Christian Weiß
/
Btn_RunLight
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Revision 0:b768d98915e0, committed 2018-11-15
- Comitter:
- Wizo
- Date:
- Thu Nov 15 17:52:54 2018 +0000
- Commit message:
- Btn_RunLight
Changed in this revision
| main.cpp | Show annotated file Show diff for this revision Revisions of this file |
| mbed.bld | Show annotated file Show diff for this revision Revisions of this file |
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Thu Nov 15 17:52:54 2018 +0000
@@ -0,0 +1,53 @@
+#include "mbed.h"
+
+// Lauflicht welches sich bei jedem Btn-Click um einen Schritt weiter bewegt
+// Das ist die Polling Lösung
+
+
+// LSB MSB
+// 2^0 2^1 2^2 2^11
+BusOut lb(P1_13,P1_12,P1_7,P1_6,P1_4,P1_3,P1_1,P1_0,LED4,LED3,LED2,LED1);
+// D20 D19 D18 D17 D16 D15 D14 D13 D4 D3 D2 D1
+
+DigitalIn sw4(P1_16);
+
+int prevSw4 = 0; // Schalterzustand so wie er bei der letzten Abfrage war
+
+void OneRunLightStep(); // einen Schritt eines LL ausführen
+
+// CheckButton() liefert nur dann 1 wenn
+// am Button eine Flanke erkannt wurde
+int CheckButton();
+
+
+int main()
+{
+ lb = 1;
+
+ while(1) {
+ if(CheckButton())
+ OneRunLightStep();
+
+ }
+
+}
+
+int CheckButton()
+{
+ int ret = 0;
+ if(sw4 == 1 && prevSw4 == 0)
+ ret = 1;
+ else
+ ret = 0;
+ prevSw4 = sw4; // den alten Schalterzustand merken
+ return ret;
+}
+
+
+void OneRunLightStep()
+{
+ if(lb == 0)
+ lb = 1;
+ else
+ lb = lb << 1;
+}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Thu Nov 15 17:52:54 2018 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/7130f322cb7e \ No newline at end of file