TM4C1294KCPDT: tm4c1294kcpdt

Hi Nikhil,

Did you attempt to register interrupt 113? If so, how did you do it? If you used a driverlib IntRegister (or some variant of it), please refer to https://e2e.ti.com/support/microcontrollers/other/f/908/t/849627

If that is not the issue, what version of TI-RTOS are you using? How are you setting up the watchdog?

Todd 

Hi Todd,

I only trying to register USB interrupt as per the USB CDC example.

    // Install interrupt handler.
    m_HwiHandle = Hwi_create(INT_USB0, CdcExtension::HWInterruptHandler,NULL,&errorBlock);

VOID
CdcExtension::HWInterruptHandler(uintptr_t interruptInfo)
{
    // Application is ignoring interrupt and passing to library for handling.
    USB0DeviceIntHandler();
}

My Exception number is 3 and fault detailes are

TiRtos version is : 2.16.0.08

Regards

Nikhil

It looks like int 113 is INT_LCD0. Are you (or some other code) doing anything with this? Can you open the disassembly window and add IntRegister? Does it show up? If so, put a breakpoint at the beginning of the function and restart the application. Who is calling this function? 

Hi Todd,

Thanks for the reply.

how to add IntRegister in disassembly?..

Only I can search the memory addresss..

If I commenting watchdog portion result will be like this.

Fault address detailes also attaching. But using this address also I cant locate the the code which cause the exception.

Regards

Nikhil

Hi Nikhil,

Does your call to Hwi_create return successfully? Or does it get an exception before that? Also, you said in your first post that it worked if you didn't use the watchdog, but is that not true anymore according to your last post?

Can you open your applications .map file and see if there are any interrupt registering functions being pulled into the application? You may have to search for 'int', 'interrupt', 'register' etc. If there are such functions, that would be bad as TIRTOS must manage all interrupts for it to function correctly.