CC2530 application-button to control light state changes

Independently build a new project and write and compile code to realize the change of the flashing state of the button control light and achieve the following task requirements:
[1] The program starts to run: the D4 light flashes, and the D3, D5, D6 lights go out.
[2] After pressing the SW1 button on the module to release, the D5 and D6 lights will blink alternately.
[3] Press the SW1 button again, D5, D6 lights off.
[4] Repeat the above two steps.
This question needs to define a flag for the state of the light. There are three states through the flag bit of the button.
State 1: D4 light flashes, D3, D5, D6 lights off.
State 2: D5 and D6 lights flash in turn.
State 3: D5 and D6 lights are off.

 

 

1 #include " ioCC2530.h " 
2  
3  #define D3 P1_0
 4  #define D4 P1_1
 5  #define D5 P1_3
 6  #define D6 P1_4
 7  #define SW1 P1_2
 8  
9 unsigned char stat = 0 ;    // light status flag 
10  
11  / * ======================= Simple delay function ===================== === * / 
12  void Delay (unsigned int t)
 13  {
 14    while (t--);
 15  }
 16  / * ======================= Port initialization function ================= ======= * / 
17  void Init_Port ()
 18  {
 19    P1SEL & = ~ 0x1b ;        // Set P1_0, P1_1, P1_3, P1_4 to general I / O port   
20    P1DIR | = 0x1b ;         // Set P1_0 , P1_1, P1_3, P1_4 are set to the output direction 
21    P1 & = ~ 0x1b ;           // Turn off 4 LED lights 
22    
23    P1SEL & = ~ 0x04 ;        // Set P1_2 to general I / O port 
24    P1DIR & = ~ 0x04 ;       // Set P1_2 to input direction 
25    P1INP & = ~ 0x04 ;        // Set P1_2 to pull up / down 
26    P2INP & = ~ 0x40 ;        // Set P1_2 to pull up 
27  }
 28  
29  / * ==== ================= D4 light flashing function ====================== * / 
30  void D4_Flicker ()
 31  {
 32    D4 = 1 ;
 33    Delay ( 60000 );
 34    D4 = 0 ;
 35    Delay ( 60000 );
 36  }
 37  
38 / * ===================== D5D6 light flashing function ====================== * / 
39  void D5D6_Flicker ()
 40  {
 41    D3 = 0 ;
 42    D4 = 0 ;
 43    D5 = 1 ;
 44    Delay ( 60000 );
 45    D5 = 0 ;
 46    Delay ( 60000 );
 47    D6 = 1 ;
 48    Delay ( 60000 ) ;
 49    D6 = 0 ;
 50    Delay ( 60000 );
51  }
 52  
53  / * ======================= Key scan function ================== ======= * / 
54  void Scan_Keys ()
 55  {
 56    if (SW1 == 0 )             // SW1 button signal 
57  found 57   {
 58      Delay ( 100 );            // Delay for a moment, debounce 
59      if (SW1 == 0 )           // Confirm as SW1 key signal 
60      {
 61        if (stat == 0 )
 62        {
 63          stat =1 ;
 64        }
 65         else  if (stat == 1 )   // Repeat 
66        {
 67          stat = 2 ;
 68        }
 69        else  if (stat == 2 )
 70        {
 71          stat = 1 ;
 72        }
 73        
74      }
 75    }       
 76  }
 77  
78  / * ========================== Main function ================== ========== * / 
79 void main ()
 80  {
 81    Init_Port ();             // Port initialization 
82    while ( 1 )
 83    {
 84      Scan_Keys ();           // Key scan 
85      switch (stat)
 86      {
 87        case  0 :              // Power on state, D4 ​​flashes 
88          D4_Flicker ();     
 89        break ;
 90        case  1 :              // Run status 1: D5 and D6 flash 
91          D5D6_Flicker ();
 92        break;
 93        case  2 :              // Run state 2: D5 and D6 are off 
94          D5 = 0 ;
 95          D6 = 0 ;
 96        break ;
 97      }
 98    }
 99 }

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