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Diffstat (limited to 'tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Utilities/STM32_EVAL/STM32L152_EVAL/stm32l152_eval.c')
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diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Utilities/STM32_EVAL/STM32L152_EVAL/stm32l152_eval.c b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Utilities/STM32_EVAL/STM32L152_EVAL/stm32l152_eval.c new file mode 100644 index 0000000..0209e69 --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Utilities/STM32_EVAL/STM32L152_EVAL/stm32l152_eval.c @@ -0,0 +1,750 @@ +/** + ****************************************************************************** + * @file stm32l152_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 SPI) and + * temperature sensor (LM75) available on STM32L152-EVAL + * evaluation board RevB 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>© COPYRIGHT 2011 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] = {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] = {KEY_BUTTON_PIN, RIGHT_BUTTON_PIN, + LEFT_BUTTON_PIN, UP_BUTTON_PIN, + DOWN_BUTTON_PIN, SEL_BUTTON_PIN}; + +const uint32_t BUTTON_CLK[BUTTONn] = {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] = {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] = {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] = {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] = {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}; + +DMA_InitTypeDef sEEDMA_InitStructure; + +/** + * @} + */ + + +/** @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_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; + + /* There is no Wakeup and Tamper buttons on STM32L152-EVAL, the Button value should + be greater than 1. */ + if(Button > 1) + { + Button = (Button_TypeDef) (Button - 2); + + /* 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_KEY) + { + 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_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 - When Button > 1, the Button GPIO pin value is returned. + * - When Button = 0 or 1, error code (0xFF) is returned. + */ +uint32_t STM_EVAL_PBGetState(Button_TypeDef Button) +{ + /* There is no Wakeup and Tamper pins on STM32L152-EVAL, the Button value should + be greater than 1. */ + if(Button > 1) + { + Button = (Button_TypeDef) (Button - 2); + return GPIO_ReadInputDataBit(BUTTON_PORT[Button], BUTTON_PIN[Button]); + } + else + { + return 0xFF; /* Error Code */ + } +} + +/** + * @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 alternate function push-pull */ + 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); +} + +/** + * @brief DeInitializes peripherals used by the I2C EEPROM driver. + * @param None + * @retval None + */ +void sEE_LowLevel_DeInit(void) +{ + GPIO_InitTypeDef GPIO_InitStructure; + NVIC_InitTypeDef NVIC_InitStructure; + + /* sEE_I2C Peripheral Disable */ + I2C_Cmd(sEE_I2C, DISABLE); + + /* sEE_I2C DeInit */ + I2C_DeInit(sEE_I2C); + + /*!< sEE_I2C Periph clock disable */ + RCC_APB1PeriphClockCmd(sEE_I2C_CLK, DISABLE); + + /*!< GPIO configuration */ + /*!< Configure sEE_I2C pins: SCL */ + GPIO_InitStructure.GPIO_Pin = sEE_I2C_SCL_PIN; + GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN; + GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL; + GPIO_Init(sEE_I2C_SCL_GPIO_PORT, &GPIO_InitStructure); + + /*!< Configure sEE_I2C pins: SDA */ + GPIO_InitStructure.GPIO_Pin = sEE_I2C_SDA_PIN; + GPIO_Init(sEE_I2C_SDA_GPIO_PORT, &GPIO_InitStructure); + + /* Configure and enable I2C DMA TX Channel interrupt */ + NVIC_InitStructure.NVIC_IRQChannel = sEE_I2C_DMA_TX_IRQn; + NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = sEE_I2C_DMA_PREPRIO; + NVIC_InitStructure.NVIC_IRQChannelSubPriority = sEE_I2C_DMA_SUBPRIO; + NVIC_InitStructure.NVIC_IRQChannelCmd = DISABLE; + NVIC_Init(&NVIC_InitStructure); + + /* Configure and enable I2C DMA RX Channel interrupt */ + NVIC_InitStructure.NVIC_IRQChannel = sEE_I2C_DMA_RX_IRQn; + NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = sEE_I2C_DMA_PREPRIO; + NVIC_InitStructure.NVIC_IRQChannelSubPriority = sEE_I2C_DMA_SUBPRIO; + NVIC_Init(&NVIC_InitStructure); + + /* Disable and Deinitialize the DMA channels */ + DMA_Cmd(sEE_I2C_DMA_CHANNEL_TX, DISABLE); + DMA_Cmd(sEE_I2C_DMA_CHANNEL_RX, DISABLE); + DMA_DeInit(sEE_I2C_DMA_CHANNEL_TX); + DMA_DeInit(sEE_I2C_DMA_CHANNEL_RX); +} + +/** + * @brief Initializes peripherals used by the I2C EEPROM driver. + * @param None + * @retval None + */ +void sEE_LowLevel_Init(void) +{ + GPIO_InitTypeDef GPIO_InitStructure; + NVIC_InitTypeDef NVIC_InitStructure; + + /*!< sEE_I2C Periph clock enable */ + RCC_APB1PeriphClockCmd(sEE_I2C_CLK, ENABLE); + + /*!< sEE_I2C_SCL_GPIO_CLK and sEE_I2C_SDA_GPIO_CLK Periph clock enable */ + RCC_AHBPeriphClockCmd(sEE_I2C_SCL_GPIO_CLK | sEE_I2C_SDA_GPIO_CLK, ENABLE); + + RCC_APB2PeriphClockCmd(RCC_APB2Periph_SYSCFG, ENABLE); + + /* Reset sEE_I2C peripheral */ + RCC_APB1PeriphResetCmd(sEE_I2C_CLK, ENABLE); + + /* Release reset signal of sEE_I2C IP */ + RCC_APB1PeriphResetCmd(sEE_I2C_CLK, DISABLE); + + /*!< GPIO configuration */ + /*!< Configure sEE_I2C pins: SCL */ + GPIO_InitStructure.GPIO_Pin = sEE_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(sEE_I2C_SCL_GPIO_PORT, &GPIO_InitStructure); + + /*!< Configure sEE_I2C pins: SDA */ + GPIO_InitStructure.GPIO_Pin = sEE_I2C_SDA_PIN; + GPIO_Init(sEE_I2C_SDA_GPIO_PORT, &GPIO_InitStructure); + + /* Connect PXx to I2C_SCL*/ + GPIO_PinAFConfig(sEE_I2C_SCL_GPIO_PORT, sEE_I2C_SCL_SOURCE, sEE_I2C_SCL_AF); + + /* Connect PXx to I2C_SDA*/ + GPIO_PinAFConfig(sEE_I2C_SDA_GPIO_PORT, sEE_I2C_SDA_SOURCE, sEE_I2C_SDA_AF); + + /* Configure and enable I2C DMA TX Channel interrupt */ + NVIC_InitStructure.NVIC_IRQChannel = sEE_I2C_DMA_TX_IRQn; + NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = sEE_I2C_DMA_PREPRIO; + NVIC_InitStructure.NVIC_IRQChannelSubPriority = sEE_I2C_DMA_SUBPRIO; + NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; + NVIC_Init(&NVIC_InitStructure); + + /* Configure and enable I2C DMA RX Channel interrupt */ + NVIC_InitStructure.NVIC_IRQChannel = sEE_I2C_DMA_RX_IRQn; + NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = sEE_I2C_DMA_PREPRIO; + NVIC_InitStructure.NVIC_IRQChannelSubPriority = sEE_I2C_DMA_SUBPRIO; + NVIC_Init(&NVIC_InitStructure); + + /*!< I2C DMA TX and RX channels configuration */ + /* Enable the DMA clock */ + RCC_AHBPeriphClockCmd(sEE_I2C_DMA_CLK, ENABLE); + + /* I2C TX DMA Channel configuration */ + DMA_DeInit(sEE_I2C_DMA_CHANNEL_TX); + sEEDMA_InitStructure.DMA_PeripheralBaseAddr = (uint32_t)sEE_I2C_DR_Address; + sEEDMA_InitStructure.DMA_MemoryBaseAddr = (uint32_t)0; /* This parameter will be configured durig communication */ + sEEDMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralDST; /* This parameter will be configured durig communication */ + sEEDMA_InitStructure.DMA_BufferSize = 0xFFFF; /* This parameter will be configured durig communication */ + sEEDMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable; + sEEDMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Enable; + sEEDMA_InitStructure.DMA_PeripheralDataSize = DMA_MemoryDataSize_Byte; + sEEDMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_Byte; + sEEDMA_InitStructure.DMA_Mode = DMA_Mode_Normal; + sEEDMA_InitStructure.DMA_Priority = DMA_Priority_VeryHigh; + sEEDMA_InitStructure.DMA_M2M = DMA_M2M_Disable; + DMA_Init(sEE_I2C_DMA_CHANNEL_TX, &sEEDMA_InitStructure); + + /* I2C RX DMA Channel configuration */ + DMA_DeInit(sEE_I2C_DMA_CHANNEL_RX); + DMA_Init(sEE_I2C_DMA_CHANNEL_RX, &sEEDMA_InitStructure); + + /* Enable the DMA Channels Interrupts */ + DMA_ITConfig(sEE_I2C_DMA_CHANNEL_TX, DMA_IT_TC, ENABLE); + DMA_ITConfig(sEE_I2C_DMA_CHANNEL_RX, DMA_IT_TC, ENABLE); +} + +/** + * @brief Initializes DMA channel used by the I2C EEPROM driver. + * @param None + * @retval None + */ +void sEE_LowLevel_DMAConfig(uint32_t pBuffer, uint32_t BufferSize, uint32_t Direction) +{ + /* Initialize the DMA with the new parameters */ + if (Direction == sEE_DIRECTION_TX) + { + /* Configure the DMA Tx Channel with the buffer address and the buffer size */ + sEEDMA_InitStructure.DMA_MemoryBaseAddr = (uint32_t)pBuffer; + sEEDMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralDST; + sEEDMA_InitStructure.DMA_BufferSize = (uint32_t)BufferSize; + DMA_Init(sEE_I2C_DMA_CHANNEL_TX, &sEEDMA_InitStructure); + } + else + { + /* Configure the DMA Rx Channel with the buffer address and the buffer size */ + sEEDMA_InitStructure.DMA_MemoryBaseAddr = (uint32_t)pBuffer; + sEEDMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralSRC; + sEEDMA_InitStructure.DMA_BufferSize = (uint32_t)BufferSize; + DMA_Init(sEE_I2C_DMA_CHANNEL_RX, &sEEDMA_InitStructure); + } +} + +/** + * @} + */ + + +/** + * @} + */ + +/** + * @} + */ + +/** + * @} + */ + +/** + * @} + */ + +/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ |