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yes that solved the problem
i shorted the pin to pin 12 instead of 11
no bug fixing was done
thanks

hi
thanks for your solution
but unfortunately it does not work
kbhit(GPS) never returns true and its sampling rate is higher than rs232 baud rate

a work around used is
if(!input(PIN_B ...

Please compile the program that I posted.

CCS PCM C Compiler, Version 4.013, 28193 25-May-07 11:47

Filename: kbit.lst

ROM used: 81 word ...

sry i am not good in assembly
hope you can find something from here

void main()
.................... {
*
0017: CLRF 04
0018: BCF 03.7
0019: MOVLW 1F
001A& ...

Post your compiler version. You can find it at the top of the .LST file.
Look for that file in your project directory. It's a 4-digit number like
3.249, 4.013, 4.038, etc.

4.013

problem with kbhit and getc

hi,i got a problem with kbhit and getc, here is my code

#use rs232(baud=9600,parity=N,xmit=PIN_B7,rcv=PIN_B5,stream=GPS)
....

in main....
while( ...

thank u all for your suggestions! i managed to solve the problem with an alternate averaging method without any hardware alterations

What if you calculate a new boundary circle based on the latest reading? If the old true point is within the new boundary circle you keep the cursor at the old point. If not then abandon the old poi ...

The link you provided in the first post uses a TI chip to interface to the system, I assumed you were using it as well.

What is your algorithm like? I assume something like this:
- set outputs to ...

The TI chip that you're using....do you have power supply decoupling capacitors to ground very near each Vdd pin? Is there supposed to be capacitors to ground on the touch screen sense lines? Is thi ...

What (if any) hardware filtering/conditioning is in place? If there is a hardware lowpass filter in place, what is the cutoff frequency? My gut instinct would be that lowering the cutoff frequency o ...

Noise handling algorithm in 8 wire touch screen
here's how a touch screen work http://img263.imageshack.us/img263/8210/circlejy5.jpg

http://img266.imageshack.us/img266/5989/circlehf0.jpg
but the ...

finally got it to work using the surface mount sipex chip
pretty bad noise on the negative voltage but still readable
http://img262.imageshack.us/img262/9804/probeoftransceivermu0.jpg
but now it se ...

Baud rate programmed at 9600, but must be read at 38400
PIC16f687

look at this, i programmed my micro controller's baud rate at 9600, but i must read it at 38400. else it gives garbage

http://i ...