[ECOS] Unable to put cyg_thread_delay

["Romil Shah" <rshah at slscorp dot com>]

 Sir,
   I have created an application with 3 threads ,and attached a  delay for
each of them the application is as follows,
static cyg_interrupt int1;

static cyg_handle_t int1_handle;
static cyg_sem_t   data_ready;


int thread_a_stack[ THREAD_A_STACK_SIZE ];
int thread_b_stack[ THREAD_B_STACK_SIZE ];
int thread_c_stack[ THREAD_C_STACK_SIZE ];

cyg_handle_t thread_a_handle;
cyg_handle_t thread_b_handle;
cyg_handle_t thread_c_handle;

cyg_thread thread_a_obj;
cyg_thread thread_b_obj;
cyg_thread thread_c_obj;

void thread_a(cyg_addrword_t index)
{

int A_FLAG = 0;

	 while(1)
	 {

	 delayfun(20);
	 diag_printf("\n *THREAD_A_EXECUTES*");
	 diag_printf("\n ");
	 disp7seg(A_FLAG++);
	 cyg_semaphore_post(&sem_get_data);
	 cyg_thread_delay(10);   /*   Program hang up*/
	 }
 }


 void thread_b(cyg_addrword_t index)
 {
	int B_FLAG = 0x00;
	while(1)
	{
			cyg_semaphore_wait(&sem_get_data);
			diag_printf("\n *THREAD_B_EXECUTES*");
			if(B_FLAG==0x00)
			   {
				  *led_pio = 0xff;
			   	   B_FLAG = 0xff;
			   }
			else
			  {
				  *led_pio = 0x00;
				  B_FLAG =0x00;
			  }
 cyg_thread_delay(10);

    }

}

void thread_c(cyg_addrword_t index)
{
	while(1)
	{
		cyg_semaphore_wait(&sem_get_data);
		delayfun(10);
		diag_printf("\n *THREAD_C_EXECUTES*");



	}
}

 void cyg_user_start(void)
 {

	cyg_semaphore_init(&data_ready,0);
	 int ipenable_status=0;
	 int i=0;
	cyg_semaphore_init(&sem_get_data,0);

 cyg_thread_create(
		 24,
		 thread_a,
		 0,
		 "Thread A",
		 &thread_a_stack,
		 THREAD_A_STACK_SIZE,
		 &thread_a_handle,
		 &thread_a_obj);

cyg_thread_create(
		22,
		thread_b,
		0,
		"Thread B",
		&thread_b_stack,
		THREAD_B_STACK_SIZE,
		&thread_b_handle,
		&thread_b_obj);

 cyg_thread_create(
		 23,
		 thread_c,
		 0,
		 "Thread C",
		 &thread_c_stack,
		 THREAD_C_STACK_SIZE,
		 &thread_c_handle,
		 &thread_c_obj);


		cyg_thread_resume(thread_a_handle);
		cyg_thread_resume(thread_b_handle);
		cyg_thread_resume(thread_c_handle);
 }


Program get hang up if delay is attached to the thread_a ,but if it is
commented and delay is attached to any other thread then program executes
perfectly.
SO what is the reason for this weired behaviour of cyg_thread_delay for
thread_a.


 Frm,
    Romil Shah.

_________________________________________________________________

                                                                                      
                        http://www.slscorp.com             
_________________________________________________________________

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