please help me it is not working

[psaundary]

i just want a push button on port b0 and use port a0 as o/p
sbit b at RB0_bit; // b button

sbit led at RA0_bit; // led o/p

sbit button_direction at TRISB0_bit;

sbit led_direction at TRISA0_bit;

void main() {
if(b=0){
PORTA=!PORTA;
}

while(1);

}
there is no error in compile this code bt not working in proteus :'(

please help me :'(

[MaGiK]

Hello psaundary and welcome to the forum

I'm not sure, but I think you may have to change a part of your code into this:

Code: Select all

void main()
{
While (1)
   {
if(b==0)
      {
      PORTA=!PORTA;
      }
   }
}

The main difference is the double equal sign '=' in the condition statement.

I didn't focus on your post since I'm a little busy at the moment. So, it might not solve your issue.
Please let me know if it didn't solve your issue
Best Regards

[psaundary]

may you give me mikroc program to on/off led by using pushbutton ..

sbit b at RB0_bit;
sbit led at RC0_bit;
sbit button_direction at TRISB0_bit;
sbit led_direction at TRISC0_bit;
void main() {

button_direction = 1;
led_direction=0;
if(b==1){
led=!led;}
while(1);
}


i am new in this field , please help me my compiler successfully compile the code bt if i use hex code in proteus ,port c0 reamin same every time when i press button

[MaGiK]

Hello psaundary

Of course I'm going to try to help you out
But the thing is, it's a little hard to help you without knowing the schematic, so could you please attach a picture here of your schematic?
It will give us a better picture of what's going on

Best Regards

[p.erasmus]

As a beginner you should learn when you ask help in the Forum you need to give the inforamtion about your setup we can not see over your pc to your hardware
what you are doing
so what mcu are you using ??

[johnt]

You might also find this page helpful.

http://www.mikroe.com/chapters/view/17/ ... ples/#c4v8

[psaundary]

i am using pic 16f877a with 10 MHz crystal oscillator ..
i want use port b0 as input port and want to take response on port c0
in this fig i did not use led on c0 , i am using proteus professional 8 version there is no need to give vcc voltage source (i hope) for simulation ,actually i tested lcd program without using vcc for mcu.
please help

Untitled.png (16.21 KiB) Viewed 2854 times

i did not use led on c0 ,bcs Proteus can show port status if low blue if high it will be red

[p.erasmus]

You have to pull MCLR pin up to VDD as in the real circuit ,as you did not do it, your model will never Run as the PIC is in Reset state
Attached a Proteus 8.2 model and mikroC code project of your PIC with Button which switch states on RC0 as you press the button and a Led on RC4 which Toggles every 100mSec

[hasan hadi]

may you give me mikroc program to on/off led by using pushbutton ..

sbit b at RB0_bit;
sbit led at RC0_bit;
sbit button_direction at TRISB0_bit;
sbit led_direction at TRISC0_bit;
void main() {

button_direction = 1;
led_direction=0;
if(b==1){
led=!led;}
while(1);
}

i am new in this field , please help me my compiler successfully compile the code bt if i use hex code in proteus ,port c0 reamin same every time when i press button

Hi,
this correct code

Code: Select all

sbit b at RB0_bit;
sbit led at RC0_bit;
sbit b_direction at TRISB0_bit;
sbit led_direction at TRISC0_bit;
void main() 
{
 adcon1=6;
 b_direction = 1;
 led_direction=0;
 led=0;// off led
  while(1){
            if(b==1){
                     led=!led;
                     delay_ms(250);
                    }
          }
}

[psaundary]

thank you to all ,for help me .. it is now working good and also i found that what mistake i did .. thanks to all

[p.erasmus]

good luck