/**
******************************************************************************
* @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.
*
*
© COPYRIGHT 2011 STMicroelectronics
******************************************************************************
*/
/* 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****/