lumit-test-lcd-1.1.0.rar_4510_s3c4510

/*************************************************************************/ /* */ /* FILE NAME VERSION */ /* */ /* lcd.c KS32C5000, KS32C50100 : 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 <stdio.h> #include <stdlib.h> #include <ctype.h> #include <string.h> #include "snds.h" #include "lcd.h" #include "system.h" /* * Function : LCDTest * Description : LCD Test */ void LCDTest(void) { char lcd_str[40]; int i = 1; while(i++) { sprintf( lcd_str, "number=0x%x", i ); printf( "%s \r\n", lcd_str ); l2Print( lcd_str, "-> www.lumit.org"); } } void LTestPutString(char *ptr) { while(*ptr ) { lPut_byte(*ptr++ ); WaitLcd(5000); } } /* * Function : LCDInit * Description : Initialize LCD */ void LCDInit(void) { // Initialize EXTDBWTH : 8Byte Operation // Initialize EXTACON0 #if 0 EXTDBWTH &= 0xFFCFFFFF ; EXTDBWTH |= DSX0 ; EXTACON0 = LTCOS0 | LTACS0 | LTCOH0 | LTACC0 ; #endif printf( "lcd init 1 \r\n" ); EXTDBWTH &= 0xff3fffff ; EXTDBWTH |= DSX1 ; EXTACON0 = LTCOS1 | LTACS1 | LTCOH1 | LTACC1 ; printf( "lcd init 2 \r\n" ); // Initialize WaitLcd(200) ; printf( "lcd init 3 \r\n" ); /* --- * Function Set * Interface Data Length is : 8 bit * Display Numer of Line is 2 * --- */ LInstRegWrite((U8)0x30) ; WaitLcd(200) ; LInstRegWrite((U8)0x30) ; WaitLcd(200) ; LInstRegWrite((U8)0x30) ; WaitLcd(200) ; LInstRegWrite((U8)0x38) ; WaitLcd(100) ; LInstRegWrite((U8)0x06) ; WaitLcd(200) ; LInstRegWrite((U8)0x0f) ; WaitLcd(200) ; return; /* --- * Display On/Off Control * Display On * Cursor Display * Cursor Blink * --- */ LInstRegWrite((U8)0x0F) ; WaitLcd(100) ; /* --- * Clear Display * --- */ LInstRegWrite((U8)0x01) ; WaitLcd(100) ; /* --- * Cursor or Display Shift * Shift Left * --- */ LInstRegWrite((U8)0x18) ; WaitLcd(100) ; /* --- * Entry Mode Set * Increment DD Ram Address * --- */ LInstRegWrite((U8)0x06) ; WaitLcd(100) ; printf( "lcd init 99 \r\n" ); /*ClearLcdDisplay() ;*/ } /* * Function : LInstRegWrite * Description : LCD Control Register Write */ void LInstRegWrite(U8 DATA) { U8 *LcdInstWrAddr ; printf( "lcd init 91 LCD_Addr_Base = %x \r\n", LCD_Addr_Base ); LcdInstWrAddr = (U8 *)LINSTWR ; printf( "lcd init 92 LcdInstWrAddr=%x; data=%x \r\n", LcdInstWrAddr, DATA ); *LcdInstWrAddr= DATA ; printf( "lcd init 93 \r\n" ); } /* * Function : LInstRegRead, LDataRegRead * Description : LCD Control Register Write */ U8 LInstRegRead(void) { U8 ReadData ; ReadData = (U8)LINSTRD ; return ReadData ; } U8 LDataRegRead(void) { U8 ReadData ; ReadData = (U8)LDATARD ; return ReadData ; } /* * Function : WaitLcd * Description : LCD Control Register Write */ void WaitLcd(int milisec) { int second ; if (!CACHE_ENABLED) second = milisec * 40 ; else second = milisec * 200 ; while(second--) ; } /* * Function : LcdBusyCheck * Description : Wait Until LCD Busy Flag is Cleared */ void LcdBusyCheck(void) { U8 ReadData ; ReadData = (U8)LINSTRD ; while (!ReadData) ; } /* * Function : Mv2LcdLine * Description : Move Second LCD Line */ void Mv2LcdLine(void) { // Set DD Ram Address to LInstRegWrite((U8)0xA8) ; WaitLcd(100) ; } /* * Function : ClearLcdDisplay * Description : Clear LCD Displayed Character */ void ClearLcdDisplay(void) { LInstRegWrite((U8)0x01) ; WaitLcd(100) ; l2Print(" "," ") ; Mv2LcdLine() ; // Change LCD Line to 2'th Line } /* * Function : lPut_byte * Description : LCD Byte Data Write */ void lPut_byte(U8 DATA) { U8 *LcdDataWrAddr ; LcdDataWrAddr = (U8 *)LDATAWR ; *LcdDataWrAddr= DATA ; WaitLcd(3) ; } /* * Function : lPrint * Description : Wait Until LCD Busy Flag is Cleared */ void lPrint(char *ptr ) { while(*ptr ) lPut_byte(*ptr++ ); } void l1Print(char *prt) { LInstRegWrite((U8)0x01) ; WaitLcd(100) ; lPrint(prt) ; Mv2LcdLine() ; // Change LCD Line to 2'th Line } void l2Print(char *L1,char *L2) { LInstRegWrite((U8)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((U8)0x01) ; WaitLcd(100) ; l2Print(temp_buf,L2); va_end(argptr); } /* * Function : LcdUsrModeSet * Description : User Mode LCD Display * Shifted Display */ void LcdUsrModeSet() { LInstRegWrite((U8)0x30) ; WaitLcd(100) ; LInstRegWrite((U8)0x01) ; WaitLcd(100) ; // Clear LInstRegWrite((U8)0x8F) ; WaitLcd(100) ; /* --- * Entry Mode Set * Increment DD Ram Address * Shift Character * --- */ LInstRegWrite((U8)0x07) ; WaitLcd(100) ; }