Search found 50 matches

by Dave Britten
Wed Feb 13, 2019 4:01 pm
Forum: DM1x/DM41
Topic: DM15L programming
Replies: 16
Views: 596

Re: DM15L programming

It doesn't strike me as a feature that would be super difficult to add. Simply modify the simulator's display routine to snoop on whatever flag/register/memory address is used internally by the calculator to indicate that it's in program mode (or that SST is being held), and use an alternative displ...
by Dave Britten
Wed Feb 13, 2019 3:06 pm
Forum: DM42
Topic: Looking forward to the DM42 update utilizing the Free42 2.023 update...
Replies: 16
Views: 488

Re: Looking forward to the DM42 update utilizing the Free42 2.023 update...

When's the new Palm OS build coming so I can update my Tungsten C? ;D

(Mostly joking. But obviously I would install it if it came out.)
by Dave Britten
Wed Jan 30, 2019 7:41 pm
Forum: Hardware
Topic: DM15L keyboard response?
Replies: 4
Views: 263

Re: DM15L keyboard response?

I don't have a 15L, but I have a 16L and 41L, and the only way I can get them to miss keystrokes when typing fast is by slowing the CPU down to 12 MHz. It runs at 48 MHz by default, and I don't have any problems with responsiveness.
by Dave Britten
Wed Jan 23, 2019 2:35 pm
Forum: Discuss!
Topic: How did you discover SwissMicros?
Replies: 33
Views: 4926

Re: How did you discover SwissMicros?

I think I heard about them on hpmuseum.org back when the original "credit card" models were being released. I didn't have any practical need for those ones, but thought they were cool. The eventual "L" models made a more compelling argument, and I bought a 41L and 16L a few years ago. Then I got the...
by Dave Britten
Thu Nov 08, 2018 1:33 pm
Forum: Hardware issues
Topic: Keyboard debouncing
Replies: 63
Views: 6593

Re: Keyboard debouncing

I bought one that is on the way and now I'm really worried about this "bug" :shock: Waiting for news... :| I wouldn't lose too much sleep over it. It's a very minor thing, and I think it was more common with some of the early production models like mine. I've cleaned the keys out, and it's pretty r...
by Dave Britten
Mon Nov 05, 2018 4:39 pm
Forum: Hardware issues
Topic: Keyboard debouncing
Replies: 63
Views: 6593

Re: Keyboard debouncing

My big fear is that I'm going to hit Shift-Clear, CLP or CLV, and get a bounce on that function key, nuking something I didn't want to delete. Hasn't happened so far... Golden rule of layouting: avoid such possibilities! Agreed, but the multi-purpose soft menu keys limit that somewhat. The 17BII, 1...
by Dave Britten
Mon Nov 05, 2018 2:23 pm
Forum: Hardware issues
Topic: Keyboard debouncing
Replies: 63
Views: 6593

Re: Keyboard debouncing

My big fear is that I'm going to hit Shift-Clear, CLP or CLV, and get a bounce on that function key, nuking something I didn't want to delete. Hasn't happened so far...
by Dave Britten
Mon Oct 22, 2018 5:24 pm
Forum: Usage tips, tricks and problem reports
Topic: Machine reset after drop
Replies: 7
Views: 577

Re: Machine reset after drop

Which makes me wonder if I could solder a small 3V cap across the two battery lines to smooth out such brief losses of power. You could do that Dave. Or you could just, you know, not drop your calculator :D That would be my Plan A. But I find it never hurts to have a good Plan B. ;) Could also be u...
by Dave Britten
Mon Oct 22, 2018 3:12 pm
Forum: Usage tips, tricks and problem reports
Topic: Machine reset after drop
Replies: 7
Views: 577

Re: Machine reset after drop

However the sudden G-forces caused the device to reset... I can only imagine "the sudden G-forces" causing an interrupt in voltage supply due to a short loss of contact - which in turn caused a reset. Beyond this, the effect of gravity on electrons should be negligible. Edited to correct an error i...
by Dave Britten
Mon Oct 22, 2018 12:07 pm
Forum: Usage tips, tricks and problem reports
Topic: 8 Level Stack?
Replies: 12
Views: 1403

Re: 8 Level Stack?

Hmmh, let's see: This would be an excellent feature for a potential Free42+ fork. Expand the flags to 3-digits for toggling advanced features, ... What for do you need more than 100 flags? Please specify. In the context of Free42, they would just be used for adding additional toggles for for enabli...