Dear Colleages,
I would like to know who on earth has an example code of a 4x4 keypad
connected to an LPC922 using only P0, and wants to share it wiht me,
.
I wrote a piece of program and unfortunately it works very badly
although the uVision simulator/debugger shows no problem.
Regards
OmarE
Read-Only
Author erik malund
Posted 21-Mar-2007 21:04 GMT
Toolset C51
RE: Keypad connected to LPC922
erik malund
I wrote a piece of program and unfortunately it works very
badly
so basically it works, thus I guess it is either/both of
these:
a) missing debouncing
b) using the keypad interrupt for anything but wake up
If it is neither of those give a link to your code.
who on earth has an example code of a 4x4 keypad connected to
an LPC922 using only P0, and wants to share it wiht me
no professional in his right6 mind would give away full code and what
you get from amateurs will be "whatever", so you will be far better
off making your own code work.
Erik
Read-Only
Author Per Westermark
Posted 22-Mar-2007 14:23 GMT
Toolset C51
RE: Keypad connected to LPC922
Per Westermark
Quite a lot of professionals will give away free code - especially
trivial code.
However, most professionals will assume that a request for code to
handle a 4x4 keyboard is for a school assignment, for the simple
reason that about 97% of the requests for it really is for a school
assignment.
Hence, the people most likely to supply such code on request is
people who takes it as a challenge to write such code, and then wants
to propagate their master pieces.
Read-Only
Author erik malund
Posted 22-Mar-2007 15:58 GMT
Toolset C51
RE: Keypad connected to LPC922
erik malund
However, most professionals will assume that a request for code
to handle a 4x4 keyboard is for a school assignment, for the simple
reason that about 97% of the requests for it really is for a school
assignment.
and no professional want to end up working with someone that
graduated by copying instead of engineering. So any professional
worth his salt will WANT you to fail your graduation if YOU are not
able to do the project YOURSELF
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