task3_start.c

一个简单的小型操作系统

/*****************************************************************************
 *
 * Module       : task3_start.c
 * Description  : this application provides the SLOS command line.
 * OS           : SLOS 0.09	
 * Platform     : e7t
 * History      :
 *
 * November 5th 2001 - Andrew N. Sloss
 * - created a simple command line calling task.
 *
 *****************************************************************************/

/*****************************************************************************
 * DATATYPE
 *****************************************************************************/

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

#include "../core/all.h"
#include "../core/cli_shell.h"

/*****************************************************************************
 * GLOBAL
 *****************************************************************************/

/* none... */

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

/* -- banner ------------------------------------------------------------------
 *
 * Description   : prints out the SLOS standard banner
 *
 * Parameters    : none...
 * Return        : none...
 * Notes         :
 *
 */

void banner (void) 
{
printToHost ("\n\r");
printToHost ("\n\rSimple Little OS (0.09)\n\r");
printToHost ("- initialized ...... OK\n\r");
printToHost ("- running on ....... e7t \n\r");
printToHost ("\n\r");
printToHost ("\n\r");
}


/* -- C_EntryTask3 ------------------------------------------------------------
 *
 * Description : C entry point into application task3
 * 
 * Parameters  : none...
 * Return      : none...
 * Other       :
 *
 * This routine never terminates
 *
 */

void C_EntryTask3(void) 
{
  volatile int delay;

 /* -----------------------------------------------------------
  *
  * Open file stream
  *
  *
  * -----------------------------------------------------------
  */

 if(openHost (COM0)==TRUE)
 {
 banner ();
 shell  ();
 }

/* -----------------------------------------------------------
 *
 * Closing the HostPort should *never* occur
 *
 * -----------------------------------------------------------
 */

closeHost ();

  while (1) 
  {
  delay=0xbeef003;
  }
}