Cogitum
Joined: 22 Mar 2012
Posts: 70
Location: France (Paris)
|
| 18F2480 problem to switch Can Filter correctly |
 Posted: Fri Jul 20, 2012 7:07 am |
 |
|
Hi
This program stop from time to time !
It switch himself id eg : 0x488 by 0x38D !
That mean : final result is wrong  !
any idea  ?
Thanks in advance
| Code: |
#include <18F2580.h> //
#DEVICE ADC=10
#fuses H4, NOPROTECT, PUT, BROWNOUT, NOWDT, NOLVP //H4 or HS
#use delay(clock=40MHZ,CRYSTAL=10MHZ)
// #use delay(clock=20000000)
#use rs232(baud=9600,parity=N,xmit=PIN_C6,rcv=PIN_C7,bits=8,stream=COM_18F6722)
#include <can-18xxx8.c>
#include <flex_lcd420.c>
#ZERO_RAM // RAZ
#define odo 0x38D // id
#define conso 0x488 // id
int32 T,T2;
int16 msec;
float distance,speed;// to see id = 0x38D
float conso_moyenne,conso_cumulee_mm3,conso_trajet;
short TopSeconde;
short TopSeconde2;
//short Top500ms;
short Top100ms;
int Cpt_Seconde;
// Variables UART link
short rs232_18F6722;
char buffer_rs232_18F6722[20];
int Compteur_rs232_18F6722;
struct rx_stat rxstat;
int32 rx_odo,rx_conso,id_nbr;// id
int in_odo[8]={0,0,0,0,0,0,0,0}; // odometer + speed
int in_conso[8]={0,0,0,0,0,0,0,0}; // Conso
int rx_len=8; // taille buffer de reception
//unsigned int32 rx_id;// id
//int8 in_data [8]={0,0,0,0,0,0,0,0}; // RPM
int32 C1,V0,V1;
//============================================================================//
//==================== iD Filter ============================//
//============================================================================//
/******* 11 Bits Filter *******/
void id(void)
{
can_set_mode(CAN_OP_CONFIG);
can_set_id(RX0MASK, 0x7FF, 0); //set mask 0 Force à 11 Bits
can_set_id(RX0FILTER0, id_nbr,0); //set filter 0 of mask 0
can_set_id(RX0FILTER1, id_nbr,0); //set filter 1 of mask 0
can_set_id(RX1MASK, 0x7FF, 0); //set mask 1
can_set_id(RX1FILTER2, id_nbr,0); //set filter 0 of mask 1
can_set_id(RX1FILTER3, id_nbr,0); //set filter 1 of mask 1
can_set_id(RX1FILTER4, id_nbr,0); //set filter 2 of mask 1
can_set_id(RX1FILTER5, id_nbr,0); //set filter 3 of mask 1
can_set_mode(CAN_OP_NORMAL);
}
//********* TIMER1 ***********/
#int_timer1
void TIMER1_isr(void)
{
if (msec++ >=38)//8 = 104 ms 38 =0.497 second
{
// T2++;
// output_toggle(pin_B4);
Top100ms=true;
msec=0;
}
//++++++++++++ CLOCK = 40MHZ +++++++++++//
if (cpt_seconde++ >= 38)// 156 = 2 second ,78 = 1.022 second
{
// T2++;
TopSeconde=true;
TopSeconde2=true;
Cpt_seconde=0;
}
}
//============================================================================//
//============================== MAIN Program ===============================//
//============================================================================//
void main()
{
setup_timer_1(T1_INTERNAL|T1_DIV_BY_2); // "by_1"=> 1,022 sec by 8==> 104 ms
enable_interrupts(INT_TIMER1); // by 2 pour 40MHZ
// enable_interrupts(INT_RDA);
enable_interrupts(GLOBAL);
can_init(); // initialisation du CAN
// code pour vitesse bus à 500K (2µs) Xtal 40MHZ (200ns)
can_set_mode(CAN_OP_CONFIG);
BRGCON1.brp=1; //
BRGCON1.sjw=1;
BRGCON2.prseg=2; //
BRGCON2.seg1ph=7; //
BRGCON2.sam=FALSE;
BRGCON2.seg2phts=FALSE;
BRGCON3.seg2ph=7; //2
BRGCON3.wakfil=TRUE;
lcd_init();
T=0;
T2=0;
// speed=0;
conso_cumulee_mm3=0;
conso_moyenne=0;
C1=0;
while(true)
{
//====================================================================//
//=========================== CAN DATA ==============================//
//====================================================================//
if(Top100ms)//(TopSeconde2)
{
T2++;
// output_toggle(Pin_B4);
//================== Frame Odometer 0x38D ================
id_nbr=odo; // id=909
id();
if ( can_kbhit() ) //...data in buffer ?
{
rx_odo=odo;
if (can_getd(rx_odo,in_odo,rx_len,rxstat)) //...get data from buffer !
delay_ms(300);
{
if (rx_odo == odo)
{
//============= SpeedVehicule Km/h ==========
V0=in_odo[0];
V1=in_odo[1];
speed = (V0*256+V1)*0.01; // speed en KM/h
distance=distance+speed*0.000277;// distance m/s
in_odo[0]=0;
in_odo[1]=0;
}
}
}
Top100ms=False;//Topseconde2=False;
}
delay_ms(250);
if (TopSeconde)
{
T++;
// output_toggle(Pin_B4);
//================ Frame Fuel 0x488 ===================
id_nbr=conso; // id = 1160
id();
if ( can_kbhit() ) //...data in buffer ?
{
rx_conso=conso;
if (can_getd(rx_conso,in_conso,rx_len,rxstat)) //...get data in buffer !
{
if (rx_conso == conso)
{
C1=in_conso[1]; // distance en m/s ; 1 mm3 = 0.000001 L
conso_cumulee_mm3 = conso_cumulee_mm3+(C1*80);//en mm3 si 20400 passe à 0
Conso_moyenne = ((Conso_cumulee_mm3/1000000)/(distance*1000))*100000;//L/100km
Conso_trajet = conso_cumulee_mm3*0.000001;// display en litre
in_conso[1]=0;
}
}
}
TopSeconde=False;
}
//======================= Display on LCD ==============================//
lcd_init();
lcd_gotoxy(1,1);
printf(lcd_putc,"Trajet=%3.1f",distance); // Kms cumulated
lcd_gotoxy(1,2);
printf(lcd_putc,"Km/h=%3.0f",speed); // Speed Vehicule
// printf(lcd_putc,"Km/h=%3.0f D=%3.1f",speed,D2);
lcd_gotoxy(-3,3);
printf(lcd_putc,"L/100=%3.1f",conso_moyenne); // L/100
lcd_gotoxy(-3,4);
printf(lcd_putc,"L/Trajet=%2.1f",conso_trajet); // L
}
} |
|
|
FAQ 
Search
Register
Profile 
Log in to check your private messages 
Log in
