kbi.c

加速度信息采集程序.主要是通过界面显示物体移动的信息采集。

#include "freescale_radio_hardware.h"
#include "kbi.h"
#include "eventDefs.h"

extern UINT16 gu16Events;
extern UINT16 gu16msTimer;
extern UINT16 gu16timerEvent[2];
UINT8 u8keys;

#if defined (HCS08Q)


  #pragma CODE_SEG __NEAR_SEG NON_BANKED
  __interrupt void KBIisr (void) {

     u8keys = ~PTDD;
     u8keys = u8keys & 0x0F;
     
     switch (u8keys)
     {
     
      case KBI_SW1:
        gu16timerEvent[1] = gu16msTimer + KBI_DEBOUNCE;    
  	    gu16Events |= KBI2_EVENT;
      break;
      case KBI_SW2:
        gu16timerEvent[1] = gu16msTimer + KBI_DEBOUNCE;    
  	    gu16Events |= KBI3_EVENT;
      break;      
      case KBI_SW3:
        gu16timerEvent[1] = gu16msTimer + KBI_DEBOUNCE;    
  	    gu16Events |= KBI4_EVENT;
      break;
      case KBI_SW4:
        gu16timerEvent[1] = gu16msTimer + KBI_DEBOUNCE;    
  	    gu16Events |= KBI5_EVENT;
      break;
                  
      default:      
        gu16timerEvent[1] = gu16msTimer + KBI_DEBOUNCE;    
  	    gu16Events |= KBI2_EVENT;
      break;
     }

     
     KBI2SC_KBACK = 1;
   
  }
  #pragma CODE_SEG DEFAULT   
#else
  interrupt void KBIisr (void) {


     

     u8keys = ~PTAD;
     
     /* Still in debounce time - just return */
     if (gu16timerEvent[1] != 0) {
        KBI1SC_KBACK = 1;
        return;
     }
        
     if ((u8keys & KBI_SW1) == KBI_SW1) {
        gu16timerEvent[1] = gu16msTimer + KBI_DEBOUNCE;
        gu16Events |= KBI2_EVENT;
     }
     
     if ((u8keys & KBI_SW2) == KBI_SW2) {
        gu16timerEvent[1] = gu16msTimer + KBI_DEBOUNCE;    
  	   gu16Events |= KBI3_EVENT;
     }
     
     if ((u8keys & KBI_SW3) == KBI_SW3) {
        gu16timerEvent[1] = gu16msTimer + KBI_DEBOUNCE;
        gu16Events |= KBI4_EVENT;
     }
     
     if ((u8keys & KBI_SW4) == KBI_SW4) {
        gu16timerEvent[1] = gu16msTimer + KBI_DEBOUNCE;    
  	   gu16Events |= KBI5_EVENT;
     }
     
     KBI1SC_KBACK = 1; 
     
  }
#endif    
void KBIInit(void) {

     PB0IE = 1;  /* Enable KBI PB0 */
     PB1IE = 1;
     PB2IE = 1;
     PB3IE = 1;
     
           
     
}