Add FreeRTOS example.

Author: h2zero

cores/nRF5/rtos.h

@@ -20,6 +20,11 @@
 #define NABLERTOS_H
 
 #include <stdint.h>
+#include "freertos/FreeRTOS.h"
+#include "freertos/task.h"
+#include "freertos/timers.h"
+#include "freertos/queue.h"
+#include "freertos/semphr.h"
 
 class nableRtos {
 public:

cores/nRF5/wiring_digital.h

@@ -64,7 +64,9 @@ extern void digitalWrite( uint32_t dwPin, uint32_t dwVal ) ;
  */
 extern int digitalRead( uint32_t ulPin ) ;
 
-void ledOff(uint32_t pin);
+extern void ledOff(uint32_t pin);
+
+extern void digitalToggle( uint32_t ulPin );
 
 #ifdef __cplusplus
 }

libraries/n-able/examples/FreeRTOS/FreeRTOS.ino

@@ -0,0 +1,45 @@
+/*
+ * FreeRTOS task demo
+ * Shows how to blink an LED in it's own task.
+ *
+ * Note the use of the build_opt.h file to reduce the stack size of the main task.
+ * Since the loop is empty the main task stack does not need as much stack space.
+ */
+
+#ifndef LED_BUILTIN
+#define LED_BUILTIN 9
+#endif
+
+void BlinkTask( void *pvParameters );
+
+void setup() {
+    Serial.begin(115200);
+
+    xTaskCreate(
+    BlinkTask,  // The task function to run
+    "blnk",     // name of the task
+    128,        // Size of the task stack in words (32 bit)
+    NULL,       // Pointer to data to pass to the task function or NULL.
+    2,          // Priority, with 3 (configMAX_PRIORITIES - 1) being the highest, and 0 being the lowest.
+    NULL);      // Pointer to a TaskHandle_t variable to store the task handle, or NULL.
+
+  // The task is started immediately by the call to xTaskCreate.
+}
+
+void loop() {
+    // Empty, we are using our own task.
+}
+
+// This is our blink task.
+void BlinkTask(void *pvParameters) {
+    (void) pvParameters;
+
+    // initialize digital LED_BUILTIN as an output.
+    pinMode(LED_BUILTIN, OUTPUT);
+
+    for (;;) { // A Task shall never return or exit.
+        digitalToggle(LED_BUILTIN);
+        Serial.printf("Free heap: %u\n", RTOS.getFreeHeap());
+        delay(500);
+    }
+}

libraries/n-able/examples/FreeRTOS/build_opt.h

@@ -0,0 +1 @@
+'-DCONFIG_MAIN_TASK_STACK_SIZE=256'

libraries/n-able/library.properties

@@ -0,0 +1,9 @@
+name=n-able
+version=1.0.0
+author=h2zero
+maintainer=h2zero <[email protected]>
+sentence=n-able examples
+paragraph=
+category=Other
+url=
+architectures=arm-ble

libraries/n-able/src/dummy.h

@@ -0,0 +1,2 @@
+// This file is here only to silence warnings from Arduino IDE
+// Currently IDE doesn't support no-code libraries, like this collection of example sketches.