disp_task.c

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/*C**************************************************************************
* NAME:         disp_task.c
*----------------------------------------------------------------------------
* Copyright (c) 2006 Atmel.
*----------------------------------------------------------------------------
* RELEASE:      C51 Sample      
* REVISION:     1.00     
*----------------------------------------------------------------------------
*
*****************************************************************************/
/*_____ I N C L U D E S ____________________________________________________*/

#include "system\reg51.h"
#include "system\compiler.h"
#include "system\config.h"
#include "driver\io_def.h"
#include "disp_task.h"                      /* displayer task definition */

#if CONF_DISPLAY == HT1621
#include "driver\ht1621_drv.h"              /* ht1621 driver definition */
#endif

/*_____ M A C R O S ________________________________________________________*/


/*_____ D E F I N I T I O N ________________________________________________*/

/*F**************************************************************************
* NAME: disp_task_init
*----------------------------------------------------------------------------
* PARAMS:
*
* return:
*----------------------------------------------------------------------------
* PURPOSE: 
*   Display task initialization
*----------------------------------------------------------------------------
* EXAMPLE:
*----------------------------------------------------------------------------
* NOTE:
*----------------------------------------------------------------------------
* REQUIREMENTS:
*****************************************************************************/
void disp_task_init (void)
{
	ht1621_init();
	HT1621_command(HT1621_COMBIAS);
	HT1621_command(HT1621_RC);
	HT1621_command(HT1621_TIMER);
	HT1621_command(HT1621_SYSEN);
	HT1621_command(HT1621_ON);
	
	glht1621_sec(45);	/* 防止出错,无意义的调用 */
	glht1621_min(20);	/* 防止出错,无意义的调用 */
	glht1621_TRACK(20);	/* 防止出错,无意义的调用 */
	glht1621_volume();	/* 防止出错,无意义的调用 */
	glht1621_rec();		/* 防止出错,无意义的调用 */
	glht1621_stop();	/* 防止出错,无意义的调用 */
	ht1621_cls();
#if disp_version == E_DispVer
	glht1621_TRACK(6);	/* 软件版本:年份 */
	glht1621_min(8);	/* 软件版本:月期 */
	glht1621_sec(4);	/* 软件版本:日份 */
#endif
	disp_state = DISP_INIT;
}

/*F**************************************************************************
* NAME: disp_task
*----------------------------------------------------------------------------
* PARAMS:
*
* return:
*----------------------------------------------------------------------------
* PURPOSE: 
*   Display task handling display of clock and scrolling of file name
*----------------------------------------------------------------------------
* EXAMPLE:
*----------------------------------------------------------------------------
* NOTE:
*----------------------------------------------------------------------------
* REQUIREMENTS:
*****************************************************************************/
void disp_task (void)
{
	switch (disp_state)
  	{

		case DISP_IDLE:  	break;
		case DISP_INIT:
		{
			ht1621_cls();
			disp_state = DISP_PRO;
			}
			break;

		case DISP_TICK0:	
		{
			if(disp_tick > DISP_LOOP){
			 	disp_state = DISP_PRO;
				disp_tick = 0;
				}
			}
			break;

		case DISP_PRO:
		{		
			if(!MPOWER){
				glht1621_POFF();
				}
			else {
				if(vol_flag){
					if(	vol_tick > VOLDISP_TIME) {
						vol_flag = Low;
						vol_tick = 0;
						}
						else glht1621_volume(); 
					}
				else{
					if(CDPOWER){					
						if(!DtsMen_flag) {
							dtsFM_DispFer(); 
							//dts_DispMem();
							}
							else {
								dts_DispMem();
								dtsFM_DispFer();
								}
						}
					}
				}
			disp_state = DISP_TICK0;
			break;

			}
		default: ;
	}
	;
}