Subversion Repositories svnkaklik

Rev

Details | Last modification | View Log

Rev Author Line No. Line
6 kaklik 1 
//#DEFINE  PL             PIN_B3              // ovladani klavesnice
2 
//#DEFINE  STROBE_LED     PIN_C0
3 
//#DEFINE  STROBE_KL      PIN_C1
4 
//#DEFINE  DATA_OUT       PIN_C2
5 
//#DEFINE  CP             PIN_C3
6 
//#DEFINE  DATA_IN        PIN_C4
7 
 
8 
#DEFINE  znak_0     14
9 
#DEFINE  znak_1     10
10 
#DEFINE  znak_2     11
11 
#DEFINE  znak_3     12
12 
#DEFINE  znak_4     20
13 
#DEFINE  znak_5     21
14 
#DEFINE  znak_6     22
15 
#DEFINE  znak_7     04
16 
#DEFINE  znak_8     05
17 
#DEFINE  znak_9     06
18 
#DEFINE  znak_R     15
19 
#DEFINE  znak_F     16
20 
#DEFINE  znak_C     27
21 
#DEFINE  nic        80
22 
 
23 
 
24 
void KL_init()
25 
{
26 
int8 i;
27 
   output_high(STROBE_KL);
28 
   output_high(STROBE_LED);
29 
 
30 
   for (i=0;i<=7;i++)
31 
   {
32 
      output_low(DATA_IN);
33 
      output_high(CP);
34 
      output_low(CP);
35 
   }
36 
   output_low(STROBE_KL);
37 
   output_low(STROBE_LED);
38 
   output_high(CP);
39 
   output_high(PL);
40 
}
41 
 
42 
void KL_CP(j)
43 
{
44 
int8 i;
45 
   for (i=0;i<=j;i++)
46 
   {
47 
      output_high(CP);
48 
      output_low(CP);
49 
   }
50 
}
51 
 
52 
void LED(int8 LED)      //rosviti LED 1-7
53 
{
54 
int i;
55 
   output_low(CP);
56 
   output_low(STROBE_LED);
57 
   for (i=0;i<=7;i++)
58 
   {
59 
      output_bit(DATA_IN,bit_test(LED,i));
60 
      output_high(CP);
61 
      output_low(CP);
62 
   };
63 
   output_high(STROBE_LED);
64 
   output_low(STROBE_LED);
65 
}
66 
 
67 
int8 klavesa()          //vrati cislo klavesy
68 
{
69 
   int8 i;
70 
   int8 sloupec;
71 
 
72 
   for(sloupec=0; sloupec<=7; sloupec++)
73 
   {
74 
      output_low(STROBE_KL);
75 
      output_low(DATA_IN);
76 
      for (i=0;i<=7;i++)
77 
      {                                   //nulovani sloupcu
78 
        output_high(CP);
79 
        output_low(CP);
80 
      }
81 
 
82 
      output_high(DATA_IN);
83 
      output_high(CP);                    //zavedeni 1 do registru sloupcu
84 
      output_low(CP);
85 
 
86 
      output_low(DATA_IN);
87 
      for (i=0;i<sloupec;i++)            //nastaveni sloupce
88 
      {
89 
        output_high(CP);
90 
        output_low(CP);
91 
      }
92 
 
93 
      output_high(STROBE_KL);
94 
      output_low(PL);
95 
      output_high(PL);
96 
 
97 
      for (i=0;i<5;i++)                  //posunuti cteciho registru
98 
      {
99 
        output_high(CP);
100 
        output_low(CP);
101 
      }
102 
 
103 
      if (1==input(DATA_OUT)) return(sloupec);           // pokud je 0. radek
104 
      output_high(CP);
105 
      output_low(CP);
106 
      if (1==input(DATA_OUT)) return(0b1000 | sloupec);  // pokud je 1. radek
107 
      output_high(CP);
108 
      output_low(CP);
109 
      if (1==input(DATA_OUT)) return(0b10000 | sloupec); // pokud je 2. radek
110 
 
111 
 
112 
   }
113 
   return(0x80);  // nastavy nejvissi bit, ze neni nic zmacknuto
114 
}
115 
 
116 
boolean read_KL(char *klv)
117 
{
118 
   const char prev_tabulka[24]={'i','z','m','u','7','8','9','.','1','2','3','b','0','r','f','k','4','5','6','s',' ',' ','t','c'};
119 
 
120 
   *klv = klavesa();
121 
   if (0x80==*klv) return(false);
122 
   else
123 
   {
124 
      *klv = prev_tabulka[*klv];
125 
      return(true);
126 
   }
127 
}
128