FreeRTOS: Task monitoring.

source/shoh/freertos/FreeRTOSConfig.h

@@ -91,7 +91,8 @@
 #define configUSE_MALLOC_FAILED_HOOK	1
 #define configUSE_APPLICATION_TASK_TAG	0
 #define configUSE_COUNTING_SEMAPHORES	1
-#define configGENERATE_RUN_TIME_STATS	0
+#define configGENERATE_RUN_TIME_STATS	1
+#define configRECORD_STACK_HIGH_ADDRESS 1
 #define configUSE_TICKLESS_IDLE 1 
 
 
@@ -119,6 +120,16 @@ to exclude the API function. */
 #define INCLUDE_vTaskDelay				1
 #define INCLUDE_xTaskGetCurrentTaskHandle 1
 
+/* NOTE: we need to provide implementation of vConfigureTimerForRunTimeStats()
+ * It is called to set up high resolution timer that is needed for accurate runtime
+ * measurement. I assume that we use LPC_SCT1 in unified mode so this function
+ * must set up LPC_SCT1.
+ */
+void vConfigureTimerForRunTimeStats(void);
+#define portCONFIGURE_TIMER_FOR_RUN_TIME_STATS() vConfigureTimerForRunTimeStats()
+/* The value is read directly from the counter register for efficiency and low overhead. */
+#define portGET_RUN_TIME_COUNTER_VALUE() LPC_SCT1->COUNT_U
+
 /* Cortex-M specific definitions. */
 #ifdef __NVIC_PRIO_BITS
 	/* __BVIC_PRIO_BITS will be specified when CMSIS is being used. */

source/shoh/src/main.cpp

@@ -29,3 +29,16 @@ int main(void)
 
   return 1;
 }
+
+extern "C"
+{
+  void
+  vConfigureTimerForRunTimeStats (void)
+  {
+    Chip_SCT_Init (LPC_SCT1);
+    LPC_SCT1->CONFIG = SCT_CONFIG_32BIT_COUNTER;
+    LPC_SCT1->CTRL_U = SCT_CTRL_PRE_L (255)
+                            | SCT_CTRL_CLRCTR_L; // set prescaler to 256 (255 +
+                                                 // 1), and start timer
+  }
+}