ADC.zip_adc pic_interface_pic18f4550_pic18f4550 ADC

#include<p18f4550.h> #include<delays.h> //#include<math.h> #define rs PORTCbits.RC0 #define en PORTCbits.RC1 void lcdcmd(unsigned char data) { rs=0; PORTD=data; en=1; Delay10TCYx(5); en=0; } void lcddata(unsigned char data) { rs=1; PORTD=data; en=1; Delay10TCYx(5); en=0; } void lcd_ini(void) { Delay10KTCYx(2); lcdcmd(0x01); Delay10KTCYx(2); lcdcmd(0x02); Delay10KTCYx(2); lcdcmd(0x06); Delay10KTCYx(2); lcdcmd(0x0C); Delay10KTCYx(2); lcdcmd(0x38); Delay10KTCYx(2); } void adc_ini(void) { ADCON1=0x0E; ADCON0=0x00; ADCON2=0xA2; ADCON0bits.ADON=1; } void main(void) { unsigned int result, temp, Temp_int1, Temp_int2, Temp_int3, Temp_deci1; unsigned short long Temp, VOLT; unsigned char range=5, Vref_n=0, mydata; TRISAbits.TRISA0=1; TRISD=0x00; TRISC=0x00; PORTD=0x00; en=0; rs=0; lcd_ini(); adc_ini(); while(1) { ADCON0bits.GO=1; while(ADCON0bits.DONE==1); result=ADRESH; result=(result<<8)|ADRESL; temp=range*result; VOLT= (1000*Vref_n)+(temp*0.9775); Temp=VOLT*100; Temp_int1=Temp/100000; mydata=Temp_int1|0x30; lcddata(mydata); Delay10KTCYx(2); Temp_int2=(Temp/10000)%10; mydata=Temp_int2|0x30; lcddata(mydata); Delay10KTCYx(2); Temp_int3=(Temp/1000)%10; mydata=Temp_int3|0x30; lcddata(mydata); Delay10KTCYx(2); mydata=0x2E; lcddata(mydata); Delay10KTCYx(2); Temp_deci1=(Temp/100)%10; mydata=Temp_deci1|0x30;; lcddata(mydata); Delay10KTCYx(2); lcdcmd(0x02); Delay10KTCYx(2); lcdcmd(0x06); Delay10KTCYx(2); } }