key.h

来自「ARM 7系统的应用 采用 LPX 2103作为处理器 集成了Mp3」· C头文件 代码 · 共 54 行

/**--------------File Info-------------------------------------------------------------------------------
** File Name: config.h
** Last modified Date:  2004-09-17
** Last Version: 1.0
** Descriptions: User Configurable File
**
**------------------------------------------------------------------------------------------------------
** Created By: Chenmingji
** Created date:   2004-09-17
** Version: 1.0
** Descriptions: First version
**
**------------------------------------------------------------------------------------------------------
** Modified by:
** Modified date:
** Version:
** Descriptions:
**
********************************************************************************************************/
#ifndef __KEY_H 
#define __KEY_H 

void __irq Eint0IRQ(void)
{                                                                      
   
   int_flag=1;
   int_type=1;
   
       
   EXTINT = 0x01;                                                     
   VICVectAddr = 0x00;                                              
}


void init_int()
{
	IRQEnable();                                                       
    
    EXTMODE  = 0x00;                                                   
    EXTPOLAR = 0x00;

    VICIntSelect = 0 << 14;                                           
    VICVectCntl0 = 0x20 | 14;                                         
    VICVectAddr0 = (uint32)Eint0IRQ;                                   
    VICIntEnable = 1 << 14;                                           

    EXTINT = 0x01;
}

#endif
/*********************************************************************************************************
**                            End Of File
********************************************************************************************************/