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a/d problem

 
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Bilal



Joined: 24 Apr 2010
Posts: 75
Location: Islamabad

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a/d problem
PostPosted: Sun Oct 31, 2010 8:19 am     Reply with quote
hi.. i am using PIC16F877A.. i read its datasheet.. it says A/D gives 10 bit of data that is 0 t 1023 but when i use this code..

Code:

#include <16F877A.h>

#use delay(clock=4000000)
#fuses HS,NOWDT,NOPROTECT,NOLVP
#include <lcd.c>


void main() {
int16 read;
lcd_init();
setup_port_A( ALL_ANALOG );
setup_adc( ADC_CLOCK_INTERNAL );
set_adc_channel(0);
do{
read = Read_ADC();


lcd_gotoxy(1,1);
printf(lcd_putc,"        %Lu  ",read);


   } while (TRUE);

}

LCD gives 0 to 255

please help
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Ttelmah



Joined: 11 Mar 2010
Posts: 19513

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PostPosted: Sun Oct 31, 2010 9:28 am     Reply with quote
#device ADC=10

Best Wishes
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