u8 MSD_WriteBuffer(u8* pBuffer, u32 WriteAddr, u32 NumByteToWrite)
{
u32 i = 0, NbrOfBlock = 0, Offset = 0;
u8 rvalue = MSD_RESPONSE_FAILURE;
/* Calculate number of blocks to write */
NbrOfBlock = NumByteToWrite / BLOCK_SIZE;
/* MSD chip select low */
spi_ss(_FLASH_NUM0,0);
/* Data transfer */
while (NbrOfBlock --)
{
/* Send CMD24 (MSD_WRITE_BLOCK) to write blocks */
MSD_SendCmd(MSD_WRITE_BLOCK, WriteAddr + Offset, 0xFF);
/* Check if the MSD acknowledged the write block command: R1 response (0x00: no errors) */
if (MSD_GetResponse(MSD_RESPONSE_NO_ERROR))
{
return MSD_RESPONSE_FAILURE;
}
/* Send dummy byte */
spi_send(DUMMY);
/* Send the data token to signify the start of the data */
spi_send(MSD_START_DATA_SINGLE_BLOCK_WRITE);
/* Write the block data to MSD : write count data by block */
for (i = 0; i < BLOCK_SIZE; i++)
{
/* Send the pointed byte */
spi_send(*pBuffer);
/* Point to the next location where the byte read will be saved */
pBuffer++;
}
/* Set next write address */
Offset += 512;
/* Put CRC bytes (not really needed by us, but required by MSD) */
spi_send(DUMMY);
spi_send(DUMMY);
/* Read data response */
if (MSD_GetDataResponse() == MSD_DATA_OK)
{
/* Set response value to success */
rvalue = MSD_RESPONSE_NO_ERROR;
}
else
{
/* Set response value to failure */
rvalue = MSD_RESPONSE_FAILURE;
}
}
/* MSD chip select high */
spi_ss(_FLASH_NUM0,1);
/* Send dummy byte: 8 Clock pulses of delay */
spi_send(DUMMY);
/* Returns the reponse */
return rvalue;
}
/*******************************************************************************
* Function Name : MSD_ReadBuffer
* Description : Reads multiple block of data from the MSD.
* Input : - pBuffer : pointer to the buffer that receives the data read
* from the MSD.
* - ReadAddr : MSD's internal address to read from.
* - NumByteToRead : number of bytes to read from the MSD.
* Output : None
* Return : The MSD Response: - MSD_RESPONSE_FAILURE: Sequence failed
* - MSD_RESPONSE_NO_ERROR: Sequence succeed
*******************************************************************************/
u8 MSD_ReadBuffer(u8* pBuffer, u32 ReadAddr, u32 NumByteToRead)
{
u32 i = 0, NbrOfBlock = 0, Offset = 0;
u8 rvalue = MSD_RESPONSE_FAILURE;
/* Calculate number of blocks to read */
NbrOfBlock = NumByteToRead / BLOCK_SIZE;
/* MSD chip select low */
spi_ss(_FLASH_NUM0,0);
/* Data transfer */
while (NbrOfBlock --)
{
/* Send CMD17 (MSD_READ_SINGLE_BLOCK) to read one block */
MSD_SendCmd(MSD_READ_SINGLE_BLOCK, ReadAddr + Offset, 0xFF);
/* Check if the MSD acknowledged the read block command: R1 response (0x00: no errors) */
if (MSD_GetResponse(MSD_RESPONSE_NO_ERROR))
{
return MSD_RESPONSE_FAILURE;
}
/* Now look for the data token to signify the start of the data */
if (!MSD_GetResponse(MSD_START_DATA_SINGLE_BLOCK_READ))
{
/* Read the MSD block data : read NumByteToRead data */
for (i = 0; i < BLOCK_SIZE; i++)
{
/* Read the pointed data */
*pBuffer = spi_send(DUMMY);
/* Point to the next location where the byte read will be saved */
pBuffer++;
}
/* Set next read address*/
Offset += 512;
/* get CRC bytes (not really needed by us, but required by MSD) */
spi_send(DUMMY);
spi_send(DUMMY);
/* Set response value to success */
rvalue = MSD_RESPONSE_NO_ERROR;
}
else
{
/* Set response value to failure */
rvalue = MSD_RESPONSE_FAILURE;
}
}
/* MSD chip select high */
spi_ss(_FLASH_NUM0,1);
/* Send dummy byte: 8 Clock pulses of delay */
spi_send(DUMMY);
/* Returns the reponse */
return rvalue;
}
/*******************************************************************************
* Function Name : MSD_GoIdleState
* Description : Put MSD in Idle state.
* Input : None
* Output : None
* Return : The MSD Response: - MSD_RESPONSE_FAILURE: Sequence failed
* - MSD_RESPONSE_NO_ERROR: Sequence succeed
*******************************************************************************/
u8 MSD_GoIdleState(void)
{
/* MSD chip select low */
MSD_CS_LOW();
Delay_us();
/* Send CMD0 (GO_IDLE_STATE) to put MSD in SPI mode */
MSD_SendCmd(MSD_GO_IDLE_STATE, 0, 0x95);
/* Wait for In Idle State Response (R1 Format) equal to 0x01 */
if (MSD_GetResponse(MSD_IN_IDLE_STATE))
{
/* No Idle State Response: return response failue */
return MSD_RESPONSE_FAILURE;
}
/*----------Activates the card initialization process-----------*/
do
{
/* MSD chip select high */
MSD_CS_HIGH();
/* Send Dummy byte 0xFF */
MSD_WriteByte(DUMMY);
/* MSD chip select low */
MSD_CS_LOW();
/* Send CMD1 (Activates the card process) until response equal to 0x0 */
MSD_SendCmd(MSD_SEND_OP_COND, 0, 0xFF);
/* Wait for no error Response (R1 Format) equal to 0x00 */
}
while (MSD_GetResponse(MSD_RESPONSE_NO_ERROR));
/* MSD chip select high */
MSD_CS_HIGH();
/* Send dummy byte 0xFF */
MSD_WriteByte(DUMMY);
return MSD_RESPONSE_NO_ERROR;
}
/*******************************************************************************
* Function Name : MSD_GetStatus
* Description : Returns the MSD status.
* Input : None
* Output : None
* Return : The MSD status.
*******************************************************************************/
u16 MSD_GetStatus(void)
{
u16 Status = 0;
/* MSD chip select low */
spi_ss(_FLASH_NUM0,0);
/* Send CMD13 (MSD_SEND_STATUS) to get MSD status */
MSD_SendCmd(MSD_SEND_STATUS, 0, 0xFF);
Status = spi_send(DUMMY);
Status |= (u16)(spi_send(DUMMY) << 8);
/* MSD chip select high */
spi_ss(_FLASH_NUM0,1);
/* Send dummy byte 0xFF */
spi_send(DUMMY);
return Status;
}
/*******************************************************************************
* Function Name : MSD_GetStatus
* Description : Returns the MSD status.
* Input : None
* Output : None
* Return : The MSD status.
*******************************************************************************/
u16 MSD_GetStatus(void)
{
u16 Status = 0;
/* MSD chip select low */
Clr_SD_CS;
/* Send CMD13 (MSD_SEND_STATUS) to get MSD status */
MSD_SendCmd(MSD_SEND_STATUS, 0, 0xFF);
Status = MSD_ReadByte();
Status |= (u16)(MSD_ReadByte() << 8);
/* MSD chip select high */
Set_SD_CS;
/* Send dummy byte 0xFF */
MSD_WriteByte(DUMMY);
return Status;
}
/*******************************************************************************
MicroSD Read a Block return: 0x00=success
*******************************************************************************/
u8 MSD_ReadBlock(u8* pBuffer, u32 ReadAddr, u16 NumByteToRead)
{ u32 i = 0; u8 rvalue = MSD_RESPONSE_FAILURE;
mutex++;
while (mutex > 1);
MSD_CS_LOW(); Delay_us();
MSD_SendCmd(MSD_READ_SINGLE_BLOCK, ReadAddr, 0xFF);//send CMD17
if (!MSD_GetResponse(MSD_RESPONSE_NO_ERROR)) {
if (!MSD_GetResponse(MSD_START_DATA_SINGLE_BLOCK_READ)) {
for (i = 0; i < NumByteToRead; i++) {
*pBuffer = MSD_ReadByte(); pBuffer++;
}
MSD_ReadByte(); MSD_ReadByte(); //DUMMY CRC bytes
rvalue = MSD_RESPONSE_NO_ERROR;
}
}
MSD_CS_HIGH(); MSD_WriteByte(DUMMY); //Send dummy byte: 8 Clock pulses of delay
mutex--;
return rvalue;
}
/*******************************************************************************
MicroSD Write a Block return: 0x00=success
*******************************************************************************/
u8 MSD_WriteBlock(u8* pBuffer, u32 WriteAddr, u16 NumByteToWrite)
{ u32 i=0; u8 rvalue = MSD_RESPONSE_FAILURE;
mutex++;
while (mutex > 1);
MSD_CS_LOW(); Delay_us();
MSD_SendCmd(MSD_WRITE_BLOCK, WriteAddr, 0xFF);//Send CMD24
if(!MSD_GetResponse(MSD_RESPONSE_NO_ERROR)){
MSD_WriteByte(DUMMY); //Send dummy byte: 8 Clock pulses of delay
MSD_WriteByte(0xFE);
for(i=0; i<NumByteToWrite; i++) {
MSD_WriteByte(*pBuffer); pBuffer++;
}
MSD_ReadByte(); MSD_ReadByte(); //DUMMY CRC bytes
if(MSD_GetDataResponse()==MSD_DATA_OK) rvalue=MSD_RESPONSE_NO_ERROR;
}
MSD_CS_HIGH(); MSD_WriteByte(DUMMY); //Send dummy byte: 8 Clock pulses of delay
mutex--;
return rvalue;
}
/*******************************************************************************
* Function Name : MSD_WriteBlock
* Description : Writes a block on the MSD
* Input : - pBuffer : pointer to the buffer containing the data to be
* written on the MSD.
* - WriteAddr : address to write on.
* - NumByteToWrite: number of data to write
* Output : None
* Return : The MSD Response: - MSD_RESPONSE_FAILURE: Sequence failed
* - MSD_RESPONSE_NO_ERROR: Sequence succeed
*******************************************************************************/
u8 MSD_WriteBlock(u8* pBuffer, u32 WriteAddr, u16 NumByteToWrite)
{
u32 i = 0;
u8 rvalue = MSD_RESPONSE_FAILURE;
return 0;
/* MSD chip select low */
spi_ss(_FLASH_NUM0,0);
/* Send CMD24 (MSD_WRITE_BLOCK) to write multiple block */
MSD_SendCmd(MSD_WRITE_BLOCK, WriteAddr, 0xFF);
/* Check if the MSD acknowledged the write block command: R1 response (0x00: no errors) */
if (!MSD_GetResponse(MSD_RESPONSE_NO_ERROR))
{
/* Send a dummy byte */
spi_send(DUMMY);
/* Send the data token to signify the start of the data */
spi_send(0xFE);
/* Write the block data to MSD : write count data by block */
for (i = 0; i < NumByteToWrite; i++)
{
/* Send the pointed byte */
spi_send(*pBuffer);
/* Point to the next location where the byte read will be saved */
pBuffer++;
}
/* Put CRC bytes (not really needed by us, but required by MSD) */
spi_send(DUMMY);
spi_send(DUMMY);
/* Read data response */
if (MSD_GetDataResponse() == MSD_DATA_OK)
{
rvalue = MSD_RESPONSE_NO_ERROR;
}
}
/* MSD chip select high */
spi_ss(_FLASH_NUM0,1);
/* Send dummy byte: 8 Clock pulses of delay */
spi_send(DUMMY);
/* Returns the reponse */
return rvalue;
}
/*******************************************************************************
* Function Name : MSD_ReadBlock
* Description : Reads a block of data from the MSD.
* Input : - pBuffer : pointer to the buffer that receives the data read
* from the MSD.
* - ReadAddr : MSD's internal address to read from.
* - NumByteToRead : number of bytes to read from the MSD.
* Output : None
* Return : The MSD Response: - MSD_RESPONSE_FAILURE: Sequence failed
* - MSD_RESPONSE_NO_ERROR: Sequence succeed
*******************************************************************************/
u8 MSD_ReadBlock(u8* pBuffer, u32 ReadAddr, u16 NumByteToRead)
{
u32 i = 0;
u8 rvalue = MSD_RESPONSE_FAILURE;
return 0;
/* MSD chip select low */
spi_ss(_FLASH_NUM0,0);
/* Send CMD17 (MSD_READ_SINGLE_BLOCK) to read one block */
MSD_SendCmd(MSD_READ_SINGLE_BLOCK, ReadAddr, 0xFF);
/* Check if the MSD acknowledged the read block command: R1 response (0x00: no errors) */
if (!MSD_GetResponse(MSD_RESPONSE_NO_ERROR))
{
/* Now look for the data token to signify the start of the data */
if (!MSD_GetResponse(MSD_START_DATA_SINGLE_BLOCK_READ))
{
/* Read the MSD block data : read NumByteToRead data */
for (i = 0; i < NumByteToRead; i++)
{
/* Save the received data */
*pBuffer = spi_send(DUMMY);
/* Point to the next location where the byte read will be saved */
pBuffer++;
}
/* Get CRC bytes (not really needed by us, but required by MSD) */
spi_send(DUMMY);
spi_send(DUMMY);
/* Set response value to success */
rvalue = MSD_RESPONSE_NO_ERROR;
}
}
/* MSD chip select high */
spi_ss(_FLASH_NUM0,1);
/* Send dummy byte: 8 Clock pulses of delay */
spi_send(DUMMY);
/* Returns the reponse */
return rvalue;
}
/*******************************************************************************
* Function Name : MSD_ReadBlock
* Description : Reads a block of data from the MSD.
* Input : - pBuffer : pointer to the buffer that receives the data read
* from the MSD.
* - ReadAddr : MSD's internal address to read from.
* - NumByteToRead : number of bytes to read from the MSD.
* Output : None
* Return : The MSD Response: - MSD_RESPONSE_FAILURE: Sequence failed
* - MSD_RESPONSE_NO_ERROR: Sequence succeed
*******************************************************************************/
u8 MSD_ReadBlock_DMA(u8 *pBuffer, u32 ReadAddr, u16 NumByteToRead)
{
u8 rvalue = MSD_RESPONSE_FAILURE;
DMA_InitTypeDef DMA_InitStructure;
char DuumyClock[512];
// INT8U err;
memset(DuumyClock, 0xff, 512);
// debug("MSD_ReadBlock_DMA!\r\n");
if(CardInfo.CardType != CARDTYPE_SDV2HC)
{
ReadAddr = ReadAddr << 9;
}
/* MSD chip select low */
MSD_CS_LOW();
DMA_DeInit(DMA1_Channel4);
DMA_DeInit(DMA1_Channel5);
DMA_InitStructure.DMA_PeripheralBaseAddr = (u32)&SPI2->DR;
DMA_InitStructure.DMA_MemoryBaseAddr = (u32)pBuffer;
DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralSRC;
DMA_InitStructure.DMA_BufferSize = 512;
DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable;
DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Enable;
DMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_Byte;
DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_Byte;
DMA_InitStructure.DMA_Mode = DMA_Mode_Normal;
DMA_InitStructure.DMA_Priority = DMA_Priority_VeryHigh;
DMA_InitStructure.DMA_M2M = DMA_M2M_Disable;
DMA_Init(DMA1_Channel4, &DMA_InitStructure);
DMA_InitStructure.DMA_MemoryBaseAddr = (u32)DuumyClock; //512字节的dummy
DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralDST;
//DMA_InitStructure.DMA_Mode = DMA_Mode_Circular;
DMA_InitStructure.DMA_Priority = DMA_Priority_Low;
DMA_Init(DMA1_Channel5, &DMA_InitStructure);
/* Enable DMA1 Channel4 Transfer Complete interrupt */
DMA_ITConfig(DMA1_Channel4, DMA_IT_TC, ENABLE);
/* Enable DMA1 Channel5 Transfer Complete interrupt */
DMA_ITConfig(DMA1_Channel5, DMA_IT_TC, ENABLE);
SPI_I2S_DMACmd(SPI2, SPI_I2S_DMAReq_Tx, ENABLE);
SPI_I2S_DMACmd(SPI2, SPI_I2S_DMAReq_Rx, ENABLE);
/* Send CMD17 (MSD_READ_SINGLE_BLOCK) to read one block */
MSD_SendCmd(CMD17, ReadAddr, 0xFF);
/* Check if the MSD acknowledged the read block command: R1 response (0x00: no errors) */
if (!MSD_GetResponse(MSD_RESPONSE_NO_ERROR))
{
/* Now look for the data token to signify the start of the data */
if (!MSD_GetResponse(MSD_START_DATA_SINGLE_BLOCK_READ))
{
DMA_Cmd(DMA1_Channel5, ENABLE);
DMA_Cmd(DMA1_Channel4, ENABLE);
#ifdef DMA1_IRQ
OSFlagPend(Sem_SD_DMA, (OS_FLAGS)3, OS_FLAG_WAIT_SET_ALL, 0, &err); //请求信号量集的第0和第1位且都置1。
//debug("MSD_ReadBlock_DMA OSFlagPend err=%d \r\n",err);
DMA_ClearFlag(DMA1_FLAG_TC4);
#else
while(!DMA_GetFlagStatus(DMA1_FLAG_TC5));
while(!DMA_GetFlagStatus(DMA1_FLAG_TC4));
DMA_ClearFlag(DMA1_FLAG_TC4);
#endif
/* Get CRC bytes (not really needed by us, but required by MSD) */
MSD_ReadByte();
MSD_ReadByte();
/* Set response value to success */
rvalue = MSD_RESPONSE_NO_ERROR;
}
else
{
//debug("\r\n erro:MSD_START_DATA_SINGLE_BLOCK_READ\r\n");
}
}
else
{
//debug("\r\n error:MSD_RESPONSE_NO_ERROR\r\n");
}
DMA_Cmd(DMA1_Channel4, DISABLE);
DMA_Cmd(DMA1_Channel5, DISABLE);
/* MSD chip select high */
MSD_CS_HIGH();
/* Send dummy byte: 8 Clock pulses of delay */
MSD_WriteByte(DUMMY_BYTE);
/* Send stop data transmit command - CMD12 */
_send_command(CMD12, 0, 0);
/* Returns the reponse */
return rvalue;
}
/************************************************************************************
* Function Name : MSD_WriteMultipleBlock_DMA(uint32_t sector, uc8 *buffer，u16 NumByteToWrite)
* Description : None
* Input : - sector:
* - buffer:
* Output : None
* Return : None
* Attention : None
************************************************************************************/
int MSD_WriteMultipleBlock_DMA(uint32_t sector, uc8 *buffer, u8 NbrOfSector, u16 NumByteToWrite)
{
uint8 r1;
// uint16_t i=0;
uint32_t retry;
u8 value = 0;
// INT8U err;
u8 rvalue = MSD_RESPONSE_FAILURE;
DMA_InitTypeDef DMA_InitStructure; //定义DMA初始化结构体
/*begin:yangfei added 2012.11.29*/
// debug("MSD_WriteMultipleBlock_DMA\r\n");
_card_enable();
DMA_DeInit(DMA1_Channel5);
DMA_InitStructure.DMA_PeripheralBaseAddr = (u32)&SPI2->DR;
DMA_InitStructure.DMA_MemoryBaseAddr = (u32)buffer;
DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralDST;
DMA_InitStructure.DMA_BufferSize = NumByteToWrite;
DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable;
DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Enable;
DMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_Byte;
DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_Byte;
DMA_InitStructure.DMA_Mode = DMA_Mode_Normal;
DMA_InitStructure.DMA_Priority = DMA_Priority_Medium;
DMA_InitStructure.DMA_M2M = DMA_M2M_Disable;
DMA_Init(DMA1_Channel5, &DMA_InitStructure);
/* Enable DMA1 Channel5 Transfer Complete interrupt */
DMA_ITConfig(DMA1_Channel5, DMA_IT_TC, ENABLE);
SPI_I2S_DMACmd(SPI2, SPI_I2S_DMAReq_Tx, ENABLE);
/*end:yangfei added 2012.11.29*/
//SPI_DMA_Send_Init(buffer,MSD_BLOCKSIZE);
/* if ver = SD2.0 HC, sector need <<9 */
if(CardInfo.CardType != CARDTYPE_SDV2HC)
{
sector = sector << 9;
}
if(CardInfo.CardType != CARDTYPE_MMC)
{
_send_command(ACMD23, NbrOfSector, 0);
}
/* Send CMD25 : Write multiple block command */
MSD_SendCmd(CMD25, sector, 0xff);
//_spi_read_write(DUMMY_BYTE);
//_spi_read_write(DUMMY_BYTE);
if (!MSD_GetResponse(MSD_RESPONSE_NO_ERROR))
{
_spi_read_write(DUMMY_BYTE);
/* Start data write token: 0xFE */
_spi_read_write(0xFC);
/*begin:yangfei added 2012.11.28*/
DMA_Cmd(DMA1_Channel5, ENABLE);
#ifdef DMA1_IRQ
OSFlagPend(Sem_SD_DMA, (OS_FLAGS)1, OS_FLAG_WAIT_SET_ALL, 0, &err); //请求信号量集的第0位置1
DMA_ClearFlag(DMA1_FLAG_TC5);
#else
while(!DMA_GetFlagStatus(DMA1_FLAG_TC5)) ;
DMA_ClearFlag(DMA1_FLAG_TC5);
#endif
/* 2Bytes dummy CRC */
_spi_read_write(DUMMY_BYTE);
_spi_read_write(DUMMY_BYTE);
value = MSD_GetDataResponse();
if (value == MSD_DATA_OK)
{
rvalue = MSD_RESPONSE_NO_ERROR;
}
// debug("value=%x\r\n",value);
}
/* Send end of transmit token: 0xFD */
r1 = _spi_read_write(0xFD);
if(r1 == 0x00)
{
return 4;
}
/*begin:yangfei added 2012.12.07 for wait programm finished else write error*/
/* Wait all the data programm finished */
retry = 0;
while(_spi_read_write(DUMMY_BYTE) == 0x00)
{
/* Timeout return */
if(retry++ == 0x40000)
{
_card_disable();
return 3;
}
}
/* chip disable and dummy byte */
_card_disable();
_spi_read_write(DUMMY_BYTE);
/*yangfei added*/
DMA_Cmd(DMA1_Channel5, DISABLE);
return rvalue;
}
/*******************************************************************************
* Function Name : MSD_GetCIDRegister
* Description : Read the CID card register.
* Reading the contents of the CID register in SPI mode
* is a simple read-block transaction.
* Input : - MSD_cid: pointer on an CID register structure
* Output : None
* Return : The MSD Response: - MSD_RESPONSE_FAILURE: Sequence failed
* - MSD_RESPONSE_NO_ERROR: Sequence succeed
*******************************************************************************/
u8 MSD_GetCIDRegister(sMSD_CID* MSD_cid)
{
u32 i = 0;
u8 rvalue = MSD_RESPONSE_FAILURE;
u8 CID_Tab[16];
/* MSD chip select low */
spi_ss(_FLASH_NUM0,0);
/* Send CMD10 (CID register) */
MSD_SendCmd(MSD_SEND_CID, 0, 0xFF);
/* Wait for response in the R1 format (0x00 is no errors) */
if (!MSD_GetResponse(MSD_RESPONSE_NO_ERROR))
{
if (!MSD_GetResponse(MSD_START_DATA_SINGLE_BLOCK_READ))
{
/* Store CID register value on CID_Tab */
for (i = 0; i < 16; i++)
{
CID_Tab[i] = spi_send(DUMMY);
}
}
/* Get CRC bytes (not really needed by us, but required by MSD) */
spi_send(DUMMY);
spi_send(DUMMY);
/* Set response value to success */
rvalue = MSD_RESPONSE_NO_ERROR;
}
/* MSD chip select high */
spi_ss(_FLASH_NUM0,1);
/* Send dummy byte: 8 Clock pulses of delay */
spi_send(DUMMY);
/* Byte 0 */
MSD_cid->ManufacturerID = CID_Tab[0];
/* Byte 1 */
MSD_cid->OEM_AppliID = CID_Tab[1] << 8;
/* Byte 2 */
MSD_cid->OEM_AppliID |= CID_Tab[2];
/* Byte 3 */
MSD_cid->ProdName1 = CID_Tab[3] << 24;
/* Byte 4 */
MSD_cid->ProdName1 |= CID_Tab[4] << 16;
/* Byte 5 */
MSD_cid->ProdName1 |= CID_Tab[5] << 8;
/* Byte 6 */
MSD_cid->ProdName1 |= CID_Tab[6];
/* Byte 7 */
MSD_cid->ProdName2 = CID_Tab[7];
/* Byte 8 */
MSD_cid->ProdRev = CID_Tab[8];
/* Byte 9 */
MSD_cid->ProdSN = CID_Tab[9] << 24;
/* Byte 10 */
MSD_cid->ProdSN |= CID_Tab[10] << 16;
/* Byte 11 */
MSD_cid->ProdSN |= CID_Tab[11] << 8;
/* Byte 12 */
MSD_cid->ProdSN |= CID_Tab[12];
/* Byte 13 */
MSD_cid->Reserved1 |= (CID_Tab[13] & 0xF0) >> 4;
/* Byte 14 */
MSD_cid->ManufactDate = (CID_Tab[13] & 0x0F) << 8;
/* Byte 15 */
MSD_cid->ManufactDate |= CID_Tab[14];
/* Byte 16 */
MSD_cid->CRC = (CID_Tab[15] & 0xFE) >> 1;
MSD_cid->Reserved2 = 1;
/* Return the reponse */
return rvalue;
}
/*******************************************************************************
* Function Name : MSD_GetCSDRegister
* Description : Read the CSD card register.
* Reading the contents of the CSD register in SPI mode
* is a simple read-block transaction.
* Input : - MSD_csd: pointer on an SCD register structure
* Output : None
* Return : The MSD Response: - MSD_RESPONSE_FAILURE: Sequence failed
* - MSD_RESPONSE_NO_ERROR: Sequence succeed
*******************************************************************************/
u8 MSD_GetCSDRegister(sMSD_CSD* MSD_csd)
{
u32 i = 0;
u8 rvalue = MSD_RESPONSE_FAILURE;
u8 CSD_Tab[16];
/* MSD chip select low */
spi_ss(_FLASH_NUM0,0);
/* Send CMD9 (CSD register) or CMD10(CSD register) */
MSD_SendCmd(MSD_SEND_CSD, 0, 0xFF);
/* Wait for response in the R1 format (0x00 is no errors) */
if (!MSD_GetResponse(MSD_RESPONSE_NO_ERROR))
{
if (!MSD_GetResponse(MSD_START_DATA_SINGLE_BLOCK_READ))
{
for (i = 0; i < 16; i++)
{
/* Store CSD register value on CSD_Tab */
CSD_Tab[i] = spi_send(DUMMY);
}
}
/* Get CRC bytes (not really needed by us, but required by MSD) */
spi_send(DUMMY);
spi_send(DUMMY);
/* Set response value to success */
rvalue = MSD_RESPONSE_NO_ERROR;
}
/* MSD chip select high */
spi_ss(_FLASH_NUM0,1);
/* Send dummy byte: 8 Clock pulses of delay */
spi_send(DUMMY);
/* Byte 0 */
MSD_csd->CSDStruct = (CSD_Tab[0] & 0xC0) >> 6;
MSD_csd->SysSpecVersion = (CSD_Tab[0] & 0x3C) >> 2;
MSD_csd->Reserved1 = CSD_Tab[0] & 0x03;
/* Byte 1 */
MSD_csd->TAAC = CSD_Tab[1] ;
/* Byte 2 */
MSD_csd->NSAC = CSD_Tab[2];
/* Byte 3 */
MSD_csd->MaxBusClkFrec = CSD_Tab[3];
/* Byte 4 */
MSD_csd->CardComdClasses = CSD_Tab[4] << 4;
/* Byte 5 */
MSD_csd->CardComdClasses |= (CSD_Tab[5] & 0xF0) >> 4;
MSD_csd->RdBlockLen = CSD_Tab[5] & 0x0F;
/* Byte 6 */
MSD_csd->PartBlockRead = (CSD_Tab[6] & 0x80) >> 7;
MSD_csd->WrBlockMisalign = (CSD_Tab[6] & 0x40) >> 6;
MSD_csd->RdBlockMisalign = (CSD_Tab[6] & 0x20) >> 5;
MSD_csd->DSRImpl = (CSD_Tab[6] & 0x10) >> 4;
MSD_csd->Reserved2 = 0; /* Reserved */
MSD_csd->DeviceSize = (CSD_Tab[6] & 0x03) << 10;
/* Byte 7 */
MSD_csd->DeviceSize |= (CSD_Tab[7]) << 2;
/* Byte 8 */
MSD_csd->DeviceSize |= (CSD_Tab[8] & 0xC0) >> 6;
MSD_csd->MaxRdCurrentVDDMin = (CSD_Tab[8] & 0x38) >> 3;
MSD_csd->MaxRdCurrentVDDMax = (CSD_Tab[8] & 0x07);
/* Byte 9 */
MSD_csd->MaxWrCurrentVDDMin = (CSD_Tab[9] & 0xE0) >> 5;
MSD_csd->MaxWrCurrentVDDMax = (CSD_Tab[9] & 0x1C) >> 2;
MSD_csd->DeviceSizeMul = (CSD_Tab[9] & 0x03) << 1;
/* Byte 10 */
MSD_csd->DeviceSizeMul |= (CSD_Tab[10] & 0x80) >> 7;
MSD_csd->EraseGrSize = (CSD_Tab[10] & 0x7C) >> 2;
MSD_csd->EraseGrMul = (CSD_Tab[10] & 0x03) << 3;
/* Byte 11 */
MSD_csd->EraseGrMul |= (CSD_Tab[11] & 0xE0) >> 5;
MSD_csd->WrProtectGrSize = (CSD_Tab[11] & 0x1F);
/* Byte 12 */
MSD_csd->WrProtectGrEnable = (CSD_Tab[12] & 0x80) >> 7;
MSD_csd->ManDeflECC = (CSD_Tab[12] & 0x60) >> 5;
MSD_csd->WrSpeedFact = (CSD_Tab[12] & 0x1C) >> 2;
MSD_csd->MaxWrBlockLen = (CSD_Tab[12] & 0x03) << 2;
/* Byte 13 */
MSD_csd->MaxWrBlockLen |= (CSD_Tab[13] & 0xc0) >> 6;
MSD_csd->WriteBlockPaPartial = (CSD_Tab[13] & 0x20) >> 5;
MSD_csd->Reserved3 = 0;
MSD_csd->ContentProtectAppli = (CSD_Tab[13] & 0x01);
/* Byte 14 */
MSD_csd->FileFormatGrouop = (CSD_Tab[14] & 0x80) >> 7;
MSD_csd->CopyFlag = (CSD_Tab[14] & 0x40) >> 6;
MSD_csd->PermWrProtect = (CSD_Tab[14] & 0x20) >> 5;
MSD_csd->TempWrProtect = (CSD_Tab[14] & 0x10) >> 4;
MSD_csd->FileFormat = (CSD_Tab[14] & 0x0C) >> 2;
MSD_csd->ECC = (CSD_Tab[14] & 0x03);
/* Byte 15 */
MSD_csd->CRC = (CSD_Tab[15] & 0xFE) >> 1;
MSD_csd->Reserved4 = 1;
/* Return the reponse */
return rvalue;
}
