[SOLVED] PIC problem with GO done bit in ADC

HI

The PIC16F877A Projects are excellent study material. I reached up to the ADC project. Here I am facing some problems with GO_nDONE the compiler is throwing some error. Request your help. I am sending the code to u. I am trying to read an analogue signal and trying to diplay in LCD 16x2. also I dont know How to convert Float into String type kindly help I am not much familiar with c for most of my works I use VB. I am attaching the code and o/p below

// PIC16F877A Configuration Bit Settings

// 'C' source line config statements

// CONFIG
#pragma config FOSC = HS        // Oscillator Selection bits (HS oscillator)
#pragma config WDTE = OFF       // Watchdog Timer Enable bit (WDT disabled)
#pragma config PWRTE = ON       // Power-up Timer Enable bit (PWRT enabled)
#pragma config BOREN = ON       // Brown-out Reset Enable bit (BOR enabled)
#pragma config LVP = OFF        // Low-Voltage (Single-Supply) In-Circuit Serial Programming Enable bit (RB3 is digital I/O, HV on MCLR must be used for programming)
#pragma config CPD = OFF        // Data EEPROM Memory Code Protection bit (Data EEPROM code protection off)
#pragma config WRT = OFF        // Flash Program Memory Write Enable bits (Write protection off; all program memory may be written to by EECON control)
#pragma config CP = OFF         // Flash Program Memory Code Protection bit (Code protection off)

// #pragma config statements should precede project file includes.
// Use project enums instead of #define for ON and OFF.

#define _XTAL_FREQ 20000000
#define RS RD2
#define EN RD3
#define D4 RD4
#define D5 RD5
#define D6 RD6
#define D7 RD7
#include <xc.h>
#include "MyLCD.h";

     void ADC_Initialize()
    {
        ADCON0 = 0b01000001;//ADC ON and Fosc/16 is selected
        ADCON1 = 0b11000000;//Internal reference voltage is selected
    } 
    
    unsigned int ADC_Read(unsigned char channel)
    {
        ADCON0 &= 0x11000101;//Clearing the channel selection bits
        ADCON0 |= channel<<3;// setting the required channel bits
        __delay_ms(2)//Acqusition time for charge Hold capicitor
        GO_nDONE = 1;//Initializes A/D conversion             LINE 40 ??????????????????
        //ADCON0<2> = 1;
        while(GO_nDONE);// Wait for A/D conversion to complete
        //while(ADCON0<2>);
        return((ADRESH<<8)+ADRESL);//Returns Result        
    }
    void main()
    {
    //*****I/O Configuration****//
    unsigned int a;
    int flag = 0;//For creating delay 
    float adc = 0.0;
    float i = 0.0;
    char St;
    TRISC = 0x00;//Instruct the MCU that all pins of port C are out put
    PORTC = 0x00;//Initialize all pins to zero
    TRISD = 0x00;//Instruct the MCU that all pins of port D are out put
    PORTD = 0x00;//Initialize all pins to zero
    //*****End of I/O Configuration****//
    Lcd_Start();
    ADC_Initialize();
    while(1)
    {
        if(flag>=50)//wait till flag reaches 50
        {
        adc = (ADC_Read(4));
        i = adc*0.488281;
        //St = i;
        //St = St & " " & "V";
        Lcd_Clear();
        Lcd_Set_Cursor(1,1);
        Lcd_Print_String(i);//HOW CAN I CONVERT i TO STRING HERE ???????????????????????? line 71
        flag = 0;//only if flag = 50 i will get the adc value        
        }        
        flag++;//Increment flag for each cycle
    }        
    }

THE COMPILER O/P

make -f nbproject/Makefile-default.mk SUBPROJECTS= .build-conf
make[1]: Entering directory 'C:/MPLABXProjects/ADconversion.X'
make  -f nbproject/Makefile-default.mk dist/default/production/ADconversion.X.production.hex
make[2]: Entering directory 'C:/MPLABXProjects/ADconversion.X'
"C:\Program Files (x86)\Microchip\xc8\v1.38\bin\xc8.exe" --pass1  --chip=16F877A -Q -G  --double=24 --float=24 --opt=default,+asm,+asmfile,-speed,+space,-debug --addrqual=ignore --mode=free -P -N255 --warn=-3 --asmlist -DXPRJ_default=default  --summary=default,-psect,-class,+mem,-hex,-file --output=default,-inhx032 --runtime=default,+clear,+init,-keep,-no_startup,-osccal,-resetbits,-download,-stackcall,+clib   --output=-mcof,+elf:multilocs --stack=compiled:auto:auto "--errformat=%f:%l: error: (%n) %s" "--warnformat=%f:%l: warning: (%n) %s" "--msgformat=%f:%l: advisory: (%n) %s"    -obuild/default/production/ADconversion.p1  ADconversion.c 
MyLCD.h:34: warning: (371) missing basic type; int assumed
ADconversion.c:40: error: (195) expression syntax
ADconversion.c:71: error: (182) illegal conversion between types
double -> pointer to unsigned char
(908) exit status = 1
nbproject/Makefile-default.mk:100: recipe for target 'build/default/production/ADconversion.p1' failed
make[2]: Leaving directory 'C:/MPLABXProjects/ADconversion.X'
nbproject/Makefile-default.mk:84: recipe for target '.build-conf' failed
make[1]: Leaving directory 'C:/MPLABXProjects/ADconversion.X'
nbproject/Makefile-impl.mk:39: recipe for target '.build-impl' failed
make[2]: *** [build/default/production/ADconversion.p1] Error 1
make[1]: *** [.build-conf] Error 2
make: *** [.build-impl] Error 2

BUILD FAILED (exit value 2, total time: 6s)

THANKS

BAIJU