lcd_io.h

upsd 3200序列的usb驱动

/*---------------------------------------------------------------------------
Copyright (c) 2002 ST Microelectronics
This example demo code is provided as is and has no warranty,
implied or otherwise.  You are free to use/modify any of the provided
code at your own risk in your applications with the expressed limitation
of liability (see below) so long as your product using the code contains
at least one uPSD products (device).

LIMITATION OF LIABILITY:   NEITHER STMicroelectronics NOR ITS VENDORS OR 
AGENTS SHALL BE LIABLE FOR ANY LOSS OF PROFITS, LOSS OF USE, LOSS OF DATA,
INTERRUPTION OF BUSINESS, NOR FOR INDIRECT, SPECIAL, INCIDENTAL OR
CONSEQUENTIAL DAMAGES OF ANY KIND WHETHER UNDER THIS AGREEMENT OR
OTHERWISE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
--------------------------------------------------------------------------*/

#ifndef _LCD_H_
#define _LCD_H_

typedef xdata struct LCD_display_st {
	uchar LCD_CMD_WR;  		//   LCD_BASE+0x00
	uchar LCD_CMD_RD;  		//           +0x01
   	uchar LCD_RAM_WR;		//           +0x02
   	uchar LCD_RAM_RD;  		//           +0x03  
}  DISPLAY;

// Read Only from Command register
#define  BF_BIT  0x80       // Busy flag

// Write Only to Command register
#define DD_ADDR 0x80        // set DDRAM address
#define CG_ADDR 0x40        // set CGRAM address

//
#define LCD_LINE_LENGTH  0x000F		// length of single line on lcd display

// Prototypes
void initLCD(void);					// initialize LCD module per specs   
void printfLCD(uchar *chr_ptr, ...);

#endif