Unexpected interrupt generated while debugging

srinivas venuvanka

Other Parts Discussed in Thread: TM4C123GH6PM, TM4C123GH6PGE

Hi,

I am srinivas,

i am using tiva c series tm4c123gh6pge. when i am debugging control will transfers to default interrupt handler. please find the solution quickly. i am placing the code below. please find it.(but its works when im using tm4c123gh6pm libraries)

ROM_TimerConfigure(TIMER0_BASE, TIMER_CFG_A_PERIODIC);

ROM_TimerLoadSet(TIMER0_BASE, TIMER_A, ROM_SysCtlClockGet());

ROM_IntEnable(INT_TIMER0A); /////////////////////////////////////////////// never comes out here. code stops here.

ROM_TimerIntEnable(TIMER0_BASE, TIMER_TIMA_TIMEOUT);

ROM_TimerEnable(TIMER0_BASE, TIMER_A);

another problem:

over 11 years ago

0 Amit Ashara over 11 years ago

TI__Guru**** 244440 points

Hello Srinivas,

Is the interrupt handler for the timer declared in the startup file?

Regards
Amit

0 srinivas venuvanka over 11 years ago in reply to Amit Ashara

Intellectual 385 points

Hi amith,

no i placed timer interrupt handler in the main file.

i.e,

void
Timer0IntHandler(void)
{
TimerIntClear(TIMER0_BASE, TIMER_TIMA_TIMEOUT);

if(delayflag==1)
{
gc++;
if(gc==900)
{
dryrun=0;
delayflag=0;
gc=0;
}
}
else
{
gc=0;
}

}

0 Amit Ashara over 11 years ago in reply to srinivas venuvanka

TI__Guru**** 244440 points

Hello Srinivas,

The interrupt handler must be added to the Start Up Reset vector table in the startup_ccs.c so that CPU knows when timer interrupt is asserted where the execution will jump to. You can refer to the examples in TivaWare to see how the function is to be added to the startup file.

Regards
Amit

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Unexpected interrupt generated while debugging