Why does the following code not jump into ISR?

lpcware — Wed, 15 Jun 2016 19:48:31 GMT

Content originally posted in LPCWare by awinkX on Mon Mar 10 03:25:26 MST 2014
Iam using the LPC1111 with Keil and Ulink Pro

Following Code should jump into ISR with a falling edge on PIO1_5 but nothing happens.

void TIMER32_0_IRQHandler (void)
{
uint32_t irq_reason;

/* get IRQ reason */
irq_reason = LPC_TMR32B0->IR;

/* capture IRQ event */
if((irq_reason & 0x10)>0)
{

}

/* reset IRQ reason */
LPC_TMR32B0->IR = irq_reason;
}

int main (void)
{

SystemInit(); //12Mhz internal

/* Enable AHB clock to the GPIO domain. */
LPC_SYSCON->SYSAHBCLKCTRL |= (1<<6);
   /* Enable clock IOCON */
LPC_SYSCON->SYSAHBCLKCTRL |= (1<<16);

LPC_IOCON->PIO1_5 = 2| 2<<3 | 1<<5;                     //input/pullup/hysteresis/CAP0

GPIOSetDir( 1, 5, 0 );                                                //PIO1_5 AS INPUT
GPIOSetValue( 1, 5, 0 );

LPC_SYSCON->SYSAHBCLKCTRL |= (1 << 9);                  //enable clock signal to 32 bit timer0

LPC_TMR32B0->PR=1;                                                    //Prescaler 1
LPC_TMR32B0->TCR            = 2;                                      // Reset Timer
LPC_TMR32B0->CCR            =6;                                       //Capture on falling edge, Interrupt enable

NVIC_SetPriority(TIMER_32_0_IRQn, 1);
NVIC_EnableIRQ(TIMER_32_0_IRQn);

LPC_TMR32B0->TCR = 1;                                                 // Enable Timer

while(TRUE)
{
__NOP();
__NOP();
   __NOP();

}
}

Re: Why does the following code not jump into ISR?

lpcware — Wed, 15 Jun 2016 19:48:32 GMT

Content originally posted in LPCWare by awinkX on Mon Mar 10 07:29:27 MST 2014
Could it be that this error is caused by debugger?
When i set a systemresetReq over Periphals-> NVIC it jumps into ISR

Re: Why does the following code not jump into ISR?

lpcware — Wed, 15 Jun 2016 19:48:32 GMT

Content originally posted in LPCWare by awinkX on Mon Mar 10 08:09:29 MST 2014
Solved:
Its a Debug Setting Problem!
-> DEBUGGER SETTINGS-> Connect & Reset Options -> Reset = SYSRESETREQ-> it works

topic Why does the following code not jump into ISR? in LPC Microcontrollers

Why does the following code not jump into ISR?

Re: Why does the following code not jump into ISR?

Re: Why does the following code not jump into ISR?