.. SPDX-License-Identifier: CC-BY-SA-4.0 .. Copyright (C) 1989, 2011 On-Line Applications Research Corporation (OAR) Example Application ******************* .. code-block:: c :linenos: /* * This file contains an example of a simple RTEMS * application. It instantiates the RTEMS Configuration * Information using confdef.h and contains two tasks: * a user initialization task and a simple task. */ #include rtems_task user_application(rtems_task_argument argument); rtems_task init_task( rtems_task_argument ignored ) { rtems_id tid; rtems_status_code status; rtems_name name; name = rtems_build_name( 'A', 'P', 'P', '1' ) status = rtems_task_create( name, 1, RTEMS_MINIMUM_STACK_SIZE, RTEMS_NO_PREEMPT, RTEMS_FLOATING_POINT, &tid ); if ( status != RTEMS_SUCCESSFUL ) { printf( "rtems_task_create failed with status of %d.\n", status ); exit( 1 ); } status = rtems_task_start( tid, user_application, 0 ); if ( status != RTEMS_SUCCESSFUL ) { printf( "rtems_task_start failed with status of %d.\n", status ); exit( 1 ); } status = rtems_task_delete( SELF ); /* should not return */ printf( "rtems_task_delete returned with status of %d.\n", status ); exit( 1 ); } rtems_task user_application(rtems_task_argument argument) { /* application specific initialization goes here */ while ( 1 ) { /* infinite loop */ /* APPLICATION CODE GOES HERE * * This code will typically include at least one * directive which causes the calling task to * give up the processor. */ } } /* The Console Driver supplies Standard I/O. */ #define CONFIGURE_APPLICATION_NEEDS_CONSOLE_DRIVER /* The Clock Driver supplies the clock tick. */ #define CONFIGURE_APPLICATION_NEEDS_CLOCK_DRIVER #define CONFIGURE_MAXIMUM_TASKS 2 #define CONFIGURE_INIT_TASK_NAME rtems_build_name( 'E', 'X', 'A', 'M' ) #define CONFIGURE_RTEMS_INIT_TASKS_TABLE #define CONFIGURE_INIT #include