SCVD Event State

This example project shows how to display state information with the Event Recorder. The application itself implements a event_state thread that is started with two instances. The event state thread itself makes state transitions that are recorded.

Source code of the event state thread (from MyEventComponent.c)

void event_state (void *argument) {
  unsigned int i, h, name;
  
  name = (unsigned int) argument;
  h = name + 0x10000000;
  
  osDelay(100);
  EvrMyC1_Create (h, name);
  for (i=0; i < 2; i++)  {
    osDelay(100);
    EvrMyC1_Active (h);
    osDelay(100);
    EvrMyC1_Waiting (h);
    osDelay(100);
    EvrMyC1_Idle (h);
    osDelay(100);
  }
  
  EvrMyC1_Clear (h);
  osDelay(100);
  EvrMyC1_Delete (h);
  :
}

Start of the event state thread (from main.c)

char *name1 = "MyName1";
char *name2 = "MyName2";
 
osThreadId_t event_state1_id;
osThreadId_t event_state2_id;
 
int main (void) {
 
  EventRecorderInitialize (EventRecordAll, 1);  // initialize and start Event Recorder
 
  osKernelInitialize();                         // initialize CMSIS-RTOS
  event_state1_id = osThreadNew(event_state, name1 /* "Instance 1" */, NULL);
  event_state2_id = osThreadNew(event_state, name2 /* "Instance 2" */, NULL);
  osKernelStart ();
}

The application itself uses the MyEventComponent.scvd file to describe the state. Refer to the element state for more information.

Build and run

1. Open the project "SCVD Event State" from Pack Installer (search for uVision Simulator in the Boards tab).
2. Compile and run the application.
3. Open the windows View - Analysis Windows - Event Recorder and View - Analysis Windows - System Analyzer to verify the output.

System Analyzer with event state information

Event Recorder with event state information