Re: Using Keytime to Force Keyboard Not to bounce

On Oct 30, 8:33 am, barro <bara...@xxxxxxxxxxx> wrote:
I have found a way to reduce key DUPS on the HP 49g+ using KEYTIME.

Run this test for 60 seconds. Press 1. Press 2. Press ENTER. Repeat
until clock runs out. I can do about 73 reps during the 60 second
interval at a comfortable pace.

With KEYTIME set to 1024, I get 2 to three DUPS on average out of 73
reps for 2.7 percent failure rate.

By setting KEYTIME to 2048, and running this test, I did not get any
DUPS. You may have to change the KEYTIME value to suit your typing
style and speed. The results may vary depending on whether you have a
"good" keyboard, or the crap from the early model runs such as mine.

I used ROM 2.09 on s/n CN33403674 (case); s/n CN33719378 (internal)
for the experiment.

I hold the calculator in one hand and use one finger of the other hand
to press.

Everyone is welcome to participate in the beta tests so that we
can help these Chinese manufacturers further develop this experimental
product.

John B


.

Relevant Pages

  • Using Keytime to Force Keyboard Not to bounce
    ... I have found a way to reduce key DUPS on the HP 49g+ using KEYTIME. ... I can do about 73 reps during the 60 second ...
    (comp.sys.hp48)
  • Re: Using Keytime to Force Keyboard not to Bounce
    ... I'd also like to point out that KEYTIME isn't new with the 49G family, ... Also, just for clarity, they aren't 'DUPS', x-register pushes, they are ... an inexpensive late model plastic slide rule and found that when you had ...
    (comp.sys.hp48)
  • Re: Using Keytime to Force Keyboard not to Bounce
    ... I'd also like to point out that KEYTIME isn't new with the 49G family, ... Also, just for clarity, they aren't 'DUPS', x-register pushes, they are ... an inexpensive late model plastic slide rule and found that when you had ...
    (comp.sys.hp48)
  • Re: Does HP Monitor this group?
    ... key strokes as much as not being able to avoid DUPS even with Keytime ... I run KEYTIME in the startup. ... that early ROM was really bad and did not even support KEYTIME ... I have CN33403674 and ROM 2.09 combo and no broken keys. ...
    (comp.sys.hp48)
  • Using Keytime to Force Keyboard not to Bounce
    ... I can do about 73 reps during the 60 second ... interval at a comfortable pace. ... reps for 2.7 percent failure rate. ... DUPS. ...
    (comp.sys.hp48)