文件列表:

SDIO\uSDCard\main.c (11008, 2011-10-03)
SDIO\uSDCard\MDK-ARM\JLinkLog.txt (262131, 2012-05-15)
SDIO\uSDCard\MDK-ARM\JLinkSettings.ini (573, 2012-05-14)
SDIO\uSDCard\MDK-ARM\Project.uvopt (25619, 2012-05-15)
SDIO\uSDCard\MDK-ARM\Project.uvproj (23601, 2012-05-15)
SDIO\uSDCard\stm324xg_eval_sdio_sd.c (88941, 2011-10-03)
SDIO\uSDCard\stm324xg_eval_sdio_sd.h (18310, 2011-10-03)
SDIO\uSDCard\stm32f4xx_conf.h (3622, 2011-10-03)
SDIO\uSDCard\stm32f4xx_it.c (5223, 2011-10-03)
SDIO\uSDCard\stm32f4xx_it.h (2016, 2011-10-03)
SDIO\uSDCard\system_stm32f4xx.c (21728, 2011-10-03)
SDIO\uSDCard\MDK-ARM (0, 2013-04-08)
SDIO\uSDCard (0, 2013-04-08)
SDIO (0, 2013-04-08)

This example provides a basic example of how to use the SDIO firmware library and an associate driver to perform read/write operations on the SD Card memory (SD Card V1.0, V1.1, V2.0 and SDHC (High Capacity) protocol)that could be mounted on the STM324xG_EVAL board. The example provides different SD Card transfer states and operations and here below a description of each step: - First the SDIO peripheral and SD Card are initialized using the SD_Init() function: - Configure the SDIO according to the desired SDIO_CK clock frequency. - Reset the SD Card - Identify the SD Card - Initializes the SD Card - Get the SD Card Info - Select the SD Card - Enable the Wide Bus mode (4-bit data) - SD Card Erase Operation - Starts an Erase operation: Erase the corresponding blocks using the SD_Erase() function - Read the Erased blocks using the SD_ReadMultiBlocks() function - Test if the corresponding Blocks are well erased: check if the EraseStatus variable is equal to PASSED. If the erase operation is passed LED1 is turned ON. - SD Card Single Block Operation - Starts a Write operation: Write a single Block using the SD_WriteBlock() function - Read a single Block using the SD_ReadBlock() function - Compare the written Block and the read one: check if the TransferStatus1 variable is equal to PASSED. If the Single Block Read/write operation is passed LED2 is turned ON. - SD Card Multiple Block Operation - Starts a Multiple Write operation: Write a multi Blocks using the SD_WriteMultiBlocks() function. - Read a multiple Blocks using the SD_ReadMultiBlocks() function - Compare the written Blocks and the read one: check if the TransferStatus2 variable is equal to PASSED. If the Multiple Blocks Read/Write operation is passed LED3 is turned ON. All data transfers are made by DMA. At each operation, the SD Card presence and status is checked using the SD_GetStatus() function and a global variable "Status" storing the results of the last operation. SD Card Operations and Written/Read data correctness is signaled by LED lightening and though as follow: - If the Erase operation is PASSED then LED1 ON else the LED4 is ON and LED1 is OFF - If the Single Block Write/Read operation is PASSED then LED2 ON else the LED4 is ON and LED2 is OFF - If the Multi Blocks Write/Read operation is PASSED then LED3 ON else the LED4 is ON and LED3 is OFF - Any SD Card operation including the SD Initialization error is signaled by LED4 ON.

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