lh7a400_lcd_evb_eeprom_driver.h

sharp触摸屏测试代码

/**********************************************************************
 *	$Workfile:   lh7a400_lcd_evb_eeprom_driver.h  $
 *	$Revision:   1.1  $
 *	$Author:   KovitzP  $
 *	$Date:   Nov 14 2001 09:01:44  $
 *
 *	Project: LH7A400
 *
 *	Description:
 *      This file contains a driver for the EEPROM device on the LCD
 *      board on LH7A400 evaluation board system.
 *      The EEPROM is a Microchip 93LC46B 64 x 16 EEPROM.
 *
 *	References:
 *      SHARP_EVB_DISPLAY_BOARD_REV2.pdf
 *      93LC46.pdf (Microchip 1K Microwire(R) EEPROM chip spec).
 *
 *  Requires;
 *      ssp_driver.h -- serial communications driver
 *
 *	Revision History:
 *	$Log:   P:/PVCS6_6/archives/LH7A400 (Aruba)/SSP/lh7a400_lcd_evb_eeprom_driver.h-arc  $
 * 
 *    Rev 1.1   Nov 14 2001 09:01:44   KovitzP
 * Modified include hierarchy
 * 
 *    Rev 1.0   Nov 12 2001 13:32:10   KovitzP
 * Initial revision.
 * 
 * 
 *	COPYRIGHT (C) 2001 SHARP MICROELECTRONICS OF THE AMERICAS, INC.
 *		CAMAS, WA
 *********************************************************************/
#ifndef LH7A400_LCD_EVB_EEPROM_DRIVER_H
#define LH7A400_LCD_EVB_EEPROM_DRIVER_H
#include "LH7A400_ssp_driver.h"
#include "LH7A400_evb_ssp_frame_driver.h"

/* Bit rate */
#define EE_BPS 500000

/* define maximum address and word size in the EEPROM */
#define EEPROM_ADR_MAX 63
#define EE_WORDSIZE 16

/* EEPROM commands */

/* erase word at adr */
#define EE_ERASE(adr) (0x1C0 | (adr) )
/* erase entire chip */
#define EE_ERAL 0x120
/* erase/write disable */
#define EE_WDS 0x100
/* erase/write enable */
#define EE_WEN 0x130
/* read word at adr */
#define EE_READ(adr) (0x180 | (adr) )
/* write word at adr */
#define EE_WRITE(adr) (0x140 | (adr) )
/* fill entire EEPROM with the same datum */
#define EE_WRAL (0x110)


/* initialize */
void lcd_eeprom_driver_init(void);


/* erase */
INT_32 lcd_eeprom_erase_word(INT_32 adr, 
                           INT_32 timeout_in_milliseconds);
INT_32 lcd_eeprom_erase_all(INT_32 timeout_in_milliseconds);
/* write/erase protection */
void lcd_eeprom_lock(void);
void lcd_eeprom_unlock(void);
/* read */
UNS_16 lcd_eeprom_read(INT_32 adr);
INT_32 lcd_eeprom_block_read(INT_32 adr, UNS_16 * buffer, INT_32 nwords);
/* write */
INT_32 lcd_eeprom_write(INT_32 adr, UNS_16 data, 
                      INT_32 timeout_in_milliseconds);
INT_32 lcd_eeprom_fill(UNS_16 data, 
                     INT_32 timeout_in_milliseconds);
#endif