?? main.c
字號:
/************************************************************/
/* PROJECT NAME: FIR */
/* Project: LPC2100 Training course */
/* Engineer: T Martin tmartin@hitex.co.uk */
/* Filename: main.c */
/* Language: C */
/* Compiler: Keil ARM V2.00b */
/* Assembler: */
/* */
/************************************************************/
/* COPYRIGHT: Hitex UK Ltd 2005 */
/* LICENSE: THIS VERSION CREATED FOR FREE DISTRIBUTION */
/************************************************************/
/* Function: */
/* */
/* Example Interrupt program for LPC2100 */
/* */
/* Demonstrates configuring a function as an ISR */
/* */
/* Oscillator frequency 12.000 Mhz */
/* Target board Keil MCB2100 */
/************************************************************/
#include <LPC21xx.H>
void FIQ_Handler (void) __fiq; //declare FIQ ISR
void initFiq (void);
void main (void)
{
initFiq(); //Initilise the Fast interrupt source
IOCLR1 = 0x00FF0000; //clear the LED pins
while(1)
{
; //Loop here forever
}
}
void FIQ_Handler (void) __fiq
{
IOSET1 = 0x00FF0000; //Set the LED pins
EXTINT = 0x00000002; //Clear the peripheral interrupt flag
}
void initFiq(void)
{
IODIR1 = 0x00FF0000; //Set the LED pins as outputs
PINSEL0 = 0x20000000; //Enable the EXTINT1 interrupt
VICIntSelect = ; //Enable a Vic Channel as FIQ
VICIntEnable = 0x00008000;
}
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