ADC please

[ryanese]

Hey, can anyone help me in in Using ADC for PIC16f877. please

can u give me a sample program where two input analog signals are converted to digital and is assigned to 2 different long int values.

in C language please.

thanks so much.

P.S. if ever any of u need help in using a single 16f877 microcontroller for controlling up to 33 servos in C language. ill be glad to help

 

[Oznog]

Which C? HiTech and CCS handle the registers quite differently.

 

[pop]

Here is a short CCS implementation. This program outputs 8 MSB

#include <16f877.h>

#fuses HS,NOWDT,NOPROTECT
#device PIC 16F877 ADC=8
#use delay(clock=20000000)
#use rs232(BAUD=9600,XMIT=PIN_C6,RCV=PIN_C7)
#opt 9

// Reserve top 255 bytes of memory for the bootloader
#ORG 0x1F00,0x1FFFF{}


void reset()
{
setup_port_a(ALL_ANALOG);
setup_adc(ADC_CLOCK_INTERNAL);
set_adc_channel(1); //Read Pin A1 analog only
delay_us(10);
}

main()
{
int valueADC; //the '#device' directive sets adc to 8 bits

reset();
//printf("Ready");
while(true)
{
valueADC=read_adc();
}
}

 

[pop]

Oops, I just noticed that you said 2 analog signals....
That's no problem, cause all you have to do is create a function that will change set_adc_channel(1); to set_adc_channel(0); and then read adc value into a second variable.