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Lpc2000

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Message

Timer/counter interrupt

2006-05-29 by Mukund Deshmukh

Hi,

I have come across strange problem of time interrupt. My timer interrupt
routine is very simple.

void __attribute__ ((interrupt("IRQ"))) tc0_cmp(void);

/* Timer0 Compare-Match Interrupt Handler (ISR) */

void tc0_cmp(void)

{

T0FLG=1;

main1000++;

// haul1000++;

T0IR = TxIR_MR0_FLAG; // Clear interrupt flag by writing 1 to Bit 0

VICVectAddr = 0; // Acknowledge Interrupt (rough?)

}

The interrupt works ok. The moment I uncomment  haul1000++, the first
interrupt works and there after stops.

In short if  I increment one variable it works, if I  increment more than
one variable it stops.

The processor is LPC2138 and this is the only interrupt I am using.


Best Regards,

Mukund Deshmukh.
Beta Computronics Pvt Ltd
10/1, IT Park, Parsodi,
Nagpur-440022
Cell - 9422113746

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