Hello?
I'm trying to use external CAN Module with port (I mean no loop-back mode)
void CAN_vInit(void)
{
EE_tc_endint_disable(); //disable ENDINIT lock to access system register (Erika Enterprise API)
CAN_CLC.U = 0x00000000; //enable module control bit 0 means switch on
while((CAN_CLC.U & 0x00000002) == 2); //wait until module is enabled
CAN_KRST0.U = 1;
CAN_KRST1.U = 1;
while(CAN_KRST0.U != 0x2);
CAN_KRSTCLR.U = 1;
CAN_OCS.U = 0x00000001;
CAN_FDR.U = 0x43FF; //load fractional divider register -> it is diffrent from tc1797 start here!!!
EE_tc_endint_enable(); //enable ENDINIT lock to protect system register (Erika Enterprise API)
CAN_MCR.U = 0x1; //set clk source. it is only possibly modified when NCR0.CCE bit is set.
CAN_NCR0.U = (1 << 6) | 1; //initialization and configuration mode for CAN node 0
CAN_NIPR0.U = 0x00000000; // load node 0 interrupt pointer register
CAN_NECNT0.U = 0x00600000;
CAN_NPCR0.U = 0x00000000; //set NPCRx.RXSEL 001 to select Port 20.8 for TXDCAN0 and Port 20.7 for RXDCAN0A
P02_IOCR0.U = 0x00001000; //P02.1 RXCAN0
P02_IOCR4.U = 0x00008800; //P02.5 TXCAN0
CAN_NBTR0.U = 0x00003449; //set baud rate for 1Mbit/s
//Allocate Message objects to CAN nodes
while(CAN_PANCTR.U & (0x00000100 | 0x00000200));
CAN_PANCTR.U = 0x01000002;
while (CAN_PANCTR.B.BUSY);
//Init MO 0
//CAN_MOCTR0.U = 0x0EA80000;
//CAN_MOCTR0.U = (CAN_MOCTR0.U & ~0xFFFFFFFF) | ( 1 << 27) | ( 1 << 26 ) | ( 1 << 25) | ( 1 << 21);
CAN_MOCTR0.U = 0x0EA80000 | ( 1 << 21);
CAN_MOFCR0.U = (8 << 24);
//CAN_MOAR0.U = (1 << 30) | (0xFF << 18);
CAN_MOAMR0.U = 0x3FFFFFFF; //load MO0 acceptance mask register
//CAN_MOAR0.U = 0xDFF00000; // load MO0 arbitration register
CAN_MOAR0.U = 0xA0000000;
//Load Data, Start CAN nodes
CAN_MODATAL0.U = 0x00000000;
CAN_MODATAH0.U = 0xFF000000;
CAN_NCR0.U &= ~((1<<6) | 1); //reset INIT and CCE to start the CAN Nodes
while(1)
CAN_MOCTR0.U = 0x07000000; // transmit
} // End of function CAN_vInit
This is my code. I use Erika Enterprise for building the project.
I think that there is a problem with ports but I don''t know why it doesn't work.
Please let me know how I can get through this problem.
