diff libs/STM32F10x_StdPeriph_Lib_V3.5.0/Utilities/STM32_EVAL/STM3210E_EVAL/stm3210e_eval.c @ 0:c59513fd84fb

Initial commit of STM32 test code.
author Daniel O'Connor <darius@dons.net.au>
date Mon, 03 Oct 2011 21:19:15 +1030
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children
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/libs/STM32F10x_StdPeriph_Lib_V3.5.0/Utilities/STM32_EVAL/STM3210E_EVAL/stm3210e_eval.c	Mon Oct 03 21:19:15 2011 +1030
@@ -0,0 +1,667 @@
+/**
+  ******************************************************************************
+  * @file    stm3210e_eval.c
+  * @author  MCD Application Team
+  * @version V4.5.0
+  * @date    07-March-2011
+  * @brief   This file provides
+  *            - set of firmware functions to manage Leds, push-button and COM ports
+  *            - low level initialization functions for SD card (on SDIO), SPI serial
+  *              flash (sFLASH) and temperature sensor (LM75)
+  *          available on STM3210E-EVAL evaluation board from STMicroelectronics.  
+  ******************************************************************************
+  * @attention
+  *
+  * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
+  * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE
+  * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY
+  * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING
+  * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE
+  * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
+  *
+  * <h2><center>&copy; COPYRIGHT 2011 STMicroelectronics</center></h2>
+  ******************************************************************************  
+  */ 
+  
+/* Includes ------------------------------------------------------------------*/
+#include "stm3210e_eval.h"
+#include "stm32f10x_spi.h"
+#include "stm32f10x_i2c.h"
+#include "stm32f10x_sdio.h"
+#include "stm32f10x_dma.h"
+
+/** @addtogroup Utilities
+  * @{
+  */ 
+
+/** @addtogroup STM32_EVAL
+  * @{
+  */ 
+
+/** @addtogroup STM3210E_EVAL
+  * @{
+  */ 
+      
+/** @defgroup STM3210E_EVAL_LOW_LEVEL 
+  * @brief This file provides firmware functions to manage Leds, push-buttons, 
+  *        COM ports, SD card on SDIO, serial flash (sFLASH), serial EEPROM (sEE) 
+  *        and temperature sensor (LM75) available on STM3210E-EVAL evaluation 
+  *        board from STMicroelectronics.
+  * @{
+  */ 
+
+/** @defgroup STM3210E_EVAL_LOW_LEVEL_Private_TypesDefinitions
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+
+/** @defgroup STM3210E_EVAL_LOW_LEVEL_Private_Defines
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+
+/** @defgroup STM3210E_EVAL_LOW_LEVEL_Private_Macros
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+
+/** @defgroup STM3210E_EVAL_LOW_LEVEL_Private_Variables
+  * @{
+  */ 
+GPIO_TypeDef* GPIO_PORT[LEDn] = {LED1_GPIO_PORT, LED2_GPIO_PORT, LED3_GPIO_PORT,
+                                 LED4_GPIO_PORT};
+const uint16_t GPIO_PIN[LEDn] = {LED1_PIN, LED2_PIN, LED3_PIN,
+                                 LED4_PIN};
+const uint32_t GPIO_CLK[LEDn] = {LED1_GPIO_CLK, LED2_GPIO_CLK, LED3_GPIO_CLK,
+                                 LED4_GPIO_CLK};
+
+GPIO_TypeDef* BUTTON_PORT[BUTTONn] = {WAKEUP_BUTTON_GPIO_PORT, TAMPER_BUTTON_GPIO_PORT, 
+                                      KEY_BUTTON_GPIO_PORT, RIGHT_BUTTON_GPIO_PORT,
+                                      LEFT_BUTTON_GPIO_PORT, UP_BUTTON_GPIO_PORT,
+                                      DOWN_BUTTON_GPIO_PORT, SEL_BUTTON_GPIO_PORT}; 
+
+const uint16_t BUTTON_PIN[BUTTONn] = {WAKEUP_BUTTON_PIN, TAMPER_BUTTON_PIN, 
+                                      KEY_BUTTON_PIN, RIGHT_BUTTON_PIN,
+                                      LEFT_BUTTON_PIN, UP_BUTTON_PIN,
+                                      DOWN_BUTTON_PIN, SEL_BUTTON_PIN}; 
+
+const uint32_t BUTTON_CLK[BUTTONn] = {WAKEUP_BUTTON_GPIO_CLK, TAMPER_BUTTON_GPIO_CLK,
+                                      KEY_BUTTON_GPIO_CLK, RIGHT_BUTTON_GPIO_CLK,
+                                      LEFT_BUTTON_GPIO_CLK, UP_BUTTON_GPIO_CLK,
+                                      DOWN_BUTTON_GPIO_CLK, SEL_BUTTON_GPIO_CLK};
+
+const uint16_t BUTTON_EXTI_LINE[BUTTONn] = {WAKEUP_BUTTON_EXTI_LINE,
+                                            TAMPER_BUTTON_EXTI_LINE, 
+                                            KEY_BUTTON_EXTI_LINE,
+                                            RIGHT_BUTTON_EXTI_LINE,
+                                            LEFT_BUTTON_EXTI_LINE,
+                                            UP_BUTTON_EXTI_LINE,
+                                            DOWN_BUTTON_EXTI_LINE,
+                                            SEL_BUTTON_EXTI_LINE};
+
+const uint16_t BUTTON_PORT_SOURCE[BUTTONn] = {WAKEUP_BUTTON_EXTI_PORT_SOURCE,
+                                              TAMPER_BUTTON_EXTI_PORT_SOURCE, 
+                                              KEY_BUTTON_EXTI_PORT_SOURCE,
+                                              RIGHT_BUTTON_EXTI_PORT_SOURCE,
+                                              LEFT_BUTTON_EXTI_PORT_SOURCE,
+                                              UP_BUTTON_EXTI_PORT_SOURCE,
+                                              DOWN_BUTTON_EXTI_PORT_SOURCE,
+                                              SEL_BUTTON_EXTI_PORT_SOURCE};
+								 
+const uint16_t BUTTON_PIN_SOURCE[BUTTONn] = {WAKEUP_BUTTON_EXTI_PIN_SOURCE,
+                                             TAMPER_BUTTON_EXTI_PIN_SOURCE, 
+                                             KEY_BUTTON_EXTI_PIN_SOURCE,
+                                             RIGHT_BUTTON_EXTI_PIN_SOURCE,
+                                             LEFT_BUTTON_EXTI_PIN_SOURCE,
+                                             UP_BUTTON_EXTI_PIN_SOURCE,
+                                             DOWN_BUTTON_EXTI_PIN_SOURCE,
+                                             SEL_BUTTON_EXTI_PIN_SOURCE}; 
+
+const uint16_t BUTTON_IRQn[BUTTONn] = {WAKEUP_BUTTON_EXTI_IRQn, TAMPER_BUTTON_EXTI_IRQn, 
+                                       KEY_BUTTON_EXTI_IRQn, RIGHT_BUTTON_EXTI_IRQn,
+                                       LEFT_BUTTON_EXTI_IRQn, UP_BUTTON_EXTI_IRQn,
+                                       DOWN_BUTTON_EXTI_IRQn, SEL_BUTTON_EXTI_IRQn};
+
+USART_TypeDef* COM_USART[COMn] = {EVAL_COM1, EVAL_COM2}; 
+
+GPIO_TypeDef* COM_TX_PORT[COMn] = {EVAL_COM1_TX_GPIO_PORT, EVAL_COM2_TX_GPIO_PORT};
+ 
+GPIO_TypeDef* COM_RX_PORT[COMn] = {EVAL_COM1_RX_GPIO_PORT, EVAL_COM2_RX_GPIO_PORT};
+ 
+const uint32_t COM_USART_CLK[COMn] = {EVAL_COM1_CLK, EVAL_COM2_CLK};
+
+const uint32_t COM_TX_PORT_CLK[COMn] = {EVAL_COM1_TX_GPIO_CLK, EVAL_COM2_TX_GPIO_CLK};
+ 
+const uint32_t COM_RX_PORT_CLK[COMn] = {EVAL_COM1_RX_GPIO_CLK, EVAL_COM2_RX_GPIO_CLK};
+
+const uint16_t COM_TX_PIN[COMn] = {EVAL_COM1_TX_PIN, EVAL_COM2_TX_PIN};
+
+const uint16_t COM_RX_PIN[COMn] = {EVAL_COM1_RX_PIN, EVAL_COM2_RX_PIN};
+
+/**
+  * @}
+  */ 
+
+
+/** @defgroup STM3210E_EVAL_LOW_LEVEL_Private_FunctionPrototypes
+  * @{
+  */ 
+
+/**
+  * @}
+  */ 
+
+
+/** @defgroup STM3210E_EVAL_LOW_LEVEL_Private_Functions
+  * @{
+  */ 
+
+/**
+  * @brief  Configures LED GPIO.
+  * @param  Led: Specifies the Led to be configured. 
+  *   This parameter can be one of following parameters:
+  *     @arg LED1
+  *     @arg LED2
+  *     @arg LED3
+  *     @arg LED4
+  * @retval None
+  */
+void STM_EVAL_LEDInit(Led_TypeDef Led)
+{
+  GPIO_InitTypeDef  GPIO_InitStructure;
+  
+  /* Enable the GPIO_LED Clock */
+  RCC_APB2PeriphClockCmd(GPIO_CLK[Led], ENABLE);
+
+  /* Configure the GPIO_LED pin */
+  GPIO_InitStructure.GPIO_Pin = GPIO_PIN[Led];
+  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
+  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
+
+  GPIO_Init(GPIO_PORT[Led], &GPIO_InitStructure);
+}
+
+/**
+  * @brief  Turns selected LED On.
+  * @param  Led: Specifies the Led to be set on. 
+  *   This parameter can be one of following parameters:
+  *     @arg LED1
+  *     @arg LED2
+  *     @arg LED3
+  *     @arg LED4  
+  * @retval None
+  */
+void STM_EVAL_LEDOn(Led_TypeDef Led)
+{
+  GPIO_PORT[Led]->BSRR = GPIO_PIN[Led];     
+}
+
+/**
+  * @brief  Turns selected LED Off.
+  * @param  Led: Specifies the Led to be set off. 
+  *   This parameter can be one of following parameters:
+  *     @arg LED1
+  *     @arg LED2
+  *     @arg LED3
+  *     @arg LED4 
+  * @retval None
+  */
+void STM_EVAL_LEDOff(Led_TypeDef Led)
+{
+  GPIO_PORT[Led]->BRR = GPIO_PIN[Led];    
+}
+
+/**
+  * @brief  Toggles the selected LED.
+  * @param  Led: Specifies the Led to be toggled. 
+  *   This parameter can be one of following parameters:
+  *     @arg LED1
+  *     @arg LED2
+  *     @arg LED3
+  *     @arg LED4  
+  * @retval None
+  */
+void STM_EVAL_LEDToggle(Led_TypeDef Led)
+{
+  GPIO_PORT[Led]->ODR ^= GPIO_PIN[Led];
+}
+
+/**
+  * @brief  Configures Button GPIO and EXTI Line.
+  * @param  Button: Specifies the Button to be configured.
+  *   This parameter can be one of following parameters:   
+  *     @arg BUTTON_WAKEUP: Wakeup Push Button
+  *     @arg BUTTON_TAMPER: Tamper Push Button  
+  *     @arg BUTTON_KEY: Key Push Button 
+  *     @arg BUTTON_RIGHT: Joystick Right Push Button 
+  *     @arg BUTTON_LEFT: Joystick Left Push Button 
+  *     @arg BUTTON_UP: Joystick Up Push Button 
+  *     @arg BUTTON_DOWN: Joystick Down Push Button
+  *     @arg BUTTON_SEL: Joystick Sel Push Button
+  * @param  Button_Mode: Specifies Button mode.
+  *   This parameter can be one of following parameters:   
+  *     @arg BUTTON_MODE_GPIO: Button will be used as simple IO 
+  *     @arg BUTTON_MODE_EXTI: Button will be connected to EXTI line with interrupt
+  *                     generation capability  
+  * @retval None
+  */
+void STM_EVAL_PBInit(Button_TypeDef Button, ButtonMode_TypeDef Button_Mode)
+{
+  GPIO_InitTypeDef GPIO_InitStructure;
+  EXTI_InitTypeDef EXTI_InitStructure;
+  NVIC_InitTypeDef NVIC_InitStructure;
+
+  /* Enable the BUTTON Clock */
+  RCC_APB2PeriphClockCmd(BUTTON_CLK[Button] | RCC_APB2Periph_AFIO, ENABLE);
+
+  /* Configure Button pin as input floating */
+  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
+  GPIO_InitStructure.GPIO_Pin = BUTTON_PIN[Button];
+  GPIO_Init(BUTTON_PORT[Button], &GPIO_InitStructure);
+
+
+  if (Button_Mode == BUTTON_MODE_EXTI)
+  {
+    /* Connect Button EXTI Line to Button GPIO Pin */
+    GPIO_EXTILineConfig(BUTTON_PORT_SOURCE[Button], BUTTON_PIN_SOURCE[Button]);
+
+    /* Configure Button EXTI line */
+    EXTI_InitStructure.EXTI_Line = BUTTON_EXTI_LINE[Button];
+    EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
+
+    if(Button != BUTTON_WAKEUP)
+    {
+      EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling;  
+    }
+    else
+    {
+      EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Rising;  
+    }
+    EXTI_InitStructure.EXTI_LineCmd = ENABLE;
+    EXTI_Init(&EXTI_InitStructure);
+
+    /* Enable and set Button EXTI Interrupt to the lowest priority */
+    NVIC_InitStructure.NVIC_IRQChannel = BUTTON_IRQn[Button];
+    NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0x0F;
+    NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0x0F;
+    NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
+
+    NVIC_Init(&NVIC_InitStructure); 
+  }
+}
+
+/**
+  * @brief  Returns the selected Button state.
+  * @param  Button: Specifies the Button to be checked.
+  *   This parameter can be one of following parameters:    
+  *     @arg BUTTON_WAKEUP: Wakeup Push Button
+  *     @arg BUTTON_TAMPER: Tamper Push Button  
+  *     @arg BUTTON_KEY: Key Push Button 
+  *     @arg BUTTON_RIGHT: Joystick Right Push Button 
+  *     @arg BUTTON_LEFT: Joystick Left Push Button 
+  *     @arg BUTTON_UP: Joystick Up Push Button 
+  *     @arg BUTTON_DOWN: Joystick Down Push Button
+  *     @arg BUTTON_SEL: Joystick Sel Push Button    
+  * @retval The Button GPIO pin value.
+  */
+uint32_t STM_EVAL_PBGetState(Button_TypeDef Button)
+{
+  return GPIO_ReadInputDataBit(BUTTON_PORT[Button], BUTTON_PIN[Button]);
+}
+
+/**
+  * @brief  Configures COM port.
+  * @param  COM: Specifies the COM port to be configured.
+  *   This parameter can be one of following parameters:    
+  *     @arg COM1
+  *     @arg COM2  
+  * @param  USART_InitStruct: pointer to a USART_InitTypeDef structure that
+  *   contains the configuration information for the specified USART peripheral.
+  * @retval None
+  */
+void STM_EVAL_COMInit(COM_TypeDef COM, USART_InitTypeDef* USART_InitStruct)
+{
+  GPIO_InitTypeDef GPIO_InitStructure;
+
+  /* Enable GPIO clock */
+  RCC_APB2PeriphClockCmd(COM_TX_PORT_CLK[COM] | COM_RX_PORT_CLK[COM] | RCC_APB2Periph_AFIO, ENABLE);
+
+  /* Enable UART clock */
+  if (COM == COM1)
+  {
+    RCC_APB2PeriphClockCmd(COM_USART_CLK[COM], ENABLE); 
+  }
+  else
+  {
+    RCC_APB1PeriphClockCmd(COM_USART_CLK[COM], ENABLE);
+  }
+
+  /* Configure USART Tx as alternate function push-pull */
+  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
+  GPIO_InitStructure.GPIO_Pin = COM_TX_PIN[COM];
+  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
+  GPIO_Init(COM_TX_PORT[COM], &GPIO_InitStructure);
+
+  /* Configure USART Rx as input floating */
+  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
+  GPIO_InitStructure.GPIO_Pin = COM_RX_PIN[COM];
+  GPIO_Init(COM_RX_PORT[COM], &GPIO_InitStructure);
+
+  /* USART configuration */
+  USART_Init(COM_USART[COM], USART_InitStruct);
+    
+  /* Enable USART */
+  USART_Cmd(COM_USART[COM], ENABLE);
+}
+
+/**
+  * @brief  DeInitializes the SDIO interface.
+  * @param  None
+  * @retval None
+  */
+void SD_LowLevel_DeInit(void)
+{
+  GPIO_InitTypeDef  GPIO_InitStructure;
+  
+  /*!< Disable SDIO Clock */
+  SDIO_ClockCmd(DISABLE);
+  
+  /*!< Set Power State to OFF */
+  SDIO_SetPowerState(SDIO_PowerState_OFF);
+
+  /*!< DeInitializes the SDIO peripheral */
+  SDIO_DeInit();
+  
+  /*!< Disable the SDIO AHB Clock */
+  RCC_AHBPeriphClockCmd(RCC_AHBPeriph_SDIO, DISABLE);
+
+  /*!< Configure PC.08, PC.09, PC.10, PC.11, PC.12 pin: D0, D1, D2, D3, CLK pin */
+  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8 | GPIO_Pin_9 | GPIO_Pin_10 | GPIO_Pin_11 | GPIO_Pin_12;
+  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
+  GPIO_Init(GPIOC, &GPIO_InitStructure);
+
+  /*!< Configure PD.02 CMD line */
+  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2;
+  GPIO_Init(GPIOD, &GPIO_InitStructure);
+}
+
+/**
+  * @brief  Initializes the SD Card and put it into StandBy State (Ready for 
+  *         data transfer).
+  * @param  None
+  * @retval None
+  */
+void SD_LowLevel_Init(void)
+{
+  GPIO_InitTypeDef  GPIO_InitStructure;
+
+  /*!< GPIOC and GPIOD Periph clock enable */
+  RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOC | RCC_APB2Periph_GPIOD | SD_DETECT_GPIO_CLK, ENABLE);
+
+  /*!< Configure PC.08, PC.09, PC.10, PC.11, PC.12 pin: D0, D1, D2, D3, CLK pin */
+  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8 | GPIO_Pin_9 | GPIO_Pin_10 | GPIO_Pin_11 | GPIO_Pin_12;
+  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
+  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
+  GPIO_Init(GPIOC, &GPIO_InitStructure);
+
+  /*!< Configure PD.02 CMD line */
+  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2;
+  GPIO_Init(GPIOD, &GPIO_InitStructure);
+
+  /*!< Configure SD_SPI_DETECT_PIN pin: SD Card detect pin */
+  GPIO_InitStructure.GPIO_Pin = SD_DETECT_PIN;
+  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU;
+  GPIO_Init(SD_DETECT_GPIO_PORT, &GPIO_InitStructure);
+  
+  /*!< Enable the SDIO AHB Clock */
+  RCC_AHBPeriphClockCmd(RCC_AHBPeriph_SDIO, ENABLE);
+
+  /*!< Enable the DMA2 Clock */
+  RCC_AHBPeriphClockCmd(RCC_AHBPeriph_DMA2, ENABLE);
+}
+
+/**
+  * @brief  Configures the DMA2 Channel4 for SDIO Tx request.
+  * @param  BufferSRC: pointer to the source buffer
+  * @param  BufferSize: buffer size
+  * @retval None
+  */
+void SD_LowLevel_DMA_TxConfig(uint32_t *BufferSRC, uint32_t BufferSize)
+{
+
+  DMA_InitTypeDef DMA_InitStructure;
+
+  DMA_ClearFlag(DMA2_FLAG_TC4 | DMA2_FLAG_TE4 | DMA2_FLAG_HT4 | DMA2_FLAG_GL4);
+
+  /*!< DMA2 Channel4 disable */
+  DMA_Cmd(DMA2_Channel4, DISABLE);
+
+  /*!< DMA2 Channel4 Config */
+  DMA_InitStructure.DMA_PeripheralBaseAddr = (uint32_t)SDIO_FIFO_ADDRESS;
+  DMA_InitStructure.DMA_MemoryBaseAddr = (uint32_t)BufferSRC;
+  DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralDST;
+  DMA_InitStructure.DMA_BufferSize = BufferSize / 4;
+  DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable;
+  DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Enable;
+  DMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_Word;
+  DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_Word;
+  DMA_InitStructure.DMA_Mode = DMA_Mode_Normal;
+  DMA_InitStructure.DMA_Priority = DMA_Priority_High;
+  DMA_InitStructure.DMA_M2M = DMA_M2M_Disable;
+  DMA_Init(DMA2_Channel4, &DMA_InitStructure);
+
+  /*!< DMA2 Channel4 enable */
+  DMA_Cmd(DMA2_Channel4, ENABLE);  
+}
+
+/**
+  * @brief  Configures the DMA2 Channel4 for SDIO Rx request.
+  * @param  BufferDST: pointer to the destination buffer
+  * @param  BufferSize: buffer size
+  * @retval None
+  */
+void SD_LowLevel_DMA_RxConfig(uint32_t *BufferDST, uint32_t BufferSize)
+{
+  DMA_InitTypeDef DMA_InitStructure;
+
+  DMA_ClearFlag(DMA2_FLAG_TC4 | DMA2_FLAG_TE4 | DMA2_FLAG_HT4 | DMA2_FLAG_GL4);
+
+  /*!< DMA2 Channel4 disable */
+  DMA_Cmd(DMA2_Channel4, DISABLE);
+
+  /*!< DMA2 Channel4 Config */
+  DMA_InitStructure.DMA_PeripheralBaseAddr = (uint32_t)SDIO_FIFO_ADDRESS;
+  DMA_InitStructure.DMA_MemoryBaseAddr = (uint32_t)BufferDST;
+  DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralSRC;
+  DMA_InitStructure.DMA_BufferSize = BufferSize / 4;
+  DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable;
+  DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Enable;
+  DMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_Word;
+  DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_Word;
+  DMA_InitStructure.DMA_Mode = DMA_Mode_Normal;
+  DMA_InitStructure.DMA_Priority = DMA_Priority_High;
+  DMA_InitStructure.DMA_M2M = DMA_M2M_Disable;
+  DMA_Init(DMA2_Channel4, &DMA_InitStructure);
+
+  /*!< DMA2 Channel4 enable */
+  DMA_Cmd(DMA2_Channel4, ENABLE); 
+}
+
+/**
+  * @brief  Returns the DMA End Of Transfer Status.
+  * @param  None
+  * @retval DMA SDIO Channel Status.
+  */
+uint32_t SD_DMAEndOfTransferStatus(void)
+{
+  return (uint32_t)DMA_GetFlagStatus(DMA2_FLAG_TC4);
+}
+
+/**
+  * @brief  DeInitializes the peripherals used by the SPI FLASH driver.
+  * @param  None
+  * @retval None
+  */
+void sFLASH_LowLevel_DeInit(void)
+{
+  GPIO_InitTypeDef GPIO_InitStructure;
+
+  /*!< Disable the sFLASH_SPI  */
+  SPI_Cmd(sFLASH_SPI, DISABLE);
+  
+  /*!< DeInitializes the sFLASH_SPI */
+  SPI_I2S_DeInit(sFLASH_SPI);
+  
+  /*!< sFLASH_SPI Periph clock disable */
+  RCC_APB2PeriphClockCmd(sFLASH_SPI_CLK, DISABLE);
+  
+  /*!< Configure sFLASH_SPI pins: SCK */
+  GPIO_InitStructure.GPIO_Pin = sFLASH_SPI_SCK_PIN;
+  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
+  GPIO_Init(sFLASH_SPI_SCK_GPIO_PORT, &GPIO_InitStructure);
+
+  /*!< Configure sFLASH_SPI pins: MISO */
+  GPIO_InitStructure.GPIO_Pin = sFLASH_SPI_MISO_PIN;
+  GPIO_Init(sFLASH_SPI_MISO_GPIO_PORT, &GPIO_InitStructure);
+
+  /*!< Configure sFLASH_SPI pins: MOSI */
+  GPIO_InitStructure.GPIO_Pin = sFLASH_SPI_MOSI_PIN;
+  GPIO_Init(sFLASH_SPI_MOSI_GPIO_PORT, &GPIO_InitStructure);
+
+  /*!< Configure sFLASH_CS_PIN pin: sFLASH Card CS pin */
+  GPIO_InitStructure.GPIO_Pin = sFLASH_CS_PIN;
+  GPIO_Init(sFLASH_CS_GPIO_PORT, &GPIO_InitStructure);
+}
+
+/**
+  * @brief  Initializes the peripherals used by the SPI FLASH driver.
+  * @param  None
+  * @retval None
+  */
+void sFLASH_LowLevel_Init(void)
+{
+  GPIO_InitTypeDef GPIO_InitStructure;
+
+  /*!< sFLASH_SPI_CS_GPIO, sFLASH_SPI_MOSI_GPIO, sFLASH_SPI_MISO_GPIO 
+       and sFLASH_SPI_SCK_GPIO Periph clock enable */
+  RCC_APB2PeriphClockCmd(sFLASH_CS_GPIO_CLK | sFLASH_SPI_MOSI_GPIO_CLK | sFLASH_SPI_MISO_GPIO_CLK |
+                         sFLASH_SPI_SCK_GPIO_CLK, ENABLE);
+
+  /*!< sFLASH_SPI Periph clock enable */
+  RCC_APB2PeriphClockCmd(sFLASH_SPI_CLK, ENABLE);
+  
+  /*!< Configure sFLASH_SPI pins: SCK */
+  GPIO_InitStructure.GPIO_Pin = sFLASH_SPI_SCK_PIN;
+  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
+  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
+  GPIO_Init(sFLASH_SPI_SCK_GPIO_PORT, &GPIO_InitStructure);
+
+  /*!< Configure sFLASH_SPI pins: MOSI */
+  GPIO_InitStructure.GPIO_Pin = sFLASH_SPI_MOSI_PIN;
+  GPIO_Init(sFLASH_SPI_MOSI_GPIO_PORT, &GPIO_InitStructure);
+
+  /*!< Configure sFLASH_SPI pins: MISO */
+  GPIO_InitStructure.GPIO_Pin = sFLASH_SPI_MISO_PIN;
+  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;  
+  GPIO_Init(sFLASH_SPI_MISO_GPIO_PORT, &GPIO_InitStructure);
+  
+  /*!< Configure sFLASH_CS_PIN pin: sFLASH Card CS pin */
+  GPIO_InitStructure.GPIO_Pin = sFLASH_CS_PIN;
+  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
+  GPIO_Init(sFLASH_CS_GPIO_PORT, &GPIO_InitStructure);
+}
+
+/**
+  * @brief  DeInitializes the LM75_I2C.
+  * @param  None
+  * @retval None
+  */
+void LM75_LowLevel_DeInit(void)
+{
+  GPIO_InitTypeDef  GPIO_InitStructure;
+
+  /*!< Disable LM75_I2C */
+  I2C_Cmd(LM75_I2C, DISABLE);
+  /*!< DeInitializes the LM75_I2C */
+  I2C_DeInit(LM75_I2C);
+  
+  /*!< LM75_I2C Periph clock disable */
+  RCC_APB1PeriphClockCmd(LM75_I2C_CLK, DISABLE);
+    
+  /*!< Configure LM75_I2C pins: SCL */
+  GPIO_InitStructure.GPIO_Pin = LM75_I2C_SCL_PIN;
+  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
+  GPIO_Init(LM75_I2C_SCL_GPIO_PORT, &GPIO_InitStructure);
+
+  /*!< Configure LM75_I2C pins: SDA */
+  GPIO_InitStructure.GPIO_Pin = LM75_I2C_SDA_PIN;
+  GPIO_Init(LM75_I2C_SDA_GPIO_PORT, &GPIO_InitStructure);
+
+  /*!< Configure LM75_I2C pin: SMBUS ALERT */
+  GPIO_InitStructure.GPIO_Pin = LM75_I2C_SMBUSALERT_PIN;
+  GPIO_Init(LM75_I2C_SMBUSALERT_GPIO_PORT, &GPIO_InitStructure);
+}
+
+/**
+  * @brief  Initializes the LM75_I2C..
+  * @param  None
+  * @retval None
+  */
+void LM75_LowLevel_Init(void)
+{
+  GPIO_InitTypeDef  GPIO_InitStructure;
+
+  /*!< LM75_I2C Periph clock enable */
+  RCC_APB1PeriphClockCmd(LM75_I2C_CLK, ENABLE);
+    
+  /*!< LM75_I2C_SCL_GPIO_CLK, LM75_I2C_SDA_GPIO_CLK 
+       and LM75_I2C_SMBUSALERT_GPIO_CLK Periph clock enable */
+  RCC_APB2PeriphClockCmd(LM75_I2C_SCL_GPIO_CLK | LM75_I2C_SDA_GPIO_CLK |
+                         LM75_I2C_SMBUSALERT_GPIO_CLK, ENABLE);
+  
+  /*!< Configure LM75_I2C pins: SCL */
+  GPIO_InitStructure.GPIO_Pin = LM75_I2C_SCL_PIN;
+  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
+  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_OD;
+  GPIO_Init(LM75_I2C_SCL_GPIO_PORT, &GPIO_InitStructure);
+
+  /*!< Configure LM75_I2C pins: SDA */
+  GPIO_InitStructure.GPIO_Pin = LM75_I2C_SDA_PIN;
+  GPIO_Init(LM75_I2C_SDA_GPIO_PORT, &GPIO_InitStructure);
+
+  /*!< Configure LM75_I2C pin: SMBUS ALERT */
+  GPIO_InitStructure.GPIO_Pin = LM75_I2C_SMBUSALERT_PIN;
+  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU;
+  GPIO_Init(LM75_I2C_SMBUSALERT_GPIO_PORT, &GPIO_InitStructure); 
+}
+
+/**
+  * @}
+  */ 
+
+/**
+  * @}
+  */ 
+
+/**
+  * @}
+  */
+
+/**
+  * @}
+  */    
+
+/**
+  * @}
+  */ 
+    
+/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/