interrupt_handle.c

ARM嵌入式系统关于触摸屏问题基于c语言实验代码

#define  FFRBR  (*(volatile unsigned long * )(0x40100000))
#define  FFTHR  (*(volatile unsigned long * )(0x40100000))
#define  ICIP   (*(volatile unsigned long * )(0x40d00000))
#define  ICPR   (*(volatile unsigned long * )(0x40d00010))
#define  ICMR   (*(volatile unsigned long * )(0x40d00004))



#define  GEDR0  (*((volatile unsigned long *)(0x40e00048)))
extern void port0_setbit(char);
extern void port0_clearbit(char);
extern void init_ads7843(void);
extern void ads7843_read_xy(void);




#include "ads7843.h"

__irq void IRQHandler(void)

{

   ICMR &= ~(1<<10);
   GEDR0 |=(1<<5);

   ads7843_read_xy();

   ICMR |= (1<<10);
}