Hello Everyone,
How do I convert an Analog pin to digital? I'm using PIC18f4550.
I'm using ADCON1 register like ADCON1=0b00000111, which converts all PORTB's analog pins into digital.
but I have to convert only RB0 pin as digital pin.

Thanks in Advance

 

RB0 is AN12. To connect AN12 to the ADC set ADCON0 to 0b00110011.

 

thanks AlbertHall
its not working here is my code.

ADCON0 = 0b00110011;
TRISB0_bit=1;
TRISD0_bit=0;

while(1) {

if(RB0_bit==0)
LATD0_bit = 1;
else
LATD0_bit = 0;


}

 

Your code reads RB0 as a digital input. If you want to read it as an analogue voltage then you need to wait until the ADC conversion is complete (GO/DONE = 0) and then ADRESH/ADRESL holds the digital version of the analogue input.
Study this: https://openlabpro.com/guide/analog-to-digital-converter-using-pic18f4550/

 

I need a function that makes an analog pin to digital. whereas ADCON1=0b00000111 converts all pins to digital. I did not want to convert all pins as digital except the one that I want.
like:
short pin3=3;
func(&PORTB,pin3);

 

ADCON1 = 0x03;

will make RB0/AN12 as digital pin and all other ANx pins as analog pins.