WILLY BAYOT
/
stm32_adafruit
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stm32_adafruit_sd.c@0:4db361f2e6d5, 2015-01-04 (annotated)
- Committer:
- willybayot
- Date:
- Sun Jan 04 13:25:59 2015 +0000
- Revision:
- 0:4db361f2e6d5
ADAFRUIT revision
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| willybayot | 0:4db361f2e6d5 | 1 | /** |
| willybayot | 0:4db361f2e6d5 | 2 | ****************************************************************************** |
| willybayot | 0:4db361f2e6d5 | 3 | * @file stm32_adafruit_sd.c |
| willybayot | 0:4db361f2e6d5 | 4 | * @author MCD Application Team |
| willybayot | 0:4db361f2e6d5 | 5 | * @version V1.0.0 |
| willybayot | 0:4db361f2e6d5 | 6 | * @date 22-April-2014 |
| willybayot | 0:4db361f2e6d5 | 7 | * @brief This file provides a set of functions needed to manage the SD card |
| willybayot | 0:4db361f2e6d5 | 8 | * mounted on the Adafruit 1.8" TFT LCD shield (reference ID 802), |
| willybayot | 0:4db361f2e6d5 | 9 | * that is used with the STM32 Nucleo board through SPI interface. |
| willybayot | 0:4db361f2e6d5 | 10 | * It implements a high level communication layer for read and write |
| willybayot | 0:4db361f2e6d5 | 11 | * from/to this memory. The needed STM32XXxx hardware resources (SPI and |
| willybayot | 0:4db361f2e6d5 | 12 | * GPIO) are defined in stm32XXxx_nucleo.h file, and the initialization is |
| willybayot | 0:4db361f2e6d5 | 13 | * performed in SD_IO_Init() function declared in stm32XXxx_nucleo.c |
| willybayot | 0:4db361f2e6d5 | 14 | * file. |
| willybayot | 0:4db361f2e6d5 | 15 | * You can easily tailor this driver to any other development board, |
| willybayot | 0:4db361f2e6d5 | 16 | * by just adapting the defines for hardware resources and |
| willybayot | 0:4db361f2e6d5 | 17 | * SD_IO_Init() function. |
| willybayot | 0:4db361f2e6d5 | 18 | * |
| willybayot | 0:4db361f2e6d5 | 19 | * +-------------------------------------------------------+ |
| willybayot | 0:4db361f2e6d5 | 20 | * | Pin assignment | |
| willybayot | 0:4db361f2e6d5 | 21 | * +-------------------------+---------------+-------------+ |
| willybayot | 0:4db361f2e6d5 | 22 | * | STM32XXxx SPI Pins | SD | Pin | |
| willybayot | 0:4db361f2e6d5 | 23 | * +-------------------------+---------------+-------------+ |
| willybayot | 0:4db361f2e6d5 | 24 | * | SD_SPI_CS_PIN | ChipSelect | 1 | |
| willybayot | 0:4db361f2e6d5 | 25 | * | SD_SPI_MOSI_PIN / MOSI | DataIn | 2 | |
| willybayot | 0:4db361f2e6d5 | 26 | * | | GND | 3 (0 V) | |
| willybayot | 0:4db361f2e6d5 | 27 | * | | VDD | 4 (3.3 V)| |
| willybayot | 0:4db361f2e6d5 | 28 | * | SD_SPI_SCK_PIN / SCLK | Clock | 5 | |
| willybayot | 0:4db361f2e6d5 | 29 | * | | GND | 6 (0 V) | |
| willybayot | 0:4db361f2e6d5 | 30 | * | SD_SPI_MISO_PIN / MISO | DataOut | 7 | |
| willybayot | 0:4db361f2e6d5 | 31 | * +-------------------------+---------------+-------------+ |
| willybayot | 0:4db361f2e6d5 | 32 | ****************************************************************************** |
| willybayot | 0:4db361f2e6d5 | 33 | * @attention |
| willybayot | 0:4db361f2e6d5 | 34 | * |
| willybayot | 0:4db361f2e6d5 | 35 | * <h2><center>© COPYRIGHT(c) 2014 STMicroelectronics</center></h2> |
| willybayot | 0:4db361f2e6d5 | 36 | * |
| willybayot | 0:4db361f2e6d5 | 37 | * Redistribution and use in source and binary forms, with or without modification, |
| willybayot | 0:4db361f2e6d5 | 38 | * are permitted provided that the following conditions are met: |
| willybayot | 0:4db361f2e6d5 | 39 | * 1. Redistributions of source code must retain the above copyright notice, |
| willybayot | 0:4db361f2e6d5 | 40 | * this list of conditions and the following disclaimer. |
| willybayot | 0:4db361f2e6d5 | 41 | * 2. Redistributions in binary form must reproduce the above copyright notice, |
| willybayot | 0:4db361f2e6d5 | 42 | * this list of conditions and the following disclaimer in the documentation |
| willybayot | 0:4db361f2e6d5 | 43 | * and/or other materials provided with the distribution. |
| willybayot | 0:4db361f2e6d5 | 44 | * 3. Neither the name of STMicroelectronics nor the names of its contributors |
| willybayot | 0:4db361f2e6d5 | 45 | * may be used to endorse or promote products derived from this software |
| willybayot | 0:4db361f2e6d5 | 46 | * without specific prior written permission. |
| willybayot | 0:4db361f2e6d5 | 47 | * |
| willybayot | 0:4db361f2e6d5 | 48 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
| willybayot | 0:4db361f2e6d5 | 49 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| willybayot | 0:4db361f2e6d5 | 50 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| willybayot | 0:4db361f2e6d5 | 51 | * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE |
| willybayot | 0:4db361f2e6d5 | 52 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| willybayot | 0:4db361f2e6d5 | 53 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
| willybayot | 0:4db361f2e6d5 | 54 | * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
| willybayot | 0:4db361f2e6d5 | 55 | * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| willybayot | 0:4db361f2e6d5 | 56 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| willybayot | 0:4db361f2e6d5 | 57 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| willybayot | 0:4db361f2e6d5 | 58 | * |
| willybayot | 0:4db361f2e6d5 | 59 | ****************************************************************************** |
| willybayot | 0:4db361f2e6d5 | 60 | */ |
| willybayot | 0:4db361f2e6d5 | 61 | |
| willybayot | 0:4db361f2e6d5 | 62 | /* File Info : ----------------------------------------------------------------- |
| willybayot | 0:4db361f2e6d5 | 63 | User NOTES |
| willybayot | 0:4db361f2e6d5 | 64 | 1. How to use this driver: |
| willybayot | 0:4db361f2e6d5 | 65 | -------------------------- |
| willybayot | 0:4db361f2e6d5 | 66 | - This driver does not need a specific component driver for the micro SD device |
| willybayot | 0:4db361f2e6d5 | 67 | to be included with. |
| willybayot | 0:4db361f2e6d5 | 68 | |
| willybayot | 0:4db361f2e6d5 | 69 | 2. Driver description: |
| willybayot | 0:4db361f2e6d5 | 70 | --------------------- |
| willybayot | 0:4db361f2e6d5 | 71 | + Initialization steps: |
| willybayot | 0:4db361f2e6d5 | 72 | o Initialize the micro SD card using the BSP_SD_Init() function. |
| willybayot | 0:4db361f2e6d5 | 73 | o Cheking the SD card presence is not managed because SD detection pin is |
| willybayot | 0:4db361f2e6d5 | 74 | not physically mapped on the Adafruit shield. |
| willybayot | 0:4db361f2e6d5 | 75 | o The function BSP_SD_GetCardInfo() is used to get the micro SD card information |
| willybayot | 0:4db361f2e6d5 | 76 | which is stored in the structure "SD_CardInfo". |
| willybayot | 0:4db361f2e6d5 | 77 | |
| willybayot | 0:4db361f2e6d5 | 78 | + Micro SD card operations |
| willybayot | 0:4db361f2e6d5 | 79 | o The micro SD card can be accessed with read/write block(s) operations once |
| willybayot | 0:4db361f2e6d5 | 80 | it is ready for access. The access can be performed in polling |
| willybayot | 0:4db361f2e6d5 | 81 | mode by calling the functions BSP_SD_ReadBlocks()/BSP_SD_WriteBlocks() |
| willybayot | 0:4db361f2e6d5 | 82 | |
| willybayot | 0:4db361f2e6d5 | 83 | o The SD erase block(s) is performed using the function BSP_SD_Erase() with |
| willybayot | 0:4db361f2e6d5 | 84 | specifying the number of blocks to erase. |
| willybayot | 0:4db361f2e6d5 | 85 | o The SD runtime status is returned when calling the function BSP_SD_GetStatus(). |
| willybayot | 0:4db361f2e6d5 | 86 | |
| willybayot | 0:4db361f2e6d5 | 87 | @note This driver's version interfacing SD card using SPI protocol, supports only |
| willybayot | 0:4db361f2e6d5 | 88 | SDSC (Secure Digital Standard Capacity) cards (capacity up to 4GB). |
| willybayot | 0:4db361f2e6d5 | 89 | ------------------------------------------------------------------------------*/ |
| willybayot | 0:4db361f2e6d5 | 90 | |
| willybayot | 0:4db361f2e6d5 | 91 | /* Includes ------------------------------------------------------------------*/ |
| willybayot | 0:4db361f2e6d5 | 92 | #include "stm32_adafruit_sd.h" |
| willybayot | 0:4db361f2e6d5 | 93 | |
| willybayot | 0:4db361f2e6d5 | 94 | /** @addtogroup BSP |
| willybayot | 0:4db361f2e6d5 | 95 | * @{ |
| willybayot | 0:4db361f2e6d5 | 96 | */ |
| willybayot | 0:4db361f2e6d5 | 97 | |
| willybayot | 0:4db361f2e6d5 | 98 | /** @addtogroup STM32_ADAFRUIT |
| willybayot | 0:4db361f2e6d5 | 99 | * @{ |
| willybayot | 0:4db361f2e6d5 | 100 | */ |
| willybayot | 0:4db361f2e6d5 | 101 | |
| willybayot | 0:4db361f2e6d5 | 102 | /** @defgroup STM32_ADAFRUIT_SD |
| willybayot | 0:4db361f2e6d5 | 103 | * @{ |
| willybayot | 0:4db361f2e6d5 | 104 | */ |
| willybayot | 0:4db361f2e6d5 | 105 | |
| willybayot | 0:4db361f2e6d5 | 106 | /* Private typedef -----------------------------------------------------------*/ |
| willybayot | 0:4db361f2e6d5 | 107 | |
| willybayot | 0:4db361f2e6d5 | 108 | /** @defgroup STM32_ADAFRUIT_SD_Private_Types_Definitions |
| willybayot | 0:4db361f2e6d5 | 109 | * @{ |
| willybayot | 0:4db361f2e6d5 | 110 | */ |
| willybayot | 0:4db361f2e6d5 | 111 | |
| willybayot | 0:4db361f2e6d5 | 112 | /** |
| willybayot | 0:4db361f2e6d5 | 113 | * @} |
| willybayot | 0:4db361f2e6d5 | 114 | */ |
| willybayot | 0:4db361f2e6d5 | 115 | |
| willybayot | 0:4db361f2e6d5 | 116 | /* Private define ------------------------------------------------------------*/ |
| willybayot | 0:4db361f2e6d5 | 117 | |
| willybayot | 0:4db361f2e6d5 | 118 | /** @defgroup STM32_ADAFRUIT_SD_Private_Defines |
| willybayot | 0:4db361f2e6d5 | 119 | * @{ |
| willybayot | 0:4db361f2e6d5 | 120 | */ |
| willybayot | 0:4db361f2e6d5 | 121 | #define SD_DUMMY_BYTE 0xFF |
| willybayot | 0:4db361f2e6d5 | 122 | #define SD_NO_RESPONSE_EXPECTED 0x80 |
| willybayot | 0:4db361f2e6d5 | 123 | /** |
| willybayot | 0:4db361f2e6d5 | 124 | * @} |
| willybayot | 0:4db361f2e6d5 | 125 | */ |
| willybayot | 0:4db361f2e6d5 | 126 | |
| willybayot | 0:4db361f2e6d5 | 127 | /* Private macro -------------------------------------------------------------*/ |
| willybayot | 0:4db361f2e6d5 | 128 | |
| willybayot | 0:4db361f2e6d5 | 129 | /** @defgroup STM32_ADAFRUIT_SD_Private_Macros |
| willybayot | 0:4db361f2e6d5 | 130 | * @{ |
| willybayot | 0:4db361f2e6d5 | 131 | */ |
| willybayot | 0:4db361f2e6d5 | 132 | |
| willybayot | 0:4db361f2e6d5 | 133 | /** |
| willybayot | 0:4db361f2e6d5 | 134 | * @} |
| willybayot | 0:4db361f2e6d5 | 135 | */ |
| willybayot | 0:4db361f2e6d5 | 136 | |
| willybayot | 0:4db361f2e6d5 | 137 | /* Private variables ---------------------------------------------------------*/ |
| willybayot | 0:4db361f2e6d5 | 138 | |
| willybayot | 0:4db361f2e6d5 | 139 | /** @defgroup STM32_ADAFRUIT_SD_Private_Variables |
| willybayot | 0:4db361f2e6d5 | 140 | * @{ |
| willybayot | 0:4db361f2e6d5 | 141 | */ |
| willybayot | 0:4db361f2e6d5 | 142 | __IO uint8_t SdStatus = SD_PRESENT; |
| willybayot | 0:4db361f2e6d5 | 143 | |
| willybayot | 0:4db361f2e6d5 | 144 | /** |
| willybayot | 0:4db361f2e6d5 | 145 | * @} |
| willybayot | 0:4db361f2e6d5 | 146 | */ |
| willybayot | 0:4db361f2e6d5 | 147 | |
| willybayot | 0:4db361f2e6d5 | 148 | /* Private function prototypes -----------------------------------------------*/ |
| willybayot | 0:4db361f2e6d5 | 149 | static uint8_t SD_GetCIDRegister(SD_CID* Cid); |
| willybayot | 0:4db361f2e6d5 | 150 | static uint8_t SD_GetCSDRegister(SD_CSD* Csd); |
| willybayot | 0:4db361f2e6d5 | 151 | static uint8_t SD_GetDataResponse(void); |
| willybayot | 0:4db361f2e6d5 | 152 | static uint8_t SD_GoIdleState(void); |
| willybayot | 0:4db361f2e6d5 | 153 | static uint8_t SD_SendCmd(uint8_t Cmd, uint32_t Arg, uint8_t Crc, uint8_t Response); |
| willybayot | 0:4db361f2e6d5 | 154 | |
| willybayot | 0:4db361f2e6d5 | 155 | /** @defgroup STM32_ADAFRUIT_SD_Private_Function_Prototypes |
| willybayot | 0:4db361f2e6d5 | 156 | * @{ |
| willybayot | 0:4db361f2e6d5 | 157 | */ |
| willybayot | 0:4db361f2e6d5 | 158 | /** |
| willybayot | 0:4db361f2e6d5 | 159 | * @} |
| willybayot | 0:4db361f2e6d5 | 160 | */ |
| willybayot | 0:4db361f2e6d5 | 161 | |
| willybayot | 0:4db361f2e6d5 | 162 | /* Private functions ---------------------------------------------------------*/ |
| willybayot | 0:4db361f2e6d5 | 163 | |
| willybayot | 0:4db361f2e6d5 | 164 | /** @defgroup STM32_ADAFRUIT_SD_Private_Functions |
| willybayot | 0:4db361f2e6d5 | 165 | * @{ |
| willybayot | 0:4db361f2e6d5 | 166 | */ |
| willybayot | 0:4db361f2e6d5 | 167 | |
| willybayot | 0:4db361f2e6d5 | 168 | /** |
| willybayot | 0:4db361f2e6d5 | 169 | * @brief Initializes the SD/SD communication. |
| willybayot | 0:4db361f2e6d5 | 170 | * @param None |
| willybayot | 0:4db361f2e6d5 | 171 | * @retval The SD Response: |
| willybayot | 0:4db361f2e6d5 | 172 | * - MSD_ERROR: Sequence failed |
| willybayot | 0:4db361f2e6d5 | 173 | * - MSD_OK: Sequence succeed |
| willybayot | 0:4db361f2e6d5 | 174 | */ |
| willybayot | 0:4db361f2e6d5 | 175 | uint8_t BSP_SD_Init(void) |
| willybayot | 0:4db361f2e6d5 | 176 | { |
| willybayot | 0:4db361f2e6d5 | 177 | uint8_t status = MSD_ERROR; |
| willybayot | 0:4db361f2e6d5 | 178 | |
| willybayot | 0:4db361f2e6d5 | 179 | /* Configure IO functionalities for SD pin */ |
| willybayot | 0:4db361f2e6d5 | 180 | SD_IO_Init(); |
| willybayot | 0:4db361f2e6d5 | 181 | |
| willybayot | 0:4db361f2e6d5 | 182 | /* SD detection pin is not physically mapped on the Adafruit shield */ |
| willybayot | 0:4db361f2e6d5 | 183 | SdStatus = SD_PRESENT; |
| willybayot | 0:4db361f2e6d5 | 184 | |
| willybayot | 0:4db361f2e6d5 | 185 | /* SD initialized and set to SPI mode properly */ |
| willybayot | 0:4db361f2e6d5 | 186 | status = SD_GoIdleState(); |
| willybayot | 0:4db361f2e6d5 | 187 | |
| willybayot | 0:4db361f2e6d5 | 188 | if (status == SD_RESPONSE_NO_ERROR) |
| willybayot | 0:4db361f2e6d5 | 189 | { |
| willybayot | 0:4db361f2e6d5 | 190 | return MSD_OK; |
| willybayot | 0:4db361f2e6d5 | 191 | } |
| willybayot | 0:4db361f2e6d5 | 192 | else |
| willybayot | 0:4db361f2e6d5 | 193 | { |
| willybayot | 0:4db361f2e6d5 | 194 | return MSD_ERROR; |
| willybayot | 0:4db361f2e6d5 | 195 | } |
| willybayot | 0:4db361f2e6d5 | 196 | } |
| willybayot | 0:4db361f2e6d5 | 197 | |
| willybayot | 0:4db361f2e6d5 | 198 | /** |
| willybayot | 0:4db361f2e6d5 | 199 | * @brief Returns information about specific card. |
| willybayot | 0:4db361f2e6d5 | 200 | * @param pCardInfo: Pointer to a SD_CardInfo structure that contains all SD |
| willybayot | 0:4db361f2e6d5 | 201 | * card information. |
| willybayot | 0:4db361f2e6d5 | 202 | * @retval The SD Response: |
| willybayot | 0:4db361f2e6d5 | 203 | * - MSD_ERROR: Sequence failed |
| willybayot | 0:4db361f2e6d5 | 204 | * - MSD_OK: Sequence succeed |
| willybayot | 0:4db361f2e6d5 | 205 | */ |
| willybayot | 0:4db361f2e6d5 | 206 | uint8_t BSP_SD_GetCardInfo(SD_CardInfo *pCardInfo) |
| willybayot | 0:4db361f2e6d5 | 207 | { |
| willybayot | 0:4db361f2e6d5 | 208 | uint8_t status = MSD_ERROR; |
| willybayot | 0:4db361f2e6d5 | 209 | |
| willybayot | 0:4db361f2e6d5 | 210 | SD_GetCSDRegister(&(pCardInfo->Csd)); |
| willybayot | 0:4db361f2e6d5 | 211 | status = SD_GetCIDRegister(&(pCardInfo->Cid)); |
| willybayot | 0:4db361f2e6d5 | 212 | pCardInfo->CardCapacity = (pCardInfo->Csd.DeviceSize + 1) ; |
| willybayot | 0:4db361f2e6d5 | 213 | pCardInfo->CardCapacity *= (1 << (pCardInfo->Csd.DeviceSizeMul + 2)); |
| willybayot | 0:4db361f2e6d5 | 214 | pCardInfo->CardBlockSize = 1 << (pCardInfo->Csd.RdBlockLen); |
| willybayot | 0:4db361f2e6d5 | 215 | pCardInfo->CardCapacity *= pCardInfo->CardBlockSize; |
| willybayot | 0:4db361f2e6d5 | 216 | |
| willybayot | 0:4db361f2e6d5 | 217 | /* Returns the reponse */ |
| willybayot | 0:4db361f2e6d5 | 218 | if (status == SD_RESPONSE_NO_ERROR) |
| willybayot | 0:4db361f2e6d5 | 219 | { |
| willybayot | 0:4db361f2e6d5 | 220 | return MSD_OK; |
| willybayot | 0:4db361f2e6d5 | 221 | } |
| willybayot | 0:4db361f2e6d5 | 222 | else |
| willybayot | 0:4db361f2e6d5 | 223 | { |
| willybayot | 0:4db361f2e6d5 | 224 | return MSD_ERROR; |
| willybayot | 0:4db361f2e6d5 | 225 | } |
| willybayot | 0:4db361f2e6d5 | 226 | } |
| willybayot | 0:4db361f2e6d5 | 227 | |
| willybayot | 0:4db361f2e6d5 | 228 | /** |
| willybayot | 0:4db361f2e6d5 | 229 | * @brief Reads block(s) from a specified address in the SD card, in polling mode. |
| willybayot | 0:4db361f2e6d5 | 230 | * @param pData: Pointer to the buffer that will contain the data to transmit |
| willybayot | 0:4db361f2e6d5 | 231 | * @param ReadAddr: Address from where data is to be read |
| willybayot | 0:4db361f2e6d5 | 232 | * @param BlockSize: SD card data block size, that should be 512 |
| willybayot | 0:4db361f2e6d5 | 233 | * @param NumOfBlocks: Number of SD blocks to read |
| willybayot | 0:4db361f2e6d5 | 234 | * @retval SD status |
| willybayot | 0:4db361f2e6d5 | 235 | */ |
| willybayot | 0:4db361f2e6d5 | 236 | uint8_t BSP_SD_ReadBlocks(uint32_t* pData, uint32_t ReadAddr, uint16_t BlockSize, uint32_t NumberOfBlocks) |
| willybayot | 0:4db361f2e6d5 | 237 | { |
| willybayot | 0:4db361f2e6d5 | 238 | uint32_t counter = 0, offset = 0; |
| willybayot | 0:4db361f2e6d5 | 239 | uint8_t rvalue = MSD_ERROR; |
| willybayot | 0:4db361f2e6d5 | 240 | uint8_t *ptr = (uint8_t*) pData; |
| willybayot | 0:4db361f2e6d5 | 241 | |
| willybayot | 0:4db361f2e6d5 | 242 | /* Send CMD16 (SD_CMD_SET_BLOCKLEN) to set the size of the block and |
| willybayot | 0:4db361f2e6d5 | 243 | Check if the SD acknowledged the set block length command: R1 response (0x00: no errors) */ |
| willybayot | 0:4db361f2e6d5 | 244 | if (SD_IO_WriteCmd(SD_CMD_SET_BLOCKLEN, BlockSize, 0xFF, SD_RESPONSE_NO_ERROR) != 0) |
| willybayot | 0:4db361f2e6d5 | 245 | { |
| willybayot | 0:4db361f2e6d5 | 246 | return MSD_ERROR; |
| willybayot | 0:4db361f2e6d5 | 247 | } |
| willybayot | 0:4db361f2e6d5 | 248 | |
| willybayot | 0:4db361f2e6d5 | 249 | /* Data transfer */ |
| willybayot | 0:4db361f2e6d5 | 250 | while (NumberOfBlocks--) |
| willybayot | 0:4db361f2e6d5 | 251 | { |
| willybayot | 0:4db361f2e6d5 | 252 | /* Send dummy byte: 8 Clock pulses of delay */ |
| willybayot | 0:4db361f2e6d5 | 253 | SD_IO_WriteDummy(); |
| willybayot | 0:4db361f2e6d5 | 254 | |
| willybayot | 0:4db361f2e6d5 | 255 | /* Send CMD17 (SD_CMD_READ_SINGLE_BLOCK) to read one block */ |
| willybayot | 0:4db361f2e6d5 | 256 | /* Check if the SD acknowledged the read block command: R1 response (0x00: no errors) */ |
| willybayot | 0:4db361f2e6d5 | 257 | if (SD_IO_WriteCmd(SD_CMD_READ_SINGLE_BLOCK, ReadAddr + offset, 0xFF, SD_RESPONSE_NO_ERROR) != 0) |
| willybayot | 0:4db361f2e6d5 | 258 | { |
| willybayot | 0:4db361f2e6d5 | 259 | return MSD_ERROR; |
| willybayot | 0:4db361f2e6d5 | 260 | } |
| willybayot | 0:4db361f2e6d5 | 261 | |
| willybayot | 0:4db361f2e6d5 | 262 | /* Now look for the data token to signify the start of the data */ |
| willybayot | 0:4db361f2e6d5 | 263 | if (!SD_IO_WaitResponse(SD_START_DATA_SINGLE_BLOCK_READ)) |
| willybayot | 0:4db361f2e6d5 | 264 | { |
| willybayot | 0:4db361f2e6d5 | 265 | /* Read the SD block data : read NumByteToRead data */ |
| willybayot | 0:4db361f2e6d5 | 266 | for (counter = 0; counter < BlockSize; counter++) |
| willybayot | 0:4db361f2e6d5 | 267 | { |
| willybayot | 0:4db361f2e6d5 | 268 | /* Read the pointed data */ |
| willybayot | 0:4db361f2e6d5 | 269 | *ptr = SD_IO_ReadByte(); |
| willybayot | 0:4db361f2e6d5 | 270 | /* Point to the next location where the byte read will be saved */ |
| willybayot | 0:4db361f2e6d5 | 271 | ptr++; |
| willybayot | 0:4db361f2e6d5 | 272 | } |
| willybayot | 0:4db361f2e6d5 | 273 | /* Set next read address*/ |
| willybayot | 0:4db361f2e6d5 | 274 | offset += BlockSize; |
| willybayot | 0:4db361f2e6d5 | 275 | /* get CRC bytes (not really needed by us, but required by SD) */ |
| willybayot | 0:4db361f2e6d5 | 276 | SD_IO_ReadByte(); |
| willybayot | 0:4db361f2e6d5 | 277 | SD_IO_ReadByte(); |
| willybayot | 0:4db361f2e6d5 | 278 | /* Set response value to success */ |
| willybayot | 0:4db361f2e6d5 | 279 | rvalue = MSD_OK; |
| willybayot | 0:4db361f2e6d5 | 280 | } |
| willybayot | 0:4db361f2e6d5 | 281 | else |
| willybayot | 0:4db361f2e6d5 | 282 | { |
| willybayot | 0:4db361f2e6d5 | 283 | /* Set response value to failure */ |
| willybayot | 0:4db361f2e6d5 | 284 | rvalue = MSD_ERROR; |
| willybayot | 0:4db361f2e6d5 | 285 | } |
| willybayot | 0:4db361f2e6d5 | 286 | } |
| willybayot | 0:4db361f2e6d5 | 287 | |
| willybayot | 0:4db361f2e6d5 | 288 | /* Send dummy byte: 8 Clock pulses of delay */ |
| willybayot | 0:4db361f2e6d5 | 289 | SD_IO_WriteDummy(); |
| willybayot | 0:4db361f2e6d5 | 290 | |
| willybayot | 0:4db361f2e6d5 | 291 | /* Return the reponse */ |
| willybayot | 0:4db361f2e6d5 | 292 | return rvalue; |
| willybayot | 0:4db361f2e6d5 | 293 | } |
| willybayot | 0:4db361f2e6d5 | 294 | |
| willybayot | 0:4db361f2e6d5 | 295 | /** |
| willybayot | 0:4db361f2e6d5 | 296 | * @brief Writes block(s) to a specified address in the SD card, in polling mode. |
| willybayot | 0:4db361f2e6d5 | 297 | * @param pData: Pointer to the buffer that will contain the data to transmit |
| willybayot | 0:4db361f2e6d5 | 298 | * @param WriteAddr: Address from where data is to be written |
| willybayot | 0:4db361f2e6d5 | 299 | * @param BlockSize: SD card data block size, that should be 512 |
| willybayot | 0:4db361f2e6d5 | 300 | * @param NumOfBlocks: Number of SD blocks to write |
| willybayot | 0:4db361f2e6d5 | 301 | * @retval SD status |
| willybayot | 0:4db361f2e6d5 | 302 | */ |
| willybayot | 0:4db361f2e6d5 | 303 | uint8_t BSP_SD_WriteBlocks(uint32_t* pData, uint32_t WriteAddr, uint16_t BlockSize, uint32_t NumberOfBlocks) |
| willybayot | 0:4db361f2e6d5 | 304 | { |
| willybayot | 0:4db361f2e6d5 | 305 | uint32_t counter = 0, offset = 0; |
| willybayot | 0:4db361f2e6d5 | 306 | uint8_t rvalue = MSD_ERROR; |
| willybayot | 0:4db361f2e6d5 | 307 | uint8_t *ptr = (uint8_t*) pData; |
| willybayot | 0:4db361f2e6d5 | 308 | |
| willybayot | 0:4db361f2e6d5 | 309 | /* Data transfer */ |
| willybayot | 0:4db361f2e6d5 | 310 | while (NumberOfBlocks--) |
| willybayot | 0:4db361f2e6d5 | 311 | { |
| willybayot | 0:4db361f2e6d5 | 312 | /* Send CMD24 (SD_CMD_WRITE_SINGLE_BLOCK) to write blocks and |
| willybayot | 0:4db361f2e6d5 | 313 | Check if the SD acknowledged the write block command: R1 response (0x00: no errors) */ |
| willybayot | 0:4db361f2e6d5 | 314 | if (SD_IO_WriteCmd(SD_CMD_WRITE_SINGLE_BLOCK, WriteAddr + offset, 0xFF, SD_RESPONSE_NO_ERROR)) |
| willybayot | 0:4db361f2e6d5 | 315 | { |
| willybayot | 0:4db361f2e6d5 | 316 | return MSD_ERROR; |
| willybayot | 0:4db361f2e6d5 | 317 | } |
| willybayot | 0:4db361f2e6d5 | 318 | |
| willybayot | 0:4db361f2e6d5 | 319 | /* Send dummy byte */ |
| willybayot | 0:4db361f2e6d5 | 320 | SD_IO_WriteByte(SD_DUMMY_BYTE); |
| willybayot | 0:4db361f2e6d5 | 321 | |
| willybayot | 0:4db361f2e6d5 | 322 | /* Send the data token to signify the start of the data */ |
| willybayot | 0:4db361f2e6d5 | 323 | SD_IO_WriteByte(SD_START_DATA_SINGLE_BLOCK_WRITE); |
| willybayot | 0:4db361f2e6d5 | 324 | |
| willybayot | 0:4db361f2e6d5 | 325 | /* Write the block data to SD : write count data by block */ |
| willybayot | 0:4db361f2e6d5 | 326 | for (counter = 0; counter < BlockSize; counter++) |
| willybayot | 0:4db361f2e6d5 | 327 | { |
| willybayot | 0:4db361f2e6d5 | 328 | /* Send the pointed byte */ |
| willybayot | 0:4db361f2e6d5 | 329 | SD_IO_WriteByte(*ptr); |
| willybayot | 0:4db361f2e6d5 | 330 | |
| willybayot | 0:4db361f2e6d5 | 331 | /* Point to the next location where the byte read will be saved */ |
| willybayot | 0:4db361f2e6d5 | 332 | ptr++; |
| willybayot | 0:4db361f2e6d5 | 333 | } |
| willybayot | 0:4db361f2e6d5 | 334 | |
| willybayot | 0:4db361f2e6d5 | 335 | /* Set next write address */ |
| willybayot | 0:4db361f2e6d5 | 336 | offset += BlockSize; |
| willybayot | 0:4db361f2e6d5 | 337 | |
| willybayot | 0:4db361f2e6d5 | 338 | /* Put CRC bytes (not really needed by us, but required by SD) */ |
| willybayot | 0:4db361f2e6d5 | 339 | SD_IO_ReadByte(); |
| willybayot | 0:4db361f2e6d5 | 340 | SD_IO_ReadByte(); |
| willybayot | 0:4db361f2e6d5 | 341 | |
| willybayot | 0:4db361f2e6d5 | 342 | /* Read data response */ |
| willybayot | 0:4db361f2e6d5 | 343 | if (SD_GetDataResponse() == SD_DATA_OK) |
| willybayot | 0:4db361f2e6d5 | 344 | { |
| willybayot | 0:4db361f2e6d5 | 345 | /* Set response value to success */ |
| willybayot | 0:4db361f2e6d5 | 346 | rvalue = MSD_OK; |
| willybayot | 0:4db361f2e6d5 | 347 | } |
| willybayot | 0:4db361f2e6d5 | 348 | else |
| willybayot | 0:4db361f2e6d5 | 349 | { |
| willybayot | 0:4db361f2e6d5 | 350 | /* Set response value to failure */ |
| willybayot | 0:4db361f2e6d5 | 351 | rvalue = MSD_ERROR; |
| willybayot | 0:4db361f2e6d5 | 352 | } |
| willybayot | 0:4db361f2e6d5 | 353 | } |
| willybayot | 0:4db361f2e6d5 | 354 | |
| willybayot | 0:4db361f2e6d5 | 355 | /* Send dummy byte: 8 Clock pulses of delay */ |
| willybayot | 0:4db361f2e6d5 | 356 | SD_IO_WriteDummy(); |
| willybayot | 0:4db361f2e6d5 | 357 | |
| willybayot | 0:4db361f2e6d5 | 358 | /* Return the reponse */ |
| willybayot | 0:4db361f2e6d5 | 359 | return rvalue; |
| willybayot | 0:4db361f2e6d5 | 360 | } |
| willybayot | 0:4db361f2e6d5 | 361 | |
| willybayot | 0:4db361f2e6d5 | 362 | /** |
| willybayot | 0:4db361f2e6d5 | 363 | * @brief Reads the SD card SCD register. |
| willybayot | 0:4db361f2e6d5 | 364 | * Reading the contents of the CSD register in SPI mode is a simple |
| willybayot | 0:4db361f2e6d5 | 365 | * read-block transaction. |
| willybayot | 0:4db361f2e6d5 | 366 | * @param Csd: pointer on an SCD register structure |
| willybayot | 0:4db361f2e6d5 | 367 | * @retval SD status |
| willybayot | 0:4db361f2e6d5 | 368 | */ |
| willybayot | 0:4db361f2e6d5 | 369 | static uint8_t SD_GetCSDRegister(SD_CSD* Csd) |
| willybayot | 0:4db361f2e6d5 | 370 | { |
| willybayot | 0:4db361f2e6d5 | 371 | uint32_t counter = 0; |
| willybayot | 0:4db361f2e6d5 | 372 | uint8_t rvalue = SD_RESPONSE_FAILURE; |
| willybayot | 0:4db361f2e6d5 | 373 | uint8_t CSD_Tab[16]; |
| willybayot | 0:4db361f2e6d5 | 374 | |
| willybayot | 0:4db361f2e6d5 | 375 | /* Send CMD9 (CSD register) or CMD10(CSD register) and Wait for response in the R1 format (0x00 is no errors) */ |
| willybayot | 0:4db361f2e6d5 | 376 | if (!SD_IO_WriteCmd(SD_CMD_SEND_CSD, 0, 0xFF, SD_RESPONSE_NO_ERROR)) |
| willybayot | 0:4db361f2e6d5 | 377 | { |
| willybayot | 0:4db361f2e6d5 | 378 | if (!SD_IO_WaitResponse(SD_START_DATA_SINGLE_BLOCK_READ)) |
| willybayot | 0:4db361f2e6d5 | 379 | { |
| willybayot | 0:4db361f2e6d5 | 380 | for (counter = 0; counter < 16; counter++) |
| willybayot | 0:4db361f2e6d5 | 381 | { |
| willybayot | 0:4db361f2e6d5 | 382 | /* Store CSD register value on CSD_Tab */ |
| willybayot | 0:4db361f2e6d5 | 383 | CSD_Tab[counter] = SD_IO_ReadByte(); |
| willybayot | 0:4db361f2e6d5 | 384 | } |
| willybayot | 0:4db361f2e6d5 | 385 | |
| willybayot | 0:4db361f2e6d5 | 386 | /* Get CRC bytes (not really needed by us, but required by SD) */ |
| willybayot | 0:4db361f2e6d5 | 387 | SD_IO_WriteByte(SD_DUMMY_BYTE); |
| willybayot | 0:4db361f2e6d5 | 388 | SD_IO_WriteByte(SD_DUMMY_BYTE); |
| willybayot | 0:4db361f2e6d5 | 389 | |
| willybayot | 0:4db361f2e6d5 | 390 | /* Set response value to success */ |
| willybayot | 0:4db361f2e6d5 | 391 | rvalue = SD_RESPONSE_NO_ERROR; |
| willybayot | 0:4db361f2e6d5 | 392 | } |
| willybayot | 0:4db361f2e6d5 | 393 | } |
| willybayot | 0:4db361f2e6d5 | 394 | /* Send dummy byte: 8 Clock pulses of delay */ |
| willybayot | 0:4db361f2e6d5 | 395 | SD_IO_WriteDummy(); |
| willybayot | 0:4db361f2e6d5 | 396 | |
| willybayot | 0:4db361f2e6d5 | 397 | if(rvalue == SD_RESPONSE_NO_ERROR) |
| willybayot | 0:4db361f2e6d5 | 398 | { |
| willybayot | 0:4db361f2e6d5 | 399 | /* Byte 0 */ |
| willybayot | 0:4db361f2e6d5 | 400 | Csd->CSDStruct = (CSD_Tab[0] & 0xC0) >> 6; |
| willybayot | 0:4db361f2e6d5 | 401 | Csd->SysSpecVersion = (CSD_Tab[0] & 0x3C) >> 2; |
| willybayot | 0:4db361f2e6d5 | 402 | Csd->Reserved1 = CSD_Tab[0] & 0x03; |
| willybayot | 0:4db361f2e6d5 | 403 | |
| willybayot | 0:4db361f2e6d5 | 404 | /* Byte 1 */ |
| willybayot | 0:4db361f2e6d5 | 405 | Csd->TAAC = CSD_Tab[1]; |
| willybayot | 0:4db361f2e6d5 | 406 | |
| willybayot | 0:4db361f2e6d5 | 407 | /* Byte 2 */ |
| willybayot | 0:4db361f2e6d5 | 408 | Csd->NSAC = CSD_Tab[2]; |
| willybayot | 0:4db361f2e6d5 | 409 | |
| willybayot | 0:4db361f2e6d5 | 410 | /* Byte 3 */ |
| willybayot | 0:4db361f2e6d5 | 411 | Csd->MaxBusClkFrec = CSD_Tab[3]; |
| willybayot | 0:4db361f2e6d5 | 412 | |
| willybayot | 0:4db361f2e6d5 | 413 | /* Byte 4 */ |
| willybayot | 0:4db361f2e6d5 | 414 | Csd->CardComdClasses = CSD_Tab[4] << 4; |
| willybayot | 0:4db361f2e6d5 | 415 | |
| willybayot | 0:4db361f2e6d5 | 416 | /* Byte 5 */ |
| willybayot | 0:4db361f2e6d5 | 417 | Csd->CardComdClasses |= (CSD_Tab[5] & 0xF0) >> 4; |
| willybayot | 0:4db361f2e6d5 | 418 | Csd->RdBlockLen = CSD_Tab[5] & 0x0F; |
| willybayot | 0:4db361f2e6d5 | 419 | |
| willybayot | 0:4db361f2e6d5 | 420 | /* Byte 6 */ |
| willybayot | 0:4db361f2e6d5 | 421 | Csd->PartBlockRead = (CSD_Tab[6] & 0x80) >> 7; |
| willybayot | 0:4db361f2e6d5 | 422 | Csd->WrBlockMisalign = (CSD_Tab[6] & 0x40) >> 6; |
| willybayot | 0:4db361f2e6d5 | 423 | Csd->RdBlockMisalign = (CSD_Tab[6] & 0x20) >> 5; |
| willybayot | 0:4db361f2e6d5 | 424 | Csd->DSRImpl = (CSD_Tab[6] & 0x10) >> 4; |
| willybayot | 0:4db361f2e6d5 | 425 | Csd->Reserved2 = 0; /*!< Reserved */ |
| willybayot | 0:4db361f2e6d5 | 426 | |
| willybayot | 0:4db361f2e6d5 | 427 | Csd->DeviceSize = (CSD_Tab[6] & 0x03) << 10; |
| willybayot | 0:4db361f2e6d5 | 428 | |
| willybayot | 0:4db361f2e6d5 | 429 | /* Byte 7 */ |
| willybayot | 0:4db361f2e6d5 | 430 | Csd->DeviceSize |= (CSD_Tab[7]) << 2; |
| willybayot | 0:4db361f2e6d5 | 431 | |
| willybayot | 0:4db361f2e6d5 | 432 | /* Byte 8 */ |
| willybayot | 0:4db361f2e6d5 | 433 | Csd->DeviceSize |= (CSD_Tab[8] & 0xC0) >> 6; |
| willybayot | 0:4db361f2e6d5 | 434 | |
| willybayot | 0:4db361f2e6d5 | 435 | Csd->MaxRdCurrentVDDMin = (CSD_Tab[8] & 0x38) >> 3; |
| willybayot | 0:4db361f2e6d5 | 436 | Csd->MaxRdCurrentVDDMax = (CSD_Tab[8] & 0x07); |
| willybayot | 0:4db361f2e6d5 | 437 | |
| willybayot | 0:4db361f2e6d5 | 438 | /* Byte 9 */ |
| willybayot | 0:4db361f2e6d5 | 439 | Csd->MaxWrCurrentVDDMin = (CSD_Tab[9] & 0xE0) >> 5; |
| willybayot | 0:4db361f2e6d5 | 440 | Csd->MaxWrCurrentVDDMax = (CSD_Tab[9] & 0x1C) >> 2; |
| willybayot | 0:4db361f2e6d5 | 441 | Csd->DeviceSizeMul = (CSD_Tab[9] & 0x03) << 1; |
| willybayot | 0:4db361f2e6d5 | 442 | /* Byte 10 */ |
| willybayot | 0:4db361f2e6d5 | 443 | Csd->DeviceSizeMul |= (CSD_Tab[10] & 0x80) >> 7; |
| willybayot | 0:4db361f2e6d5 | 444 | |
| willybayot | 0:4db361f2e6d5 | 445 | Csd->EraseGrSize = (CSD_Tab[10] & 0x40) >> 6; |
| willybayot | 0:4db361f2e6d5 | 446 | Csd->EraseGrMul = (CSD_Tab[10] & 0x3F) << 1; |
| willybayot | 0:4db361f2e6d5 | 447 | |
| willybayot | 0:4db361f2e6d5 | 448 | /* Byte 11 */ |
| willybayot | 0:4db361f2e6d5 | 449 | Csd->EraseGrMul |= (CSD_Tab[11] & 0x80) >> 7; |
| willybayot | 0:4db361f2e6d5 | 450 | Csd->WrProtectGrSize = (CSD_Tab[11] & 0x7F); |
| willybayot | 0:4db361f2e6d5 | 451 | |
| willybayot | 0:4db361f2e6d5 | 452 | /* Byte 12 */ |
| willybayot | 0:4db361f2e6d5 | 453 | Csd->WrProtectGrEnable = (CSD_Tab[12] & 0x80) >> 7; |
| willybayot | 0:4db361f2e6d5 | 454 | Csd->ManDeflECC = (CSD_Tab[12] & 0x60) >> 5; |
| willybayot | 0:4db361f2e6d5 | 455 | Csd->WrSpeedFact = (CSD_Tab[12] & 0x1C) >> 2; |
| willybayot | 0:4db361f2e6d5 | 456 | Csd->MaxWrBlockLen = (CSD_Tab[12] & 0x03) << 2; |
| willybayot | 0:4db361f2e6d5 | 457 | |
| willybayot | 0:4db361f2e6d5 | 458 | /* Byte 13 */ |
| willybayot | 0:4db361f2e6d5 | 459 | Csd->MaxWrBlockLen |= (CSD_Tab[13] & 0xC0) >> 6; |
| willybayot | 0:4db361f2e6d5 | 460 | Csd->WriteBlockPaPartial = (CSD_Tab[13] & 0x20) >> 5; |
| willybayot | 0:4db361f2e6d5 | 461 | Csd->Reserved3 = 0; |
| willybayot | 0:4db361f2e6d5 | 462 | Csd->ContentProtectAppli = (CSD_Tab[13] & 0x01); |
| willybayot | 0:4db361f2e6d5 | 463 | |
| willybayot | 0:4db361f2e6d5 | 464 | /* Byte 14 */ |
| willybayot | 0:4db361f2e6d5 | 465 | Csd->FileFormatGrouop = (CSD_Tab[14] & 0x80) >> 7; |
| willybayot | 0:4db361f2e6d5 | 466 | Csd->CopyFlag = (CSD_Tab[14] & 0x40) >> 6; |
| willybayot | 0:4db361f2e6d5 | 467 | Csd->PermWrProtect = (CSD_Tab[14] & 0x20) >> 5; |
| willybayot | 0:4db361f2e6d5 | 468 | Csd->TempWrProtect = (CSD_Tab[14] & 0x10) >> 4; |
| willybayot | 0:4db361f2e6d5 | 469 | Csd->FileFormat = (CSD_Tab[14] & 0x0C) >> 2; |
| willybayot | 0:4db361f2e6d5 | 470 | Csd->ECC = (CSD_Tab[14] & 0x03); |
| willybayot | 0:4db361f2e6d5 | 471 | |
| willybayot | 0:4db361f2e6d5 | 472 | /* Byte 15 */ |
| willybayot | 0:4db361f2e6d5 | 473 | Csd->CSD_CRC = (CSD_Tab[15] & 0xFE) >> 1; |
| willybayot | 0:4db361f2e6d5 | 474 | Csd->Reserved4 = 1; |
| willybayot | 0:4db361f2e6d5 | 475 | } |
| willybayot | 0:4db361f2e6d5 | 476 | |
| willybayot | 0:4db361f2e6d5 | 477 | /* Return the reponse */ |
| willybayot | 0:4db361f2e6d5 | 478 | return rvalue; |
| willybayot | 0:4db361f2e6d5 | 479 | } |
| willybayot | 0:4db361f2e6d5 | 480 | |
| willybayot | 0:4db361f2e6d5 | 481 | /** |
| willybayot | 0:4db361f2e6d5 | 482 | * @brief Reads the SD card CID register. |
| willybayot | 0:4db361f2e6d5 | 483 | * Reading the contents of the CID register in SPI mode is a simple |
| willybayot | 0:4db361f2e6d5 | 484 | * read-block transaction. |
| willybayot | 0:4db361f2e6d5 | 485 | * @param Cid: pointer on an CID register structure |
| willybayot | 0:4db361f2e6d5 | 486 | * @retval SD status |
| willybayot | 0:4db361f2e6d5 | 487 | */ |
| willybayot | 0:4db361f2e6d5 | 488 | static uint8_t SD_GetCIDRegister(SD_CID* Cid) |
| willybayot | 0:4db361f2e6d5 | 489 | { |
| willybayot | 0:4db361f2e6d5 | 490 | uint32_t counter = 0; |
| willybayot | 0:4db361f2e6d5 | 491 | uint8_t rvalue = SD_RESPONSE_FAILURE; |
| willybayot | 0:4db361f2e6d5 | 492 | uint8_t CID_Tab[16]; |
| willybayot | 0:4db361f2e6d5 | 493 | |
| willybayot | 0:4db361f2e6d5 | 494 | /* Send CMD10 (CID register) and Wait for response in the R1 format (0x00 is no errors) */ |
| willybayot | 0:4db361f2e6d5 | 495 | if (!SD_IO_WriteCmd(SD_CMD_SEND_CID, 0, 0xFF, SD_RESPONSE_NO_ERROR)) |
| willybayot | 0:4db361f2e6d5 | 496 | { |
| willybayot | 0:4db361f2e6d5 | 497 | if (!SD_IO_WaitResponse(SD_START_DATA_SINGLE_BLOCK_READ)) |
| willybayot | 0:4db361f2e6d5 | 498 | { |
| willybayot | 0:4db361f2e6d5 | 499 | /* Store CID register value on CID_Tab */ |
| willybayot | 0:4db361f2e6d5 | 500 | for (counter = 0; counter < 16; counter++) |
| willybayot | 0:4db361f2e6d5 | 501 | { |
| willybayot | 0:4db361f2e6d5 | 502 | CID_Tab[counter] = SD_IO_ReadByte(); |
| willybayot | 0:4db361f2e6d5 | 503 | } |
| willybayot | 0:4db361f2e6d5 | 504 | |
| willybayot | 0:4db361f2e6d5 | 505 | /* Get CRC bytes (not really needed by us, but required by SD) */ |
| willybayot | 0:4db361f2e6d5 | 506 | SD_IO_WriteByte(SD_DUMMY_BYTE); |
| willybayot | 0:4db361f2e6d5 | 507 | SD_IO_WriteByte(SD_DUMMY_BYTE); |
| willybayot | 0:4db361f2e6d5 | 508 | |
| willybayot | 0:4db361f2e6d5 | 509 | /* Set response value to success */ |
| willybayot | 0:4db361f2e6d5 | 510 | rvalue = SD_RESPONSE_NO_ERROR; |
| willybayot | 0:4db361f2e6d5 | 511 | } |
| willybayot | 0:4db361f2e6d5 | 512 | } |
| willybayot | 0:4db361f2e6d5 | 513 | |
| willybayot | 0:4db361f2e6d5 | 514 | /* Send dummy byte: 8 Clock pulses of delay */ |
| willybayot | 0:4db361f2e6d5 | 515 | SD_IO_WriteDummy(); |
| willybayot | 0:4db361f2e6d5 | 516 | |
| willybayot | 0:4db361f2e6d5 | 517 | if(rvalue == SD_RESPONSE_NO_ERROR) |
| willybayot | 0:4db361f2e6d5 | 518 | { |
| willybayot | 0:4db361f2e6d5 | 519 | /* Byte 0 */ |
| willybayot | 0:4db361f2e6d5 | 520 | Cid->ManufacturerID = CID_Tab[0]; |
| willybayot | 0:4db361f2e6d5 | 521 | |
| willybayot | 0:4db361f2e6d5 | 522 | /* Byte 1 */ |
| willybayot | 0:4db361f2e6d5 | 523 | Cid->OEM_AppliID = CID_Tab[1] << 8; |
| willybayot | 0:4db361f2e6d5 | 524 | |
| willybayot | 0:4db361f2e6d5 | 525 | /* Byte 2 */ |
| willybayot | 0:4db361f2e6d5 | 526 | Cid->OEM_AppliID |= CID_Tab[2]; |
| willybayot | 0:4db361f2e6d5 | 527 | |
| willybayot | 0:4db361f2e6d5 | 528 | /* Byte 3 */ |
| willybayot | 0:4db361f2e6d5 | 529 | Cid->ProdName1 = CID_Tab[3] << 24; |
| willybayot | 0:4db361f2e6d5 | 530 | |
| willybayot | 0:4db361f2e6d5 | 531 | /* Byte 4 */ |
| willybayot | 0:4db361f2e6d5 | 532 | Cid->ProdName1 |= CID_Tab[4] << 16; |
| willybayot | 0:4db361f2e6d5 | 533 | |
| willybayot | 0:4db361f2e6d5 | 534 | /* Byte 5 */ |
| willybayot | 0:4db361f2e6d5 | 535 | Cid->ProdName1 |= CID_Tab[5] << 8; |
| willybayot | 0:4db361f2e6d5 | 536 | |
| willybayot | 0:4db361f2e6d5 | 537 | /* Byte 6 */ |
| willybayot | 0:4db361f2e6d5 | 538 | Cid->ProdName1 |= CID_Tab[6]; |
| willybayot | 0:4db361f2e6d5 | 539 | |
| willybayot | 0:4db361f2e6d5 | 540 | /* Byte 7 */ |
| willybayot | 0:4db361f2e6d5 | 541 | Cid->ProdName2 = CID_Tab[7]; |
| willybayot | 0:4db361f2e6d5 | 542 | |
| willybayot | 0:4db361f2e6d5 | 543 | /* Byte 8 */ |
| willybayot | 0:4db361f2e6d5 | 544 | Cid->ProdRev = CID_Tab[8]; |
| willybayot | 0:4db361f2e6d5 | 545 | |
| willybayot | 0:4db361f2e6d5 | 546 | /* Byte 9 */ |
| willybayot | 0:4db361f2e6d5 | 547 | Cid->ProdSN = CID_Tab[9] << 24; |
| willybayot | 0:4db361f2e6d5 | 548 | |
| willybayot | 0:4db361f2e6d5 | 549 | /* Byte 10 */ |
| willybayot | 0:4db361f2e6d5 | 550 | Cid->ProdSN |= CID_Tab[10] << 16; |
| willybayot | 0:4db361f2e6d5 | 551 | |
| willybayot | 0:4db361f2e6d5 | 552 | /* Byte 11 */ |
| willybayot | 0:4db361f2e6d5 | 553 | Cid->ProdSN |= CID_Tab[11] << 8; |
| willybayot | 0:4db361f2e6d5 | 554 | |
| willybayot | 0:4db361f2e6d5 | 555 | /* Byte 12 */ |
| willybayot | 0:4db361f2e6d5 | 556 | Cid->ProdSN |= CID_Tab[12]; |
| willybayot | 0:4db361f2e6d5 | 557 | |
| willybayot | 0:4db361f2e6d5 | 558 | /* Byte 13 */ |
| willybayot | 0:4db361f2e6d5 | 559 | Cid->Reserved1 |= (CID_Tab[13] & 0xF0) >> 4; |
| willybayot | 0:4db361f2e6d5 | 560 | Cid->ManufactDate = (CID_Tab[13] & 0x0F) << 8; |
| willybayot | 0:4db361f2e6d5 | 561 | |
| willybayot | 0:4db361f2e6d5 | 562 | /* Byte 14 */ |
| willybayot | 0:4db361f2e6d5 | 563 | Cid->ManufactDate |= CID_Tab[14]; |
| willybayot | 0:4db361f2e6d5 | 564 | |
| willybayot | 0:4db361f2e6d5 | 565 | /* Byte 15 */ |
| willybayot | 0:4db361f2e6d5 | 566 | Cid->CID_CRC = (CID_Tab[15] & 0xFE) >> 1; |
| willybayot | 0:4db361f2e6d5 | 567 | Cid->Reserved2 = 1; |
| willybayot | 0:4db361f2e6d5 | 568 | } |
| willybayot | 0:4db361f2e6d5 | 569 | /* Return the reponse */ |
| willybayot | 0:4db361f2e6d5 | 570 | return rvalue; |
| willybayot | 0:4db361f2e6d5 | 571 | } |
| willybayot | 0:4db361f2e6d5 | 572 | |
| willybayot | 0:4db361f2e6d5 | 573 | /** |
| willybayot | 0:4db361f2e6d5 | 574 | * @brief Sends 5 bytes command to the SD card and get response |
| willybayot | 0:4db361f2e6d5 | 575 | * @param Cmd: The user expected command to send to SD card. |
| willybayot | 0:4db361f2e6d5 | 576 | * @param Arg: The command argument. |
| willybayot | 0:4db361f2e6d5 | 577 | * @param Crc: The CRC. |
| willybayot | 0:4db361f2e6d5 | 578 | * @param Response: Expected response from the SD card |
| willybayot | 0:4db361f2e6d5 | 579 | * @retval SD status |
| willybayot | 0:4db361f2e6d5 | 580 | */ |
| willybayot | 0:4db361f2e6d5 | 581 | static uint8_t SD_SendCmd(uint8_t Cmd, uint32_t Arg, uint8_t Crc, uint8_t Response) |
| willybayot | 0:4db361f2e6d5 | 582 | { |
| willybayot | 0:4db361f2e6d5 | 583 | uint8_t status; |
| willybayot | 0:4db361f2e6d5 | 584 | |
| willybayot | 0:4db361f2e6d5 | 585 | status = (uint8_t)SD_IO_WriteCmd(Cmd, Arg, Crc, Response); |
| willybayot | 0:4db361f2e6d5 | 586 | |
| willybayot | 0:4db361f2e6d5 | 587 | /* Send Dummy Byte */ |
| willybayot | 0:4db361f2e6d5 | 588 | SD_IO_WriteDummy(); |
| willybayot | 0:4db361f2e6d5 | 589 | |
| willybayot | 0:4db361f2e6d5 | 590 | return status; |
| willybayot | 0:4db361f2e6d5 | 591 | } |
| willybayot | 0:4db361f2e6d5 | 592 | |
| willybayot | 0:4db361f2e6d5 | 593 | /** |
| willybayot | 0:4db361f2e6d5 | 594 | * @brief Gets the SD card data response. |
| willybayot | 0:4db361f2e6d5 | 595 | * @param None |
| willybayot | 0:4db361f2e6d5 | 596 | * @retval The SD status: Read data response xxx0<status>1 |
| willybayot | 0:4db361f2e6d5 | 597 | * - status 010: Data accecpted |
| willybayot | 0:4db361f2e6d5 | 598 | * - status 101: Data rejected due to a crc error |
| willybayot | 0:4db361f2e6d5 | 599 | * - status 110: Data rejected due to a Write error. |
| willybayot | 0:4db361f2e6d5 | 600 | * - status 111: Data rejected due to other error. |
| willybayot | 0:4db361f2e6d5 | 601 | */ |
| willybayot | 0:4db361f2e6d5 | 602 | static uint8_t SD_GetDataResponse(void) |
| willybayot | 0:4db361f2e6d5 | 603 | { |
| willybayot | 0:4db361f2e6d5 | 604 | uint32_t counter = 0; |
| willybayot | 0:4db361f2e6d5 | 605 | uint8_t response = SD_RESPONSE_FAILURE; |
| willybayot | 0:4db361f2e6d5 | 606 | uint8_t rvalue = SD_DATA_OTHER_ERROR; |
| willybayot | 0:4db361f2e6d5 | 607 | |
| willybayot | 0:4db361f2e6d5 | 608 | while (counter <= 64) |
| willybayot | 0:4db361f2e6d5 | 609 | { |
| willybayot | 0:4db361f2e6d5 | 610 | /* Read response */ |
| willybayot | 0:4db361f2e6d5 | 611 | response = SD_IO_ReadByte(); |
| willybayot | 0:4db361f2e6d5 | 612 | |
| willybayot | 0:4db361f2e6d5 | 613 | /* Mask unused bits */ |
| willybayot | 0:4db361f2e6d5 | 614 | response &= 0x1F; |
| willybayot | 0:4db361f2e6d5 | 615 | switch (response) |
| willybayot | 0:4db361f2e6d5 | 616 | { |
| willybayot | 0:4db361f2e6d5 | 617 | case SD_DATA_OK: |
| willybayot | 0:4db361f2e6d5 | 618 | { |
| willybayot | 0:4db361f2e6d5 | 619 | rvalue = SD_DATA_OK; |
| willybayot | 0:4db361f2e6d5 | 620 | break; |
| willybayot | 0:4db361f2e6d5 | 621 | } |
| willybayot | 0:4db361f2e6d5 | 622 | case SD_DATA_CRC_ERROR: |
| willybayot | 0:4db361f2e6d5 | 623 | return SD_DATA_CRC_ERROR; |
| willybayot | 0:4db361f2e6d5 | 624 | case SD_DATA_WRITE_ERROR: |
| willybayot | 0:4db361f2e6d5 | 625 | return SD_DATA_WRITE_ERROR; |
| willybayot | 0:4db361f2e6d5 | 626 | default: |
| willybayot | 0:4db361f2e6d5 | 627 | { |
| willybayot | 0:4db361f2e6d5 | 628 | rvalue = SD_DATA_OTHER_ERROR; |
| willybayot | 0:4db361f2e6d5 | 629 | break; |
| willybayot | 0:4db361f2e6d5 | 630 | } |
| willybayot | 0:4db361f2e6d5 | 631 | } |
| willybayot | 0:4db361f2e6d5 | 632 | /* Exit loop in case of data ok */ |
| willybayot | 0:4db361f2e6d5 | 633 | if (rvalue == SD_DATA_OK) |
| willybayot | 0:4db361f2e6d5 | 634 | break; |
| willybayot | 0:4db361f2e6d5 | 635 | |
| willybayot | 0:4db361f2e6d5 | 636 | /* Increment loop counter */ |
| willybayot | 0:4db361f2e6d5 | 637 | counter++; |
| willybayot | 0:4db361f2e6d5 | 638 | } |
| willybayot | 0:4db361f2e6d5 | 639 | |
| willybayot | 0:4db361f2e6d5 | 640 | /* Wait null data */ |
| willybayot | 0:4db361f2e6d5 | 641 | while (SD_IO_ReadByte() == 0); |
| willybayot | 0:4db361f2e6d5 | 642 | |
| willybayot | 0:4db361f2e6d5 | 643 | /* Return response */ |
| willybayot | 0:4db361f2e6d5 | 644 | return response; |
| willybayot | 0:4db361f2e6d5 | 645 | } |
| willybayot | 0:4db361f2e6d5 | 646 | |
| willybayot | 0:4db361f2e6d5 | 647 | /** |
| willybayot | 0:4db361f2e6d5 | 648 | * @brief Returns the SD status. |
| willybayot | 0:4db361f2e6d5 | 649 | * @param None |
| willybayot | 0:4db361f2e6d5 | 650 | * @retval The SD status. |
| willybayot | 0:4db361f2e6d5 | 651 | */ |
| willybayot | 0:4db361f2e6d5 | 652 | uint8_t BSP_SD_GetStatus(void) |
| willybayot | 0:4db361f2e6d5 | 653 | { |
| willybayot | 0:4db361f2e6d5 | 654 | uint16_t status = 0; |
| willybayot | 0:4db361f2e6d5 | 655 | |
| willybayot | 0:4db361f2e6d5 | 656 | /* Send CMD13 (SD_SEND_STATUS) to get SD status */ |
| willybayot | 0:4db361f2e6d5 | 657 | SD_SendCmd(SD_CMD_SEND_STATUS, 0, 0xFF, SD_NO_RESPONSE_EXPECTED); |
| willybayot | 0:4db361f2e6d5 | 658 | |
| willybayot | 0:4db361f2e6d5 | 659 | status = SD_IO_ReadByte(); |
| willybayot | 0:4db361f2e6d5 | 660 | status |= (uint16_t)(SD_IO_ReadByte() << 8); |
| willybayot | 0:4db361f2e6d5 | 661 | |
| willybayot | 0:4db361f2e6d5 | 662 | /* Send Dummy Byte */ |
| willybayot | 0:4db361f2e6d5 | 663 | SD_IO_WriteDummy(); |
| willybayot | 0:4db361f2e6d5 | 664 | |
| willybayot | 0:4db361f2e6d5 | 665 | /* Find SD status according to card state */ |
| willybayot | 0:4db361f2e6d5 | 666 | if (status == SD_RESPONSE_NO_ERROR) |
| willybayot | 0:4db361f2e6d5 | 667 | { |
| willybayot | 0:4db361f2e6d5 | 668 | return MSD_OK; |
| willybayot | 0:4db361f2e6d5 | 669 | } |
| willybayot | 0:4db361f2e6d5 | 670 | else |
| willybayot | 0:4db361f2e6d5 | 671 | { |
| willybayot | 0:4db361f2e6d5 | 672 | return MSD_ERROR; |
| willybayot | 0:4db361f2e6d5 | 673 | } |
| willybayot | 0:4db361f2e6d5 | 674 | } |
| willybayot | 0:4db361f2e6d5 | 675 | |
| willybayot | 0:4db361f2e6d5 | 676 | /** |
| willybayot | 0:4db361f2e6d5 | 677 | * @brief Put the SD in Idle state. |
| willybayot | 0:4db361f2e6d5 | 678 | * @param None |
| willybayot | 0:4db361f2e6d5 | 679 | * @retval SD status |
| willybayot | 0:4db361f2e6d5 | 680 | */ |
| willybayot | 0:4db361f2e6d5 | 681 | static uint8_t SD_GoIdleState(void) |
| willybayot | 0:4db361f2e6d5 | 682 | { |
| willybayot | 0:4db361f2e6d5 | 683 | /* Send CMD0 (SD_CMD_GO_IDLE_STATE) to put SD in SPI mode and |
| willybayot | 0:4db361f2e6d5 | 684 | wait for In Idle State Response (R1 Format) equal to 0x01 */ |
| willybayot | 0:4db361f2e6d5 | 685 | if (SD_SendCmd(SD_CMD_GO_IDLE_STATE, 0, 0x95, SD_IN_IDLE_STATE) != SD_RESPONSE_NO_ERROR) |
| willybayot | 0:4db361f2e6d5 | 686 | { |
| willybayot | 0:4db361f2e6d5 | 687 | /* No Idle State Response: return response failue */ |
| willybayot | 0:4db361f2e6d5 | 688 | return SD_RESPONSE_FAILURE; |
| willybayot | 0:4db361f2e6d5 | 689 | } |
| willybayot | 0:4db361f2e6d5 | 690 | |
| willybayot | 0:4db361f2e6d5 | 691 | /*----------Activates the card initialization process-----------*/ |
| willybayot | 0:4db361f2e6d5 | 692 | /* Send CMD1 (Activates the card process) until response equal to 0x0 and |
| willybayot | 0:4db361f2e6d5 | 693 | Wait for no error Response (R1 Format) equal to 0x00 */ |
| willybayot | 0:4db361f2e6d5 | 694 | while (SD_SendCmd(SD_CMD_SEND_OP_COND, 0, 0xFF, SD_RESPONSE_NO_ERROR) != SD_RESPONSE_NO_ERROR); |
| willybayot | 0:4db361f2e6d5 | 695 | |
| willybayot | 0:4db361f2e6d5 | 696 | return SD_RESPONSE_NO_ERROR; |
| willybayot | 0:4db361f2e6d5 | 697 | } |
| willybayot | 0:4db361f2e6d5 | 698 | |
| willybayot | 0:4db361f2e6d5 | 699 | /** |
| willybayot | 0:4db361f2e6d5 | 700 | * @brief Erases the specified memory area of the given SD card. |
| willybayot | 0:4db361f2e6d5 | 701 | * @param StartAddr: Start byte address |
| willybayot | 0:4db361f2e6d5 | 702 | * @param EndAddr: End byte address |
| willybayot | 0:4db361f2e6d5 | 703 | * @retval SD status |
| willybayot | 0:4db361f2e6d5 | 704 | */ |
| willybayot | 0:4db361f2e6d5 | 705 | uint8_t BSP_SD_Erase(uint32_t StartAddr, uint32_t EndAddr) |
| willybayot | 0:4db361f2e6d5 | 706 | { |
| willybayot | 0:4db361f2e6d5 | 707 | uint8_t rvalue = SD_RESPONSE_FAILURE; |
| willybayot | 0:4db361f2e6d5 | 708 | |
| willybayot | 0:4db361f2e6d5 | 709 | /* Send CMD32 (Erase group start) and check if the SD acknowledged the erase command: R1 response (0x00: no errors) */ |
| willybayot | 0:4db361f2e6d5 | 710 | if (!SD_SendCmd(SD_CMD_SD_ERASE_GRP_START, StartAddr, 0xFF, SD_RESPONSE_NO_ERROR)) |
| willybayot | 0:4db361f2e6d5 | 711 | { |
| willybayot | 0:4db361f2e6d5 | 712 | /* Send CMD33 (Erase group end) and Check if the SD acknowledged the erase command: R1 response (0x00: no errors) */ |
| willybayot | 0:4db361f2e6d5 | 713 | if (!SD_SendCmd(SD_CMD_SD_ERASE_GRP_END, EndAddr, 0xFF, SD_RESPONSE_NO_ERROR)) |
| willybayot | 0:4db361f2e6d5 | 714 | { |
| willybayot | 0:4db361f2e6d5 | 715 | /* Send CMD38 (Erase) and Check if the SD acknowledged the erase command: R1 response (0x00: no errors) */ |
| willybayot | 0:4db361f2e6d5 | 716 | if (!SD_SendCmd(SD_CMD_ERASE, 0, 0xFF, SD_RESPONSE_NO_ERROR)) |
| willybayot | 0:4db361f2e6d5 | 717 | { |
| willybayot | 0:4db361f2e6d5 | 718 | /* Verify that SD card is ready to use after the specific command ERASE */ |
| willybayot | 0:4db361f2e6d5 | 719 | rvalue = (uint8_t)SD_IO_WaitResponse(SD_RESPONSE_NO_ERROR); |
| willybayot | 0:4db361f2e6d5 | 720 | } |
| willybayot | 0:4db361f2e6d5 | 721 | } |
| willybayot | 0:4db361f2e6d5 | 722 | } |
| willybayot | 0:4db361f2e6d5 | 723 | |
| willybayot | 0:4db361f2e6d5 | 724 | /* Return the reponse */ |
| willybayot | 0:4db361f2e6d5 | 725 | if (rvalue == SD_RESPONSE_NO_ERROR) |
| willybayot | 0:4db361f2e6d5 | 726 | { |
| willybayot | 0:4db361f2e6d5 | 727 | return MSD_OK; |
| willybayot | 0:4db361f2e6d5 | 728 | } |
| willybayot | 0:4db361f2e6d5 | 729 | else |
| willybayot | 0:4db361f2e6d5 | 730 | { |
| willybayot | 0:4db361f2e6d5 | 731 | return MSD_ERROR; |
| willybayot | 0:4db361f2e6d5 | 732 | } |
| willybayot | 0:4db361f2e6d5 | 733 | } |
| willybayot | 0:4db361f2e6d5 | 734 | |
| willybayot | 0:4db361f2e6d5 | 735 | /** |
| willybayot | 0:4db361f2e6d5 | 736 | * @} |
| willybayot | 0:4db361f2e6d5 | 737 | */ |
| willybayot | 0:4db361f2e6d5 | 738 | |
| willybayot | 0:4db361f2e6d5 | 739 | /** |
| willybayot | 0:4db361f2e6d5 | 740 | * @} |
| willybayot | 0:4db361f2e6d5 | 741 | */ |
| willybayot | 0:4db361f2e6d5 | 742 | |
| willybayot | 0:4db361f2e6d5 | 743 | /** |
| willybayot | 0:4db361f2e6d5 | 744 | * @} |
| willybayot | 0:4db361f2e6d5 | 745 | */ |
| willybayot | 0:4db361f2e6d5 | 746 | |
| willybayot | 0:4db361f2e6d5 | 747 | /** |
| willybayot | 0:4db361f2e6d5 | 748 | * @} |
| willybayot | 0:4db361f2e6d5 | 749 | */ |
| willybayot | 0:4db361f2e6d5 | 750 | |
| willybayot | 0:4db361f2e6d5 | 751 | /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ |