diff options
author | Amar Takhar <amar@rtems.org> | 2016-01-17 19:19:43 -0500 |
---|---|---|
committer | Amar Takhar <verm@darkbeer.org> | 2016-05-02 20:51:24 -0400 |
commit | fd6dc8c8de4dbc7ecf8a82a597cd5b43476fc8e3 (patch) | |
tree | 50fdc708f26d94fbdc844602ad7c212588b7904e /c_user/example_application.rst | |
parent | Fix markup. (diff) | |
download | rtems-docs-fd6dc8c8de4dbc7ecf8a82a597cd5b43476fc8e3.tar.bz2 |
Split document into seperate files by section.
Diffstat (limited to 'c_user/example_application.rst')
-rw-r--r-- | c_user/example_application.rst | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/c_user/example_application.rst b/c_user/example_application.rst new file mode 100644 index 0000000..dcec917 --- /dev/null +++ b/c_user/example_application.rst @@ -0,0 +1,66 @@ +Example Application +################### + +.. code:: c + + /* + * 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.h> + 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_STATUS_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_STATUS_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 <rtems/confdefs.h> + +.. COMMENT: COPYRIGHT (c) 1989-2011. + +.. COMMENT: On-Line Applications Research Corporation (OAR). + +.. COMMENT: All rights reserved. + |