add software_timer example

Author: hathach

libraries/Bluefruit52Lib/examples/Hardware/hw_systick/hw_systick.ino

@@ -30,7 +30,7 @@ extern "C"
  */
 void SysTick_Handler(void)
 {
-  ledToggle(LED_BLUE);
+  ledToggle(LED_RED);
 }
 
 } // extern C

libraries/Bluefruit52Lib/examples/Hardware/software_timer/software_timer.ino

@@ -0,0 +1,58 @@
+/*********************************************************************
+ This is an example for our nRF52 based Bluefruit LE modules
+
+ Pick one up today in the adafruit shop!
+
+ Adafruit invests time and resources providing this open source code,
+ please support Adafruit and open-source hardware by purchasing
+ products from Adafruit!
+
+ MIT license, check LICENSE for more information
+ All text above, and the splash screen below must be included in
+ any redistribution
+*********************************************************************/
+#include <Arduino.h>
+
+/* SoftwareTimer is a helper class that uses FreeRTOS software timer
+ * to invoke callback. Its periodic timing is flexible as opposed to
+ * hardware timer and cannot be faster than rtos's tick which is configured
+ * at  ~1 ms interval.
+ *
+ * If you need an strict interval timing, or faster frequency, check out
+ * the hw_systick sketch example that use hardware systick timer.
+ *
+ * http://www.freertos.org/RTOS-software-timer.html
+ */
+SoftwareTimer blinkTimer;
+
+
+void setup()
+{
+  // Configure the timer with 1000 ms interval, with our callback
+  blinkTimer.begin(1000, blink_timer_callback);
+
+  // Start the timer
+  blinkTimer.start();
+}
+
+void loop()
+{
+  // do nothing here
+}
+
+
+/**
+ * Software Timer callback is invoked via a built-in FreeRTOS thread with
+ * minimal stack size. Therefore it should be as simple as possible. If
+ * a periodically heavy task is needed, please use Scheduler.startLoop() to
+ * create a dedicated task for it.
+ *
+ * More information http://www.freertos.org/RTOS-software-timer.html
+ */
+void blink_timer_callback(TimerHandle_t xTimerID)
+{
+  // freeRTOS timer ID, ignored if not used
+  (void) xTimerID;
+
+  digitalToggle(LED_RED);
+}

libraries/Bluefruit52Lib/library.properties

@@ -1,5 +1,5 @@
 name=Adafruit BLE Libraries for Bluefruit52
-version=0.8.4
+version=0.8.5
 author=Adafruit
 maintainer=Adafruit <[email protected]>
 sentence=Arduino library for nRF52-based Adafruit Bluefruit LE modules