HP75D and data acquisition unit HP3421A

[Sylvain Cote]

Maximilian and Jean-François have the solution.

Quote:Programming the HP 3421A with the HP-75D (using OUTPUT's and ENTER's) requires that the I/O ROM (part number 00075-15001) be installed in your HP-75D.

Quote:This section will also assume for simplicity that the minimum configuration consists of an HP-75D (with the I/O ROM) and an HP 3421A, and that the maximum configuration consists of the HP-75D, 3421A, printer (either an HP 82162A or an HP 2225B), and a mass storage device (either an HP 82161A or an HP 9114A).
If you have one of these configurations, and you have executed an ASSIGN LOOP (or AUTOLOOP ON) statement, the HP-75D should assign the following device codes:

Assuming only one device in the loop

Code:

autoloop on

Code:

   :E1  3421A Data Acquisition Unit

Your program but without the space between the single quote and the colon.

Code:

edit 'DCV'

Code:

   10 ! DCV HP 75/3421A
   20 REAL V
   30 CLEAR LOOP
   40 D=DEVADDR(':E1')
   50 OUTPUT D ; "DCV5"
   60 ENTER D ; V
   70 DISP V
   80 END

Code:

run