急求STM32F207中SD卡读写失败的问题，怎么解决。

dop101 · 发表于 2015-11-20 16:18:01

之前换个几个卡了。不是读写成功擦除失败就是擦除成功读写失败。刚有买了个32G的闪迪卡，又出现了读写失败。擦除成功。不可能是真的是卡的问题。还是程序的问题。我把真个工程附件都添加进去了。大神帮看看啊。
用的是下面的代码。可以说就是官方的例程。
/* Initialize LEDs available on STM322xG-EVAL board *************************/
STM_EVAL_LEDInit(LED1);
STM_EVAL_LEDInit(LED2);
STM_EVAL_LEDInit(LED3);
STM_EVAL_LEDInit(LED4);

/* Interrupt Config */
NVIC_Configuration();

/*------------------------------ SD Init ---------------------------------- */
if((Status = SD_Init()) != SD_OK)
{
STM_EVAL_LEDOn(LED4);
}

while((Status == SD_OK) && (SDCardOperation != SD_OPERATION_END) && (SD_Detect()== SD_PRESENT))
{
switch(SDCardOperation)
{
/*-------------------------- SD Erase Test ---------------------------- */
case (SD_OPERATION_ERASE):
{
SD_EraseTest();
SDCardOperation = SD_OPERATION_BLOCK;
break;
}
/*-------------------------- SD Single Block Test --------------------- */
case (SD_OPERATION_BLOCK):
{
SD_SingleBlockTest();
SDCardOperation = SD_OPERATION_MULTI_BLOCK;
break;
}
/*-------------------------- SD Multi Blocks Test --------------------- */
case (SD_OPERATION_MULTI_BLOCK):
{
SD_MultiBlockTest();
SDCardOperation = SD_OPERATION_END;
break;
}
}
}

/* Infinite loop */
while (1)
{}
}

/**
* @brief Configures SDIO IRQ channel.
* @param None
* @retval None
*/
void NVIC_Configuration(void)
{
NVIC_InitTypeDef NVIC_InitStructure;

/* Configure the NVIC Preemption Priority Bits */
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_1);

NVIC_InitStructure.NVIC_IRQChannel = SDIO_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
}

/**
* @brief Tests the SD card erase operation.
* @param None
* @retval None
*/
void SD_EraseTest(void)
{
/*------------------- Block Erase ------------------------------------------*/
if (Status == SD_OK)
{
/* Erase NumberOfBlocks Blocks of WRITE_BL_LEN(512 Bytes) */
Status = SD_Erase(0x00, (BLOCK_SIZE * NUMBER_OF_BLOCKS));
}

if (Status == SD_OK)
{
Status = SD_ReadMultiBlocks(Buffer_MultiBlock_Rx, 0x00, BLOCK_SIZE, NUMBER_OF_BLOCKS);

/* Check if the Transfer is finished */
Status = SD_WaitReadOperation();

/* Wait until end of DMA transfer */
while(SD_GetStatus() != SD_TRANSFER_OK);
}

/* Check the correctness of erased blocks */
if (Status == SD_OK)
{
EraseStatus = eBuffercmp(Buffer_MultiBlock_Rx, MULTI_BUFFER_SIZE);
}

if(EraseStatus == PASSED)
{
STM_EVAL_LEDOn(LED1);
}
else
{
STM_EVAL_LEDOff(LED1);
STM_EVAL_LEDOn(LED4);
}
}

/**
* @brief Tests the SD card Single Blocks operations.
* @param None
* @retval None
*/
void SD_SingleBlockTest(void)
{
/*------------------- Block Read/Write --------------------------*/
/* Fill the buffer to send */
Fill_Buffer(Buffer_Block_Tx, BLOCK_SIZE, 0x320F);

if (Status == SD_OK)
{
/* Write block of 512 bytes on address 0 */

Status = SD_WriteBlock(Buffer_Block_Tx, 0x00, BLOCK_SIZE);

/* Check if the Transfer is finished */
Status = SD_WaitWriteOperation();
while(SD_GetStatus() != SD_TRANSFER_OK);
}

if (Status == SD_OK)
{
/* Read block of 512 bytes from address 0 */
Status = SD_ReadBlock(Buffer_Block_Rx, 0x00, BLOCK_SIZE);
/* Check if the Transfer is finished */
Status = SD_WaitReadOperation();
while(SD_GetStatus() != SD_TRANSFER_OK);
}

/* Check the correctness of written data */
if (Status == SD_OK)
{
TransferStatus1 = Buffercmp(Buffer_Block_Tx, Buffer_Block_Rx, BLOCK_SIZE);
}

if(TransferStatus1 == PASSED)
{
STM_EVAL_LEDOn(LED2);
}
else
{
STM_EVAL_LEDOff(LED2);
STM_EVAL_LEDOn(LED4);
}
}

/**
* @brief Tests the SD card Multiple Blocks operations.
* @param None
* @retval None
*/
void SD_MultiBlockTest(void)
{
/*--------------- Multiple Block Read/Write ---------------------*/
/* Fill the buffer to send */
Fill_Buffer(Buffer_MultiBlock_Tx, MULTI_BUFFER_SIZE, 0x0);

if (Status == SD_OK)
{
/* Write multiple block of many bytes on address 0 */
Status = SD_WriteMultiBlocks(Buffer_MultiBlock_Tx, 0x00, BLOCK_SIZE, NUMBER_OF_BLOCKS);
/* Check if the Transfer is finished */
Status = SD_WaitWriteOperation();
while(SD_GetStatus() != SD_TRANSFER_OK);
}

if (Status == SD_OK)
{
/* Read block of many bytes from address 0 */
Status = SD_ReadMultiBlocks(Buffer_MultiBlock_Rx, 0x00, BLOCK_SIZE, NUMBER_OF_BLOCKS);
/* Check if the Transfer is finished */
Status = SD_WaitReadOperation();
while(SD_GetStatus() != SD_TRANSFER_OK);
}

/* Check the correctness of written data */
if (Status == SD_OK)
{
TransferStatus2 = Buffercmp(Buffer_MultiBlock_Tx, Buffer_MultiBlock_Rx, MULTI_BUFFER_SIZE);
}

if(TransferStatus2 == PASSED)
{
STM_EVAL_LEDOn(LED3);
}
else
{
STM_EVAL_LEDOff(LED3);
STM_EVAL_LEDOn(LED4);
}
}

/**
* @brief Compares two buffers.
* @param pBuffer1, pBuffer2: buffers to be compared.
* @param BufferLength: buffer's length
* @retval PASSED: pBuffer1 identical to pBuffer2
* FAILED: pBuffer1 differs from pBuffer2
*/
TestStatus Buffercmp(uint8_t* pBuffer1, uint8_t* pBuffer2, uint32_t BufferLength)
{
while (BufferLength--)
{
if (*pBuffer1 != *pBuffer2)
{
return FAILED;
}

pBuffer1++;
pBuffer2++;
}

return PASSED;
}