RTOS semaphore Example Program

This program explains the basic step to signaling a semaphore in RTOS


#include "main.h"

#include <rtos.h>                                 // add rtos header file here

#define TASK1  TCBP(1)                      /* task #1 */

#define TASK2  TCBP(2)                      /*task  #2 */

#define TASK3  TCBP(3)                        /*task #3 */

#define  priority 5                                        /* task priorities1*/

#define priority 10                                           /* task priorities 2*/

#define priority 2                                             /*task priorities3*/

#define semaphore OSECBP(1) /* binSem
#1 */


unsigned int counter;

void Task1( void )
{
while (1) {
 {
OSSignalBinSem(semsphore);
}
task-switch();
}
}

void Task2( void )
{
while (1) {

OS_WaitBinSem(semaphore);


}
}
void Task3( void )
{

while (1) {
xxxxxxxxxxxx;
}
}

void main( void )
{
Init();

OSInit();

OSCreateTask(Task1,TCB,priority );

OSCreateTask(Task2,TCB,priority );

OSCreateTask(Task3,TCB,priority );

OSCreateBinSem(semaphore, 0);

counter = 0;

enable_interrupts();

while (1)
{

OSSched();
}
}
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