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nfs
Joined: 28 Apr 2004
Posts: 18
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| where's the bug in this code? |
 Posted: Fri May 21, 2004 9:23 am |
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sorry, i've a great problem with my code, it simulate successfully with ISIS simulator but when i wrote it to the PIC never seems to be right.
so if sone find the problem plz tell me
| Code: |
#include <16F876.h>
/* Set configuration bits in the PIC processor */
#fuses XT, NOPROTECT, NOPUT, NOWDT, NOBROWNOUT, NOLVP, NOCPD, NOWRT
//crystal, no watchdog timer, no low programming, no powerup timer, noprotect=memory protection off
#device adc=10
#device *=16
#use delay (clock=4000000) /* sets appropriate compiler constants 1µsecond instruction cycle */
#use standard_io ( a )
#use standard_io ( b )
#use standard_io ( c )
#define led1 PIN_A1 //led jaune commutateur '0'
#define led2 PIN_A2 //led verte commutateur '0'
#define led3 PIN_A3 //led rouge commutateur '0'
#define Vppfluct 1003 //seuil autorisé de fluctuation de la tension
#define Vppmin 973 //seuil pour lequel la tension est passée du niveau haut à un niveau plus bas*****
#define Vctq 921 //seuil de chute de la tension
#define tension_maxi_touche_0 34
#define tension_mini_touche_0 0
#byte INTCON = 0x0b //registre des interruptions
#byte PIE1 = 0x8c //registre contenant les autorisations d'interruptions
#byte PIR1 = 0x0c
#byte ADCON0 = 0x1f //registre du convertisseur
#byte ADCON1 = 0x9f //rôle des pins+justification du resultat de la conversion
#bit GO_DONE = ADCON0.2
#bit ADON = ADCON0.0
#bit ADIE = PIE1.6
#bit ADIF = PIR1.6
#define TMR1IE = PIE1.0
#define TMR1IF = PIR1.0
int16 ADCvaleur;
int32 ADCvtot;
int32 Counter1;
int32 Counter2;
int8 counter4;
int32 counter3 =499;
int32 cnt;
#int_TIMER2
TIMER2_isr()
{
Counter1++;
Counter2--;
}
void InitialiseADC ()
{
setup_port_a( RA0_ANALOG );
setup_adc( ADC_CLOCK_DIV_8 );
set_adc_channel( 0 );
delay_us(10);
}
void main(void)
{
long ADCvaleur;
int32 ADCvtot;
OUTPUT_B(0x00);// clear all pins on port b
ADCON0=0x81; // fosc/32, RA0, a/d off, a/d operating
ADCON1=0x8E; // an0 is a/d input, rest port a digital, internal ref, right justified
INTCON=0xc0; // enable global interrupts and peripherals
InitialiseADC();
if (ADIF=1)
ADIF = 0;
ADCvaleur = 0;
ADCvtot = 0;
Counter1 == 0;
setup_timer_2(T2_DIV_BY_4,5,5);
enable_interrupts(INT_TIMER2);
enable_interrupts(GLOBAL);
ADCvaleur=read_ADC();
while (Counter1<19999)
{
ADCvaleur=read_ADC();
if (ADCvaleur>Vppfluct)
{
output_high (led1);
}
else
if (ADCvaleur=Vppfluct)
{
output_low(led1);
disable_interrupts (INT_TIMER2);
delay_ms(10);
ADCvaleur=read_ADC();
if ((ADCvaleur<=tension_maxi_touche_0) && (ADCvaleur>=tension_mini_touche_0))
{
counter1==0;
setup_timer_2(T2_DIV_BY_4,5,5);
enable_interrupts(INT_TIMER2);
enable_interrupts(GLOBAL);
ADCvaleur=read_ADC();
while ((counter1<=counter3) && (ADCvaleur<=tension_maxi_touche_0) && (ADCvaleur>=tension_mini_touche_0))/* increment count */
{
ADCvaleur = Read_ADC(); /* read the ADC */
ADCvtot = ADCvtot + ADCvaleur; /* add it to total, for later averaging */
}
disable_interrupts (INT_TIMER2); /* don't allow interrupts */
ADCvtot /= (long)500; /* division par 500 échantillons pour calculer la moyenne des tensions relevée */
if ((ADCvtot<=tension_maxi_touche_0) && (ADCvtot>=tension_mini_touche_0))
{
continue;
}
else
{
output_high(led3);
}
counter1==0;
setup_timer_2(T2_DIV_BY_4,10,5);
enable_interrupts(INT_TIMER2);
enable_interrupts(GLOBAL);
ADCvaleur=read_ADC();
if ((ADCvaleur >= ADCvtot+ADCvtot*0.1))
{
disable_interrupts(INT_timer2);
delay_ms(20);
counter2==200;
setup_timer_2(T2_DIV_BY_4,15,5);
enable_interrupts(INT_TIMER2);
enable_interrupts(GLOBAL);
ADCvaleur=read_ADC();
if ((ADCvaleur>=Vppfluct) && (counter2>=0))
{
output_high(led2);
disable_interrupts(INT_timer2);
disable_interrupts(GLOBAL);
}
else
output_high(led3);
}
else
output_high(led3);
}
else
output_high(led3);
}
}
if ((counter1++==19999)&&(ADCvaleur>=Vppfluct))
{
disable_interrupts (INT_TIMER2);
output_high(led3);
output_low(led1);
disable_interrupts(GLOBAL);
}
}
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i know that is so longer but i can't delete parts cause it can be significant
thanks for your time
_________________
nfs
Last edited by nfs on Mon May 24, 2004 5:08 am; edited 1 time in total |
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rnielsen
Joined: 23 Sep 2003
Posts: 852
Location: Utah
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| Posted: Fri May 21, 2004 10:41 am |
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Just looking at your code, quickly, I can see that you are making a common mistake in swapping '=' and '=='. It looks like you are trying to assign '0' (zero) to Counter1 in several parts of your code but you are using '==' (equality) instead. Try looking through your code and make sure you have the correct '=' or '==' in each statement.
Ronald |
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ckielstra
Joined: 18 Mar 2004
Posts: 3680
Location: The Netherlands
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| Posted: Fri May 21, 2004 12:40 pm |
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Ronald is right, your major error is mixing '=' and '==' (at least 5 times).
Another bug:
| Code: |
if ((ADCvaleur>=Vppfluct) && (counter2>=0))
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counter2 is an unsigned int32, so Counter2 is doing nothing.
I suggest to change it to:
| Code: |
if ((ADCvaleur>=Vppfluct) && (counter2>0))
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and then also
| Code: |
int8 Counter2;
#int_TIMER2
TIMER2_isr()
{
Counter1++;
if (Counter2)
Counter2--;
}
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Carlo |
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guest
Guest
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| re |
| Posted: Tue May 25, 2004 10:25 am |
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i have the same idea than those who posted. you can verify if you have a infinished boucle.
bye |
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