problem with keypad and LCD (PIC16F877A)

[toto_na16]

hi ,

I wrote this code to display a pressed key (1-16) on LCD

but when i press a key it make all the screen full of this character ?

char t[6];
unsigned i;
void main(){
     TRISD=0x00;
     Lcd_Config(&PORTD,2,3,0,7,6,5,4);
     Keypad_Init(&PORTB);
     while(1){
              while(Keypad_Read()==0){
                                     }
              i = Keypad_Read();
              WordToStr(i,t);
              LCD_Out_Cp(t);

              }


}

can anyone tell me why ?

 

[bobcat1]

Hi

Check your Keypad_Read() function it looks like you need to debounce the switches


All the best

Bobi

The microcontroller specialist

 

[Tahmid]

Hi,
Take a look at this:

This is a similar topic over LCD and keypad.

Hope this helps.
Tahmid.

 

[toto_na16]

Hi,
Take a look at this:

This is a similar topic over LCD and keypad.

Hope this helps.
Tahmid.

this topic the code is written in microbasic , i am using mikroc

i will try to understand the difference , anyway thanks

Added after 40 minutes:

Hi,
Take a look at this:

This is a similar topic over LCD and keypad.

Hope this helps.
Tahmid.

ok i realized what is the difference Thanks a lot :|