HP 8340b Operating Instructions

Here is a BASIC example of reading the status registers:
100 FOR N = 0 TO 6
110 STATUS 7, N; S
120 PRINT "STATUS REGISTER"; N
130 PRINT
140 FOR J = 0 TO 7
ISO PRINT "BIT"; J; , , = ";BIT; (S,J)
160 NEXT J
170 PRINT
180 NEXT N
Direct Writing to the HP-IB Lines
The final programming technique covered in this manual involves direct writing to the HP-IB data,
handshake, and control lines. This is very advanced programming, and should be attempted only by
experienced programmers who are thoroughly familiar with the HP 8340B/41B and HP-IB
protocols.
| CAUTION J
Bus malfunctions or damage can result from errant applications of direct
writing to HP-IB lines.
Direct writing to the HP-IB lines is accomplished by the CONTROL statement, which has this syntax:
HP 9826/9836:
~( »e»°'q WTH .s's. HfQ-H as HaK
register
number
c
WRITEIO
>1
interface
select code
b-GH
register
number
KDH
register
data
The CONTROL statement (ASSERT, READIO/WRITEIO are related statements used by some com¬
puters) is used to send information to the computer’s control registers, which have bit patterns that
correspond to the HP-IB lines. The bit pattern of the control registers is computer specific; Figure 3-28
shows representative control registers from the HP 9826 and HP-85A computers.
HP 8340B/41B
Operating Information

HP 8340b Specifications

General

Brand	HP
Model	8340b
Category	Inverter
Language	English