how to increment an output pins!!!!

[snoopcat]

please i'm beginner,i wanna generate deferent analog signal by using the dac08 and a PIC,how can i increment the output (PORTF for exemple)from 0x00 to 0xff using a loop of course
i wanna get something like that

f0 f1 f2 f3 f4 f5 f6 f7
0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 1
0 0 0 0 0 0 1 1
0 0 0 0 0 1 0 1

 

[are]

look at
**broken link removed**

or google "pic course"

 

[waseem]

Hi!
it should be something like this

unsigned char data=0;

TRISF = 0XFF; //ALL PINS OUTPUTS

while(1)
{
PORTF=data++;
if(data==0xff)
data=0;
delay();
}

void delay(void)
{
unsigned int i;
while(++i!=1000);
}


I have assumed that u are programming in C.
It can also be done in assembly quite easily.

I have used the delay function to generate some delay after sending a particular value to the port. You can increase or decrease this delay depending upon the type of signal that u want to generate.

Regards.

Added after 4 minutes:

I made one mistake (a terrible one)

in the above code make this change

TRISF = 0X00;

Thanks.

 

[nikhil_damle]

i think as our buddy has demonstrated is the right way to do

 

[snoopcat]

thnaks a lot guys ans sorry for the desargement