isr1.c

来自「Cypress公司Cy7c6xxxx芯片的USB键盘及USB鼠标的firmwar」· C语言 代码 · 共 46 行

#define __SHOW_LIBRARY
#pragma option f0
/* 
 * CYC Code Development System
 * Tutorial Interrupt Example
 * ISR1.C
 * This code may be adapted for any purpose
 * when used with the CYC Code Development
 * System.  No warranty is implied or given
 * as to their usability for any purpose.
 * 
 * (c) Copyright 2000 Byte Craft Limited
 * 421 King St.N., Waterloo, ON, Canada, N2J 4E4
 * VOICE: 1 [phone]
 * FAX  : [phone]
 * email: [e-mail]
 * 
 * REVISION HISTORY
 * v1.00 AL 08/2000 Initial Version.
 */

                                                                                                          /*_rtccint_*/
/* use this directive to stop the compiler from saving the IX register */
/* #pragma option REGSAVEOFF */ 
                                                                                                          /*_rtccint_*/
#include <dev\c63000a.h>
#include <port.h>
                                                                                                          /*_rtccint_*/
int interrupt_mask;
int interrupt_count;

int GPIO_ISR(void)
{

        interrupt_count++;
        return(interrupt_mask);
}

void main(void)
{
        interrupt_count = 0;
        GLOBAL_INTERRUPT = interrupt_mask = GPIO_ENABLE;
        while(1); /* wait for interrupts */
}
                                                                                                          /*_rtccint_*/