Lpc2000

Hi Rohan,

In a quick read of your code, I hope you commented out the

MEMMAP = 2;

For the Flash version, 2 is for re-map of vectors to RAM.

- Gary Greene

rohan patil wrote:
> hi everybody
> 
> i am using lpc2106 arm microcontroller. i am using iar
> kickstart board for jtag debugging.
> The timer interuppt & watchdog interrupts are
> configured to fiq( timer interrupt has highest
> priority assigned)
> while debugging with jtag my code is running
> perfectly(executing all interrupt functions) but when
> i use the same code for standalone operation by flash
> programming
> its halting at starting of timer..
> External interrupts are also not functioning in
> standalone mode
> please help to solve this problem......
> 
> 
> initialisation sequence for timer & interrupt is as
> follows
> 
> 
> VPBDIV=0x1;
> MAMCR=0x02;
> 
>   MEMMAP = 2;
> LPC210xSystemInit();        // System initialization,
> this will map the exception vectors
> PINSEL0|=0x55550005; ();// Set up peripheral registers
> 
> 
> 
> 
> uartinit1();             /uart initialisation
> uartinit0();
> 
> 
>   __disable_interrupt();// First disable interrupts.
>  
>   LPC210xInitVIC();    // Setup interrupt controller.
>   WDT_INT();// Watchdog
>    InitTimerInt1();             //timer interuupt init
> LPC210xInitTimer();      // Periodic timer
> initialization.
> .
> .
> __enable_interrupt();
> LPC210xStartTimer();   // Start periodic timer.
>  
> 
> initialisation code for timer interuppt & watchdog is
> as follows
> 
> 
> void InitTimerInt1()
> {
>  
>   VICIntSelect &= ~VIC_TIMER0_bit; // IRQ on timer 0
> line.
>   VICVectAddr1 = (unsigned int)&TimerBeatmod;
> /timerbeatmod is timer interrupt service function
> VICVectCntl1 = 0x20 | VIC_TIMER0; // Enable vector
> interrupt for timer 0.
>   VICIntEnable = VIC_TIMER0_bit;    // Enable timer 0
> interrupt.
>  
> }
> 
> 
> 
> WDT_INT()
> {
> WDTC=0x1ff;    /counter  value
>   WDMOD=0x3;  /watchdog reset mode
> }
> 
> vic  interrupt initialistion is as follows...
> 
> 
> void LPC210xInitVIC()
> {
>   // Setup interrupt controller.
>   VICProtection = 0;
>   // Disable all interrupts but the one used for the
> ROM monitor
>   VICIntEnClear = 0xffffffbf;
>   VICDefVectAddr = (unsigned int)&DefDummyInterrupt;
> 
> Regards....
> 
>   Rohan Patil
> 
> 
> 
> 
>            
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