PIC16F877A – MIKRO C – DIGITAL OUT

1)To turn on single led on port b (2^nd led in port b is on)

void main()
{
    while(1)
    {
        trisb=0;    //to set port b as output
        portb=0x2;  //write  the value to port b ie, 10 (binary)
    }
}

2)To turn on all led on port b

void main()
{
    while(1)
    {
        trisb=0;    //to set port b as output
        portb=0xff; //write  the value to port b ie, 11111111 (binary)
    }
}

3)To turn on the 8^th and 6^th led on port b

void main()
{
    while(1)
    {
        trisb=0;    //to set port b as output
        portb=0xa0; //write  the value to port b ie, 10100000 (binary)
    }
}

4)To blink the 8^th led on port b

void main()
{
    trisb=0;
    while(1)
    {
        portb=0xa0;
        delay_ms(100); // delay of 100ms,us for micro seconds
        portb=0x0; //sets output as low
        delay_ms(100);
    }
}

5)To blink led using “ not”

void main()
{
    trisb=0;
    portb=0xff;
    while(1)
    {
        portb=~portb; //simply not the input
        delay_ms(100);
    }
}

6) single pin configuration (7^th led is on)

void main()
{
    while(1)
    {
        trisb.f7=0;          //sets 8th pin on the port b as output
        portb.f7=1;          //sets 8th pin on the port b as high
    }
}

7) Runninng led on port b (Shift operator)

void main()
{
    int a=2,i;
    trisb=0x0;
    portb=0x80;
    delay_ms(100);
    while(1)
    {
        for(i=0;i<8;i++)
        {
            portb= portb>>1;
            delay_ms(100);
        }
        portb=0x80;
        delay_ms(100);
    }
}