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turhan
Joined: 24 Aug 2012
Posts: 9
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| 18F25K80 CANbus problem |
 Posted: Fri Aug 24, 2012 10:14 am |
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hello
I am using standard can-18xxx8.c and can-18xxx8.h files to use CanBus system. But my IC which is 18F25K80 cant send data or receive. I looked by oscilloscope, RX-TX are working very well.
I think I have to find file for 18F25K80 or related family.
| Code: |
#include "18F25K80.h"
#device adc=12
//#fuses HSH,CANB,PROTECT,NOWDT,NOFCMEN,NOCPB,NOPUT,NOBROWNOUT,NOPLLEN,CANB
#fuses HSH,NOPLLEN,NOFCMEN,BROWNOUT,BORV27,NOWDT,PUT,NOCPD,STVREN,NODEBUG,NOWRT,NOWRTD,NOIESO,NOEBTR,NOEBTRB,MCLR,PROTECT,NOCPB,NOWRTB,NOWRTC,NOXINST,SOSC_DIG,CANB // próba
#use delay(clock=20M)
void main()
{
unsigned int32 rx_id;
int last_lcd_output=0xFF;
int curr_lcd_output;
setup_wdt(WDT_OFF);
setup_comparator(NC_NC_NC_NC);
setup_adc_ports(NO_ANALOGS);
setup_adc(ADC_OFF);
setup_vref(FALSE);
//setup_psp(PSP_DISABLED);
setup_ccp1(CCP_OFF); // Configure CCP1 as a PWM
setup_ccp2(CCP_OFF); // Configure CCP2 as a PWM
setup_ccp3(CCP_OFF); // Configure CCP2 as a PWM
setup_ccp4(CCP_OFF); // Configure CCP2 as a PWM
setup_ccp5(CCP_OFF); // Configure CCP2 as a PWM
can_init();
// can_set_mode(CAN_OP_LOOPBACK);
//unsigned int16 i;
setup_timer_1(T1_INTERNAL | T1_DIV_BY_1);
enable_interrupts(INT_TIMER1);
enable_interrupts(GLOBAL);
DATA_SURE_YAZARKEN_BEKLEME=0;
SAYAC_500_MIKRO=0;
MINO_CONTROL_DEMO();
YAZMA_BEKLEME_SAYACI=0;
IKAZ();
MINO_EX_IN_DATA_IKINCISI[0]=0;
MINO_EX_IN_DATA_IKINCISI[1]=0;
MINO_EX_IN[0]=0;
MINO_EX_IN[1]=0;
DATA_ESKIME_SAYACI=0;
for(;;)
{
DEVICE_ID_SPECIFY();
CAN_BUS_KAT_BILGISI_GONDER();
if ( can_kbhit() )
{DATA_ALAMAMA_SAYACI=0; // hata sayacını daha aldığında 0 la
if(can_getd(rx_id, buffer, rx_len, rxstat))
{
if (rx_id == DEVICE_ID) {
if(CRC_CONTROL(buffer[0],buffer[1],buffer[2])==1&&buffer[3]==235)
{ MINO_OUT[0]=buffer[1];
MINO_OUT[1]=buffer[0];
MINO_OKU_YAZ();
}
}
if (rx_id == INDICATOR_KNOWLEDGE)
{
GOSTERGE_BYTE_CIKIS=buffer[0];
AYUK_CIK_TYUK_CIK_MESGUL_KAPA_AC_YED1_YED2_YED_3=buffer[1];
SERI_DATA_OLUSTUR();
}
}
}
else{DATA_ALAMAZSA_RESETLE();
}
}
} |
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PCM programmer
Joined: 06 Sep 2003
Posts: 21708
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| Posted: Fri Aug 24, 2012 4:11 pm |
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| Quote: |
I am using standard can-18xxx8.c and can-18xxx8.h files to use CanBus
system. But my IC which is 18F25K80 cant send data or receive. I looked
by oscilloscope, RX-TX are working very well.
I think I have to find file for 18F25K80 or related family.
|
The CAN bus driver for the 18F4580 would be more accurate for your PIC:c:\program files\picc\drivers\can-18F4580.c
c:\program files\picc\drivers\can-18F4580.h |
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turhan
Joined: 24 Aug 2012
Posts: 9
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| Posted: Mon Aug 27, 2012 10:23 am |
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| i tried it , still problem is going |
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otaggart
Joined: 24 Aug 2012
Posts: 4
Location: Canada
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| Posted: Tue Aug 28, 2012 3:12 pm |
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Hi,
What compiler version are you using? I ask because I am also having a CAN bus problem, but mine is even less far along than yours (no signal visible on TX pin at all and PIC freezes when I attempt to enter loopback mode). Like you, I have also tried switching to the new driver with no success. |
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