taska.c

来自「AT91所有开发板的资料 AT91所有开发板的资料」· C语言 代码 · 共 87 行

/**************************************************************
 *
 * ARM Strategic Support Group
 *
 **************************************************************/

/**************************************************************
 *
 * Module		: TaskA
 * Description	: Shell TASK routine that toggles the LED2
 * Tool Chain	: ARM Developers Suite 1.0
 * Platform		: Evaluator7T
 * History		:
 *
 *			2000-03-27 Andrew N. Sloss
 *			- ported to Evalautor7T
 *			- added header and changed the delay time
 *
 **************************************************************/

/**************************************************************
 * IMPORT
 **************************************************************/

#include "led.h"
#include "mutex.h"

/**************************************************************
 * MACROS
 **************************************************************/
 
// none... 
 
/**************************************************************
 * DATATYPES
 **************************************************************/

// none...

/**************************************************************
 * ROUTINES
 **************************************************************/


/* -- taska_process -------------------------------------------
 *
 * Description 	: task A 
 * 
 * Parameters	: none...
 * Return		: none...
 * Other		:
 *
 * 		This task executes continuously
 *
 */

void taska_process (void)
{
int delay;

	while (1) {
	aWAIT;			// lock critical section ...

		LED_2_ON;

		// ................................
		// Critical Code Section
		// ................................

		// dummy time delay...
		for (delay=0; delay<0x20ffff; delay++) {} 

	aSIGNAL;

		LED_2_OFF;
	
		// dummy time delay...
		for (delay=0; delay<0x20ffff; delay++) {} 
	}
}

/************************************************************
 * End OF taska.c
 ************************************************************/