HP Forum Archive 09

[ Return to Index | Top of Index ]

HP71B - how slow can it be? Message #1 Posted by Thomas Falk on 9 Nov 2002, 7:03 a.m. Hi everybody, I have a HP71B with a HPIL module and this machine seems to be very slow. In the program 10 a=0 20 print a 30 a=a+1 40 goto 20 one loop needs 3 seconds after a complete reset (attn-/ and 3). After switching off the HPIL by "off io" one loop needs 0.6 seconds only. But I have seen it running with about 10 loops per second once, but cannot reconstruct the conditions. My question is: How fast should a normal HP71B be and what influences its speed for good or bad? Thanks for any hints, Thomas PS: I don't have a manual (yet), please be patient with me.

Re: HP71B - how slow can it be? Message #2 Posted by Raymond Hellstern (Germany) on 9 Nov 2002, 11:50 a.m., in response to message #1 by Thomas Falk Hi, pull out any modules, including the IL, put the machine on mains (Netzstecker rein;-), run the program again. Maybe you have installed some software which reacts on interrupts, like a running clock, or some other background task. Remove them, and you'll see;-) Raymond

Re: HP71B - how slow can it be? Message #3 Posted by J-F Garnier (France) on 9 Nov 2002, 11:51 a.m., in response to message #1 by Thomas Falk Use DISP instead of PRINT. PRINT is used for external hpil printer, although it can also be redirected to display by typing: PRINTER IS * J-F

Re: HP71B - how slow can it be - Thanks! Message #4 Posted by Thomas Falk on 11 Nov 2002, 3:20 a.m., in response to message #3 by J-F Garnier (France) Thanks to everybody who helped, especially to the one responding by email. I didn't expect such things like 'delay' for the display in Basic. Probably I should really get a manual. Thanks again.

[ Return to Index | Top of Index ]

Go back to the main exhibit hall