AVR-Chat

Hi what a failure the project is.

I was planning to put a 4*4 keyboard on portA of a ATmega32, sending F0 to the data direction register &
the data port.

this is the "test" plan, to put 1's on all the rows, the loop will look for a 1 on the columns,  when it
finds a 1 the beeper will beep, then I will continue to write the code so to put information on the LCD
from the keyboard after strobbing the rows one by one.


I got it to work alright on the studio program, it loops round looking for a 1 on the columns,  but it
fails when I download it to the micro,
I have got the port lines going direct to the keyboard,  should I put say 10K resistors on the input
ports? or use some other hardware ideas?



From Eric