Additional RawSerial example

Revision:
0:3b040f367dd8
Child:
2:4ab47f33a1ae
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Thu Jan 19 14:24:04 2017 -0600
@@ -0,0 +1,21 @@
+#include "mbed.h"
+
+DigitalOut led1(LED1);
+DigitalOut led2(LED2);
+
+Serial pc(USBTX, USBRX);
+
+void callback_ex() {
+    // 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_ex);
+    
+    while (1) {
+        led1 = !led1;
+        wait(0.5);
+    }
+}