How to activate several digital outputs

Projects Programming
1

Hi,

I need to activate several digital outputs at the same time, for example output 2.3 and 4, I did it this way but it does not work for me:

digitalWrite(pindos, HIGH);
        digitalWrite(pintres, HIGH);
        digitalWrite(pincuatro, HIGH);

How could I do it?

Regards.

3

Sabths:
I need to activate several digital outputs at the same time, for example output 2.3 and 4,
[snip]
How could I do it?

Use PORTD. For D2-4, you write bits 2-4 of PORTD. Just take care to not affect other bits.

This is what I did to use D6-13 as an 8 bit address to a DRAM (I wanted to use D0-1 for serial output):

// PORTB: set last 6 bits to 0; OR in top 6 address bits
// PORTD: set high 2 bits to 0; OR in low 2 address bits
#define SETADR(x)   \
  PORTB &= ~077;    \
  PORTB |= (x)>>2;  \
  PORTD &= 077;     \
  PORTD |= (x)<<6;