sd_spi.h

ZLG的EASYARM8962开发板Keil实验例程

/****************************************Copyright (c)****************************************************
**                               Guangzhou ZHIYUAN electronics Co.,LTD.
**                                     
**                                 http://www.embedtools.com
**
**--------------File Info---------------------------------------------------------------------------------
** File Name:          sd_SPI.h
** Last modified Date: 2007-10-20
** Last Version:       1.0
** Description:        对SD卡的操作速率进行设置
** 
**--------------------------------------------------------------------------------------------------------
** Created By:         zhao shimin
** Created date:       2007-11-20
** Version:            1.0
** Descriptions:       初始版本
**
**--------------------------------------------------------------------------------------------------------
** Modified by:
** Modified date:
** Version:
** Description:
**
*********************************************************************************************************/
#ifndef __sd_SPI_H
#define	__sd_SPI_H

#define BitRate			   2500000                  /*  读写SD卡时的工作波特率                 */
#define DataWidth		   8  						/*  读写SD卡时用的数据宽度*/

#define InitBitRate        400000	               /*　设置初始化SD卡时的SPI总线速率*/
#define InitDataWidth      8					   /*  设置初始化SD卡时的SPI数据宽度*/

#endif