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;
}
/*******************************************************************************
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_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;
}
