stm32303c_eval_sd.c File Reference

This file provides a set of functions needed to manage the SPI SD Card memory mounted on STM32303C-EVAL board. It implements a high level communication layer for read and write from/to this memory. The needed STM32F30x hardware resources (SPI and GPIO) are defined in stm32303c_eval.h file, and the initialization is performed in SD_LowLevel_Init() function declared in stm32303c_eval.c file. You can easily tailor this driver to any other development board, by just adapting the defines for hardware resources and SD_LowLevel_Init() function. More...

#include "stm32303c_eval_sd.h"

Go to the source code of this file.

Defines
#define	SD_DUMMY_BYTE   0xFF
#define	SD_NO_RESPONSE_EXPECTED   0x80
Functions
static uint8_t	SD_GetCIDRegister (SD_CID *Cid)
	Read the CID card register.
static uint8_t	SD_GetCSDRegister (SD_CSD *Csd)
	Read the CSD card register.
static SD_Info	SD_GetDataResponse (void)
	Get SD card data response.
static uint8_t	SD_GoIdleState (void)
	Put SD in Idle state.
static uint8_t	SD_SendCmd (uint8_t Cmd, uint32_t Arg, uint8_t Crc, uint8_t Response)
	Send 5 bytes command to the SD card and get response.
uint8_t	BSP_SD_Init (void)
	Initializes the SD/SD communication.
uint8_t	BSP_SD_IsDetected (void)
	Detects if SD card is correctly plugged in the memory slot or not.
uint8_t	BSP_SD_GetCardInfo (SD_CardInfo *pCardInfo)
	Returns information about specific card.
uint8_t	BSP_SD_ReadBlocks (uint32_t *p32Data, uint64_t ReadAddr, uint16_t BlockSize, uint32_t NumberOfBlocks)
	Reads block(s) from a specified address in an SD card, in polling mode.
uint8_t	BSP_SD_WriteBlocks (uint32_t *p32Data, uint64_t WriteAddr, uint16_t BlockSize, uint32_t NumberOfBlocks)
	Writes block(s) to a specified address in an SD card, in polling mode.
uint8_t	BSP_SD_GetStatus (void)
	Returns the SD status.
uint8_t	BSP_SD_Erase (uint32_t StartAddr, uint32_t EndAddr)
	Erases the specified memory area of the given SD card.
Variables
__IO uint8_t	SdStatus = SD_PRESENT

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Detailed Description

This file provides a set of functions needed to manage the SPI SD Card memory mounted on STM32303C-EVAL board. It implements a high level communication layer for read and write from/to this memory. The needed STM32F30x hardware resources (SPI and GPIO) are defined in stm32303c_eval.h file, and the initialization is performed in SD_LowLevel_Init() function declared in stm32303c_eval.c file. You can easily tailor this driver to any other development board, by just adapting the defines for hardware resources and SD_LowLevel_Init() function.

Author:

MCD Application Team +-------------------------------------------------------+ | Pin assignment | +-------------------------+---------------+-------------+ | STM32F30x SPI Pins | SD | Pin | +-------------------------+---------------+-------------+ | SD_SPI_CS_PIN | ChipSelect | 1 | | SD_SPI_MOSI_PIN / MOSI | DataIn | 2 | | | GND | 3 (0 V) | | | VDD | 4 (3.3 V)| | SD_SPI_SCK_PIN / SCLK | Clock | 5 | | | GND | 6 (0 V) | | SD_SPI_MISO_PIN / MISO | DataOut | 7 | +-------------------------+---------------+-------------+

Attention:

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Definition in file stm32303c_eval_sd.c.