I am using debian etch l installed sdcc by apt-get install sdcc then
the installed version of sdcc is SDCC :
mcs51/gbz80/z80/avr/ds390/pic16/pic14/TININative/xa51/ds400/hc08 2.6.0
#4309 (Oct 15 2006) (UNIX)
the stable one .when i compile a program for A/D converion and to
display it on an lcd.It will generate a hex code of 361 lines.This hex
code when i burned it will not work.
Then i download a snapshot(DirectoryLinux on i386 (i386-unknown-linux2.3)
whoes version is SDCC :
mcs51/gbz80/z80/avr/ds390/pic16/pic14/TININative/xa51/ds400/hc08 2.6.3
#4533 (Dec 29 2006) (UNIX)
and compile the same program it will generate a hex code of 631 line
and it works well .
I have also another problem
DirectoryLinux on i386 (i386-unknown-linux2.5) when i download
snapshot from here and i give the command ./sdcc-v from the bin
directory i get an error message "Floating point exception"
My c code in the attachment
Plz Help me to solve this problem
#define __16f877A
#include"pic/pic16f877a.h"
#include<string.h>
#include<stdio.h>
//-----------------------Varables----------------------------//
int value1=0;
char str[14],str1[10];
//-----------------------Functions---------------------------//
void commandLCD(char comm);
void busy();
void lcdinit();
void writeLCD(char c);
void adcinit();
void adc();
void convert_float(float number);
void getadc();
void chselect();
void delay1(char time1);
void delay2(char time2);
//---------------------main function-------------------------//
void main(void)
{
TRISD=0x00;
TRISC=0x00;
PORTD=0x00;
PORTC=0x00;
delay1(0x00);
lcdinit();
adcinit();
while(1)
{
chselect();
delay2(0x09);
}
}
//---------------------lcd init function-----------------------//
void lcdinit()
{
commandLCD(0x2C); // Function to set 8 bit
commandLCD(0x2C); // Function to set 8 bit
commandLCD(0x2C); // Function to set 8 bit
commandLCD(0x01); // Function to clear
commandLCD(0x0C); //Display ON, Cursor OFF, Blinking OFF
commandLCD(0x06); //cursor Home
}
//---------- Function to send command to lcd ----------------------//
void commandLCD(char comm)
{
TRISD=0x00;
PORTD=(PORTD&15)|(comm&0xF0);
PORTD=PORTD^0x04; // for command rs=0 rw=0 and en=1(00000100)
PORTD=0x00;
PORTD=(PORTD&15)|(comm<<4);
PORTD=PORTD^0x04;
PORTD=0x00; //(00000000)
busy();
return;
}
//--------- Function To Check Whether The Lcd Is Busy -------------//
void busy()
{
TRISD=0x80;
PORTD=0x06; //00000110 for busy rs=0 rw=1 en=1
_asm
back2:
BTFSC PORTD,7;
goto back2;
_endasm;
PORTD = 0x00;
return;
}
//-------------------------- Send data --------------------------//
void writeLCD(char c)
{
TRISD=0x00;
PORTD=(PORTD&15)|(c & 0xF0); //for data rs=1 rw=0 en=1 (00000101)
PORTD=PORTD^0x05;
PORTD=0x00;
PORTD=(PORTD&15)|(c << 4);
PORTD=PORTD^0x05; //for data rs=1 rw=0 en=1 (00000101)
PORTD=0x00;
busy();
return;
}
//--------------------------Delay1----------------------------------//
void delay1(char time1)
{
TMR0=time1;//0xF0;
RP0=1;
PSA=0;
PS1=0;
T0CS=0;
RP0=0;
_asm
back3:
BTFSS INTCON,2;
goto back3;
_endasm;
T0IF=0;
RP0=1;
T0CS=1;
RP0=0;
return;
}
//------------------------------Delay2---------------------//
void delay2(char time2)
{
TMR1ON=1;
TMR1H=time2;
TMR1L=0x00;
T1CKPS0=1;
T1CKPS1=1;
TMR1CS=0;
_asm
back4:
BTFSS PIR1,0;
goto back4;
_endasm;
TMR1IF=0;
TMR1ON=0;
return;
}
//-------------------------Init A/D convertion-------------------//
void adcinit()
{
ADCON1=0x84;
ADON=1;
ADCS1=1;
ADCS0=0;
return;
}
//------------------------Channel select------------------------//
void chselect()
{
commandLCD(0x80);
writeLCD(0x43);
writeLCD(0x48);
writeLCD(0x30);
writeLCD(0x3A);
CHS2=0;
CHS1=0;
CHS0=0;
adc();
delay1(0xF0);
commandLCD(0xC0);
writeLCD(0x43);
writeLCD(0x48);
writeLCD(0x31);
writeLCD(0x3A);
CHS2=0;
CHS1=0;
CHS0=1;
adc();
delay1(0xF0);
}
//-------------------------Reading Data----------------------------//
void adc()
{
delay1(0xF0);
GO=1;
_asm
BACK1:
BTFSC ADCON0,2;
goto BACK1;
_endasm;
ADIF=0;
getadc();
return;
}
//----------------------Convertion Of the Data---------------------//
void getadc()
{
value1=ADRESH&0x03;//Get the first digit
value1=value1*0x100+ADRESL; //Getting the second digit
convert_float(value1*0.004887856);
return;
}
void convert_float(float number)
{
int i=0;
char k=0;
char u=3;
if(number==0)
{
str[i]='0';
i++;
u=0;
k=4;
}
while(number<1&&number!=0)
{
number=number*10;
k++;
}
number=number*1000;
while(number>=1)
{
str[i]=48+(int)number%10;
number=(int)number/10;
i++;
}
while(k>0)
{
str[i]='0';
i++;
k--;
u++;
}
while(i>0)
{
if(i==u)
writeLCD('.');
i--;
writeLCD(str[i]);
}
}
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