Hang detection when printing to HP 82240B
Posted: Sat Mar 03, 2018 10:46 am
When I print from a program to the HP 82240B, the calculator hangs. After a reset (using the hole in the back) it shows me a "Hang detection. RESET in protected area." I have attached a screen shot. The error message is:
Reg Id d3770103, fw 3.3
After the first couple of resets, I have started from a "clean state" (memory lost), immediately entered the program, executed PRON, normal printing mode, executed the program a few times with different inputs. The program hangs while printing, normally not the first time I run it, but often the third or fourth time. When it hangs, the "printing" indictor and the "busy" indicator (black dot) in the display are on. It does not react to R/S nor any other key presses.
The printer has fresh batteries (Bat: 5), the self test executes okay.
The program:
00 { 81-Byte Prgm }
01▸LBL "VARISTO"
02 INPUT "I"
03 VIEW "I"
04 62.5
05 0.25
06 Y↑X
07 20
08 X<>Y
09 ÷
10 RCL "I"
11 0.25
12 Y↑X
13 ×
14 STO "U"
15 VIEW "U"
16 RCL÷ "I"
17 STO "R"
18 VIEW "R"
19 4
20 ÷
21 STO "DR"
22 VIEW "DR"
23 RCL "U"
24 RCL× "I"
25 STO "P"
26 VIEW "P"
27 END
Thank you for your support! - Chris
Reg Id d3770103, fw 3.3
After the first couple of resets, I have started from a "clean state" (memory lost), immediately entered the program, executed PRON, normal printing mode, executed the program a few times with different inputs. The program hangs while printing, normally not the first time I run it, but often the third or fourth time. When it hangs, the "printing" indictor and the "busy" indicator (black dot) in the display are on. It does not react to R/S nor any other key presses.
The printer has fresh batteries (Bat: 5), the self test executes okay.
The program:
00 { 81-Byte Prgm }
01▸LBL "VARISTO"
02 INPUT "I"
03 VIEW "I"
04 62.5
05 0.25
06 Y↑X
07 20
08 X<>Y
09 ÷
10 RCL "I"
11 0.25
12 Y↑X
13 ×
14 STO "U"
15 VIEW "U"
16 RCL÷ "I"
17 STO "R"
18 VIEW "R"
19 4
20 ÷
21 STO "DR"
22 VIEW "DR"
23 RCL "U"
24 RCL× "I"
25 STO "P"
26 VIEW "P"
27 END
Thank you for your support! - Chris