We are using a 5329 processor and our (default isr) system hangs when "undefined" memory is addressed and the Core Watchdog timer goes off resetting the system..

[donmarquardt]

We are using a 5329 processor and our (default isr) system hangs when "undefined" memory is addressed. I have tried to use the Address error ISR( at Vector 3) with no success. I do not get the interrupt when I address the non-existent memory. Here is the code I use to install the interrupt handler. It does show in the EDS Client.  volatile MCF5329_STRUCT_PTR  mcf5329_ptr; mcf5329_ptr = (MCF5329_STRUCT_PTR) _PSP_GET_MBAR(); if (_int_install_isr( (uint_32)MCF5329_EXC_ADDRESS_ERROR,    (uint_32)MCF5329_EXC_ADDRESS_ERROR,    &AddressErrorInterrupt,    (void*)&Dummy_Data) == NULL)     {     printf("MCF5329_EXC_ADDRESS_ERROR _int_install_isr failed");     }     _mcf5329_int_init(MCF5329_EXC_ADDRESS_ERROR, CWD_INT_LEVEL, TRUE); I also tried the Core bus error interrupt at Source 62 in INTC0. Here is its code. As soon as the interrupt is enabled the ISR is called, even though I feel I cleared it. _INT_DISABLE();       volatile MCF5329_STRUCT_PTR  mcf5329_ptr;     mcf5329_ptr = (MCF5329_STRUCT_PTR) _PSP_GET_MBAR();   uchar SCMISR = mcf5329_ptr->SCMISR;   mcf5329_ptr->SCMISR = SCMISR;  // Clear Bus Error and core watchdog Interrupts     if (_int_install_isr(    (uint_32)MCF5329_INT_CFE,    &CFEInterrupt,    (void*)&Dummy_Data) == NULL)     {     printf("MCF5329_INT_CFE _int_install_isr failed");     }     _mcf5329_int_init(MCF5329_INT_CFE, CWD_INT_LEVEL, TRUE); //  mcf5329_ptr->SCMISR = 2;  // Clear and enable Bus Error     mcf5329_ptr->CFIER = 1;   // ENABLE Core Fault Interrupt     _INT_ENABLE();