sndslcd.c

三星arm s3c4510 evm 板测试程序 本人以在开发板上测试过了 包括lcd,timer,isr器件的测试程序

/*************************************************************************/
/*                                                                       */
/* FILE NAME                                      VERSION                */
/*                                                                       */
/*      sndsLcd.c                  s3c4510                 : version 1.0 */
/*                                                                       */
/* COMPONENT                                                             */
/*                                                                       */
/*                                                                       */
/* DESCRIPTION                                                           */
/*                                                                       */
/*                                                                       */
/* AUTHOR                                                                */
/*                                                                       */
/*                                                                       */
/* DATA STRUCTURES                                                       */
/*                                                                       */
/*                                                                       */
/* FUNCTIONS                                                             */
/*                                                                       */
/*      LCD Test Program for SNDS100 Board                               */
/*                                                                       */
/* DEPENDENCIES                                                          */
/*                                                                       */
/*                                                                       */
/* HISTORY                                                               */
/*                                                                       */
/*         NAME            DATE                    REMARKS               */
/*                                                                       */
/*      hbahn           09-15-1998      Created initial version 1.0      */
/*      in4maker        12-18-1998      Some function added & updated.   */
/*************************************************************************/
/*#include <stdarg.h>

#include <stdlib.h>
#include <ctype.h>
#include <string.h>
#include "snds.h"
#include "uart.h"
#include "pollio.h"
#include "system.h"
#include "s3c4510.h"
*/
#include "copyright_wrs.h"

#include "stdio.h"

#include "sndsLcd.h"
#include "snds100.h"

#include "vxWorks.h"
#include "ioLib.h"
 
/*volatile U32 LCD_Addr_Base ;*/

/*
 * Function : LCDTest
 * Description : LCD Test
 */
void LCDTest(void) 
{
	Print("-- Waiting Key in ..\n ") ;
	Print("Received Data : \n") ;
	sndsLCDInit();
	/*get_key() ;*/
	/*put_byte(get_key()) ;*/


	Print("\r >> LCD Test <<") ;
	LcdUsrModeSet() ;
	LTestPutString("snds100 s3c4510");
	Mv2LcdLine();
	LTestPutString("snds100 s3c4510");
/*	//lPut_byte(get_byte()) ;
	Print("\r >> Press Any Key to Quit LCD Test ") ;
	do 
	{
		LTestPutString("+- KS32C5000 SNDS Demo Board .....    ")  ;
	}while( !kbd_hit() ) ;
	Print("\r >> LCD Test Finished") ;
	LCDInit() ;
	lPrint("LCD Test End..") ;
*/

}

void LTestPutString(char *ptr) 
{
    while(*ptr )
	{
        lPut_byte(*ptr++ );
	WaitLcd(5000);
	}
}


/*
 * Function : LCDInit
 * Description : Initialize LCD 
 */
void sndsLCDInit(void) 
{
	/* Initialize EXTDBWTH : 8Byte Operation
	  Initialize EXTACON0*/ 
	EXTDBWTH &= 0xFFCFFFFF ;
	EXTDBWTH |= DSX0 ; 
	EXTACON0 = LTCOS0 | LTACS0 | LTCOH0 | LTACC0 ; 
/*IT HAS BEEN INITIAL IN BSP*/	
	/* Initialize*/
	WaitLcd(200) ;

	/* ---
	 * Function Set
	 *     Interface Data Length is : 8 bit
	 *     Display Numer of Line is 2
	 * --- */
  	
	LInstRegWrite((UINT8)0x38) ;
 WaitLcd(100) ; 

	/* ---
	 * Display On/Off Control
	 *     Display On
	 *     NO Cursor Display
	 *     Cursor Blink
	 * --- */
	LInstRegWrite((UINT8)0x0D) ;
 WaitLcd(100) ; 

	/* ---
	 * Clear Display
	 * --- */
	LInstRegWrite((UINT8)0x01) ;
 WaitLcd(100) ; 

	/* ---
	 * Cursor or Display Shift
	 *     Shift Left
	 * --- */
	LInstRegWrite((UINT8)0x18) ; 
WaitLcd(100) ; 

	/* ---
	 * Entry Mode Set
	 *     Increment DD Ram Address
	 * --- */
	LInstRegWrite((UINT8)0x06) ; 
WaitLcd(100) ;  


	ClearLcdDisplay() ;
}
void LcdFill(void)
{
	LInstRegWrite((UINT8)0x01) ;
 WaitLcd(100) ;
	lPrint("AbCdEfGh12345678");
	Mv2LcdLine();
	lPrint("!@#$%^&*<>,.?/:;");
	
}
void RegRead(void) 
{ 
	UINT8 ReadData ;	 
	ReadData = (UINT8)LINSTRD ;
	printf("The Value is: %d\n",ReadData);
	 
}
/*
 * Function : LInstRegWrite
 * Description : LCD Control Register Write
 */
void LInstRegWrite(UINT8 DATA) 
{ 
	UINT8 *LcdInstWrAddr ;
	LcdInstWrAddr = (UINT8 *)LINSTWR ;
	*LcdInstWrAddr=  DATA ; 
}

/*
 * Function : LInstRegRead, LDataRegRead
 * Description : LCD Control Register Write
 */
UINT8 LInstRegRead(void) 
{
	UINT8 ReadData ;
	ReadData = (UINT8)LINSTRD ;
	return ReadData ;
}


UINT8 LDataRegRead(void) 
{
	UINT8 ReadData ;
	ReadData = (UINT8)LDATARD ;
	return ReadData ;
}

/*
 * Function : WaitLcd
 * Description : LCD Control Register Write
 */
void WaitLcd(int milisec)
{
	int second ;

	if (!0) second = milisec * 80 ;/*CACHE_ENABLED  40 by sting*/

	while(second--) ;
}

/*
 * Function : LcdBusyCheck
 * Description : Wait Until LCD Busy Flag is Cleared
 */
void LcdBusyCheck(void) 
{
	UINT32 ReadData ;
	do{
	ReadData &= 0x80;
	}		/*sting 02-7-4 22:45*/
	while (!ReadData); 
	
}

/*
 * Function : Mv2LcdLine
 * Description : Move Second LCD Line
 */
void Mv2LcdLine(void)
{
	/*Set DD Ram Address to */
	LInstRegWrite((UINT8)0xC0) ; WaitLcd(100) ; /*0xa8 by sting*/
}

/*
 * Function : ClearLcdDisplay
 * Description : Clear LCD Displayed Character
 */
void ClearLcdDisplay(void)
{
	LInstRegWrite((UINT8)0x01) ; WaitLcd(100) ; 
 
      lPrint(" <S3C4510 SNDS>") ;
 
/*	Mv2LcdLine() ; /* Change LCD Line to 2'th Line*/
	 
	 
}


/*
 * Function : lPut_byte
 * Description : LCD Byte Data Write
 */
void lPut_byte(UINT8 DATA) 
{ 
	UINT8 *LcdDataWrAddr ;
	LcdDataWrAddr = (UINT8 *)LDATAWR ;
/*	LcdBusyCheck;	*/			/*sting 02-7-4 22:35*/
	*LcdDataWrAddr=  DATA ; 
	WaitLcd(15) ; 
}

/*
 * Function : lPrint
 * Description : Wait Until LCD Busy Flag is Cleared
 */
void lPrint(char *ptr ) 
{
    while(*ptr )
        {
        	lPut_byte(*ptr++ );
        	WaitLcd(15) ;
         }
}

void  l1Print(char *prt) 
{
    LInstRegWrite((UINT8)0x01) ; WaitLcd(100) ; 
    lPrint(prt);
    Mv2LcdLine() ; /* Change LCD Line to 2'th Line*/
}

void  l2Print(char *L1,char *L2) 
{
    LInstRegWrite((UINT8)0x01) ; WaitLcd(100) ; 
    lPrint(L1) ;
    Mv2LcdLine() ; /* Change LCD Line to 2'th Line*/
    lPrint(L2) ;
}

/*
void lfPrint(char *L2,char *fmt,...)
{
    va_list argptr;
    char temp_buf[LCD_DIGIT_NO];

    va_start(argptr, fmt);
    vsprintf(temp_buf, fmt, argptr);
    LInstRegWrite((UINT8)0x01) ; WaitLcd(100) ; 
    l2Print(temp_buf,L2);
    va_end(argptr);
}

by sting02-7-4 21:57*/
/*
 * Function : LcdUsrModeSet
 * Description : User Mode LCD Display
 *               Shifted Display
 */
void LcdUsrModeSet() 
{
	LInstRegWrite((UINT8)0x30) ; WaitLcd(100) ; 
	LInstRegWrite((UINT8)0x01) ; WaitLcd(100) ; /* Clear*/
	LInstRegWrite((UINT8)0x8F) ; WaitLcd(100) ; 
	/* ---
	 * Entry Mode Set
	 *     Increment DD Ram Address
	 *     Shift Character
	 * --- */
	LInstRegWrite((UINT8)0x07) ; WaitLcd(100) ; 
}