Posted on July 26, 2005 at 11:26Hello,
I use ST10f276 microcontroller with KEIL compiler and I have some problems with the CAN controller. CAN1 interrupt must be enabled additionaly by the register XIR0SEL.
I do the following:
- CAN-interrupts initialisation:
XPERCON |= 0x401; //XMISCEN=1, CAN1EN=1
SYSCON |= 0x4; //XPEN=1
CAN1_CR = 0x2A; //DAR=1, EIE=1, IE=1
XIR0SET = 0x100; //CAN1 Interrupt Enable=1
XP0IE = TRUE;
- Results:
DEBUG:
OK
RELEASE:
CAN Interrupts are not generated
Why in debug mode everithing is Ok, but in release it doesn't work?
I use the CAN to send with a PDO the content of XIR0SEL and I can observe the communication with a special tool.
I saw that each line changes the content of register XIR0SEL (???):
For example:
XIR0SEL is =0x0700
CAN1_IF1_CM = 0xB7; //IF_WRRD=1, IF_ARB=1, IF_CNTRL=1, IF_TXR_ND=1, IF_DATA_A=1, IF_DATA_B=1
now XIR0SEL is changed to 0x00B7 ???
CAN1_IF1_A2 = (0x350 << 2) | 0xA000; //IF_MSGVAL=1, IF_DIR=1;
and now XIR0SEL is changed to 0xAD3C ???
CAN1_IF1_MC = 2 | IF_EOB;
XIR0SEL is changed to 0x0082 ???
Maybe I'm doing something wrong... Is there anybody who can help me?
