Diff: main.cpp

Revision:

0:e64372861297

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Fri Nov 22 14:07:10 2013 +0000
@@ -0,0 +1,93 @@
+#include "mbed.h"
+
+DigitalIn button(D0);
+
+DigitalOut segA(D4);
+DigitalOut segB(D7);
+DigitalOut segC(D8);
+DigitalOut segD(D10);
+DigitalOut segE(D11);
+DigitalOut segF(D12);
+DigitalOut segG(D13);
+DigitalOut segDP(D9);
+
+static void show(int val) {
+    // turn off all segments
+    segA = segB = segC = segD = segE = segF = segG = 1;
+    
+    // turn on segments depending on what to show
+    switch (val) {
+        case 0: segA = segB = segC = segD = segE = segF =        0; break;
+        case 1:        segB = segC =                             0; break;
+        case 2: segA = segB =        segD = segE =        segG = 0; break;
+        case 3: segA = segB = segC = segD =               segG = 0; break;
+        case 4:        segB = segC =               segF = segG = 0; break;
+        case 5: segA =        segC = segD =        segF = segG = 0; break;
+        case 6: segA =        segC = segD = segE = segF = segG = 0; break;
+        case 7: segA = segB = segC =                             0; break;
+        case 8: segA = segB = segC = segD = segE = segF = segG = 0; break;
+        case 9: segA = segB = segC = segD =        segF = segG = 0; break;
+        
+        case 'A': segA = 0; break;
+        case 'B': segB = 0; break;
+        case 'C': segC = 0; break;
+        case 'D': segD = 0; break;
+        case 'E': segE = 0; break;
+        case 'F': segF = 0; break;
+        case 'G': segG = 0; break;
+    }
+}
+
+static void experiment2_alt1()
+{
+    // Enter forever loop
+    while(1) {
+        for (int i = 0; i < 10; i++) {
+            // Delay a specified period of time or wait for push-button to be pressed
+            wait(0.3);
+            
+            show(i);
+        }
+    }
+}
+
+static void experiment2_alt2()
+{
+    // Enable button
+    button.mode(PullUp);
+ 
+    // Enter forever loop
+    while(1) {
+        for (int i = 0; i < 10; i++) {
+            // Delay a specified period of time or wait for push-button to be pressed
+            while(button);
+            while(!button);
+            
+            show(i);
+        }
+    }
+}
+
+static void experiment2_alt3()
+{
+    // Enter forever loop
+    while(1) {
+        for (int i = 'A'; i < 'G'; i++) {
+            // Delay a specified period of time or wait for push-button to be pressed
+            wait(0.3);
+            
+            show(i);
+        }
+    }
+}
+
+
+int main()
+{
+    // turn off all segments
+    segA = segB = segC = segD = segE = segF = segG = segDP = 1;
+    
+    //experiment2_alt1(); // Automatic counting
+    //experiment2_alt2(); // Push button advances counting
+    experiment2_alt3(); // Automatic running one
+}
\ No newline at end of file