Lpc2000

If anybody out there has an idea or program how to use the timer interrupt with lpc2106 pl................... help
 
Regards 
 
Vicky

		
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Hello Vicky,

This is a snip of my code for the LPC2129, don't know about
the LPC2106 exactly, but I guess it will be the same or almost the same.

Beside this code you also need to enable the IRQ's if this isn't done in 
  your startup code already.

Succes,
Aalt



<snip>
#include "LPC21xx.h"

unsigned long timeval;

// declare tc0 as interrupt handler
void isr_tc0 (void) __attribute__ ((interrupt("IRQ")));

//-----------------------------------------------------------------------------
// Setup the Timer Counter 0 and prepare it for IRQ
//-----------------------------------------------------------------------------

void initTimer0 (unsigned long pclk_cycles) {
   T0MR0 = pclk_cycles-1;                 // 'n' cycles needs match 'n-1'
   T0PR = 0;                              // Timer 0 incr on every pclk
   T0MCR = 3;                             // Interrupt and Reset on MR0
   T0TCR = 1;                             // Timer0 Enable

   timeval=0;                             // reset timertick counter

   VICIntSelect &= ~(1<<4);               // Timer 0 Interrupt is an IRQ
   VICVectAddr0 = (unsigned long)isr_tc0; // set interrupt vector in 0
   VICVectCntl0 = 0x20 | 4;               // use it for Timer 0 Interrupt
   VICIntEnable = (1<<4);                 // Enable Timer0 Interrupt
}


//-----------------------------------------------------------------------------
// Timer Counter 0 Interrupt handler
//-----------------------------------------------------------------------------

void isr_tc0 (void) {
   timeval++;                             // increment timertick

   T0IR = 1;                              // Clear interrupt flag
   VICVectAddr = 0;                       // Acknowledge Interrupt
}

<end of snip>

vicky gosar wrote:
> If anybody out there has an idea or program how to use the timer 
> interrupt with lpc2106 pl................... help
> 
> Regards
> 
> Vicky
> 
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Aalt Lokhorst
Schut Geometrische Meettechniek bv
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The Netherlands
Tel: +31-50-5877877
Fax: +31-50-5877899
E-mail: Lokhorst@...
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