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SD_Card.c
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SD_Card.c
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# include <libopencm3/stm32/rcc.h>
# include <libopencm3/stm32/gpio.h>
#include <string.h> //好像 用不了
# include <libopencm3/stm32/common/gpio_common_f234.h>
#include "sdio.h"
#include "SD_Card.h"
SDIO_InitTypeDef SDIO_InitStructure;
SDIO_CmdInitTypeDef SDIO_CmdInitStructure;
SDIO_DataInitTypeDef SDIO_DataInitStructure;
SD_Error CmdError(void);
SD_Error CmdResp7Error(void);
SD_Error CmdResp1Error(uint8_t cmd);
SD_Error CmdResp3Error(void);
SD_Error CmdResp2Error(void);
SD_Error CmdResp6Error(uint8_t cmd,uint16_t *prca);
SD_Error SDEnWideBus(uint8_t enx);
SD_Error IsCardProgramming(uint8_t *pstatus);
SD_Error FindSCR(uint16_t rca,uint32_t *pscr);
uint8_t convert_from_bytes_to_power_of_two(uint16_t NumberOfBytes);
static uint8_t CardType=SDIO_STD_CAPACITY_SD_CARD_V1_1;
static uint32_t CSD_Tab[4],CID_Tab[4],RCA=0;
static uint8_t DeviceMode=SD_DMA_MODE;
static uint8_t StopCondition=0;
volatile SD_Error TransferError=SD_OK;
volatile uint8_t TransferEnd=0;
SD_CardInfo SDCardInfo;
#pragma pack (4)
uint8_t SDIO_DATA_BUFFER[512];
#pragma pack ()
void SDIO_Register_Deinit()
{
SDIO->POWER=0x00000000;
SDIO->CLKCR=0x00000000;
SDIO->ARG=0x00000000;
SDIO->CMD=0x00000000;
SDIO->DTIMER=0x00000000;
SDIO->DLEN=0x00000000;
SDIO->DCTRL=0x00000000;
SDIO->ICR=0x00C007FF;
SDIO->MASK=0x00000000;
}
SD_Error SD_Deinit(void)
{
SD_Error errorstatus=SD_OK;
gpio_mode_setup(GPIOC, GPIO_MODE_INPUT,GPIO_PUPD_NONE,GPIO12|GPIO11|GPIO10|GPIO9|GPIO8);
gpio_set_output_options(GPIOC, GPIO_OTYPE_PP, GPIO_OSPEED_50MHZ,GPIO12|GPIO11|GPIO10|GPIO9|GPIO8);
gpio_mode_setup(GPIOD, GPIO_MODE_INPUT,GPIO_PUPD_PULLUP,GPIO2);
gpio_set_output_options(GPIOD, GPIO_OTYPE_PP, GPIO_OSPEED_50MHZ,GPIO2);
SDIO_Register_Deinit();
rcc_peripheral_disable_clock( &RCC_AHB1ENR, RCC_AHB1ENR_IOPCEN |RCC_AHB1ENR_IOPDEN | RCC_AHB1ENR_DMA2EN);
rcc_peripheral_disable_clock( &RCC_APB2ENR, RCC_APB2ENR_SDIOEN );
SD_PowerOFF();
return errorstatus;
}
SD_Error SD_Init(void)
{
SD_Error errorstatus=SD_OK;
uint8_t clkdiv=0;
rcc_peripheral_enable_clock( &RCC_AHB1ENR, RCC_AHB1ENR_IOPCEN |RCC_AHB1ENR_IOPDEN | RCC_AHB1ENR_DMA2EN);
rcc_peripheral_enable_clock( &RCC_APB2ENR, RCC_APB2ENR_SDIOEN );
rcc_peripheral_reset(&RCC_APB2RSTR, RCC_APB2RSTR_SDIORST);
gpio_mode_setup(GPIOC, GPIO_MODE_AF,GPIO_PUPD_PULLUP,GPIO12|GPIO11|GPIO10|GPIO9|GPIO8);
gpio_set_output_options(GPIOC, GPIO_OTYPE_PP, GPIO_OSPEED_50MHZ,GPIO12|GPIO11|GPIO10|GPIO9|GPIO8);
gpio_set_af(GPIOC, GPIO_AF12, GPIO12|GPIO11|GPIO10|GPIO9|GPIO8);
gpio_mode_setup(GPIOD, GPIO_MODE_AF,GPIO_PUPD_PULLUP,GPIO2);
gpio_set_output_options(GPIOD, GPIO_OTYPE_PP, GPIO_OSPEED_50MHZ,GPIO2);
gpio_set_af(GPIOD, GPIO_AF12, GPIO2);
rcc_peripheral_clear_reset(&RCC_APB2RSTR, RCC_APB2RSTR_SDIORST);
SDIO_Register_Deinit();
errorstatus=SD_PowerON();
if(errorstatus==SD_OK)errorstatus=SD_InitializeCards();
if(errorstatus==SD_OK)errorstatus=SD_GetCardInfo(&SDCardInfo);
if(errorstatus==SD_OK)errorstatus=SD_SelectDeselect((uint32_t)(SDCardInfo.RCA<<16));
if(errorstatus==SD_OK)errorstatus=SD_EnableWideBusOperation(SDIO_BusWide_4b);
if((errorstatus==SD_OK)||(SDIO_MULTIMEDIA_CARD==CardType))
{
if(SDCardInfo.CardType==SDIO_STD_CAPACITY_SD_CARD_V1_1||SDCardInfo.CardType==SDIO_STD_CAPACITY_SD_CARD_V2_0)
{
clkdiv=SDIO_TRANSFER_CLK_DIV+2;
}else clkdiv=SDIO_TRANSFER_CLK_DIV;
SDIO_Clock_Set(clkdiv);
DeviceMode=SD_POLLING_MODE;
//errorstatus=SD_SetDeviceMode();
}
return errorstatus;
}
void SDIO_Clock_Set(uint8_t clkdiv)
{
uint32_t tmpreg=SDIO->CLKCR;
tmpreg&=0XFFFFFF00;
tmpreg|=clkdiv;
SDIO->CLKCR=tmpreg;
}
SD_Error SD_PowerON(void)
{
uint8_t i=0;
SD_Error errorstatus=SD_OK;
uint32_t response=0,count=0,validvoltage=0;
uint32_t SDType=SD_STD_CAPACITY;
SDIO_InitStructure.SDIO_ClockDiv = SDIO_INIT_CLK_DIV; /* HCLK = 72MHz, SDIOCLK = 72MHz, SDIO_CK = HCLK/(178 + 2) = 400 KHz */
SDIO_InitStructure.SDIO_ClockEdge = SDIO_ClockEdge_Rising;
SDIO_InitStructure.SDIO_ClockBypass = SDIO_ClockBypass_Disable;
SDIO_InitStructure.SDIO_ClockPowerSave = SDIO_ClockPowerSave_Disable;
SDIO_InitStructure.SDIO_BusWide = SDIO_BusWide_1b;
SDIO_InitStructure.SDIO_HardwareFlowControl = SDIO_HardwareFlowControl_Disable;
SDIO_Init(&SDIO_InitStructure);
SDIO->POWER =SDIO_PowerState_ON;
SDIO->CLKCR|=1<<8;
for(i=0;i<74;i++)
{
SDIO_CmdInitStructure.SDIO_Argument = 0x0;
SDIO_CmdInitStructure.SDIO_CmdIndex = SD_CMD_GO_IDLE_STATE;
SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_No;
SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No;
SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable;
SDIO_SendCommand(&SDIO_CmdInitStructure);
errorstatus=CmdError();
if(errorstatus==SD_OK)break;
}
if(errorstatus)return errorstatus;
SDIO_CmdInitStructure.SDIO_Argument = SD_CHECK_PATTERN;
SDIO_CmdInitStructure.SDIO_CmdIndex = SDIO_SEND_IF_COND;
SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Short;
SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No;
SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable;
SDIO_SendCommand(&SDIO_CmdInitStructure);
errorstatus=CmdResp7Error();
if(errorstatus==SD_OK)
{
CardType=SDIO_STD_CAPACITY_SD_CARD_V2_0;
SDType=SD_HIGH_CAPACITY;
}
SDIO_CmdInitStructure.SDIO_Argument = 0x00;
SDIO_CmdInitStructure.SDIO_CmdIndex = SD_CMD_APP_CMD;
SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Short;
SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No;
SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable;
SDIO_SendCommand(&SDIO_CmdInitStructure);
errorstatus=CmdResp1Error(SD_CMD_APP_CMD);
if(errorstatus==SD_OK)
{
while((!validvoltage)&&(count<SD_MAX_VOLT_TRIAL))
{
SDIO_CmdInitStructure.SDIO_Argument = 0x00;
SDIO_CmdInitStructure.SDIO_CmdIndex = SD_CMD_APP_CMD;
SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Short;
SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No;
SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable;
SDIO_SendCommand(&SDIO_CmdInitStructure);
errorstatus=CmdResp1Error(SD_CMD_APP_CMD);
if(errorstatus!=SD_OK)return errorstatus;
SDIO_CmdInitStructure.SDIO_Argument = SD_VOLTAGE_WINDOW_SD | SDType;
SDIO_CmdInitStructure.SDIO_CmdIndex = SD_CMD_SD_APP_OP_COND;
SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Short;
SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No;
SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable;
SDIO_SendCommand(&SDIO_CmdInitStructure);
errorstatus=CmdResp3Error();
if(errorstatus!=SD_OK)return errorstatus;
response=SDIO->RESP1;;
validvoltage=(((response>>31)==1)?1:0);
count++;
}
if(count>=SD_MAX_VOLT_TRIAL)
{
errorstatus=SD_INVALID_VOLTRANGE;
return errorstatus;
}
if(response&=SD_HIGH_CAPACITY)
{
CardType=SDIO_HIGH_CAPACITY_SD_CARD;
}
}else
{
while((!validvoltage)&&(count<SD_MAX_VOLT_TRIAL))
{
SDIO_CmdInitStructure.SDIO_Argument = SD_VOLTAGE_WINDOW_MMC;
SDIO_CmdInitStructure.SDIO_CmdIndex = SD_CMD_SEND_OP_COND;
SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Short;
SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No;
SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable;
SDIO_SendCommand(&SDIO_CmdInitStructure);
errorstatus=CmdResp3Error();
if(errorstatus!=SD_OK)return errorstatus;
response=SDIO->RESP1;;
validvoltage=(((response>>31)==1)?1:0);
count++;
}
if(count>=SD_MAX_VOLT_TRIAL)
{
errorstatus=SD_INVALID_VOLTRANGE;
return errorstatus;
}
CardType=SDIO_MULTIMEDIA_CARD;
}
return(errorstatus);
}
SD_Error SD_PowerOFF(void)
{
SDIO_SetPowerState(SDIO_PowerState_OFF);
return SD_OK;
}
SD_Error SD_InitializeCards(void)
{
SD_Error errorstatus=SD_OK;
uint16_t rca = 0x01;
if (SDIO_GetPowerState() == SDIO_PowerState_OFF)
{
errorstatus = SD_REQUEST_NOT_APPLICABLE;
return(errorstatus);
}
if(SDIO_SECURE_DIGITAL_IO_CARD!=CardType)
{
SDIO_CmdInitStructure.SDIO_Argument = 0x0;
SDIO_CmdInitStructure.SDIO_CmdIndex = SD_CMD_ALL_SEND_CID;
SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Long;
SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No;
SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable;
SDIO_SendCommand(&SDIO_CmdInitStructure);
errorstatus=CmdResp2Error();
if(errorstatus!=SD_OK)return errorstatus;
CID_Tab[0]=SDIO->RESP1;
CID_Tab[1]=SDIO->RESP2;
CID_Tab[2]=SDIO->RESP3;
CID_Tab[3]=SDIO->RESP4;
}
if((SDIO_STD_CAPACITY_SD_CARD_V1_1==CardType)||(SDIO_STD_CAPACITY_SD_CARD_V2_0==CardType)||(SDIO_SECURE_DIGITAL_IO_COMBO_CARD==CardType)||(SDIO_HIGH_CAPACITY_SD_CARD==CardType))//ÅжϿ¨ÀàÐÍ
{
SDIO_CmdInitStructure.SDIO_Argument = 0x00;
SDIO_CmdInitStructure.SDIO_CmdIndex = SD_CMD_SET_REL_ADDR;
SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Short;
SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No;
SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable;
SDIO_SendCommand(&SDIO_CmdInitStructure);
errorstatus=CmdResp6Error(SD_CMD_SET_REL_ADDR,&rca);
if(errorstatus!=SD_OK)return errorstatus;
}
if (SDIO_MULTIMEDIA_CARD==CardType)
{
SDIO_CmdInitStructure.SDIO_Argument = (uint32_t)(rca<<16);
SDIO_CmdInitStructure.SDIO_CmdIndex = SD_CMD_SET_REL_ADDR;
SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Short;
SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No;
SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable;
SDIO_SendCommand(&SDIO_CmdInitStructure);
errorstatus=CmdResp2Error();
if(errorstatus!=SD_OK)return errorstatus;
}
if (SDIO_SECURE_DIGITAL_IO_CARD!=CardType)
{
RCA = rca;
SDIO_CmdInitStructure.SDIO_Argument = (uint32_t)(rca << 16);
SDIO_CmdInitStructure.SDIO_CmdIndex = SD_CMD_SEND_CSD;
SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Long;
SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No;
SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable;
SDIO_SendCommand(&SDIO_CmdInitStructure);
errorstatus=CmdResp2Error();
if(errorstatus!=SD_OK)return errorstatus;
CSD_Tab[0]=SDIO->RESP1;
CSD_Tab[1]=SDIO->RESP2;
CSD_Tab[2]=SDIO->RESP3;
CSD_Tab[3]=SDIO->RESP4;
}
return SD_OK;
}
SD_Error SD_GetCardInfo(SD_CardInfo *cardinfo)
{
SD_Error errorstatus=SD_OK;
uint8_t tmp=0;
cardinfo->CardType=(uint8_t)CardType;
cardinfo->RCA=(uint16_t)RCA;
tmp=(uint8_t)((CSD_Tab[0]&0xFF000000)>>24);
cardinfo->SD_csd.CSDStruct=(tmp&0xC0)>>6;
cardinfo->SD_csd.SysSpecVersion=(tmp&0x3C)>>2;
cardinfo->SD_csd.Reserved1=tmp&0x03;
tmp=(uint8_t)((CSD_Tab[0]&0x00FF0000)>>16);
cardinfo->SD_csd.TAAC=tmp;
tmp=(uint8_t)((CSD_Tab[0]&0x0000FF00)>>8);
cardinfo->SD_csd.NSAC=tmp;
tmp=(uint8_t)(CSD_Tab[0]&0x000000FF);
cardinfo->SD_csd.MaxBusClkFrec=tmp;
tmp=(uint8_t)((CSD_Tab[1]&0xFF000000)>>24);
cardinfo->SD_csd.CardComdClasses=tmp<<4;
tmp=(uint8_t)((CSD_Tab[1]&0x00FF0000)>>16);
cardinfo->SD_csd.CardComdClasses|=(tmp&0xF0)>>4;
cardinfo->SD_csd.RdBlockLen=tmp&0x0F;
tmp=(uint8_t)((CSD_Tab[1]&0x0000FF00)>>8);
cardinfo->SD_csd.PartBlockRead=(tmp&0x80)>>7;
cardinfo->SD_csd.WrBlockMisalign=(tmp&0x40)>>6;
cardinfo->SD_csd.RdBlockMisalign=(tmp&0x20)>>5;
cardinfo->SD_csd.DSRImpl=(tmp&0x10)>>4;
cardinfo->SD_csd.Reserved2=0;
if((CardType==SDIO_STD_CAPACITY_SD_CARD_V1_1)||(CardType==SDIO_STD_CAPACITY_SD_CARD_V2_0)||(SDIO_MULTIMEDIA_CARD==CardType))
{
cardinfo->SD_csd.DeviceSize=(tmp&0x03)<<10;
tmp=(uint8_t)(CSD_Tab[1]&0x000000FF);
cardinfo->SD_csd.DeviceSize|=(tmp)<<2;
tmp=(uint8_t)((CSD_Tab[2]&0xFF000000)>>24);
cardinfo->SD_csd.DeviceSize|=(tmp&0xC0)>>6;
cardinfo->SD_csd.MaxRdCurrentVDDMin=(tmp&0x38)>>3;
cardinfo->SD_csd.MaxRdCurrentVDDMax=(tmp&0x07);
tmp=(uint8_t)((CSD_Tab[2]&0x00FF0000)>>16);
cardinfo->SD_csd.MaxWrCurrentVDDMin=(tmp&0xE0)>>5;
cardinfo->SD_csd.MaxWrCurrentVDDMax=(tmp&0x1C)>>2;
cardinfo->SD_csd.DeviceSizeMul=(tmp&0x03)<<1;
tmp=(uint8_t)((CSD_Tab[2]&0x0000FF00)>>8);
cardinfo->SD_csd.DeviceSizeMul|=(tmp&0x80)>>7;
cardinfo->CardCapacity=(cardinfo->SD_csd.DeviceSize+1);
cardinfo->CardCapacity*=(1<<(cardinfo->SD_csd.DeviceSizeMul+2));
cardinfo->CardBlockSize=1<<(cardinfo->SD_csd.RdBlockLen);
cardinfo->CardCapacity*=cardinfo->CardBlockSize;
}else if(CardType==SDIO_HIGH_CAPACITY_SD_CARD)
{
tmp=(uint8_t)(CSD_Tab[1]&0x000000FF);
cardinfo->SD_csd.DeviceSize=(tmp&0x3F)<<16;
tmp=(uint8_t)((CSD_Tab[2]&0xFF000000)>>24);
cardinfo->SD_csd.DeviceSize|=(tmp<<8);
tmp=(uint8_t)((CSD_Tab[2]&0x00FF0000)>>16);
cardinfo->SD_csd.DeviceSize|=(tmp);
tmp=(uint8_t)((CSD_Tab[2]&0x0000FF00)>>8);
cardinfo->CardCapacity=(long long)(cardinfo->SD_csd.DeviceSize+1)*512*1024;
cardinfo->CardBlockSize=512;
}
cardinfo->SD_csd.EraseGrSize=(tmp&0x40)>>6;
cardinfo->SD_csd.EraseGrMul=(tmp&0x3F)<<1;
tmp=(uint8_t)(CSD_Tab[2]&0x000000FF);
cardinfo->SD_csd.EraseGrMul|=(tmp&0x80)>>7;
cardinfo->SD_csd.WrProtectGrSize=(tmp&0x7F);
tmp=(uint8_t)((CSD_Tab[3]&0xFF000000)>>24);
cardinfo->SD_csd.WrProtectGrEnable=(tmp&0x80)>>7;
cardinfo->SD_csd.ManDeflECC=(tmp&0x60)>>5;
cardinfo->SD_csd.WrSpeedFact=(tmp&0x1C)>>2;
cardinfo->SD_csd.MaxWrBlockLen=(tmp&0x03)<<2;
tmp=(uint8_t)((CSD_Tab[3]&0x00FF0000)>>16);
cardinfo->SD_csd.MaxWrBlockLen|=(tmp&0xC0)>>6;
cardinfo->SD_csd.WriteBlockPaPartial=(tmp&0x20)>>5;
cardinfo->SD_csd.Reserved3=0;
cardinfo->SD_csd.ContentProtectAppli=(tmp&0x01);
tmp=(uint8_t)((CSD_Tab[3]&0x0000FF00)>>8);
cardinfo->SD_csd.FileFormatGrouop=(tmp&0x80)>>7;
cardinfo->SD_csd.CopyFlag=(tmp&0x40)>>6;
cardinfo->SD_csd.PermWrProtect=(tmp&0x20)>>5;
cardinfo->SD_csd.TempWrProtect=(tmp&0x10)>>4;
cardinfo->SD_csd.FileFormat=(tmp&0x0C)>>2;
cardinfo->SD_csd.ECC=(tmp&0x03);
tmp=(uint8_t)(CSD_Tab[3]&0x000000FF);
cardinfo->SD_csd.CSD_CRC=(tmp&0xFE)>>1;
cardinfo->SD_csd.Reserved4=1;
tmp=(uint8_t)((CID_Tab[0]&0xFF000000)>>24);
cardinfo->SD_cid.ManufacturerID=tmp;
tmp=(uint8_t)((CID_Tab[0]&0x00FF0000)>>16);
cardinfo->SD_cid.OEM_AppliID=tmp<<8;
tmp=(uint8_t)((CID_Tab[0]&0x000000FF00)>>8);
cardinfo->SD_cid.OEM_AppliID|=tmp;
tmp=(uint8_t)(CID_Tab[0]&0x000000FF);
cardinfo->SD_cid.ProdName1=tmp<<24;
tmp=(uint8_t)((CID_Tab[1]&0xFF000000)>>24);
cardinfo->SD_cid.ProdName1|=tmp<<16;
tmp=(uint8_t)((CID_Tab[1]&0x00FF0000)>>16);
cardinfo->SD_cid.ProdName1|=tmp<<8;
tmp=(uint8_t)((CID_Tab[1]&0x0000FF00)>>8);
cardinfo->SD_cid.ProdName1|=tmp;
tmp=(uint8_t)(CID_Tab[1]&0x000000FF);
cardinfo->SD_cid.ProdName2=tmp;
tmp=(uint8_t)((CID_Tab[2]&0xFF000000)>>24);
cardinfo->SD_cid.ProdRev=tmp;
tmp=(uint8_t)((CID_Tab[2]&0x00FF0000)>>16);
cardinfo->SD_cid.ProdSN=tmp<<24;
tmp=(uint8_t)((CID_Tab[2]&0x0000FF00)>>8);
cardinfo->SD_cid.ProdSN|=tmp<<16;
tmp=(uint8_t)(CID_Tab[2]&0x000000FF);
cardinfo->SD_cid.ProdSN|=tmp<<8;
tmp=(uint8_t)((CID_Tab[3]&0xFF000000)>>24);
cardinfo->SD_cid.ProdSN|=tmp;
tmp=(uint8_t)((CID_Tab[3]&0x00FF0000)>>16);
cardinfo->SD_cid.Reserved1|=(tmp&0xF0)>>4;
cardinfo->SD_cid.ManufactDate=(tmp&0x0F)<<8;
tmp=(uint8_t)((CID_Tab[3]&0x0000FF00)>>8);
cardinfo->SD_cid.ManufactDate|=tmp;
tmp=(uint8_t)(CID_Tab[3]&0x000000FF);
cardinfo->SD_cid.CID_CRC=(tmp&0xFE)>>1;
cardinfo->SD_cid.Reserved2=1;
return errorstatus;
}
SD_Error SD_EnableWideBusOperation(uint32_t WideMode)
{
SD_Error errorstatus=SD_OK;
if (SDIO_MULTIMEDIA_CARD == CardType)
{
errorstatus = SD_UNSUPPORTED_FEATURE;
return(errorstatus);
}
else if((SDIO_STD_CAPACITY_SD_CARD_V1_1==CardType)||(SDIO_STD_CAPACITY_SD_CARD_V2_0==CardType)||(SDIO_HIGH_CAPACITY_SD_CARD==CardType))
{
if (SDIO_BusWide_8b == WideMode)
{
errorstatus = SD_UNSUPPORTED_FEATURE;
return(errorstatus);
}
else
{
errorstatus=SDEnWideBus(WideMode);
if(SD_OK==errorstatus)
{
SDIO->CLKCR&=~(3<<11);
SDIO->CLKCR|=WideMode;
SDIO->CLKCR|=0<<14;
}
}
}
return errorstatus;
}
SD_Error SD_SetDeviceMode(uint32_t Mode)
{
SD_Error errorstatus = SD_OK;
if((Mode==SD_DMA_MODE)||(Mode==SD_POLLING_MODE))DeviceMode=Mode;
else errorstatus=SD_INVALID_PARAMETER;
return errorstatus;
}
SD_Error SD_SelectDeselect(uint32_t addr)
{
SDIO_CmdInitStructure.SDIO_Argument = addr;
SDIO_CmdInitStructure.SDIO_CmdIndex = SD_CMD_SEL_DESEL_CARD;
SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Short;
SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No;
SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable;
SDIO_SendCommand(&SDIO_CmdInitStructure);
return CmdResp1Error(SD_CMD_SEL_DESEL_CARD);
}
SD_Error SD_ReadBlock(uint8_t *buf,long long addr,uint16_t blksize)
{
SD_Error errorstatus=SD_OK;
uint8_t power;
uint32_t count=0,*tempbuff=(uint32_t*)buf;
uint32_t timeout=SDIO_DATATIMEOUT;
if(NULL==buf)
return SD_INVALID_PARAMETER;
SDIO->DCTRL=0x0;
if(CardType==SDIO_HIGH_CAPACITY_SD_CARD)
{
blksize=512;
addr>>=9;
}
SDIO_DataInitStructure.SDIO_DataBlockSize= SDIO_DataBlockSize_1b ;
SDIO_DataInitStructure.SDIO_DataLength= 0 ;
SDIO_DataInitStructure.SDIO_DataTimeOut=SD_DATATIMEOUT ;
SDIO_DataInitStructure.SDIO_DPSM=SDIO_DPSM_Enable;
SDIO_DataInitStructure.SDIO_TransferDir=SDIO_TransferDir_ToCard;
SDIO_DataInitStructure.SDIO_TransferMode=SDIO_TransferMode_Block;
SDIO_DataConfig(&SDIO_DataInitStructure);
if(SDIO->RESP1&SD_CARD_LOCKED)return SD_LOCK_UNLOCK_FAILED;
if((blksize>0)&&(blksize<=2048)&&((blksize&(blksize-1))==0))
{
power=convert_from_bytes_to_power_of_two(blksize);
SDIO_CmdInitStructure.SDIO_Argument = blksize;
SDIO_CmdInitStructure.SDIO_CmdIndex = SD_CMD_SET_BLOCKLEN;
SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Short;
SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No;
SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable;
SDIO_SendCommand(&SDIO_CmdInitStructure);
errorstatus=CmdResp1Error(SD_CMD_SET_BLOCKLEN);
if(errorstatus!=SD_OK)return errorstatus;
}else return SD_INVALID_PARAMETER;
SDIO_DataInitStructure.SDIO_DataBlockSize= power<<4 ;
SDIO_DataInitStructure.SDIO_DataLength= blksize ;
SDIO_DataInitStructure.SDIO_DataTimeOut=SD_DATATIMEOUT ;
SDIO_DataInitStructure.SDIO_DPSM=SDIO_DPSM_Enable;
SDIO_DataInitStructure.SDIO_TransferDir=SDIO_TransferDir_ToSDIO;
SDIO_DataInitStructure.SDIO_TransferMode=SDIO_TransferMode_Block;
SDIO_DataConfig(&SDIO_DataInitStructure);
SDIO_CmdInitStructure.SDIO_Argument = addr;
SDIO_CmdInitStructure.SDIO_CmdIndex = SD_CMD_READ_SINGLE_BLOCK;
SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Short;
SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No;
SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable;
SDIO_SendCommand(&SDIO_CmdInitStructure);
errorstatus=CmdResp1Error(SD_CMD_READ_SINGLE_BLOCK);
if(errorstatus!=SD_OK)return errorstatus;
if(DeviceMode==SD_POLLING_MODE)
{
//////////INTX_DISABLE(); //这个只是暂时注释掉，优化时找到，关闭中断
while(!(SDIO->STA&((1<<5)|(1<<1)|(1<<3)|(1<<10)|(1<<9))))
{
if(SDIO_GetFlagStatus(SDIO_FLAG_RXFIFOHF) != RESET)
{
for(count=0;count<8;count++)
{
*(tempbuff+count)=SDIO->FIFO;
}
tempbuff+=8;
timeout=0X7FFFFF;
}else
{
if(timeout==0)return SD_DATA_TIMEOUT;
timeout--;
}
}
if(SDIO_GetFlagStatus(SDIO_FLAG_DTIMEOUT) != RESET)
{
SDIO_ClearFlag(SDIO_FLAG_DTIMEOUT);
return SD_DATA_TIMEOUT;
}else if(SDIO_GetFlagStatus(SDIO_FLAG_DCRCFAIL) != RESET)
{
SDIO_ClearFlag(SDIO_FLAG_DCRCFAIL);
return SD_DATA_CRC_FAIL;
}else if(SDIO_GetFlagStatus(SDIO_FLAG_RXOVERR) != RESET)
{
SDIO_ClearFlag(SDIO_FLAG_RXOVERR);
return SD_RX_OVERRUN;
}else if(SDIO_GetFlagStatus(SDIO_FLAG_STBITERR) != RESET)
{
SDIO_ClearFlag(SDIO_FLAG_STBITERR);
return SD_START_BIT_ERR;
}
while(SDIO_GetFlagStatus(SDIO_FLAG_RXDAVL) != RESET)
{
*tempbuff=SDIO->FIFO;
tempbuff++;
}
////INTX_ENABLE(); //暂时注释掉
SDIO_ClearFlag(SDIO_STATIC_FLAGS);
}else if(DeviceMode==SD_DMA_MODE)
{
// TransferError=SD_OK;
// StopCondition=0;
// TransferEnd=0;
// SDIO->MASK|=(1<<1)|(1<<3)|(1<<8)|(1<<5)|(1<<9);
// SDIO->DCTRL|=1<<3;
// SD_DMA_Config((uint32_t*)buf,blksize,DMA_DIR_PeripheralToMemory);
// while(((DMA2->LISR&(1<<27))==RESET)&&(TransferEnd==0)&&(TransferError==SD_OK)&&timeout)timeout--;
// if(timeout==0)return SD_DATA_TIMEOUT;
// if(TransferError!=SD_OK)errorstatus=TransferError;
}
return errorstatus;
}
#pragma pack (4)
uint32_t *tempbuff;
#pragma pack()
SD_Error SD_ReadMultiBlocks(uint8_t *buf,long long addr,uint16_t blksize,uint32_t nblks)
{
SD_Error errorstatus=SD_OK;
uint8_t power;
uint32_t count=0;
uint32_t timeout=SDIO_DATATIMEOUT;
tempbuff=(uint32_t*)buf;
SDIO->DCTRL=0x0;
if(CardType==SDIO_HIGH_CAPACITY_SD_CARD)
{
blksize=512;
addr>>=9;
}
SDIO_DataInitStructure.SDIO_DataBlockSize= 0;
SDIO_DataInitStructure.SDIO_DataLength= 0 ;
SDIO_DataInitStructure.SDIO_DataTimeOut=SD_DATATIMEOUT ;
SDIO_DataInitStructure.SDIO_DPSM=SDIO_DPSM_Enable;
SDIO_DataInitStructure.SDIO_TransferDir=SDIO_TransferDir_ToCard;
SDIO_DataInitStructure.SDIO_TransferMode=SDIO_TransferMode_Block;
SDIO_DataConfig(&SDIO_DataInitStructure);
if(SDIO->RESP1&SD_CARD_LOCKED)return SD_LOCK_UNLOCK_FAILED;
if((blksize>0)&&(blksize<=2048)&&((blksize&(blksize-1))==0))
{
power=convert_from_bytes_to_power_of_two(blksize);
SDIO_CmdInitStructure.SDIO_Argument = blksize;
SDIO_CmdInitStructure.SDIO_CmdIndex = SD_CMD_SET_BLOCKLEN;
SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Short;
SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No;
SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable;
SDIO_SendCommand(&SDIO_CmdInitStructure);
errorstatus=CmdResp1Error(SD_CMD_SET_BLOCKLEN);
if(errorstatus!=SD_OK)return errorstatus;
}else return SD_INVALID_PARAMETER;
if(nblks>1)
{
if(nblks*blksize>SD_MAX_DATA_LENGTH)return SD_INVALID_PARAMETER;
SDIO_DataInitStructure.SDIO_DataBlockSize= power<<4;
SDIO_DataInitStructure.SDIO_DataLength= nblks*blksize ;
SDIO_DataInitStructure.SDIO_DataTimeOut=SD_DATATIMEOUT ;
SDIO_DataInitStructure.SDIO_DPSM=SDIO_DPSM_Enable;
SDIO_DataInitStructure.SDIO_TransferDir=SDIO_TransferDir_ToSDIO;
SDIO_DataInitStructure.SDIO_TransferMode=SDIO_TransferMode_Block;
SDIO_DataConfig(&SDIO_DataInitStructure);
SDIO_CmdInitStructure.SDIO_Argument = addr;
SDIO_CmdInitStructure.SDIO_CmdIndex = SD_CMD_READ_MULT_BLOCK;
SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Short;
SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No;
SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable;
SDIO_SendCommand(&SDIO_CmdInitStructure);
errorstatus=CmdResp1Error(SD_CMD_READ_MULT_BLOCK);
if(errorstatus!=SD_OK)return errorstatus;
if(DeviceMode==SD_POLLING_MODE)
{
////////INTX_DISABLE();
while(!(SDIO->STA&((1<<5)|(1<<1)|(1<<3)|(1<<8)|(1<<9))))
{
if(SDIO_GetFlagStatus(SDIO_FLAG_RXFIFOHF) != RESET)
{
for(count=0;count<8;count++)
{
*(tempbuff+count)=SDIO->FIFO;
}
tempbuff+=8;
timeout=0X7FFFFF;
}else
{
if(timeout==0)return SD_DATA_TIMEOUT;
timeout--;
}
}
if(SDIO_GetFlagStatus(SDIO_FLAG_DTIMEOUT) != RESET)
{
SDIO_ClearFlag(SDIO_FLAG_DTIMEOUT);
return SD_DATA_TIMEOUT;
}else if(SDIO_GetFlagStatus(SDIO_FLAG_DCRCFAIL) != RESET)
{
SDIO_ClearFlag(SDIO_FLAG_DCRCFAIL);
return SD_DATA_CRC_FAIL;
}else if(SDIO_GetFlagStatus(SDIO_FLAG_RXOVERR) != RESET)
{
SDIO_ClearFlag(SDIO_FLAG_RXOVERR);
return SD_RX_OVERRUN;
}else if(SDIO_GetFlagStatus(SDIO_FLAG_STBITERR) != RESET)
{
SDIO_ClearFlag(SDIO_FLAG_STBITERR);
return SD_START_BIT_ERR;
}
while(SDIO_GetFlagStatus(SDIO_FLAG_RXDAVL) != RESET)
{
*tempbuff=SDIO->FIFO;
tempbuff++;
}
if(SDIO_GetFlagStatus(SDIO_FLAG_DATAEND) != RESET)
{
if((SDIO_STD_CAPACITY_SD_CARD_V1_1==CardType)||(SDIO_STD_CAPACITY_SD_CARD_V2_0==CardType)||(SDIO_HIGH_CAPACITY_SD_CARD==CardType))
{
SDIO_CmdInitStructure.SDIO_Argument = 0;
SDIO_CmdInitStructure.SDIO_CmdIndex = SD_CMD_STOP_TRANSMISSION;
SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Short;
SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No;
SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable;
SDIO_SendCommand(&SDIO_CmdInitStructure);
errorstatus=CmdResp1Error(SD_CMD_STOP_TRANSMISSION);
if(errorstatus!=SD_OK)return errorstatus;
}
}
//INTX_ENABLE();
SDIO_ClearFlag(SDIO_STATIC_FLAGS);
}else if(DeviceMode==SD_DMA_MODE)
{
// TransferError=SD_OK;
// StopCondition=1;
// TransferEnd=0;
// SDIO->MASK|=(1<<1)|(1<<3)|(1<<8)|(1<<5)|(1<<9);
// SDIO->DCTRL|=1<<3;
// //由于不会使用DMA模式，故注释掉。
// // SD_DMA_Config((uint32_t*)buf,nblks*blksize,DMA_DIR_PeripheralToMemory);
// // while(((DMA2->LISR&(1<<27))==RESET)&&timeout)timeout--;
// if(timeout==0)return SD_DATA_TIMEOUT;
// while((TransferEnd==0)&&(TransferError==SD_OK));
// if(TransferError!=SD_OK)errorstatus=TransferError;
}
}
return errorstatus;
}
SD_Error SD_WriteBlock(uint8_t *buf,long long addr, uint16_t blksize)
{
SD_Error errorstatus = SD_OK;
uint8_t power=0,cardstate=0;
uint32_t timeout=0,bytestransferred=0;
uint32_t cardstatus=0,count=0,restwords=0;
uint32_t tlen=blksize;
uint32_t*tempbuff=(uint32_t*)buf;
if(buf==NULL)return SD_INVALID_PARAMETER;
SDIO->DCTRL=0x0;
SDIO_DataInitStructure.SDIO_DataBlockSize= 0;
SDIO_DataInitStructure.SDIO_DataLength= 0 ;
SDIO_DataInitStructure.SDIO_DataTimeOut=SD_DATATIMEOUT ;
SDIO_DataInitStructure.SDIO_DPSM=SDIO_DPSM_Enable;
SDIO_DataInitStructure.SDIO_TransferDir=SDIO_TransferDir_ToCard;
SDIO_DataInitStructure.SDIO_TransferMode=SDIO_TransferMode_Block;
SDIO_DataConfig(&SDIO_DataInitStructure);
if(SDIO->RESP1&SD_CARD_LOCKED)return SD_LOCK_UNLOCK_FAILED;
if(CardType==SDIO_HIGH_CAPACITY_SD_CARD)
{
blksize=512;
addr>>=9;
}
if((blksize>0)&&(blksize<=2048)&&((blksize&(blksize-1))==0))
{
power=convert_from_bytes_to_power_of_two(blksize);
SDIO_CmdInitStructure.SDIO_Argument = blksize;
SDIO_CmdInitStructure.SDIO_CmdIndex = SD_CMD_SET_BLOCKLEN;
SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Short;
SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No;
SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable;
SDIO_SendCommand(&SDIO_CmdInitStructure);
errorstatus=CmdResp1Error(SD_CMD_SET_BLOCKLEN);
if(errorstatus!=SD_OK)return errorstatus;
}else return SD_INVALID_PARAMETER;
SDIO_CmdInitStructure.SDIO_Argument = (uint32_t)RCA<<16;
SDIO_CmdInitStructure.SDIO_CmdIndex = SD_CMD_SEND_STATUS;
SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Short;
SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No;
SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable;
SDIO_SendCommand(&SDIO_CmdInitStructure);
errorstatus=CmdResp1Error(SD_CMD_SEND_STATUS);
if(errorstatus!=SD_OK)return errorstatus;
cardstatus=SDIO->RESP1;
timeout=SD_DATATIMEOUT;
while(((cardstatus&0x00000100)==0)&&(timeout>0))
{
timeout--;
SDIO_CmdInitStructure.SDIO_Argument = (uint32_t)RCA<<16;
SDIO_CmdInitStructure.SDIO_CmdIndex = SD_CMD_SEND_STATUS;
SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Short;
SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No;
SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable;
SDIO_SendCommand(&SDIO_CmdInitStructure);
errorstatus=CmdResp1Error(SD_CMD_SEND_STATUS);
if(errorstatus!=SD_OK)return errorstatus;
cardstatus=SDIO->RESP1;
}
if(timeout==0)return SD_ERROR;
SDIO_CmdInitStructure.SDIO_Argument = addr;
SDIO_CmdInitStructure.SDIO_CmdIndex = SD_CMD_WRITE_SINGLE_BLOCK;
SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Short;
SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No;
SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable;
SDIO_SendCommand(&SDIO_CmdInitStructure);
errorstatus=CmdResp1Error(SD_CMD_WRITE_SINGLE_BLOCK);
if(errorstatus!=SD_OK)return errorstatus;
StopCondition=0;
SDIO_DataInitStructure.SDIO_DataBlockSize= power<<4;
SDIO_DataInitStructure.SDIO_DataLength= blksize ;
SDIO_DataInitStructure.SDIO_DataTimeOut=SD_DATATIMEOUT ;
SDIO_DataInitStructure.SDIO_DPSM=SDIO_DPSM_Enable;
SDIO_DataInitStructure.SDIO_TransferDir=SDIO_TransferDir_ToCard;
SDIO_DataInitStructure.SDIO_TransferMode=SDIO_TransferMode_Block;
SDIO_DataConfig(&SDIO_DataInitStructure);
timeout=SDIO_DATATIMEOUT;
if (DeviceMode == SD_POLLING_MODE)
{
////////INTX_DISABLE();
while(!(SDIO->STA&((1<<10)|(1<<4)|(1<<1)|(1<<3)|(1<<9))))
{
if(SDIO_GetFlagStatus(SDIO_FLAG_TXFIFOHE) != RESET)
{
if((tlen-bytestransferred)<SD_HALFFIFOBYTES)
{
restwords=((tlen-bytestransferred)%4==0)?((tlen-bytestransferred)/4):((tlen-bytestransferred)/4+1);
for(count=0;count<restwords;count++,tempbuff++,bytestransferred+=4)
{
SDIO->FIFO=*tempbuff;
}
}else
{
for(count=0;count<8;count++)
{
SDIO->FIFO=*(tempbuff+count);
}
tempbuff+=8;
bytestransferred+=32;
}
timeout=0X3FFFFFFF;
}else
{
if(timeout==0)return SD_DATA_TIMEOUT;
timeout--;
}
}
if(SDIO_GetFlagStatus(SDIO_FLAG_DTIMEOUT) != RESET)
{
SDIO_ClearFlag(SDIO_FLAG_DTIMEOUT);
return SD_DATA_TIMEOUT;
}else if(SDIO_GetFlagStatus(SDIO_FLAG_DCRCFAIL) != RESET)
{
SDIO_ClearFlag(SDIO_FLAG_DCRCFAIL);
return SD_DATA_CRC_FAIL;
}else if(SDIO_GetFlagStatus(SDIO_FLAG_TXUNDERR) != RESET)
{
SDIO_ClearFlag(SDIO_FLAG_TXUNDERR);
return SD_TX_UNDERRUN;
}else if(SDIO_GetFlagStatus(SDIO_FLAG_STBITERR) != RESET)
{
SDIO_ClearFlag(SDIO_FLAG_STBITERR);
return SD_START_BIT_ERR;
}
//INTX_ENABLE();
SDIO_ClearFlag(SDIO_STATIC_FLAGS);
}else if(DeviceMode==SD_DMA_MODE)
{
// TransferError=SD_OK;
// StopCondition=0;
// TransferEnd=0;
// SDIO->MASK|=(1<<1)|(1<<3)|(1<<8)|(1<<4)|(1<<9);
// SD_DMA_Config((uint32_t*)buf,blksize,DMA_DIR_MemoryToPeripheral);
// SDIO->DCTRL|=1<<3;
// while(((DMA2->LISR&(1<<27))==RESET)&&timeout)timeout--;
// if(timeout==0)
// {
// SD_Init();
// return SD_DATA_TIMEOUT;
// }
// timeout=SDIO_DATATIMEOUT;
// while((TransferEnd==0)&&(TransferError==SD_OK)&&timeout)timeout--;
// if(timeout==0)return SD_DATA_TIMEOUT;
// if(TransferError!=SD_OK)return TransferError;
}
SDIO_ClearFlag(SDIO_STATIC_FLAGS);
errorstatus=IsCardProgramming(&cardstate);
while((errorstatus==SD_OK)&&((cardstate==SD_CARD_PROGRAMMING)||(cardstate==SD_CARD_RECEIVING)))
{
errorstatus=IsCardProgramming(&cardstate);
}
return errorstatus;
}
SD_Error SD_WriteMultiBlocks(uint8_t *buf,long long addr,uint16_t blksize,uint32_t nblks)
{
SD_Error errorstatus = SD_OK;
uint8_t power = 0, cardstate = 0;
uint32_t timeout=0,bytestransferred=0;
uint32_t count = 0, restwords = 0;
uint32_t tlen=nblks*blksize;
uint32_t *tempbuff = (uint32_t*)buf;
if(buf==NULL)return SD_INVALID_PARAMETER;
SDIO->DCTRL=0x0;
SDIO_DataInitStructure.SDIO_DataBlockSize= 0;
SDIO_DataInitStructure.SDIO_DataLength= 0 ;
SDIO_DataInitStructure.SDIO_DataTimeOut=SD_DATATIMEOUT ;
SDIO_DataInitStructure.SDIO_DPSM=SDIO_DPSM_Enable;
SDIO_DataInitStructure.SDIO_TransferDir=SDIO_TransferDir_ToCard;
SDIO_DataInitStructure.SDIO_TransferMode=SDIO_TransferMode_Block;
SDIO_DataConfig(&SDIO_DataInitStructure);
if(SDIO->RESP1&SD_CARD_LOCKED)return SD_LOCK_UNLOCK_FAILED;
if(CardType==SDIO_HIGH_CAPACITY_SD_CARD)
{
blksize=512;
addr>>=9;
}
if((blksize>0)&&(blksize<=2048)&&((blksize&(blksize-1))==0))
{
power=convert_from_bytes_to_power_of_two(blksize);
SDIO_CmdInitStructure.SDIO_Argument = blksize;
SDIO_CmdInitStructure.SDIO_CmdIndex = SD_CMD_SET_BLOCKLEN;
SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Short;
SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No;
SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable;
SDIO_SendCommand(&SDIO_CmdInitStructure);
errorstatus=CmdResp1Error(SD_CMD_SET_BLOCKLEN);
if(errorstatus!=SD_OK)return errorstatus;
}else return SD_INVALID_PARAMETER;
if(nblks>1)
{
if(nblks*blksize>SD_MAX_DATA_LENGTH)return SD_INVALID_PARAMETER;
if((SDIO_STD_CAPACITY_SD_CARD_V1_1==CardType)||(SDIO_STD_CAPACITY_SD_CARD_V2_0==CardType)||(SDIO_HIGH_CAPACITY_SD_CARD==CardType))
{
SDIO_CmdInitStructure.SDIO_Argument = (uint32_t)RCA<<16;
SDIO_CmdInitStructure.SDIO_CmdIndex = SD_CMD_APP_CMD;
SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Short;