Diff: WakeUp.h

Revision:

0:abaa4fd0c727

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/WakeUp.h	Thu Mar 12 09:27:30 2020 +0000
@@ -0,0 +1,57 @@
+/*
+
+    Original idea & program
+    https://os.mbed.com/users/Sissors/code/WakeUp/
+        by Erik
+ */
+
+/*
+ *  Modified only for STM CPU
+ *      by Kenji Arai / JH1PJL
+ *
+ *  http://www7b.biglobe.ne.jp/~kenjia/
+ *  http://mbed.org/users/kenjiArai/
+ *      Created:    September  21st, 2017
+ *      Revised:    March      12th, 2020
+ */
+
+#include "mbed.h"
+
+/**
+ * Class to make wake up a STM CPU from deepsleep using a low-power timer. 
+ *
+ * @code
+ * 
+ * #include "mbed.h"
+ * #include "WakeUp_STM.h"
+ * 
+ * DigitalOut myled(LED1);
+ * 
+ * int main() {
+ *     uint32_t loop_count = 1;
+ *     ThisThread::sleep_for(1000);
+ *     while(true) {
+ *         myled = !my_led;
+ *         if (++count > 4) {
+ *             WakeUp::standby_then_reset(30000);  // 30sec
+ *             while(true) {;} // never executing this line
+ *         }
+ *     }
+ * }
+ * @endcode
+ */
+class WakeUp
+{
+public:
+    /**
+    * Enter Standby mode then Reset
+    * @param ms required time in milliseconds
+    */
+    static void standby_then_reset(uint32_t ms);
+
+private:
+    static Callback<void()> callback;
+    static void irq_handler(void);
+    static void set_ms(uint32_t ms);
+    static float cycles_per_ms;
+};
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