Diff: main.cpp

Revision:

0:c7046f93144e

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Thu May 08 17:22:03 2014 +0000
@@ -0,0 +1,132 @@
+#include "mbed.h"
+ 
+Serial pc(USBTX, USBRX); // tx, rx
+ 
+DigitalIn cols[4] = { dp9, dp10, dp11, dp13 }; //kolone
+DigitalOut rows[4] = { dp2, dp1, dp28, dp6 }; //redovi
+ 
+ 
+char getValue()
+{
+    char c ('N');
+    for(int i = 0; i < 4; i++)
+    {
+        rows[i] = 0;
+    }
+    
+    rows[0] = 1;
+    
+    for(int i = 0; i < 4; i++)
+    {
+        if(cols[i] == 1)
+        switch(i)
+        {
+            case 0: 
+            c = '1';
+            break;
+            case 1:
+            c = '2';
+            break;
+            case 2:
+            c = '3';
+            break;
+            case 3:
+            c = 'A';
+            break;
+        }
+    }
+    rows[0] = 0;
+    rows[1] = 1;
+    
+        for(int i = 0; i < 4; i++)
+    {
+        if(cols[i] == 1)
+        switch(i)
+        {
+            case 0: 
+            c = '4';
+            break;
+            case 1:
+            c = '5';
+            break;
+            case 2:
+            c = '6';
+            break;
+            case 3:
+            c = 'B';
+            break;
+        }
+    }
+    
+    
+    rows[1] = 0;
+    rows[2] = 1;
+    
+    for(int i = 0; i < 4; i++)
+    {
+        if(cols[i] == 1)
+        switch(i)
+        {
+            case 0: 
+            c = '7';
+            break;
+            case 1:
+            c = '8';
+            break;
+              case 2:
+            c = '9';
+            break;
+            case 3:
+            c = 'C';
+            break;
+        }
+    }
+    
+    
+    rows[2] = 0;
+    rows[3] = 1;
+    
+        for(int i = 0; i < 4; i++)
+    {
+        if(cols[i] == 1)
+        switch(i)
+        {
+            case 0: 
+            c = '*';
+            break;
+            case 1:
+            c = '0';
+            break;
+            case 2:
+            c = '#';
+            break;
+            case 3:
+            c = 'D';
+            break;
+        }
+    }
+    
+    rows[3] = 0;
+    return c;
+}
+ 
+ 
+    
+int main() {
+    char c = 'N';
+    char c1;
+ 
+    while(1) {
+    c1 = getValue();
+ 
+    if ( c1 != 'N' && c == 'N')
+    {
+        if (c1 == '*')
+        pc.putc ('\n'); 
+        else pc.putc(c1);
+                   
+    }
+    c = c1;
+    }
+}
+     
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