/*----------------------------------------------------------------------------

  *      RL-ARM - RTX

  *----------------------------------------------------------------------------

  *      Name:    RTX_EX1.C

  *      Purpose: Your First RTX example program

  *----------------------------------------------------------------------------

  *

  * Copyright (c) 1999-2009 KEIL, 2009-2012 ARM Germany GmbH

  * All rights reserved.

  * Redistribution and use in source and binary forms, with or without

  * modification, are permitted provided that the following conditions are met:

  *  - Redistributions of source code must retain the above copyright

  *    notice, this list of conditions and the following disclaimer.

  *  - Redistributions in binary form must reproduce the above copyright

  *    notice, this list of conditions and the following disclaimer in the

  *    documentation and/or other materials provided with the distribution.

  *  - Neither the name of ARM  nor the names of its contributors may be used

  *    to endorse or promote products derived from this software without

  *    specific prior written permission.

  *

  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"

  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE

  * ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS AND CONTRIBUTORS BE

  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR

  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF

  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS

  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN

  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)

  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE

  * POSSIBILITY OF SUCH DAMAGE.

  *---------------------------------------------------------------------------*/

 #include "cmsis_os.h"

 /* Forward reference */

 void threadX (void const *argument);

 /* Thread IDs */

 osThreadId main_id;

 osThreadId threadX_id;

 /* Thread definitions */

 osThreadDef(threadX, osPriorityNormal, , );

 /*----------------------------------------------------------------------------

  *   Thread X

  *---------------------------------------------------------------------------*/

 void threadX (void const *argument) {

   for (;;) {

     /* Wait for completion of do-this */

     osSignalWait(0x0004, osWaitForever); /* do-that */

     /* Pause for 20 ms until signaling event to main thread */

     osDelay();

     /* Indicate to main thread completion of do-that */

     osSignalSet(main_id, 0x0004);

   }

 }

 /*----------------------------------------------------------------------------

  *   Main Thread

  *---------------------------------------------------------------------------*/

 int main (void) {

   /* Get main thread ID */

   main_id = osThreadGetId();

   /* Create thread X */

   threadX_id = osThreadCreate(osThread(threadX), NULL);

   for (;;) {    /* do-this */

     /* Indicate to thread X completion of do-this */

     osSignalSet(threadX_id, 0x0004);

     /* Wait for completion of do-that */

     osSignalWait(0x0004, osWaitForever);

     /* Wait now for 50 ms */

     osDelay();

   }

 }

 /*----------------------------------------------------------------------------

  * end of file

  *---------------------------------------------------------------------------*/