Instructions

280Libraries

The return value expresses how often a interrupt got triggered until the function Irq_GetCount() has been

called. A value greater 1 shows that the interrupts

are triggered more rapidly than the interrupt service routine is processed.

5.13.4 Irq_SetVect

Interrupt Functions Example

Syntax

void Irq_SetVect(byte irqnr, dword vect);

Sub Irq_SetVect(irqnr As Byte, vect As ULong)

Description

Defines an interrupt service routine for a specified interrupt. At the end of the interrupt service routine the

function Irq_GetCount() has to be called, otherwise the interrupt service routine gets called continuously. A

vect of value Null sets the interrupt inactive again.

Parameter

irqnr specifies the interrupt type (see table)

vect is the name of the interrupt function to be called

5.13.5 IRQ Example

Example: Usage of Interrupt Routines

// INT_100HZ (AVR32Bit) or Timer 2 (MEGA) are normally called all 10ms.

// In this example the variable cnt gets increased every 10ms by one.