 stefanovic
Newbie
Messages : 5
Inscrit(e) le: 12/08/2010
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 Posté le 25/04/2011 16:02 | | | Petit probleme dans mon programme ccs compiler |
bonjour a tous! 
une partie de mon pfe consiste aprogrammer la carte electronique a base de PIC, tout va bien mais ISIS m'indique un petit probleme lors de la simulation : "[PIC16 ADC] PC=0x0.. ADC conversion strated before 'wait' time has expired following previous conversion or channel change"
voila mon programme:
#include<16f877.h>
#use delay (clock=4000000)
#use rs232 (baud=9600,rcv=PIN_C7, xmit=PIN_C6)
#fuses XT,NOWDT,NOPROTECT,NOLVP
#include<math.h>
#include <stdlib.h>
#define use_portb_lcd TRUE
#include <lcd.c>
//affichage sur ecran
void ecran (long int x)
{
printf("Temperature1:%3ld C\\r",x);
delay_ms(1000);
}
void ecran1 (long int y)
{
printf("Temperature2:%3ld C\\r",y);
printf("-----------------------------------------------------\\r");
delay_ms(1000);
}
//Affichage Sur LCD
void affichage (long int x)
{
lcd_gotoxy(1,1);
printf(lcd_putc,"t1=%3ldC",x);
}
void affichage1 (long int y)
{
lcd_gotoxy(9,1);
printf(lcd_putc,"t2=%3ld C",y);
}
//La Lecture et la converission A/N du tensiondu por A/N et elle retourne la temperature equivalente
int lecture ()
{
float valr,val,T;
float B=9.7,A=13.6;//Les variables caracterstique de notre capteur de température
float Rc;
long int t1;
val=read_adc(ADC_START_AND_READ);
valr=(val*2.5)/128;
Rc=((1000*valr)/(5-valr));
T=B/(log(Rc/A));
t1=ceil(T);
return(t1);
}
//La Lecture et la converission A/N du tensiondu por A/N et elle retourne la temperature equivalente
int lecture1 ()
{
float valr1,val1,T1;
float B=9.7,A=13.6;//Les variables caracterstique de notre capteur de température
float Rc1;
long int t2;
val1=read_adc(ADC_START_AND_READ);
valr1=(val1*2.5)/128;
Rc1=((1000*valr1)/(5-valr1));
T1=B/(log(Rc1/A));
t2=ceil(T1);
return(t2);
}
//Programme Principale
void main()
{
long int val_res, val_res1;
printf(" starting convertion : \\r");
delay_ms(1500);
lcd_init();
SETUP_ADC_PORTS(ALL_ANALOG);
SETUP_ADC(ADC_CLOCK_INTERNAL);
while(true)
{
SET_ADC_CHANNEL(0);
val_res=lecture();
ceil(val_res);
affichage(val_res);
delay_us(400);
ecran(val_res);
delay_us(400);
SET_ADC_CHANNEL(1);
val_res1=lecture1();
ceil(val_res1);
affichage1(val_res1);
delay_us(400);
ecran1(val_res1);
delay_us(400);
}
}
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stefanovic
