Programming in MikroC

PhilipWarence · Jul 14, 2014

Off Topic Bros. Sorry but I had been frustrating since last night that i cant figure this simple goal out...

void main()
{

PORTB = 0;
TRISB = 0;
{
for( PORTB=0; PORTB<=7; PORTB++)
Delay_ms(50) ;
}
}

Hello guys, Sorry to disturb yah'll. Im a beginner in MikroC. I had just started using this last night. Can i ask what's wrong with my code? My goal is to HIGH all the pins in portb 1 by 1 in PIC16F877A using a loop. But the only thing that happened is only pin RB0 turns high. Help guys. Thank you a lot..

DerStrom8 · Jul 14, 2014

Hi PhilipWarence , I have moved your post to its own thread. Next time please start your own instead of hijacking someone else's

Welcome to ETO, and good luck!
Regards,
Matt

NorthGuy · Jul 14, 2014

When PORTB is configured as analog, it always read as 0, so PORTB++ always sets it to 1. It's a good idea to use LATB instead.

If you want to do what you descrbed, do:

C:

TRISB=0; LATB = 1;
while(1) {
  LATB = (LATB<<1)+1;
  // appropriate delay here
}

Pommie · Jul 14, 2014

There is no LATB on a 16 series chip. Try adding ADCON1=0x06; at the beginning of your code.

Mike.

Ian Rogers · Jul 15, 2014

You need to shift PORTB to light each in turn.

Try this

C:

void main()
   {
   char x;
   PORTB =1;
   TRISB = 0;
   for( x=0; x <8; x++)
      {
      Delay_ms(250) ;
      PORTB<<=1;
      }
   }

Or this to light each one after each other..

C:

void main()
   {
   char x;
   PORTB =1;
   TRISB = 0;
   for( x=0; x <8; x++)
      {
      Delay_ms(250) ;
      PORTB<<=1;
      PORTB+=1;
      }
   }

Or in binary

C:

void main()
   {
   char x;
   PORTB =1;
   TRISB = 0;
   for( x=0; x <256; x++)
      {
      Delay_ms(50) ;
      PORTB = x;
      }
   }

Either case its better to use a buffer!!

Pommie · Jul 15, 2014

Ian's code should work well (didn't realize you were trying to light each in turn). However, the ADC still needs turning off.

Mike.

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