manual page 375

Receive and Transmit Pacing
Table 41
Field
Serial In
IBASIC Echo
Inst Echo
Serial Baud Rate
Parity
Data Length
Stop Length
Rcv Pace (receive pacing)
Xmt Pace (transmit pacing)
When receiving characters into the
microprocessor responds to each entry and no buffering is required. Therefore,
when using your PC or terminal to send characters to the
field, it is permissible to set
Line
When sending data through the Test Set's Serial Port to external devices like
printers which may have small input buffers, it is important to set
to
Xmt Pace Xon/Xoff
the Test Set when the printer's buffer is full and then start it again when the printer
is ready.
The Test Set has a Serial Port input buffer length of 2000 characters with
firmware revision A.09.04. Buffer size becomes important when IBASIC
programs expect to receive large amounts of data through the Serial Port with a
single ENTER statement.
Test Set Serial Port 9 Configuration
Inst/IBASIC
On/Off
On/Off
150, 300, 600, 1200, 2400, 4800,
9600, 19200
None, Odd, Even, Always 1,
Always 0
7 bits, 8 bits
1 bit, 2 bits
None, Xon/Xoff
None, Xon/Xoff
Interfacing to the IBASIC Controller using Serial Ports
IBASIC Command Line
Rcv Pace
. This allows the printer to stop data transmission from
Available Settings
Chapter 7, IBASIC Controller
field, the Test Set's
IBASIC Command
and to
Xmt Pace None
Rcv Pace
Recommended Setting
Inst
On
On
9,600
None
8 bits
1 bit
Xon/Xoff
Xon/Xoff
.
and
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