Question

How Can I change objects name by a loop?

I want create a light effect like knight-rider’s one. With a PIC

I thought instead of turning on and off manually to use a loop for change RB line number.

I want to change the last number of this Port line name: like RB01 RB02 like this

my code is like this

for(int i = 0; i>6 ; i++ ){

PORTB = 0X00;
RB+i = 1;

}

Are there any kind of method do something like this? thanks

Answer 1

Assuming RB01, RB02, etc are just convenient #defines for accessing the bits in PORTB, you can write the loop with bitwise arithmetic and not use RB0* at all.

for ( int i = 0; i != 6; ++ i ) {
    PORTB = 1 << i; /* one light at a time */
    /* or */
    PORTB = ( 1 << i + 1 ) - 1; /* light all in sequence */
}