Diff: main.cpp

Revision:

0:caa17e8c0bc3

diff -r 000000000000 -r caa17e8c0bc3 main.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Thu Nov 15 18:05:48 2018 +0000
@@ -0,0 +1,43 @@
+// switch blue LEDs LED1 .. LED4 with external interrupt functionality
+/* 
+3 classes
+Timeout - Call a function after a specified delay
+Ticker - Repeatedly call a function
+Timer - Create, start, stop and read a timer
+*/
+
+#include "mbed.h"
+
+Timeout toFlipper;
+DigitalOut doLed1(LED1);
+DigitalOut doLed2(LED2);
+Ticker tickBlinker; 
+DigitalOut doLed3(LED3);
+Timer tMyTimer;
+Serial pc(USBTX, USBRX); // tx, rx
+
+// functions 
+void flip() {
+    doLed1 = !doLed1;
+}
+
+void blink() {
+    doLed3 = !doLed3;
+}
+ 
+int main() {
+    doLed2 = 1;
+    toFlipper.attach(&flip, 2.0);     // setup flipper to call flip after 2 seconds
+    tickBlinker.attach(&blink, 0.5);    // setup blinker to call blink avery 500 msec
+ 
+    // spin in a main loop. flipper will interrupt it to call flip
+    while(1) {
+        tMyTimer.reset();
+        tMyTimer.start();
+        pc.printf("Hello Timer-World!   ");
+        doLed1 = !doLed1;
+        wait(1.0);
+        tMyTimer.stop();
+        pc.printf("The time taken was %f seconds\r", tMyTimer.read());    
+    }
+}
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