原创 Key 读取和事件处理

//==========================================================

//

//                    Program for Key_HMI                                                

//

//

// MCU:   ATmega169@2MHZ

// DATE： V10  @ 07022008THUAM                                            

// 

//       

//==========================================================   

#define uchar unsigned char

#define uint   unsigned int

#define ulong  unsigned long

#define schar signed char

#define sint  signed int

#define slong signed long

//----------      RAM & BIT define    -----------------                                      

uchar         KEY_BUFF0_R,KEY_BUFF1_R,KEY_BUFF2_R,            // KEY read buffer

              　 KEY_BUFF3_R,KEY_BUFF4_R,KEY_BUFF5_R,

            　 KEY_BUFF6_R,KEY_BUFF7_R,KEY_BUFF8_R；

//----------      I/O PIN define      ------------------

                                                            // KEY input I/O

#define   I_KEY_0_PORT    PINE                                      

#define   I_KEY_0_B       2

#define   I_KEY_1_PORT    PINE                             

#define   I_KEY_1_B       3

#define   I_KEY_2_PORT    PINE                                      

#define   I_KEY_2_B       4

#define   I_KEY_3_PORT    PINE                     

#define   I_KEY_3_B       5

#define   I_KEY_4_PORT    PINE                                         

#define   I_KEY_4_B       6

#define   I_KEY_5_PORT    PINE                           

#define   I_KEY_5_B       7

#define   I_KEY_6_PORT    PINB                                         

#define   I_KEY_6_B       0

#define   I_KEY_7_PORT    PINF                           

#define   I_KEY_7_B       7

#define   I_KEY_8_PORT    PINF                                         

#define   I_KEY_8_B       6

//----------      const     define    ------------------

#define   KeyConti_D        200

#define   KEY_D              5

//---------------  key_pro / 按键底层驱动   -----------------

void key_pro( void )

{                                                                                                                                                                         　　　　　　　　　　　　　　 // time_base: 16ms

if( (T_BASE0_R.BYTE & 0B00011100) == 0B00001000 )

     {

                                                                 　　　　　　　 // KEY read

        if( (I_KEY_0_PORT & (1<<I_KEY_0_B)))  KEY_BUFF0_R = 0;

        if( (I_KEY_1_PORT & (1<<I_KEY_1_B)))  KEY_BUFF1_R = 0;

        if( (I_KEY_2_PORT & (1<<I_KEY_2_B)))  KEY_BUFF2_R = 0;

        if( (I_KEY_3_PORT & (1<<I_KEY_3_B)))  KEY_BUFF3_R = 0;

        if( (I_KEY_4_PORT & (1<<I_KEY_4_B)))  KEY_BUFF4_R = 0;

        if( (I_KEY_5_PORT & (1<<I_KEY_5_B)))  KEY_BUFF5_R = 0;

        if( (I_KEY_6_PORT & (1<<I_KEY_6_B)))  KEY_BUFF6_R = 0;

        if( (I_KEY_7_PORT & (1<<I_KEY_7_B)))  KEY_BUFF7_R = 0;

        if( (I_KEY_8_PORT & (1<<I_KEY_8_B)))  KEY_BUFF8_R = 0;

        if( KEY_BUFF0_R != 255 )   KEY_BUFF0_R++;

        if( KEY_BUFF1_R != 255 )   KEY_BUFF1_R++;

        if( KEY_BUFF2_R != 255 )   KEY_BUFF2_R++;

        if( KEY_BUFF3_R != 255 )   KEY_BUFF3_R++;

        if( KEY_BUFF4_R != 255 )   KEY_BUFF4_R++;

        if( KEY_BUFF5_R != 255 )   KEY_BUFF5_R++;

        if( KEY_BUFF6_R != 255 )   KEY_BUFF6_R++;

        if( KEY_BUFF7_R != 255 )   KEY_BUFF7_R++;

        if( KEY_BUFF8_R != 255 )   KEY_BUFF8_R++;         

      }

    }                                      

//---------------  key_process_pro / 按键事件驱动   -----------------

void key_process_pro( void )

{                                                                                                                                                                      　　　　　　　　　　　// time_base: 16ms

if( (T_BASE0_R.BYTE & 0B00011100) == 0B00001100 )

     {         

          if( KEY_BUFF0_R == KEY_D ) 

         ｛                                                              // Key0 press

             }

          if( KEY_BUFF1_R == KEY_D )

              {                                                                                                                                                                                                    // Key1 press            

              }

       if( KEY_BUFF2_R == KeyConti_D )

         {                                                                                                                                                                                      // Key2 long_time_press

         }

       if( KEY_BUFF3_R >  KeyConti_D )

         {                                                                                                                                                                                        // Key3 long_time_press            

        }

      }

}

key_hmi.c  https://static.assets-stash.eet-china.com/album/old-resources/2009/2/7/523ee92c-b678-48ed-b211-15aab41f2bc4.rar            key读取.PDF

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