Initial commit

external/CMSIS_5/CMSIS/RTOS2/RTX/Template/Events.c

@@ -0,0 +1,51 @@
+#include "cmsis_os2.h"                          // CMSIS RTOS header file
+ 
+/*----------------------------------------------------------------------------
+ *  Event Flags creation & usage
+ *---------------------------------------------------------------------------*/
+ 
+#define FLAGS_MSK1 0x00000001U
+ 
+osEventFlagsId_t evt_id;                        // event flasg id
+ 
+osThreadId_t tid_Thread_EventSender;            // thread id 1
+osThreadId_t tid_Thread_EventReceiver;          // thread id 2
+ 
+void Thread_EventSender   (void *argument);     // thread function 1
+void Thread_EventReceiver (void *argument);     // thread function 2
+ 
+int Init_Events (void) {
+ 
+  evt_id = osEventFlagsNew(NULL);
+  if (evt_id == NULL) {
+    ; // Event Flags object not created, handle failure
+  }
+ 
+  tid_Thread_EventSender = osThreadNew(Thread_EventSender, NULL, NULL);
+  if (tid_Thread_EventSender == NULL) {
+    return(-1);
+  }
+  tid_Thread_EventReceiver = osThreadNew(Thread_EventReceiver, NULL, NULL);
+  if (tid_Thread_EventReceiver == NULL) {
+    return(-1);
+  }
+
+  return(0);
+}
+ 
+void Thread_EventSender (void *argument) {
+ 
+  while (1) {    
+    osEventFlagsSet(evt_id, FLAGS_MSK1);
+    osThreadYield();                            // suspend thread
+  }
+}
+ 
+void Thread_EventReceiver (void *argument) {
+  uint32_t flags;
+ 
+  while (1) {
+    flags = osEventFlagsWait(evt_id, FLAGS_MSK1, osFlagsWaitAny, osWaitForever);
+    //handle event
+  }
+}