Search found 11 matches

#include "kbd.c"
void main()
{
char k,s;
int i=0; //counter

kbd_init();

while (TRUE)
{
k = kbd_getc();
if(k != 0) ...

Thanks again mate...
works fine now changed completely according to your code..

just some glitches....
working with them now..

#byte kbd_rows = 0x189 // Port g
#byte kbd_cols = 0x188 ...

how do i upload an image in here..?
i have the design but not able to upload the photo..

i want to use 4x7 keypad
so i have to use two ports.. one for rows and other for coulum..

the example you gave is for 4x3 keypad..(12 switches)

i tried the modification but its not working..
...

hello can any one help me with the below code..
its not working..
as pic16f877a was not sufficient with IO.
i am using pic16f946.

kbd.c
#byte kbd_rows = 0x189 // Port g
#byte kbd_cols = ...

but i want 7x4 matrix.
i.e 4 Rows and 7 columns.
which will require 2 Ports. (consider Port A and B)

Here is a modified version of kbd.c, where I put the rows and columns
on separate ports. I ...

Hello,

I am using generic code KBD.c

the above code uses single Port with 3 column and 4 rows

#byte kbd = getenv("SFR:PORTD")
#define set_tris_kbd(x) set_tr ...

Thanks for the reply..I will go though it..

Thanks Ttelmah

I am using nec protocol only (i.e 38khz)
and sorry for "sine wave" my mistake, pic pwm produces square wave which i am getting proper 38khz.

Start pulse - 4* interval ...

thanks a lot mike for the reply.

i did not get it..
timer 2 i have already used to produce 38khz wave.

can u please write in syntax format, i am a bit confused for

Set up timer2 to initiate ...

Hello,
i am new to this forum.
i wanted help regarding timer interrupts on PIC16F877A

i have a logic where i use

input:: as any binary string (1010110..)

output:: i want 38khz sine wave wi ...