Erik -
Example of using sleep/deepsleep with the LPC812
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.
Revision 1:85ca0ec1e66f, committed 2013-11-23
- Comitter:
- Sissors
- Date:
- Sat Nov 23 11:36:34 2013 +0000
- Parent:
- 0:273b2570ead8
- Commit message:
- Added wakeup timer.
Changed in this revision
diff -r 273b2570ead8 -r 85ca0ec1e66f WakeUp.lib --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/WakeUp.lib Sat Nov 23 11:36:34 2013 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/Sissors/code/WakeUp/#fc439458a359
diff -r 273b2570ead8 -r 85ca0ec1e66f main.cpp
--- 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);
}
}
+
diff -r 273b2570ead8 -r 85ca0ec1e66f mbed-src.lib --- a/mbed-src.lib Wed Nov 20 21:26:47 2013 +0000 +++ b/mbed-src.lib Sat Nov 23 11:36:34 2013 +0000 @@ -1,1 +1,1 @@ -http://mbed.org/users/Sissors/code/mbed-src-LP81x-sleep/#42f26c765a05 +http://mbed.org/users/mbed_official/code/mbed-src/#a1af374b4197