Är det så för--anat svårt att posta en enkel länk till projektet?
Är det detta projekt:
http://www.hamradio.in/circuits/thermometer.php ?
EDIT:
Så svårt är det väl inte att se vilket språk som "TEMP.C" är skrivet i? Dessutom står det ju i klartext:
"The program is written in C and compiled using HI-TECH PICC-Lite, free software from HI-TECH Softwares.".
HI-TECH PICC-Lite är väl, om jag inte har helt fel, i princip föregångaren till Microchip XC8.
Koden är ju inte jättestor direkt:
Kod: Markera allt
/*----------------------------------------------------------------
* File: TEMP.C
*
* Purpose: To display Temperature between 2 to 100 Degree C
*
* Inputs: LM35
*
* Outputs: Three seven segment common Cathod LED Display
*
* LM35 gives 10mv for a 1 degree temperature change
*
* Author: C.V. Niras, vu3cns@yahoo.com
*-----------------------------------------------------------------*/
#include <pic.h>
__CONFIG(WDTDIS & XT & UNPROTECT &PWRTEN & LVPDIS);
#define CH0 0b00000000 // AN0
#define CH1 0b00001000 // AN1
#define CH2 0b00010000 // AN2
#define CH3 0b00011000 // AN3
#define CH4 0b00100000 // AN4
#define ADCON0_VALUE 0b11000001 // RC OSC, ADON
volatile static unsigned char digit[3];
//volatile static unsigned char a, b, c;
void adc_delay(void);
void set_adc_ch(unsigned char channel);
unsigned int adc_read(void);
union
{
unsigned int i;
unsigned char ch[2];
}adc;
void interrupt timer (void);
void DelayMs(unsigned char cnt);
//float floor (float f);
#define MHZ *1000L
#define KHZ *1
#define DelayUs(x) { unsigned char _dcnt; \
_dcnt = (x)/((12MHZ)/(4MHZ))|1; \
while(--_dcnt != 0) \
continue; }
void main()
{
unsigned int temp, temp_real, temp1, i;
volatile static char channel;
ADCON1 = 0x82; // RA's are input and RE's are digital output
TRISA = 0x1F; // all are input
TRISB = 0x00; // All portB are output
TRISC = 0x00; // All PortC are out put
PORTC = 0x00;
TRISE = 0x00;
OPTION = 0x04; /* Prescale of 32. */
/* which is really Fosc/4*32. */
INTCON = 0;
T0IE = 1;
GIE = 1;
for( ; ;)
{
if ( RA4 )
{
channel = CH0;
}
else
{
channel = CH1;
}
set_adc_ch(channel);
adc_delay();
temp = adc_read();
temp += adc_read();
temp += adc_read();
temp += adc_read();
temp_real = (int) (( temp * 1.2207 ) + 0.5);
temp1 = temp_real;
if(temp1 > 1000)
{
digit[0] = digit[1] = digit[2] = 10; // display error i.e."E"
}
else
{
for ( i = 0; i < 3; i++)
{
digit[i] = temp1 % 10;
temp1 = temp1 / 10;
}
}
// Temperature control for devices (X10, i.e 390 is 39.0)
if ( temp_real > 390 )
RC0 = 1 ;
else
RC0 = 0 ;
if ( temp_real > 400 )
RC1 = 1 ;
else
RC1 = 0 ;
if ( temp_real > 420 )
RC2 = 1 ;
else
RC2 = 0 ;
if ( temp_real > 500 )
RC3 = 1 ;
else
RC3 = 0 ;
if ( temp_real < 350 )
RC4 = 1 ;
else
RC4 = 0 ;
if ( temp_real < 320 )
RC5 = 1 ;
else
RC5 = 0 ;
if ( temp_real < 300 )
RC6 = 1 ;
else
RC6 = 0 ;
if ( temp_real < 250 )
RC7 = 1 ;
else
RC7 = 0 ;
DelayMs(200);
}
}
void adc_delay(void)
{
//19 Cycles
char n;
for(n=0; n<2; n++)
{
NOP();
}
}
void set_adc_ch(unsigned char channel)
{
ADCON0 = channel | ADCON0_VALUE;
}
unsigned int adc_read(void)
{
ADGO = 1; // Start Conversion, 1 cycles
NOP();
while(ADGO); // wait for conversion complete
adc.ch[0] = ADRESL;
adc.ch[1] = ADRESH;
return adc.i;
}
void interrupt timer (void)
{
static unsigned char display[11] = {0x3F, 0x06, 0x5B, 0x4F, 0x66, 0x6D, 0x7D, 0x07, 0x7F, 0x6F, 0x79};
static unsigned char d, i;
if ( i > 2 )
{
d = 0b1111011; // Only one Common Cathode display ON
i = 0;
}
PORTE = 0xFF; // Off display
PORTB = display[digit[i]];
PORTE = d; // Turn on curresponding segment
i += 1;
d = d >> 1;
TMR0 = 0;
T0IF = 0;
}
void DelayMs(unsigned char cnt)
{
unsigned char i;
do {
i = 4;
do {
DelayUs(250);
} while(--i);
} while(--cnt);
}
