|KEYTIME (49 series)|
Message #4 Posted by James M. Prange (Michigan) on 4 Jan 2007, 7:18 p.m.,
in response to message #3 by hugh steers
Yes, a setting of 512 gives you 512/8192, or .0625, second "debounce" time, that is, the amount of time that another press of the same key will be ignored for. The default of 1135, or about .1385 second debounce time, seems too high for many users. On the other hand, the KEYTIME value was ignored in some 49g+ ROM revisions, and there were lots of reports of doubled keystrokes, so they brought it back in later revisions, and I think that it helped. Of course the "best" value depends on how fast a particular user can do an intentional repeat press of a key, and on whether he's having trouble with doubled keystrokes on a particular calculator.
Edited: 4 Jan 2007, 7:22 p.m.