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[/] [openrisc/] [trunk/] [rtos/] [freertos-6.1.1/] [Demo/] [CORTEX_STM32L152_IAR/] [system_and_ST_code/] [STM32L152_EVAL/] [stm32l152_eval.c] - Blame information for rev 582

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/**
  ******************************************************************************
  * @file    stm32l152_eval.c
  * @author  MCD Application Team
  * @version V4.4.0RC1
  * @date    07/02/2010
  * @brief   This file provides
  *            - set of firmware functions to manage Leds, push-button and COM ports
  *            - low level initialization functions for SD card (on SPI) and
  *              temperature sensor (LM75)
  *          available on STM32L152-EVAL evaluation board from STMicroelectronics.
  ******************************************************************************
  * @copy
  *
  * 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 2010 STMicroelectronics</center></h2>
  */
 
/* Includes ------------------------------------------------------------------*/
#include "stm32l152_eval.h"
#include "stm32l1xx_spi.h"
#include "stm32l1xx_i2c.h"
 
/** @addtogroup Utilities
  * @{
  */
 
/** @addtogroup STM32_EVAL
  * @{
  */
 
/** @addtogroup STM32L152_EVAL
  * @{
  */
 
/** @defgroup STM32L152_EVAL_LOW_LEVEL
  * @brief This file provides firmware functions to manage Leds, push-buttons,
  *        COM ports, SD card on SPI and temperature sensor (LM75) available on
  *        STM32L152-EVAL evaluation board from STMicroelectronics.
  * @{
  */
 
/** @defgroup STM32L152_EVAL_LOW_LEVEL_Private_TypesDefinitions
  * @{
  */
/**
  * @}
  */
 
 
/** @defgroup STM32L152_EVAL_LOW_LEVEL_Private_Defines
  * @{
  */
/**
  * @}
  */
 
 
/** @defgroup STM32L152_EVAL_LOW_LEVEL_Private_Macros
  * @{
  */
/**
  * @}
  */
 
 
/** @defgroup STM32L152_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};
 
const uint16_t COM_TX_PIN_SOURCE[COMn] = {EVAL_COM1_TX_SOURCE, EVAL_COM2_TX_SOURCE};
 
const uint16_t COM_RX_PIN_SOURCE[COMn] = {EVAL_COM1_RX_SOURCE, EVAL_COM2_RX_SOURCE};
 
const uint16_t COM_TX_AF[COMn] = {EVAL_COM1_TX_AF, EVAL_COM2_TX_AF};
 
const uint16_t COM_RX_AF[COMn] = {EVAL_COM1_RX_AF, EVAL_COM2_RX_AF};
 
/**
  * @}
  */
 
 
/** @defgroup STM32L152_EVAL_LOW_LEVEL_Private_FunctionPrototypes
  * @{
  */
 
/**
  * @}
  */
 
/** @defgroup STM32L152_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_AHBPeriphClockCmd(GPIO_CLK[Led], ENABLE);
 
  /* Configure the GPIO_LED pin */
  GPIO_InitStructure.GPIO_Pin = GPIO_PIN[Led];
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_OUT;
  GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
  GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_40MHz;
  GPIO_Init(GPIO_PORT[Led], &GPIO_InitStructure);
  GPIO_PORT[Led]->BSRRL = GPIO_PIN[Led];
}
 
/**
  * @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]->BSRRH = 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]->BSRRL = 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_AHBPeriphClockCmd(BUTTON_CLK[Button], ENABLE);
  RCC_APB2PeriphClockCmd(RCC_APB2Periph_SYSCFG, ENABLE);
 
  /* Configure Button pin as input */
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN;
  GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
  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 */
    SYSCFG_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) && (Button != BUTTON_KEY) && (Button != BUTTON_TAMPER))
    {
      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_AHBPeriphClockCmd(COM_TX_PORT_CLK[COM] | COM_RX_PORT_CLK[COM], ENABLE);
 
  /* Enable UART clock */
  RCC_APB1PeriphClockCmd(COM_USART_CLK[COM], ENABLE);
 
  /* Connect PXx to USARTx_Tx*/
  GPIO_PinAFConfig(COM_TX_PORT[COM], COM_TX_PIN_SOURCE[COM], COM_TX_AF[COM]);
 
  /* Connect PXx to USARTx_Rx*/
  GPIO_PinAFConfig(COM_RX_PORT[COM], COM_RX_PIN_SOURCE[COM], COM_RX_AF[COM]);
 
  /* Configure USART Tx as alternate function push-pull */
  GPIO_InitStructure.GPIO_Pin = COM_TX_PIN[COM];
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_40MHz;
  GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
  GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP;
  GPIO_Init(COM_TX_PORT[COM], &GPIO_InitStructure);
 
  /* Configure USART Rx as input 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 SPI interface.
  * @param  None
  * @retval None
  */
void SD_LowLevel_DeInit(void)
{
  GPIO_InitTypeDef  GPIO_InitStructure;
 
  SPI_Cmd(SD_SPI, DISABLE); /*!< SD_SPI disable */
  SPI_DeInit(SD_SPI);   /*!< DeInitializes the SD_SPI */
 
  /*!< SD_SPI Periph clock disable */
  RCC_APB1PeriphClockCmd(SD_SPI_CLK, DISABLE);
 
  /*!< Configure SD_SPI pins: SCK */
  GPIO_InitStructure.GPIO_Pin = SD_SPI_SCK_PIN;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN;
  GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
  GPIO_Init(SD_SPI_SCK_GPIO_PORT, &GPIO_InitStructure);
 
  /*!< Configure SD_SPI pins: MISO */
  GPIO_InitStructure.GPIO_Pin = SD_SPI_MISO_PIN;
  GPIO_Init(SD_SPI_MISO_GPIO_PORT, &GPIO_InitStructure);
 
  /*!< Configure SD_SPI pins: MOSI */
  GPIO_InitStructure.GPIO_Pin = SD_SPI_MOSI_PIN;
  GPIO_Init(SD_SPI_MOSI_GPIO_PORT, &GPIO_InitStructure);
 
  /*!< Configure SD_SPI_CS_PIN pin: SD Card CS pin */
  GPIO_InitStructure.GPIO_Pin = SD_CS_PIN;
  GPIO_Init(SD_CS_GPIO_PORT, &GPIO_InitStructure);
 
  /*!< Configure SD_SPI_DETECT_PIN pin: SD Card detect pin */
  GPIO_InitStructure.GPIO_Pin = SD_DETECT_PIN;
  GPIO_Init(SD_DETECT_GPIO_PORT, &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;
  SPI_InitTypeDef   SPI_InitStructure;
 
  /*!< SD_SPI_CS_GPIO, SD_SPI_MOSI_GPIO, SD_SPI_MISO_GPIO, SD_SPI_DETECT_GPIO
       and SD_SPI_SCK_GPIO Periph clock enable */
  RCC_AHBPeriphClockCmd(SD_CS_GPIO_CLK | SD_SPI_MOSI_GPIO_CLK | SD_SPI_MISO_GPIO_CLK |
                        SD_SPI_SCK_GPIO_CLK | SD_DETECT_GPIO_CLK, ENABLE);
 
  /*!< SD_SPI Periph clock enable */
  RCC_APB1PeriphClockCmd(SD_SPI_CLK, ENABLE);
 
  /*!< Configure SD_SPI pins: SCK */
  GPIO_InitStructure.GPIO_Pin = SD_SPI_SCK_PIN;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_40MHz;
  GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
  GPIO_InitStructure.GPIO_PuPd  = GPIO_PuPd_UP;
  GPIO_Init(SD_SPI_SCK_GPIO_PORT, &GPIO_InitStructure);
 
  /*!< Configure SD_SPI pins: MISO */
  GPIO_InitStructure.GPIO_Pin = SD_SPI_MISO_PIN;
  GPIO_Init(SD_SPI_MISO_GPIO_PORT, &GPIO_InitStructure);
 
  /*!< Configure SD_SPI pins: MOSI */
  GPIO_InitStructure.GPIO_Pin = SD_SPI_MOSI_PIN;
  GPIO_Init(SD_SPI_MOSI_GPIO_PORT, &GPIO_InitStructure);
 
  /*!< Configure SD_SPI_CS_PIN pin: SD Card CS pin */
  GPIO_InitStructure.GPIO_Pin = SD_CS_PIN;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_OUT;
  GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
  GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP;
  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_40MHz;
  GPIO_Init(SD_CS_GPIO_PORT, &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_IN;
  GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP;
  GPIO_Init(SD_DETECT_GPIO_PORT, &GPIO_InitStructure);
 
  /* Connect PXx to SD_SPI_SCK */
  GPIO_PinAFConfig(SD_SPI_SCK_GPIO_PORT, SD_SPI_SCK_SOURCE, SD_SPI_SCK_AF);
 
  /* Connect PXx to SD_SPI_MISO */
  GPIO_PinAFConfig(SD_SPI_MISO_GPIO_PORT, SD_SPI_MISO_SOURCE, SD_SPI_MISO_AF);
 
  /* Connect PXx to SD_SPI_MOSI */
  GPIO_PinAFConfig(SD_SPI_MOSI_GPIO_PORT, SD_SPI_MOSI_SOURCE, SD_SPI_MOSI_AF);
 
  /*!< SD_SPI Config */
  SPI_InitStructure.SPI_Direction = SPI_Direction_2Lines_FullDuplex;
  SPI_InitStructure.SPI_Mode = SPI_Mode_Master;
  SPI_InitStructure.SPI_DataSize = SPI_DataSize_8b;
  SPI_InitStructure.SPI_CPOL = SPI_CPOL_High;
  SPI_InitStructure.SPI_CPHA = SPI_CPHA_2Edge;
  SPI_InitStructure.SPI_NSS = SPI_NSS_Soft;
  SPI_InitStructure.SPI_BaudRatePrescaler = SPI_BaudRatePrescaler_2;
 
  SPI_InitStructure.SPI_FirstBit = SPI_FirstBit_MSB;
  SPI_InitStructure.SPI_CRCPolynomial = 7;
  SPI_Init(SD_SPI, &SPI_InitStructure);
 
  SPI_Cmd(SD_SPI, ENABLE); /*!< SD_SPI enable */
}
 
/**
  * @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;
  GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
  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_AHBPeriphClockCmd(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_Mode = GPIO_Mode_AF;
  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_40MHz;
  GPIO_InitStructure.GPIO_OType = GPIO_OType_OD;
  GPIO_InitStructure.GPIO_PuPd  = GPIO_PuPd_NOPULL;
  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);
 
 
  /* Connect PXx to I2C_SCL */
  GPIO_PinAFConfig(LM75_I2C_SCL_GPIO_PORT, LM75_I2C_SCL_SOURCE, LM75_I2C_SCL_AF);
 
  /* Connect PXx to I2C_SDA */
  GPIO_PinAFConfig(LM75_I2C_SDA_GPIO_PORT, LM75_I2C_SDA_SOURCE, LM75_I2C_SDA_AF);
 
  /* Connect PXx to I2C_SMBUSALER */
  GPIO_PinAFConfig(LM75_I2C_SMBUSALERT_GPIO_PORT, LM75_I2C_SMBUSALERT_SOURCE, LM75_I2C_SMBUSALERT_AF);
}
 
/**
  * @}
  */
 
 
/**
  * @}
  */
 
/**
  * @}
  */
 
/**
  * @}
  */
 
/**
  * @}
  */
 
/******************* (C) COPYRIGHT 2010 STMicroelectronics *****END OF FILE****/

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[/] [openrisc/] [trunk/] [rtos/] [freertos-6.1.1/] [Demo/] [CORTEX_STM32L152_IAR/] [system_and_ST_code/] [STM32L152_EVAL/] [stm32l152_eval.c] - Blame information for rev 582

Line No.	Rev	Author	Line
1	582	jeremybenn	`/**`
2			`******************************************************************************`
3			`* @file stm32l152_eval.c`
4			`* @author MCD Application Team`
5			`* @version V4.4.0RC1`
6			`* @date 07/02/2010`
7			`* @brief This file provides`
8			`* - set of firmware functions to manage Leds, push-button and COM ports`
9			`* - low level initialization functions for SD card (on SPI) and`
10			`* temperature sensor (LM75)`
11			`* available on STM32L152-EVAL evaluation board from STMicroelectronics.`
12			`******************************************************************************`
13			`* @copy`
14			`*`
15			`* THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS`
16			`* WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE`
17			`* TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY`
18			`* DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING`
19			`* FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE`
20			`* CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.`
21			`*`
22			`* <h2><center>© COPYRIGHT 2010 STMicroelectronics</center></h2>`
23			`*/`
24
25			`/* Includes ------------------------------------------------------------------*/`
26			`#include "stm32l152_eval.h"`
27			`#include "stm32l1xx_spi.h"`
28			`#include "stm32l1xx_i2c.h"`
29
30			`/** @addtogroup Utilities`
31			`* @{`
32			`*/`
33
34			`/** @addtogroup STM32_EVAL`
35			`* @{`
36			`*/`
37
38			`/** @addtogroup STM32L152_EVAL`
39			`* @{`
40			`*/`
41
42			`/** @defgroup STM32L152_EVAL_LOW_LEVEL`
43			`* @brief This file provides firmware functions to manage Leds, push-buttons,`
44			`* COM ports, SD card on SPI and temperature sensor (LM75) available on`
45			`* STM32L152-EVAL evaluation board from STMicroelectronics.`
46			`* @{`
47			`*/`
48
49			`/** @defgroup STM32L152_EVAL_LOW_LEVEL_Private_TypesDefinitions`
50			`* @{`
51			`*/`
52			`/**`
53			`* @}`
54			`*/`
55
56
57			`/** @defgroup STM32L152_EVAL_LOW_LEVEL_Private_Defines`
58			`* @{`
59			`*/`
60			`/**`
61			`* @}`
62			`*/`
63
64
65			`/** @defgroup STM32L152_EVAL_LOW_LEVEL_Private_Macros`
66			`* @{`
67			`*/`
68			`/**`
69			`* @}`
70			`*/`
71
72
73			`/** @defgroup STM32L152_EVAL_LOW_LEVEL_Private_Variables`
74			`* @{`
75			`*/`
76			`GPIO_TypeDef* GPIO_PORT[LEDn] = {LED1_GPIO_PORT, LED2_GPIO_PORT, LED3_GPIO_PORT,`
77			`LED4_GPIO_PORT};`
78			`const uint16_t GPIO_PIN[LEDn] = {LED1_PIN, LED2_PIN, LED3_PIN,`
79			`LED4_PIN};`
80			`const uint32_t GPIO_CLK[LEDn] = {LED1_GPIO_CLK, LED2_GPIO_CLK, LED3_GPIO_CLK,`
81			`LED4_GPIO_CLK};`
82
83			`GPIO_TypeDef* BUTTON_PORT[BUTTONn] = {WAKEUP_BUTTON_GPIO_PORT, TAMPER_BUTTON_GPIO_PORT,`
84			`KEY_BUTTON_GPIO_PORT, RIGHT_BUTTON_GPIO_PORT,`
85			`LEFT_BUTTON_GPIO_PORT, UP_BUTTON_GPIO_PORT,`
86			`DOWN_BUTTON_GPIO_PORT, SEL_BUTTON_GPIO_PORT};`
87
88			`const uint16_t BUTTON_PIN[BUTTONn] = {WAKEUP_BUTTON_PIN, TAMPER_BUTTON_PIN,`
89			`KEY_BUTTON_PIN, RIGHT_BUTTON_PIN,`
90			`LEFT_BUTTON_PIN, UP_BUTTON_PIN,`
91			`DOWN_BUTTON_PIN, SEL_BUTTON_PIN};`
92
93			`const uint32_t BUTTON_CLK[BUTTONn] = {WAKEUP_BUTTON_GPIO_CLK, TAMPER_BUTTON_GPIO_CLK,`
94			`KEY_BUTTON_GPIO_CLK, RIGHT_BUTTON_GPIO_CLK,`
95			`LEFT_BUTTON_GPIO_CLK, UP_BUTTON_GPIO_CLK,`
96			`DOWN_BUTTON_GPIO_CLK, SEL_BUTTON_GPIO_CLK};`
97
98			`const uint16_t BUTTON_EXTI_LINE[BUTTONn] = {WAKEUP_BUTTON_EXTI_LINE,`
99			`TAMPER_BUTTON_EXTI_LINE,`
100			`KEY_BUTTON_EXTI_LINE,`
101			`RIGHT_BUTTON_EXTI_LINE,`
102			`LEFT_BUTTON_EXTI_LINE,`
103			`UP_BUTTON_EXTI_LINE,`
104			`DOWN_BUTTON_EXTI_LINE,`
105			`SEL_BUTTON_EXTI_LINE};`
106
107			`const uint16_t BUTTON_PORT_SOURCE[BUTTONn] = {WAKEUP_BUTTON_EXTI_PORT_SOURCE,`
108			`TAMPER_BUTTON_EXTI_PORT_SOURCE,`
109			`KEY_BUTTON_EXTI_PORT_SOURCE,`
110			`RIGHT_BUTTON_EXTI_PORT_SOURCE,`
111			`LEFT_BUTTON_EXTI_PORT_SOURCE,`
112			`UP_BUTTON_EXTI_PORT_SOURCE,`
113			`DOWN_BUTTON_EXTI_PORT_SOURCE,`
114			`SEL_BUTTON_EXTI_PORT_SOURCE};`
115
116			`const uint16_t BUTTON_PIN_SOURCE[BUTTONn] = {WAKEUP_BUTTON_EXTI_PIN_SOURCE,`
117			`TAMPER_BUTTON_EXTI_PIN_SOURCE,`
118			`KEY_BUTTON_EXTI_PIN_SOURCE,`
119			`RIGHT_BUTTON_EXTI_PIN_SOURCE,`
120			`LEFT_BUTTON_EXTI_PIN_SOURCE,`
121			`UP_BUTTON_EXTI_PIN_SOURCE,`
122			`DOWN_BUTTON_EXTI_PIN_SOURCE,`
123			`SEL_BUTTON_EXTI_PIN_SOURCE};`
124
125			`const uint16_t BUTTON_IRQn[BUTTONn] = {WAKEUP_BUTTON_EXTI_IRQn, TAMPER_BUTTON_EXTI_IRQn,`
126			`KEY_BUTTON_EXTI_IRQn, RIGHT_BUTTON_EXTI_IRQn,`
127			`LEFT_BUTTON_EXTI_IRQn, UP_BUTTON_EXTI_IRQn,`
128			`DOWN_BUTTON_EXTI_IRQn, SEL_BUTTON_EXTI_IRQn};`
129
130			`USART_TypeDef* COM_USART[COMn] = {EVAL_COM1, EVAL_COM2};`
131
132			`GPIO_TypeDef* COM_TX_PORT[COMn] = {EVAL_COM1_TX_GPIO_PORT, EVAL_COM2_TX_GPIO_PORT};`
133
134			`GPIO_TypeDef* COM_RX_PORT[COMn] = {EVAL_COM1_RX_GPIO_PORT, EVAL_COM2_RX_GPIO_PORT};`
135
136			`const uint32_t COM_USART_CLK[COMn] = {EVAL_COM1_CLK, EVAL_COM2_CLK};`
137
138			`const uint32_t COM_TX_PORT_CLK[COMn] = {EVAL_COM1_TX_GPIO_CLK, EVAL_COM2_TX_GPIO_CLK};`
139
140			`const uint32_t COM_RX_PORT_CLK[COMn] = {EVAL_COM1_RX_GPIO_CLK, EVAL_COM2_RX_GPIO_CLK};`
141
142			`const uint16_t COM_TX_PIN[COMn] = {EVAL_COM1_TX_PIN, EVAL_COM2_TX_PIN};`
143
144			`const uint16_t COM_RX_PIN[COMn] = {EVAL_COM1_RX_PIN, EVAL_COM2_RX_PIN};`
145
146			`const uint16_t COM_TX_PIN_SOURCE[COMn] = {EVAL_COM1_TX_SOURCE, EVAL_COM2_TX_SOURCE};`
147
148			`const uint16_t COM_RX_PIN_SOURCE[COMn] = {EVAL_COM1_RX_SOURCE, EVAL_COM2_RX_SOURCE};`
149
150			`const uint16_t COM_TX_AF[COMn] = {EVAL_COM1_TX_AF, EVAL_COM2_TX_AF};`
151
152			`const uint16_t COM_RX_AF[COMn] = {EVAL_COM1_RX_AF, EVAL_COM2_RX_AF};`
153
154			`/**`
155			`* @}`
156			`*/`
157
158
159			`/** @defgroup STM32L152_EVAL_LOW_LEVEL_Private_FunctionPrototypes`
160			`* @{`
161			`*/`
162
163			`/**`
164			`* @}`
165			`*/`
166
167			`/** @defgroup STM32L152_EVAL_LOW_LEVEL_Private_Functions`
168			`* @{`
169			`*/`
170
171			`/**`
172			`* @brief Configures LED GPIO.`
173			`* @param Led: Specifies the Led to be configured.`
174			`* This parameter can be one of following parameters:`
175			`* @arg LED1`
176			`* @arg LED2`
177			`* @arg LED3`
178			`* @arg LED4`
179			`* @retval None`
180			`*/`
181			`void STM_EVAL_LEDInit(Led_TypeDef Led)`
182			`{`
183			`GPIO_InitTypeDef GPIO_InitStructure;`
184
185			`/* Enable the GPIO_LED Clock */`
186			`RCC_AHBPeriphClockCmd(GPIO_CLK[Led], ENABLE);`
187
188			`/* Configure the GPIO_LED pin */`
189			`GPIO_InitStructure.GPIO_Pin = GPIO_PIN[Led];`
190			`GPIO_InitStructure.GPIO_Mode = GPIO_Mode_OUT;`
191			`GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;`
192			`GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;`
193			`GPIO_InitStructure.GPIO_Speed = GPIO_Speed_40MHz;`
194			`GPIO_Init(GPIO_PORT[Led], &GPIO_InitStructure);`
195			`GPIO_PORT[Led]->BSRRL = GPIO_PIN[Led];`
196			`}`
197
198			`/**`
199			`* @brief Turns selected LED On.`
200			`* @param Led: Specifies the Led to be set on.`
201			`* This parameter can be one of following parameters:`
202			`* @arg LED1`
203			`* @arg LED2`
204			`* @arg LED3`
205			`* @arg LED4`
206			`* @retval None`
207			`*/`
208			`void STM_EVAL_LEDOn(Led_TypeDef Led)`
209			`{`
210			`GPIO_PORT[Led]->BSRRH = GPIO_PIN[Led];`
211			`}`
212
213			`/**`
214			`* @brief Turns selected LED Off.`
215			`* @param Led: Specifies the Led to be set off.`
216			`* This parameter can be one of following parameters:`
217			`* @arg LED1`
218			`* @arg LED2`
219			`* @arg LED3`
220			`* @arg LED4`
221			`* @retval None`
222			`*/`
223			`void STM_EVAL_LEDOff(Led_TypeDef Led)`
224			`{`
225			`GPIO_PORT[Led]->BSRRL = GPIO_PIN[Led];`
226			`}`
227
228			`/**`
229			`* @brief Toggles the selected LED.`
230			`* @param Led: Specifies the Led to be toggled.`
231			`* This parameter can be one of following parameters:`
232			`* @arg LED1`
233			`* @arg LED2`
234			`* @arg LED3`
235			`* @arg LED4`
236			`* @retval None`
237			`*/`
238			`void STM_EVAL_LEDToggle(Led_TypeDef Led)`
239			`{`
240			`GPIO_PORT[Led]->ODR ^= GPIO_PIN[Led];`
241			`}`
242
243			`/**`
244			`* @brief Configures Button GPIO and EXTI Line.`
245			`* @param Button: Specifies the Button to be configured.`
246			`* This parameter can be one of following parameters:`
247			`* @arg BUTTON_WAKEUP: Wakeup Push Button`
248			`* @arg BUTTON_TAMPER: Tamper Push Button`
249			`* @arg BUTTON_KEY: Key Push Button`
250			`* @arg BUTTON_RIGHT: Joystick Right Push Button`
251			`* @arg BUTTON_LEFT: Joystick Left Push Button`
252			`* @arg BUTTON_UP: Joystick Up Push Button`
253			`* @arg BUTTON_DOWN: Joystick Down Push Button`
254			`* @arg BUTTON_SEL: Joystick Sel Push Button`
255			`* @param Button_Mode: Specifies Button mode.`
256			`* This parameter can be one of following parameters:`
257			`* @arg BUTTON_MODE_GPIO: Button will be used as simple IO`
258			`* @arg BUTTON_MODE_EXTI: Button will be connected to EXTI line with interrupt`
259			`* generation capability`
260			`* @retval None`
261			`*/`
262			`void STM_EVAL_PBInit(Button_TypeDef Button, ButtonMode_TypeDef Button_Mode)`
263			`{`
264			`GPIO_InitTypeDef GPIO_InitStructure;`
265			`EXTI_InitTypeDef EXTI_InitStructure;`
266			`NVIC_InitTypeDef NVIC_InitStructure;`
267
268			`/* Enable the BUTTON Clock */`
269			`RCC_AHBPeriphClockCmd(BUTTON_CLK[Button], ENABLE);`
270			`RCC_APB2PeriphClockCmd(RCC_APB2Periph_SYSCFG, ENABLE);`
271
272			`/* Configure Button pin as input */`
273			`GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN;`
274			`GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;`
275			`GPIO_InitStructure.GPIO_Pin = BUTTON_PIN[Button];`
276			`GPIO_Init(BUTTON_PORT[Button], &GPIO_InitStructure);`
277
278
279			`if (Button_Mode == BUTTON_MODE_EXTI)`
280			`{`
281			`/* Connect Button EXTI Line to Button GPIO Pin */`
282			`SYSCFG_EXTILineConfig(BUTTON_PORT_SOURCE[Button], BUTTON_PIN_SOURCE[Button]);`
283
284			`/* Configure Button EXTI line */`
285			`EXTI_InitStructure.EXTI_Line = BUTTON_EXTI_LINE[Button];`
286			`EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;`
287
288			`if((Button != BUTTON_WAKEUP) && (Button != BUTTON_KEY) && (Button != BUTTON_TAMPER))`
289			`{`
290			`EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling;`
291			`}`
292			`else`
293			`{`
294			`EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Rising;`
295			`}`
296			`EXTI_InitStructure.EXTI_LineCmd = ENABLE;`
297			`EXTI_Init(&EXTI_InitStructure);`
298
299			`/* Enable and set Button EXTI Interrupt to the lowest priority */`
300			`NVIC_InitStructure.NVIC_IRQChannel = BUTTON_IRQn[Button];`
301			`NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0x0F;`
302			`NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0x0F;`
303			`NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;`
304
305			`NVIC_Init(&NVIC_InitStructure);`
306			`}`
307			`}`
308
309			`/**`
310			`* @brief Returns the selected Button state.`
311			`* @param Button: Specifies the Button to be checked.`
312			`* This parameter can be one of following parameters:`
313			`* @arg BUTTON_WAKEUP: Wakeup Push Button`
314			`* @arg BUTTON_TAMPER: Tamper Push Button`
315			`* @arg BUTTON_KEY: Key Push Button`
316			`* @arg BUTTON_RIGHT: Joystick Right Push Button`
317			`* @arg BUTTON_LEFT: Joystick Left Push Button`
318			`* @arg BUTTON_UP: Joystick Up Push Button`
319			`* @arg BUTTON_DOWN: Joystick Down Push Button`
320			`* @arg BUTTON_SEL: Joystick Sel Push Button`
321			`* @retval The Button GPIO pin value.`
322			`*/`
323			`uint32_t STM_EVAL_PBGetState(Button_TypeDef Button)`
324			`{`
325			`return GPIO_ReadInputDataBit(BUTTON_PORT[Button], BUTTON_PIN[Button]);`
326			`}`
327
328
329			`/**`
330			`* @brief Configures COM port.`
331			`* @param COM: Specifies the COM port to be configured.`
332			`* This parameter can be one of following parameters:`
333			`* @arg COM1`
334			`* @arg COM2`
335			`* @param USART_InitStruct: pointer to a USART_InitTypeDef structure that`
336			`* contains the configuration information for the specified USART peripheral.`
337			`* @retval None`
338			`*/`
339			`void STM_EVAL_COMInit(COM_TypeDef COM, USART_InitTypeDef* USART_InitStruct)`
340			`{`
341			`GPIO_InitTypeDef GPIO_InitStructure;`
342
343			`/* Enable GPIO clock */`
344			`RCC_AHBPeriphClockCmd(COM_TX_PORT_CLK[COM] \| COM_RX_PORT_CLK[COM], ENABLE);`
345
346			`/* Enable UART clock */`
347			`RCC_APB1PeriphClockCmd(COM_USART_CLK[COM], ENABLE);`
348
349			`/* Connect PXx to USARTx_Tx*/`
350			`GPIO_PinAFConfig(COM_TX_PORT[COM], COM_TX_PIN_SOURCE[COM], COM_TX_AF[COM]);`
351
352			`/* Connect PXx to USARTx_Rx*/`
353			`GPIO_PinAFConfig(COM_RX_PORT[COM], COM_RX_PIN_SOURCE[COM], COM_RX_AF[COM]);`
354
355			`/* Configure USART Tx as alternate function push-pull */`
356			`GPIO_InitStructure.GPIO_Pin = COM_TX_PIN[COM];`
357			`GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;`
358			`GPIO_InitStructure.GPIO_Speed = GPIO_Speed_40MHz;`
359			`GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;`
360			`GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP;`
361			`GPIO_Init(COM_TX_PORT[COM], &GPIO_InitStructure);`
362
363			`/* Configure USART Rx as input floating */`
364			`GPIO_InitStructure.GPIO_Pin = COM_RX_PIN[COM];`
365			`GPIO_Init(COM_RX_PORT[COM], &GPIO_InitStructure);`
366
367			`/* USART configuration */`
368			`USART_Init(COM_USART[COM], USART_InitStruct);`
369
370			`/* Enable USART */`
371			`USART_Cmd(COM_USART[COM], ENABLE);`
372			`}`
373
374			`/**`
375			`* @brief DeInitializes the SPI interface.`
376			`* @param None`
377			`* @retval None`
378			`*/`
379			`void SD_LowLevel_DeInit(void)`
380			`{`
381			`GPIO_InitTypeDef GPIO_InitStructure;`
382
383			`SPI_Cmd(SD_SPI, DISABLE); /!< SD_SPI disable /`
384			`SPI_DeInit(SD_SPI); /!< DeInitializes the SD_SPI /`
385
386			`/!< SD_SPI Periph clock disable /`
387			`RCC_APB1PeriphClockCmd(SD_SPI_CLK, DISABLE);`
388
389			`/!< Configure SD_SPI pins: SCK /`
390			`GPIO_InitStructure.GPIO_Pin = SD_SPI_SCK_PIN;`
391			`GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN;`
392			`GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;`
393			`GPIO_Init(SD_SPI_SCK_GPIO_PORT, &GPIO_InitStructure);`
394
395			`/!< Configure SD_SPI pins: MISO /`
396			`GPIO_InitStructure.GPIO_Pin = SD_SPI_MISO_PIN;`
397			`GPIO_Init(SD_SPI_MISO_GPIO_PORT, &GPIO_InitStructure);`
398
399			`/!< Configure SD_SPI pins: MOSI /`
400			`GPIO_InitStructure.GPIO_Pin = SD_SPI_MOSI_PIN;`
401			`GPIO_Init(SD_SPI_MOSI_GPIO_PORT, &GPIO_InitStructure);`
402
403			`/!< Configure SD_SPI_CS_PIN pin: SD Card CS pin /`
404			`GPIO_InitStructure.GPIO_Pin = SD_CS_PIN;`
405			`GPIO_Init(SD_CS_GPIO_PORT, &GPIO_InitStructure);`
406
407			`/!< Configure SD_SPI_DETECT_PIN pin: SD Card detect pin /`
408			`GPIO_InitStructure.GPIO_Pin = SD_DETECT_PIN;`
409			`GPIO_Init(SD_DETECT_GPIO_PORT, &GPIO_InitStructure);`
410			`}`
411
412			`/**`
413			`* @brief Initializes the SD Card and put it into StandBy State (Ready for`
414			`* data transfer).`
415			`* @param None`
416			`* @retval None`
417			`*/`
418			`void SD_LowLevel_Init(void)`
419			`{`
420			`GPIO_InitTypeDef GPIO_InitStructure;`
421			`SPI_InitTypeDef SPI_InitStructure;`
422
423			`/*!< SD_SPI_CS_GPIO, SD_SPI_MOSI_GPIO, SD_SPI_MISO_GPIO, SD_SPI_DETECT_GPIO`
424			`and SD_SPI_SCK_GPIO Periph clock enable */`
425			`RCC_AHBPeriphClockCmd(SD_CS_GPIO_CLK \| SD_SPI_MOSI_GPIO_CLK \| SD_SPI_MISO_GPIO_CLK \|`
426			`SD_SPI_SCK_GPIO_CLK \| SD_DETECT_GPIO_CLK, ENABLE);`
427
428			`/!< SD_SPI Periph clock enable /`
429			`RCC_APB1PeriphClockCmd(SD_SPI_CLK, ENABLE);`
430
431			`/!< Configure SD_SPI pins: SCK /`
432			`GPIO_InitStructure.GPIO_Pin = SD_SPI_SCK_PIN;`
433			`GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;`
434			`GPIO_InitStructure.GPIO_Speed = GPIO_Speed_40MHz;`
435			`GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;`
436			`GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP;`
437			`GPIO_Init(SD_SPI_SCK_GPIO_PORT, &GPIO_InitStructure);`
438
439			`/!< Configure SD_SPI pins: MISO /`
440			`GPIO_InitStructure.GPIO_Pin = SD_SPI_MISO_PIN;`
441			`GPIO_Init(SD_SPI_MISO_GPIO_PORT, &GPIO_InitStructure);`
442
443			`/!< Configure SD_SPI pins: MOSI /`
444			`GPIO_InitStructure.GPIO_Pin = SD_SPI_MOSI_PIN;`
445			`GPIO_Init(SD_SPI_MOSI_GPIO_PORT, &GPIO_InitStructure);`
446
447			`/!< Configure SD_SPI_CS_PIN pin: SD Card CS pin /`
448			`GPIO_InitStructure.GPIO_Pin = SD_CS_PIN;`
449			`GPIO_InitStructure.GPIO_Mode = GPIO_Mode_OUT;`
450			`GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;`
451			`GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP;`
452			`GPIO_InitStructure.GPIO_Speed = GPIO_Speed_40MHz;`
453			`GPIO_Init(SD_CS_GPIO_PORT, &GPIO_InitStructure);`
454
455			`/!< Configure SD_SPI_DETECT_PIN pin: SD Card detect pin /`
456			`GPIO_InitStructure.GPIO_Pin = SD_DETECT_PIN;`
457			`GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN;`
458			`GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP;`
459			`GPIO_Init(SD_DETECT_GPIO_PORT, &GPIO_InitStructure);`
460
461			`/* Connect PXx to SD_SPI_SCK */`
462			`GPIO_PinAFConfig(SD_SPI_SCK_GPIO_PORT, SD_SPI_SCK_SOURCE, SD_SPI_SCK_AF);`
463
464			`/* Connect PXx to SD_SPI_MISO */`
465			`GPIO_PinAFConfig(SD_SPI_MISO_GPIO_PORT, SD_SPI_MISO_SOURCE, SD_SPI_MISO_AF);`
466
467			`/* Connect PXx to SD_SPI_MOSI */`
468			`GPIO_PinAFConfig(SD_SPI_MOSI_GPIO_PORT, SD_SPI_MOSI_SOURCE, SD_SPI_MOSI_AF);`
469
470			`/!< SD_SPI Config /`
471			`SPI_InitStructure.SPI_Direction = SPI_Direction_2Lines_FullDuplex;`
472			`SPI_InitStructure.SPI_Mode = SPI_Mode_Master;`
473			`SPI_InitStructure.SPI_DataSize = SPI_DataSize_8b;`
474			`SPI_InitStructure.SPI_CPOL = SPI_CPOL_High;`
475			`SPI_InitStructure.SPI_CPHA = SPI_CPHA_2Edge;`
476			`SPI_InitStructure.SPI_NSS = SPI_NSS_Soft;`
477			`SPI_InitStructure.SPI_BaudRatePrescaler = SPI_BaudRatePrescaler_2;`
478
479			`SPI_InitStructure.SPI_FirstBit = SPI_FirstBit_MSB;`
480			`SPI_InitStructure.SPI_CRCPolynomial = 7;`
481			`SPI_Init(SD_SPI, &SPI_InitStructure);`
482
483			`SPI_Cmd(SD_SPI, ENABLE); /!< SD_SPI enable /`
484			`}`
485
486			`/**`
487			`* @brief DeInitializes the LM75_I2C.`
488			`* @param None`
489			`* @retval None`
490			`*/`
491			`void LM75_LowLevel_DeInit(void)`
492			`{`
493			`GPIO_InitTypeDef GPIO_InitStructure;`
494
495			`/!< Disable LM75_I2C /`
496			`I2C_Cmd(LM75_I2C, DISABLE);`
497
498			`/!< DeInitializes the LM75_I2C /`
499			`I2C_DeInit(LM75_I2C);`
500
501			`/!< LM75_I2C Periph clock disable /`
502			`RCC_APB1PeriphClockCmd(LM75_I2C_CLK, DISABLE);`
503
504			`/!< Configure LM75_I2C pins: SCL /`
505			`GPIO_InitStructure.GPIO_Pin = LM75_I2C_SCL_PIN;`
506			`GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN;`
507			`GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;`
508			`GPIO_Init(LM75_I2C_SCL_GPIO_PORT, &GPIO_InitStructure);`
509
510			`/!< Configure LM75_I2C pins: SDA /`
511			`GPIO_InitStructure.GPIO_Pin = LM75_I2C_SDA_PIN;`
512			`GPIO_Init(LM75_I2C_SDA_GPIO_PORT, &GPIO_InitStructure);`
513
514			`/!< Configure LM75_I2C pin: SMBUS ALERT /`
515			`GPIO_InitStructure.GPIO_Pin = LM75_I2C_SMBUSALERT_PIN;`
516			`GPIO_Init(LM75_I2C_SMBUSALERT_GPIO_PORT, &GPIO_InitStructure);`
517			`}`
518
519			`/**`
520			`* @brief Initializes the LM75_I2C.`
521			`* @param None`
522			`* @retval None`
523			`*/`
524			`void LM75_LowLevel_Init(void)`
525			`{`
526			`GPIO_InitTypeDef GPIO_InitStructure;`
527
528			`/!< LM75_I2C Periph clock enable /`
529			`RCC_APB1PeriphClockCmd(LM75_I2C_CLK, ENABLE);`
530
531			`/*!< LM75_I2C_SCL_GPIO_CLK, LM75_I2C_SDA_GPIO_CLK`
532			`and LM75_I2C_SMBUSALERT_GPIO_CLK Periph clock enable */`
533			`RCC_AHBPeriphClockCmd(LM75_I2C_SCL_GPIO_CLK \| LM75_I2C_SDA_GPIO_CLK \|`
534			`LM75_I2C_SMBUSALERT_GPIO_CLK, ENABLE);`
535
536			`/!< Configure LM75_I2C pins: SCL /`
537			`GPIO_InitStructure.GPIO_Pin = LM75_I2C_SCL_PIN;`
538			`GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;`
539			`GPIO_InitStructure.GPIO_Speed = GPIO_Speed_40MHz;`
540			`GPIO_InitStructure.GPIO_OType = GPIO_OType_OD;`
541			`GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;`
542			`GPIO_Init(LM75_I2C_SCL_GPIO_PORT, &GPIO_InitStructure);`
543
544			`/!< Configure LM75_I2C pins: SDA /`
545			`GPIO_InitStructure.GPIO_Pin = LM75_I2C_SDA_PIN;`
546			`GPIO_Init(LM75_I2C_SDA_GPIO_PORT, &GPIO_InitStructure);`
547
548			`/!< Configure LM75_I2C pin: SMBUS ALERT /`
549			`GPIO_InitStructure.GPIO_Pin = LM75_I2C_SMBUSALERT_PIN;`
550			`GPIO_Init(LM75_I2C_SMBUSALERT_GPIO_PORT, &GPIO_InitStructure);`
551
552
553			`/* Connect PXx to I2C_SCL */`
554			`GPIO_PinAFConfig(LM75_I2C_SCL_GPIO_PORT, LM75_I2C_SCL_SOURCE, LM75_I2C_SCL_AF);`
555
556			`/* Connect PXx to I2C_SDA */`
557			`GPIO_PinAFConfig(LM75_I2C_SDA_GPIO_PORT, LM75_I2C_SDA_SOURCE, LM75_I2C_SDA_AF);`
558
559			`/* Connect PXx to I2C_SMBUSALER */`
560			`GPIO_PinAFConfig(LM75_I2C_SMBUSALERT_GPIO_PORT, LM75_I2C_SMBUSALERT_SOURCE, LM75_I2C_SMBUSALERT_AF);`
561			`}`
562
563			`/**`
564			`* @}`
565			`*/`
566
567
568			`/**`
569			`* @}`
570			`*/`
571
572			`/**`
573			`* @}`
574			`*/`
575
576			`/**`
577			`* @}`
578			`*/`
579
580			`/**`
581			`* @}`
582			`*/`
583
584			`/***************** (C) COPYRIGHT 2010 STMicroelectronics *END OF FILE**/`