NRF51 with mbed OS (5) and RawSerial test

Revision:
0:08d373203e2e
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Mon Jan 23 09:46:18 2017 +0000
@@ -0,0 +1,21 @@
+#include "mbed.h"
+
+DigitalOut led1(LED1);
+DigitalOut led2(LED2);
+
+RawSerial pc(USBTX, USBRX);
+
+void callback() {
+    // Note: you need to actually read from the serial to clear the RX interrupt
+    printf("%c\n", pc.getc());
+    led2 = !led2;
+}
+
+int main() {
+    pc.attach(&callback);
+
+    while (1) {
+        led1 = !led1;
+        wait(0.5);
+    }
+}
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