Diff: main.cpp

Revision:

13:87f9e63b2cfa

Parent:

12:b436e51e86a8

diff -r b436e51e86a8 -r 87f9e63b2cfa main.cpp
--- a/main.cpp	Mon Oct 01 11:21:17 2018 +0000
+++ b/main.cpp	Mon Oct 08 07:53:17 2018 +0000
@@ -3,43 +3,52 @@
 #define USE_I2C_2V8
 
 DigitalOut myled(P0_8); // 7=rot, 8=grün, 9=blau
-DigitalIn sw_o(P0_12);
+InterruptIn sw_o(P0_12);
 InterruptIn sw_b(P0_13);
 InterruptIn sw_g(P0_14);
+Timer t1;  // ein (globaler) Timer für alle Tasten
 
 I2C i2c_disp(P0_5, P0_4); //  SDA, SCL auf LPC11U24
 SB1602E lcd(i2c_disp);
 
-int count_o, count_b, count_g = 0;
+int count_o = 0, count_b = 0, count_g = 0;
+int lastMS_o = 0, lastMS_b = 0, lastMS_g = 0;  // Timer-Werte beim letzten Interrupt in [ms]
 
-void blue(){
-    count_b++;
-    }
-void green() {
-    count_g++;
-    }
+void incrementO() {
+    //t1.start();  // startet beim ersten Aufruf den Timer, bei weiteren Aufrufen passiert nichts (Timer läuft weiter)
+    
+    if (t1.read_ms() - lastMS_o > 10) {  // ist die Differenz zwischen aktueller Zeit und letztem Aufruf > 10ms ...
+        count_o++;                       // ... dann inkrementiere die Zählervariable
+    }  
+    lastMS_o = t1.read_ms();  // speichert den aktuellen Timer-Wert (für den nächsten Aufruf/Taster-Interrupt)
+}
 
-int main()
-{
-    sw_o.mode(PullUp);
-    sw_b.mode(PullUp);
-    sw_g.mode(PullUp);
+void incrementB() {
+    t1.reset();
+    if (t1.read_ms() - lastMS_b > 10) count_b++;   
+    lastMS_b = t1.read_ms();
+}
 
-    sw_b.fall(&blue);
-    sw_g.fall(&green);
-    wait(0.2);
+void incrementG() {
+    if (t1.read_ms() - lastMS_g > 10) count_g++; 
+    lastMS_g = t1.read_ms();
+}
+
+int main() {    
+    sw_o.mode(PullUp);
+    sw_g.mode(PullUp);
+    sw_b.mode(PullUp);
     
-    int sw_o_old = 0;
-    int sw_o_new;
+    sw_o.fall(&incrementO);
+    sw_b.fall(&incrementB);
+    sw_g.fall(&incrementG);
     
     lcd.printf(0, "Red Blue Green\r");    //  Parameter von printf auf LCD: Zeilennummer (0 or 1), string
+    
+    t1.start();
+
     while(1) {
-        sw_o_new = sw_o;
-        if ((sw_o_new==0) && (sw_o_old==1)) count_o++;  // fallende Flanke: old=1 & new=0
-        sw_o_old = sw_o_new;
-        lcd.printf(1,1, "%d   %d   %d", count_o, count_b, count_g);
-
         myled = !myled;
-
+        lcd.printf(1, 1, "%d   %d   %d", count_o, count_b, count_g);
     }
 }
\ No newline at end of file