www.pudn.com > ucosii_block.rar > LCD.H

/* 
********************************************************************************************************* 
*                                   Embedded Systems Building Blocks 
*                                Complete and Ready-to-Use Modules in C 
* 
*                                        LCD Display Module Driver 
* 
*                            (c) Copyright 1999, Jean J. Labrosse, Weston, FL 
*                                           All Rights Reserved 
* 
* Filename   : LCD.H 
* Programmer : Jean J. Labrosse 
********************************************************************************************************* 
*/ 
 
/* 
********************************************************************************************************* 
*                                               CONSTANTS 
********************************************************************************************************* 
*/ 
 
#ifndef  CFG_H 
#define  DISP_DLY_CNTS              8       /* Number of iterations to delay for 40 uS (software loop) */ 
 
#define  DISP_PORT_CMD         0x0303       /* Address of the Control Word (82C55) to control RS & E   */ 
#define  DISP_PORT_DATA        0x0300       /* Port address of the DATA port of the LCD module         */ 
#endif 
 
#define  DISP_SEL_CMD_REG           0 
#define  DISP_SEL_DATA_REG          1 
 
/* 
********************************************************************************************************* 
*                                           FUNCTION PROTOTYPES 
********************************************************************************************************* 
*/ 
 
void  DispChar(INT8U row, INT8U col, char c); 
void  DispClrLine(INT8U line); 
void  DispClrScr(void); 
void  DispDefChar(INT8U id, INT8U *pat); 
void  DispDummy(void); 
void  DispHorBar(INT8U row, INT8U col, INT8U val); 
void  DispHorBarInit(void); 
void  DispInit(INT8U maxrows, INT8U maxcols); 
void  DispStr(INT8U row, INT8U col, char *s); 
 
/* 
********************************************************************************************************* 
*                                           FUNCTION PROTOTYPES 
*                                            HARDWARE SPECIFIC 
********************************************************************************************************* 
*/ 
 
void  DispDataWr(INT8U data); 
void  DispInitPort(void); 
void  DispSel(INT8U sel);