[PIC] [Help] PIC 16F886 with 9 button program with CCS

[didoe]

Hi all. I'm a newbie in PIC and i do this project

Input :

Port A0-A5
Port C0-C2

Output :

PortB

When i push a button form 1-9 Pic will output random on PortB. This is program i have written. I have simulation on Proteus, it working but sometime when i push button, output is blinking, not constant. Is there wrong in this program?

And when I download program to real chip PIC 16F886, it not working. Pls help me make good and clear program. Many thanks !

#include <16F886.h>

#use delay(crystal=20000000)

#define sw1 PIN_A0
#define sw2 PIN_A1
#define sw3 PIN_A2
#define sw4 PIN_A3
#define sw5 PIN_A4
#define sw6 PIN_A5

#define sw7 PIN_C0
#define sw8 PIN_C1
#define sw9 PIN_C2

#FUSES NOWDT //No Watch Dog Timer
#FUSES NOBROWNOUT //No brownout reset
#FUSES NOLVP //No low voltage prgming, B3(PIC16) or B5(PIC18) used for I/O

void main()
{

while(TRUE)
{
//sw1
if(!input(sw1))
OUTPUT_B(0x70);

///sw2
else if(!input(sw2))
OUTPUT_B(0x0C);

///sw3
else if(!input(sw3))
OUTPUT_B(0x04);

///sw4
else if (!input(sw4))
OUTPUT_B(0x07);

///sw5
else if (!input(sw5))
OUTPUT_B(0x02);

///sw6
else if (!input(sw6))
OUTPUT_B(0x05);


///sw7
else if (!input(sw7))
OUTPUT_B(0x0E);

///sw8
else if (!input(sw8))
OUTPUT_B(0x0B);

///sw9
else if (!input(sw9))
OUTPUT_B(0x0A);

else
OUTPUT_B(0x00);
}

}

USE FORUM ADD IMAGE FEATURE, NOT THIRD PARTY

 

[didoe]

Anyone can help. Output blinking when no input signal

 

[embpic]

use some kinda delay in your program (as debounce time) after you detect the key is pressed. it will solved problem.

 

[jayanth.devarayanadurga]

if((!input(sw1)) && (input(sw2)) && (input(sw3)) && (input(sw4)) && (input(sw5)) && (input(sw6)) && (input(sw7)) && (input(sw8)) && (input(sw9)))OUTPUT_B(0x70);

//and similar if() conditions...

PORTA and C might have ADC, Comparator, etc... So, Configure, ANSELx, ADCONx, VRCON, CVRCON, CMCON, CM1CON0, CM2CON0 resistors if they exist in your uC. Both SWx and LEDx pins should be digital I/O. SWx pins should be Input and LEDx pins should be output type.

 

[didoe]

Thanks all. I did it