smaller HP 82166A with 32-pin connector

[J-F Garnier]

(04-08-2020 12:25 PM)KimH Wrote:  Here are the 2 pieces I use for my experiment - retyped.

The listener stops at line 20 and move no further

Code:


1 !LISTENER
2 RESTOREIO
5 A=DEVADDR(“%64“)
6 ! FROM CONTROL THE WORLD P178 – LOOKS CORRECT 
7 SEND UNT UNL MTA LISTEN A DDL 0 DATA 226,16,24 UNT UNL
10 FOR I=1 TO 10
20 ENTER :A ;B$
25 DISP B$
30 NEXT I 

1 !TALKER (sends CHARS - seemingly)
2 RESTOREIO
3 ENDLINE””
5 A=DEVADDR(“%64“)
9 ! FROM CONTROL THE WORLD p33 – LOOKS CORRECT
10 SEND UNT UNL MTA LISTEN A DDL 0 DATA 74,16,208 UNT UNL
20 FOR I=1 TO 63
25 X$=CHR$(I+64)
30 OUTPUT :A ;X$
31 DISP I; X$
40 NEXT I

Are you using 2 HP-71B, one on each side? Otherwise you must address the 2 converters with their own addresses.

That sounds quite complicate to just send bytes from one converter to the other.
You may start using the default control register setting and just do
OUTPUT 1;A$ on one side and ENTER 2;B$ on the other side.
Be sure to restore the default ENDLINE condition! otherwise it will not work.

To be more specific, I believe your test code above may hang at line 20 because the ENTER statement doesn't find a string terminator (since you disabled it with ENDLINE "").

J-F