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Discussion Groups | LPC2000 | IAR LPC2129 TIMER INTERRUPT PROGRAM not work

Discussion group dedicated to the Philips LPC2000 family of ARM MCUs

IAR LPC2129 TIMER INTERRUPT PROGRAM not work - zied130187 - Nov 24 10:08:51 2010

/*-------------------*/
#include
#include "hardware.h"
long timeval=0;

__irq __arm void tc0 (void); // Generate Interrupt
void init_timer (void);

/*-------------------*/
void main(void)
{
CPUinit();
init_timer();
A_LED1_ON;
while(1);
}

/* Setup the Timer Counter 0 Interrupt */
void init_timer (void)
{
T0MR0 = 149999; // 10mSec = 150.000-1 counts
T0MCR = 0x03; // Interrupt and Reset on MR0
T0TCR = 0x01; // Timer0 Enable
VICIntSelect = 0x00;
VICVectAddr0 = (U32)tc0; // set interrupt vector in 0
VICVectCntl0 = 0x20 | 4; // use it for Timer 0 Interrupt
VICIntEnable = 0x00000010; // Enable Timer0 Interrupt
}
/* Timer Counter 0 Interrupt executes each 10ms @ 60 MHz CPU Clock */
__irq __arm void tc0 (void)
{
A_LED1_OFF;
VICVectAddr = 0x00; // Acknowledge Interrupt
T0IR = 0x01; // Clear interrupt flag
}
i try to debug this program with IAR and olimex-P2129 and
the program don't launch any interrupt .

why the interrupt is not execute ?! any idea please

this the code of CPUinit();

void CPUinit(void)
{
PLLCFG_bit.MSEL=3; //M=3(4?),P=1(2?) PLLfreq = 235,9296 Mhz, CCLK = 58,9824 Mhz
PLLCFG_bit.PSEL=1;
PLLFEED=0xAA;
PLLFEED=0x55;
PLLCON_bit.PLLE=1; // Enable the PLL
PLLFEED=0xAA;
PLLFEED=0x55;
while(!(PLLSTAT & PLOCK)); // Wait for PLL to lock

//Init MAM & Flash memory fetch
MAMCR_bit.MODECTRL=2;
MAMTIM_bit.CYCLES=4;
VPBDIV_bit.VPBDIV=1; //pclk = cclk

//GPIO init
A_PULL_UP;
A_LED1_OFF;
A_LED2_OFF;
PINSEL0=0; //P0 lower 16 bits all GPIO
PINSEL1=0; //P0 upper 16 bits all GPIO
IO0DIR=0x01003101;
//IODIR in binary 0000 0001 0000 0000 0011 0001 0000 0001 //...P0.12, P0.13 are output(LEDs) also TXD0,TXD1,TD2

VICProtection = 0;

}


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