Help me implement CAN code on LPC2129 ARM microcontroller

[nelsonmjk]

i need c code for communicating between CAN controllers of two different lpc2129/01 controllers, i just want to send one single message with same id of 3/5 characters from 1st lpc2129 to next lpc2129 , anyone please help me

best regard
nelson

 

[udayan92]

i need c code for communicating between CAN controllers of two different lpc2129/01 controllers,

Will you be configuring the LPC2129 microcontroller(s) to act as network device(s) for a CAN network,or will you be attaching a CAN module to them which will receive instructions from a microcontroller?

Please give some more details.

 

[nelsonmjk]

actually im try to configure inbuilt CAN controllers of lpc2129/01(transmit from CAN1 and received by CAN2), that is communication between two lpc2129 controllers through inbuilt CAN controllers. sorry for the time delay for replay

 

[FvM]

The LPC21xx can controllers are software compatible with industry standard controllers, there should be plenty of software examples. I would also look for example code from NXP.

Personally I'm not using CAN with NXP controllers. I recently implemented CAN for PIC32 within half an hour by putting together the plib library examples.

 

[nelsonmjk]

thanks for the information , but actually i already brought lpc2129 boards, and i just need basic level program

 

[bigdogguru]

What compiler set are you using?

If KEIL, it includes at least one example of CAN implementation for the LPC2129.

BigDog

 

[nelsonmjk]

Now i am using this following codes to transmit and receive between two mcb2100 development boards without using any acceptance filter, bcoz i only using two nodes, can any one help me to sort out the problems with this codes please.

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code for transmitting
 
 
 
int main()
{
PINSEL1|=0X00010000;// pin0.24 TD2
initLCD();
initClocks();
 
init_can();
data=0x3FF;
while(1)
{
C2TFI1=0X00040000;
while(!(C2SR&0X00000004));
C2TID1=0X00000002;
C2TDA1=data;
C2CMR=0X00000001;
LCD_Cmd(0x80);
 
 LCD_WriteString("sending");
 
void init_can()
{
C2MOD=0X00000001;
C2BTR=0X001C001D;
C2SR=0X00000000;
C2MOD=0X00000000;
AFMR=0X00000002;  //AccBP=1 not using filter
}
 
//////////////////////////////////////
receiving part program
////////////////////////////////////////////////////
 
int main()
{
PINSEL1|=0X00004000;// Pin 0.23  RD2
 initLCD();
initClocks();
 
init_can();
 LCD_WriteString("in main");
 
 while(1);
return 0;
}
void init_canrx()
{
 
C2MOD=0X00000001;
C2BTR=0X001C001D;
C2SR=0X00000000;
C2IER=0X00000001;
C2RFS=0X00000000;
C2RID=0X00000000;
C2RDA=0X00000000;
C2MOD=0X00000000;
 
 
AFMR=0X00000000;   // NOT using filter
 
SFF_sa = 0x00000000;
SFF_GRP_sa = 0x00000000;
EFF_sa = 0x00000000;
EFF_GRP_sa = 0x00000000;
ENDofTable = 0x00000000;
 
AFMR=0X00000002; // AccBP=1
}
void init_irq()    //RD2-PIN 0.23
{
 
 
VICVectCntl0=0x20|0x1B; 
VICVectAddr0=(unsigned) canisr;
VICIntEnable=0x08000000;
 
}
__irq void canisr()
{
while(!(C2SR&0X00000001));
C2CMR=0X00000004;
 data=C2RDA ;
LCD_Cmd(0x01);
LCD_Cmd(0x80);
LCD_WriteString("rcvd data :");
lcd_intiger(data);
 
VICVectAddr=0x00000000;
}

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THANKS IN ADVANCE