Erik - / LPC812_Sleep_HelloWorld

Example of using sleep/deepsleep with the LPC812

Dependencies:   mbed-src WakeUp

After some initial code the device goes into powerdown (deepsleep), or sleep mode. By creating a rising edge on pin D0 (I just use a cable to connect it to Vdd) it will leave sleep, blink blue, and go to sleep again. Aditionally after 10 seconds of sleep it will blink green using the low-power wake-up timer.

Brownout detection and Watchdog timer are disabled since in deepsleep they are the primary power consumers.

Diff: main.cpp

Revision:
1:85ca0ec1e66f
Parent:
0:273b2570ead8
--- a/main.cpp	Wed Nov 20 21:26:47 2013 +0000
+++ b/main.cpp	Sat Nov 23 11:36:34 2013 +0000
@@ -1,27 +1,42 @@
 #include "mbed.h"
+#include "WakeUp.h"
 
-DigitalOut myled(LED1);
+DigitalOut led1(LED1);
+DigitalOut led2(LED2);
 InterruptIn inter(D0);
 
 
-void interirq(void) {
+void interirq(void)
+{
+    led1 = 0;
+    wait(0.2);
+    led1 = 1;
+}
 
+void wakeirq(void)
+{
+    led2 = 0;
+    wait(0.2);
+    led2 = 1;
 }
 
-int main() {
+int main()
+{
+    led1 = 1;
+    led2 = 1;
     inter.rise(interirq);
-    
-    //Disable BOD and WDT:
+    WakeUp::calibrate();
+    WakeUp::attach(wakeirq);
+
+
+    //Disable BOD and WDT (only done to get nice low deepsleep power):
     LPC_SYSCON->PDRUNCFG |= (1<<3) | (1<<6);
-    
+ 
+    WakeUp::set(10);
     while(1) {
-        for (int i = 0; i<10; i++) {
-            myled = 0;
-            wait(0.2);
-            myled = 1;
-            wait(0.2);
-        }
         //sleep();
         deepsleep();
+        WakeUp::set(10);
     }
 }
+