I am using a PIC32MX575 device on a custom board which includes a CAN bus interface with mikroC PRO & FreeRTOS.
It had been working fine until I added a task to read from the CAN interface.
char _data[8];
unsigned int datalen, flags;
unsigned long id;
static void TestCANTask(void *params)
{
while(TRUE)
{
vTaskDelay(2);
/*deal with iso-tp stuff first*/
if (CAN1Read(&id, _data, &datalen, &flags) > 0)
{
//do something
asm nop;
}
}
}
This does work ok, I can put a breakpoint on the nop and it triggers correctly. However as soon as I restart the code it generates an exception at portISR_ENTRY() (from looking at EPC register). The same thing happens if I single step the code.
The cause register seems to indicate a data bus exception (0x1080041C)?
It's quite odd - any ideas?
Thanks,
Guy
