| /** | |
| ****************************************************************************** | |
| * @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>© 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****/ |