sdcmd.h
资源名称:SD卡读写模块.rar [点击查看]
上传用户:pudewen666
上传日期:2007-06-08
资源大小:75k
文件大小:9k
源码类别:
微处理器开发
开发平台:
Windows_Unix
- /****************************************Copyright (c)**************************************************
- ** Guangzhou ZLG-MCU Development Co.,LTD.
- ** graduate school
- ** http://www.zlgmcu.com
- **
- **--------------File Info-------------------------------------------------------------------------------
- ** File name: sddriver.c
- ** Last modified Date: 2005-1-6
- ** Last Version: V1.0
- ** Descriptions: sd 卡驱动软件包: SD卡物理层 ---- SD卡SPI模式支持的命令(头文件)
- ** Soft Packet of SD Card Driver: commands that sd card supported in spi mode(header file)
- **
- **------------------------------------------------------------------------------------------------------
- ** Created by: Ming Yuan Zheng
- ** Created date: 2005-1-6
- ** Version: V1.0
- ** Descriptions: The original version
- **
- **------------------------------------------------------------------------------------------------------
- ** Modified by:
- ** Modified date:
- ** Version:
- ** Descriptions:
- **
- **------------------------------------------------------------------------------------------------------
- ** Modified by:
- ** Modified date:
- ** Version:
- ** Descriptions:
- **
- ********************************************************************************************************/
- /*
- *******************************************************
- SD 卡的相关命令与响应宏定义
- *******************************************************
- */
- /* 命令响应定义 define command's response */
- #define R1 1
- #define R1B 2
- #define R2 3
- #define R3 4
- /* R1和R2高字节错误码 R1 and upper byte of R2 error code */
- #define MSK_IDLE 0x01
- #define MSK_ERASE_RST 0x02
- #define MSK_ILL_CMD 0x04
- #define MSK_CRC_ERR 0x08
- #define MSK_ERASE_SEQ_ERR 0x10
- #define MSK_ADDR_ERR 0x20
- #define MSK_PARAM_ERR 0x40
- /* R2低字节错误码 lower byte of R2 error code */
- #define MSK_TOK_ERROR 0x01
- #define MSK_TOK_CC_ERROR 0x02
- #define MSK_TOK_ECC_FAILED 0x04
- #define MSK_TOK_CC_OUTOFRANGE 0x08
- #define MSK_TOK_CC_LOCKED 0x10
- /* 数据令牌 Data Tokens */
- #define SD_TOK_READ_STARTBLOCK 0xFE
- #define SD_TOK_WRITE_STARTBLOCK 0xFE
- #define SD_TOK_READ_STARTBLOCK_M 0xFE
- #define SD_TOK_WRITE_STARTBLOCK_M 0xFC
- #define SD_TOK_STOP_MULTI 0xFD
- /* 数据响应令牌 Data Response Tokens */
- #define SD_RESP_DATA_MSK 0x0F //数据响应掩码
- #define SD_RESP_DATA_ACCETPTED 0x05 //数据被接受
- #define SD_RESP_DATA_REJECT_CRC 0x0B //由于CRC错误而被拒绝
- #define SD_RESP_DATA_REJECT_WRITE 0x0D //由于写错误而被拒绝
- /* 等待类型 Wait Type */
- #define SD_WAIT_READ 0x00 //读等待
- #define SD_WAIT_WRITE 0x01 //写等待
- #define SD_WAIT_ERASE 0x02 //擦除等待
- #define SD_READREG_TIMEOUT 8
- /*
- *********************************************
- SD卡SPI模式下命令集
- *********************************************
- */
- /******************************** 基本命令集 Basic command set **************************/
- /* 复位SD 卡 Reset cards to idle state */
- #define CMD0 0
- #define CMD0_R R1
- /* 读OCR寄存器 Read the OCR (MMC mode, do not use for SD cards) */
- #define CMD1 1
- #define CMD1_R R1
- /* 读CSD寄存器 Card sends the CSD */
- #define CMD9 9
- #define CMD9_R R1
- /* 读CID寄存器 Card sends CID */
- #define CMD10 10
- #define CMD10_R R1
- /* 停止读多块时的数据传输 Stop a multiple block (stream) read/write operation */
- #define CMD12 12
- #define CMD12_R R1B
- /* 读 Card_Status 寄存器 Get the addressed card's status register */
- #define CMD13 13
- #define CMD13_R R2
- /***************************** 块读命令集 Block read commands **************************/
- /* 设置块的长度 Set the block length */
- #define CMD16 16
- #define CMD16_R R1
- /* 读单块 Read a single block */
- #define CMD17 17
- #define CMD17_R R1
- /* 读多块,直至主机发送CMD12为止 Read multiple blocks until a CMD12 */
- #define CMD18 18
- #define CMD18_R R1
- /***************************** 块写命令集 Block write commands *************************/
- /* 写单块 Write a block of the size selected with CMD16 */
- #define CMD24 24
- #define CMD24_R R1
- /* 写多块 Multiple block write until a CMD12 */
- #define CMD25 25
- #define CMD25_R R1
- /* 写CSD寄存器 Program the programmable bits of the CSD */
- #define CMD27 27
- #define CMD27_R R1
- /***************************** 写保护 Write protection *****************************/
- /* Set the write protection bit of the addressed group */
- #define CMD28 28
- #define CMD28_R R1B
- /* Clear the write protection bit of the addressed group */
- #define CMD29 29
- #define CMD29_R R1B
- /* Ask the card for the status of the write protection bits */
- #define CMD30 30
- #define CMD30_R R1
- /***************************** 擦除命令 Erase commands *******************************/
- /* 设置擦除块的起始地址 Set the address of the first write block to be erased */
- #define CMD32 32
- #define CMD32_R R1
- /* 设置擦除块的终止地址 Set the address of the last write block to be erased */
- #define CMD33 33
- #define CMD33_R R1
- /* 擦除所选择的块 Erase the selected write blocks */
- #define CMD38 38
- #define CMD38_R R1B
- /***************************** 锁卡命令 Lock Card commands ***************************/
- /* 设置/复位密码或上锁/解锁卡 Set/reset the password or lock/unlock the card */
- #define CMD42 42
- #define CMD42_R R1B
- /* Commands from 42 to 54, not defined here */
- /***************************** 应用命令 Application-specific commands ****************/
- /* 禁止下一个命令为应用命令 Flag that the next command is application-specific */
- #define CMD55 55
- #define CMD55_R R1
- /* 应用命令的通用I/O General purpose I/O for application-specific commands */
- #define CMD56 56
- #define CMD56_R R1
- /* 读OCR寄存器 Read the OCR (SPI mode only) */
- #define CMD58 58
- #define CMD58_R R3
- /* 使能或禁止 CRC Turn CRC on or off */
- #define CMD59 59
- #define CMD59_R R1
- /***************************** 应用命令 Application-specific commands ***************/
- /* 获取 SD Status寄存器 Get the SD card's status */
- #define ACMD13 13
- #define ACMD13_R R2
- /* 得到已写入卡中的块的个数 Get the number of written write blocks (Minus errors ) */
- #define ACMD22 22
- #define ACMD22_R R1
- /* 在写之前,设置预先擦除的块的个数 Set the number of write blocks to be pre-erased before writing */
- #define ACMD23 23
- #define ACMD23_R R1
- /* 读取OCR寄存器 Get the card's OCR (SD mode) */
- #define ACMD41 41
- #define ACMD41_R R1
- /* 连接/断开CD/DATA[3]引脚上的上拉电阻 Connect or disconnect the 50kOhm internal pull-up on CD/DAT[3] */
- #define ACMD42 42
- #define ACMD42_R R1
- /* 读取SCR寄存器 Get the SD configuration register */
- #define ACMD51 51
- #define ACMD51_R R1
- INT8U SD_SendCmd(INT8U cmd, INT8U *param, INT8U resptype, INT8U *resp); // 一个SPI命令
- void SD_PackParam(INT8U *parameter, INT32U value); // 封装参数
- INT8U SD_BlockCommand(INT8U cmd, INT8U resptype, INT32U parameter); // 块命令
- INT8U SD_ResetSD(void); // 复位SD卡
- INT8U SD_ReadCSD(INT8U csdlen, INT8U *recbuf); // 读CSD read CSD register
- INT8U SD_ReadCID(INT8U cidlen, INT8U *recbuf); // 读CID read CID register
- INT8U SD_StopTransmission(void); // 停止传输
- INT8U SD_ReadCard_Status(INT8U len, INT8U *buffer); // 读Card Status read Card Status register
- INT8U SD_SetBlockLen(INT32U length); // 设置块长度
- INT8U SD_ReadSingleBlock(INT32U blockaddr); // 读单块
- INT8U SD_ReadMultipleBlock(INT32U blockaddr); // 读多块
- INT8U SD_WriteSingleBlock(INT32U blockaddr); // 写单块
- INT8U SD_WriteMultipleBlock(INT32U blockaddr); // 写多块
- INT8U SD_ProgramCSD(INT8U len, INT8U *buff); // 写CSD寄存器 write CSD register
- INT8U SD_EraseStartBlock(INT32U startblock); // 擦块起始地址
- INT8U SD_EraseEndBlock(INT32U endblock); // 擦块终止地址
- INT8U SD_EraseSelectedBlock(void); // 擦除所选的块
- INT8U SD_ReadOCR(INT8U ocrlen,INT8U *recbuf); // 读OCR read OCR register
- INT8U SD_EnableCRC(INT8U bEnable); // 使能CRC校验 enable CRC
- // 特殊应用命令
- INT8U SD_ReadSD_Status(INT8U sdslen, INT8U *recbuf); // 读SD_Status read SD_Status
- INT8U SD_GetNumWRBlcoks(INT32U *blocknum); // 得到正确写入块数
- INT8U SD_ReadSCR(INT8U scrlen, INT8U *recbuf); // 读SCR read SCR register
- // 数据流函数
- INT8U SD_ReadRegister(INT32U len, INT8U *recbuf); // 读数据
- INT8U SD_ReadBlockData(INT32U len, INT8U *recbuf); // 读块数据
- INT8U SD_WriteBlockData(INT8U bmulti, INT32U len, INT8U *sendbuf); // 写块数据
- // 其它函数
- void SD_StopMultiToken(void); // 停止多块写令牌
- INT8U SD_WaitBusy(INT8U waittype); // 忙
- void SD_SPIDelay(INT8U value); // 发生SPI时钟