Senior Design: Sound Monitor
AudioRecord
Dependencies: STM32L4xx_HAL_Driver CMSIS_DSP_401
stm32l476g_discovery.c
- Committer:
- EricLew
- Date:
- 2015-11-23
- Revision:
- 0:d4e5ad7ad71c
File content as of revision 0:d4e5ad7ad71c:
/**
******************************************************************************
* @file stm32l476g_discovery.c
* @author MCD Application Team
* @version V1.0.1
* @date 16-September-2015
* @brief This file provides a set of firmware functions to manage Leds,
* push-button and joystick of STM32L476G-Discovery board (MB1184)
******************************************************************************
* @attention
*
* <h2><center>© COPYRIGHT(c) 2015 STMicroelectronics</center></h2>
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. Neither the name of STMicroelectronics nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "stm32l476g_discovery.h"
/** @addtogroup BSP
* @{
*/
/** @defgroup STM32L476G_DISCOVERY STM32L476G-DISCOVERY
* @{
*/
/** @defgroup STM32L476G_DISCOVERY_Common STM32L476G-DISCOVERY Common
* @{
*/
/** @defgroup STM32L476G_DISCOVERY_Private_TypesDefinitions Private Types Definitions
* @brief This file provides firmware functions to manage Leds, push-buttons,
* COM ports, SD card on SPI and temperature sensor (TS751) available on
* STM32L476G-DISCOVERY discoveryuation board from STMicroelectronics.
* @{
*/
/**
* @}
*/
/** @defgroup STM32L476G_DISCOVERY_Private_Defines Private Defines
* @{
*/
/**
* @brief STM32L476G DISCOVERY BSP Driver version number V1.0.1
*/
#define __STM32L476G_DISCOVERY_BSP_VERSION_MAIN (0x01) /*!< [31:24] main version */
#define __STM32L476G_DISCOVERY_BSP_VERSION_SUB1 (0x00) /*!< [23:16] sub1 version */
#define __STM32L476G_DISCOVERY_BSP_VERSION_SUB2 (0x01) /*!< [15:8] sub2 version */
#define __STM32L476G_DISCOVERY_BSP_VERSION_RC (0x00) /*!< [7:0] release candidate */
#define __STM32L476G_DISCOVERY_BSP_VERSION ((__STM32L476G_DISCOVERY_BSP_VERSION_MAIN << 24)\
|(__STM32L476G_DISCOVERY_BSP_VERSION_SUB1 << 16)\
|(__STM32L476G_DISCOVERY_BSP_VERSION_SUB2 << 8 )\
|(__STM32L476G_DISCOVERY_BSP_VERSION_RC))
/**
* @}
*/
/** @defgroup STM32L476G_DISCOVERY_Private_Macros Private Macros
* @{
*/
/**
* @}
*/
/** @defgroup STM32L476G_DISCOVERY_Exported_Variables Exported Variables
* @{
*/
/**
* @brief LED variables
*/
#if defined (USE_STM32L476G_DISCO_REVC) || defined (USE_STM32L476G_DISCO_REVB)
GPIO_TypeDef* LED_PORT[LEDn] = {LED4_GPIO_PORT,
LED5_GPIO_PORT};
const uint16_t LED_PIN[LEDn] = {LED4_PIN,
LED5_PIN};
#elif defined (USE_STM32L476G_DISCO_REVA)
GPIO_TypeDef* LED_PORT[LEDn] = {LED3_GPIO_PORT,
LED4_GPIO_PORT};
const uint16_t LED_PIN[LEDn] = {LED3_PIN,
LED4_PIN};
#endif
/**
* @brief JOYSTICK variables
*/
GPIO_TypeDef* JOY_PORT[JOYn] = {SEL_JOY_GPIO_PORT,
DOWN_JOY_GPIO_PORT,
LEFT_JOY_GPIO_PORT,
RIGHT_JOY_GPIO_PORT,
UP_JOY_GPIO_PORT};
const uint16_t JOY_PIN[JOYn] = {SEL_JOY_PIN,
LEFT_JOY_PIN,
RIGHT_JOY_PIN,
DOWN_JOY_PIN,
UP_JOY_PIN};
const uint8_t JOY_IRQn[JOYn] = {SEL_JOY_EXTI_IRQn,
LEFT_JOY_EXTI_IRQn,
RIGHT_JOY_EXTI_IRQn,
DOWN_JOY_EXTI_IRQn,
UP_JOY_EXTI_IRQn};
/**
* @brief BUS variables
*/
#if defined(HAL_I2C_MODULE_ENABLED)
uint32_t I2c1Timeout = DISCOVERY_I2C2_TIMEOUT_MAX; /*<! Value of Timeout when I2C1 communication fails */
uint32_t I2c2Timeout = DISCOVERY_I2C2_TIMEOUT_MAX; /*<! Value of Timeout when I2C2 communication fails */
static I2C_HandleTypeDef I2c1Handle;
static I2C_HandleTypeDef I2c2Handle;
#endif /* HAL_I2C_MODULE_ENABLED */
#if defined(HAL_SPI_MODULE_ENABLED)
/* LL definition */
#define __SPI_DIRECTION_2LINES(__HANDLE__) do{\
CLEAR_BIT((__HANDLE__)->Instance->CR1, SPI_CR1_RXONLY | SPI_CR1_BIDIMODE | SPI_CR1_BIDIOE);\
}while(0);
#define __SPI_DIRECTION_2LINES_RXONLY(__HANDLE__) do{\
CLEAR_BIT((__HANDLE__)->Instance->CR1, SPI_CR1_RXONLY | SPI_CR1_BIDIMODE | SPI_CR1_BIDIOE);\
SET_BIT((__HANDLE__)->Instance->CR1, SPI_CR1_RXONLY);\
}while(0);
#define __SPI_DIRECTION_1LINE_TX(__HANDLE__) do{\
CLEAR_BIT((__HANDLE__)->Instance->CR1, SPI_CR1_RXONLY | SPI_CR1_BIDIMODE | SPI_CR1_BIDIOE);\
SET_BIT((__HANDLE__)->Instance->CR1, SPI_CR1_BIDIMODE | SPI_CR1_BIDIOE);\
}while(0);
#define __SPI_DIRECTION_1LINE_RX(__HANDLE__) do {\
CLEAR_BIT((__HANDLE__)->Instance->CR1, SPI_CR1_RXONLY | SPI_CR1_BIDIMODE | SPI_CR1_BIDIOE);\
SET_BIT((__HANDLE__)->Instance->CR1, SPI_CR1_BIDIMODE);\
} while(0);
uint32_t SpixTimeout = SPIx_TIMEOUT_MAX; /*<! Value of Timeout when SPI communication fails */
static SPI_HandleTypeDef SpiHandle;
#endif /* HAL_SPI_MODULE_ENABLED */
/**
* @}
*/
/** @defgroup STM32L476G_DISCOVERY_Private_FunctionPrototypes Private Functions
* @{
*/
/**************************** Bus functions ************************************/
/* I2C2 bus function */
#if defined(HAL_I2C_MODULE_ENABLED)
static void I2C2_Init(void);
static void I2C2_MspInit(I2C_HandleTypeDef *hi2c);
static void I2C2_DeInit(void);
static void I2C2_MspDeInit(I2C_HandleTypeDef *hi2c);
static void I2C2_WriteData(uint16_t Addr, uint16_t Reg, uint16_t RegSize, uint8_t Value);
static HAL_StatusTypeDef I2C2_WriteBuffer(uint16_t Addr, uint16_t Reg, uint16_t RegSize, uint8_t *pBuffer, uint16_t Length);
static uint8_t I2C2_ReadData(uint16_t Addr, uint16_t Reg, uint16_t RegSize);
static HAL_StatusTypeDef I2C2_ReadBuffer(uint16_t Addr, uint16_t Reg, uint16_t RegSize, uint8_t *pBuffer, uint16_t Length);
static void I2C2_Error (void);
static void I2C1_Init(void);
static void I2C1_MspInit(I2C_HandleTypeDef *hi2c);
static void I2C1_DeInit(void);
static void I2C1_MspDeInit(I2C_HandleTypeDef *hi2c);
static HAL_StatusTypeDef I2C1_WriteBuffer(uint16_t Addr, uint16_t Reg, uint16_t RegSize, uint8_t *pBuffer, uint16_t Length);
static HAL_StatusTypeDef I2C1_ReadBuffer(uint16_t Addr, uint16_t Reg, uint16_t RegSize, uint8_t *pBuffer, uint16_t Length);
static void I2C1_Error (void);
#endif/* HAL_I2C_MODULE_ENABLED */
/* SPIx bus function */
#if defined(HAL_SPI_MODULE_ENABLED)
static void SPIx_Init(void);
static void SPIx_MspInit(SPI_HandleTypeDef *hspi);
static void SPIx_DeInit(void);
static void SPIx_MspDeInit(void);
static uint8_t SPIx_WriteRead(uint8_t Byte);
static void SPIx_Write(uint8_t byte);
static uint8_t SPIx_Read(void);
#endif
/**************************** Link functions ***********************************/
#if defined(HAL_I2C_MODULE_ENABLED)
/* Link functions for EEPROM peripheral over I2C */
void EEPROM_I2C_IO_Init(void);
HAL_StatusTypeDef EEPROM_I2C_IO_WriteData(uint16_t DevAddress, uint16_t MemAddress, uint8_t* pBuffer, uint32_t BufferSize);
HAL_StatusTypeDef EEPROM_I2C_IO_ReadData(uint16_t DevAddress, uint16_t MemAddress, uint8_t* pBuffer, uint32_t BufferSize);
HAL_StatusTypeDef EEPROM_I2C_IO_IsDeviceReady(uint16_t DevAddress, uint32_t Trials);
/* Link functions for Audio Codec peripheral */
void AUDIO_IO_Init(void);
void AUDIO_IO_DeInit(void);
void AUDIO_IO_Write(uint8_t Addr, uint8_t Reg, uint8_t Value);
uint8_t AUDIO_IO_Read(uint8_t Addr, uint8_t Reg);
void AUDIO_IO_Delay(uint32_t delay);
#endif/* HAL_I2C_MODULE_ENABLED */
#if defined(HAL_SPI_MODULE_ENABLED)
/* Link function for COMPASS / ACCELERO peripheral */
void ACCELERO_IO_Init(void);
void ACCELERO_IO_DeInit(void);
void ACCELERO_IO_ITConfig(void);
void ACCELERO_IO_Write(uint8_t RegisterAddr, uint8_t Value);
uint8_t ACCELERO_IO_Read(uint8_t RegisterAddr);
void MAGNETO_IO_Init(void);
void MAGNETO_IO_DeInit(void);
void MAGNETO_IO_ITConfig(void);
void MAGNETO_IO_Write(uint8_t RegisterAddr, uint8_t Value);
uint8_t MAGNETO_IO_Read(uint8_t RegisterAddr);
/* Link functions for GYRO peripheral */
void GYRO_IO_Init(void);
void GYRO_IO_DeInit(void);
void GYRO_IO_Write(uint8_t* pBuffer, uint8_t WriteAddr, uint16_t NumByteToWrite);
void GYRO_IO_Read(uint8_t* pBuffer, uint8_t ReadAddr, uint16_t NumByteToRead);
#endif
#if defined(HAL_I2C_MODULE_ENABLED)
/* Link functions IOExpander */
void IOE_Init(void);
void IOE_ITConfig(void);
void IOE_Delay(uint32_t Delay);
void IOE_Write(uint8_t Addr, uint8_t Reg, uint8_t Value);
uint8_t IOE_Read(uint8_t Addr, uint8_t Reg);
uint16_t IOE_ReadMultiple(uint8_t Addr, uint8_t Reg, uint8_t *Buffer, uint16_t Length);
/* Link functions for IDD measurment */
void MFX_IO_Init(void);
void MFX_IO_DeInit(void);
void MFX_IO_ITConfig (void);
void MFX_IO_EnableWakeupPin(void);
void MFX_IO_Wakeup(void);
void MFX_IO_Delay(uint32_t delay);
void MFX_IO_Write(uint16_t addr, uint8_t reg, uint8_t value);
uint8_t MFX_IO_Read(uint16_t addr, uint8_t reg);
void MFX_IO_WriteMultiple(uint16_t Addr, uint8_t Reg, uint8_t *Buffer, uint16_t Length);
uint16_t MFX_IO_ReadMultiple(uint16_t addr, uint8_t reg, uint8_t *buffer, uint16_t length);
#endif/* HAL_I2C_MODULE_ENABLED */
/**
* @}
*/
/** @defgroup STM32L476G_DISCOVERY_Exported_Functions Exported Functions
* @{
*/
/**
* @brief This method returns the STM32L476 DISCOVERY BSP Driver revision
* @retval version : 0xXYZR (8bits for each decimal, R for RC)
*/
uint32_t BSP_GetVersion(void)
{
return __STM32L476G_DISCOVERY_BSP_VERSION;
}
/**
* @brief This method returns the STM32L476 DISCOVERY supply mode
* @retval Code of current supply mode
* This code can be one of following:
* @arg SUPPLY_MODE_EXTERNAL
* @arg SUPPLY_MODE_BATTERY
*/
SupplyMode_TypeDef BSP_SupplyModeDetection(void)
{
SupplyMode_TypeDef supplymode = SUPPLY_MODE_ERROR;
GPIO_InitTypeDef GPIO_InitStruct;
BATTERY_DETECTION_GPIO_CLK_ENABLE();
/* COMP GPIO pin configuration */
GPIO_InitStruct.Pin = BATTERY_DETECTION_PIN;
GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
HAL_GPIO_Init(BATTERY_DETECTION_GPIO_PORT, &GPIO_InitStruct);
HAL_Delay(400);
if(HAL_GPIO_ReadPin(BATTERY_DETECTION_GPIO_PORT, GPIO_InitStruct.Pin) != GPIO_PIN_RESET)
{
supplymode = SUPPLY_MODE_EXTERNAL;
}
else
{
supplymode = SUPPLY_MODE_BATTERY;
}
HAL_GPIO_DeInit(BATTERY_DETECTION_GPIO_PORT, GPIO_InitStruct.Pin);
return supplymode;
}
#if defined (USE_STM32L476G_DISCO_REVC) || defined (USE_STM32L476G_DISCO_REVB)
/**
* @brief Configures LED GPIOs.
* @param Led: Specifies the Led to be configured.
* This parameter can be one of following parameters:
* @arg LED4
* @arg LED5
* @retval None
*/
#elif defined (USE_STM32L476G_DISCO_REVA)
/**
* @brief Configures LED GPIOs.
* @param Led: Specifies the Led to be configured.
* This parameter can be one of following parameters:
* @arg LED3
* @arg LED4
* @retval None
*/
#endif
void BSP_LED_Init(Led_TypeDef Led)
{
GPIO_InitTypeDef GPIO_InitStructure;
/* Enable the GPIO_LED clock */
LEDx_GPIO_CLK_ENABLE(Led);
/* Configure the GPIO_LED pin */
GPIO_InitStructure.Pin = LED_PIN[Led];
GPIO_InitStructure.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStructure.Pull = GPIO_NOPULL;
GPIO_InitStructure.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
HAL_GPIO_Init(LED_PORT[Led], &GPIO_InitStructure);
HAL_GPIO_WritePin(LED_PORT[Led], GPIO_InitStructure.Pin, GPIO_PIN_RESET);
}
#if defined (USE_STM32L476G_DISCO_REVC) || defined (USE_STM32L476G_DISCO_REVB)
/**
* @brief Unconfigures LED GPIOs.
* @param Led: Specifies the Led to be unconfigured.
* This parameter can be one of following parameters:
* @arg LED4
* @arg LED5
* @retval None
*/
#elif defined (USE_STM32L476G_DISCO_REVA)
/**
* @brief Unconfigures LED GPIOs.
* @param Led: Specifies the Led to be unconfigured.
* This parameter can be one of following parameters:
* @arg LED3
* @arg LED4
* @retval None
*/
#endif
void BSP_LED_DeInit(Led_TypeDef Led)
{
/* Enable the GPIO_LED clock */
LEDx_GPIO_CLK_ENABLE(Led);
HAL_GPIO_DeInit(LED_PORT[Led], LED_PIN[Led]);
}
#if defined (USE_STM32L476G_DISCO_REVC) || defined (USE_STM32L476G_DISCO_REVB)
/**
* @brief Turns selected LED On.
* @param Led: Specifies the Led to be set on.
* This parameter can be one of following parameters:
* @arg LED4
* @arg LED5
* @retval None
*/
#elif defined (USE_STM32L476G_DISCO_REVA)
/**
* @brief Turns selected LED On.
* @param Led: Specifies the Led to be set on.
* This parameter can be one of following parameters:
* @arg LED3
* @arg LED4
* @retval None
*/
#endif
void BSP_LED_On(Led_TypeDef Led)
{
HAL_GPIO_WritePin(LED_PORT[Led], LED_PIN[Led], GPIO_PIN_SET);
}
#if defined (USE_STM32L476G_DISCO_REVC) || defined (USE_STM32L476G_DISCO_REVB)
/**
* @brief Turns selected LED Off.
* @param Led: Specifies the Led to be set off.
* This parameter can be one of following parameters:
* @arg LED4
* @arg LED5
* @retval None
*/
#elif defined (USE_STM32L476G_DISCO_REVA)
/**
* @brief Turns selected LED Off.
* @param Led: Specifies the Led to be set off.
* This parameter can be one of following parameters:
* @arg LED3
* @arg LED4
* @retval None
*/
#endif
void BSP_LED_Off(Led_TypeDef Led)
{
HAL_GPIO_WritePin(LED_PORT[Led], LED_PIN[Led], GPIO_PIN_RESET);
}
#if defined (USE_STM32L476G_DISCO_REVC) || defined (USE_STM32L476G_DISCO_REVB)
/**
* @brief Toggles the selected LED.
* @param Led: Specifies the Led to be toggled.
* This parameter can be one of following parameters:
* @arg LED4
* @arg LED5
* @retval None
*/
#elif defined (USE_STM32L476G_DISCO_REVA)
/**
* @brief Toggles the selected LED.
* @param Led: Specifies the Led to be toggled.
* This parameter can be one of following parameters:
* @arg LED3
* @arg LED4
* @retval None
*/
#endif
void BSP_LED_Toggle(Led_TypeDef Led)
{
HAL_GPIO_TogglePin(LED_PORT[Led], LED_PIN[Led]);
}
/**
* @brief Configures all buttons of the joystick in GPIO or EXTI modes.
* @param Joy_Mode: Joystick mode.
* This parameter can be one of the following values:
* @arg JOY_MODE_GPIO: Joystick pins will be used as simple IOs
* @arg JOY_MODE_EXTI: Joystick pins will be connected to EXTI line
* with interrupt generation capability
* @retval HAL_OK: if all initializations are OK. Other value if error.
*/
uint8_t BSP_JOY_Init(JOYMode_TypeDef Joy_Mode)
{
JOYState_TypeDef joykey;
GPIO_InitTypeDef GPIO_InitStruct;
/* Initialized the Joystick. */
for(joykey = JOY_SEL; joykey < (JOY_SEL + JOYn) ; joykey++)
{
/* Enable the JOY clock */
JOYx_GPIO_CLK_ENABLE(joykey);
GPIO_InitStruct.Pin = JOY_PIN[joykey];
GPIO_InitStruct.Pull = GPIO_PULLDOWN;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
if (Joy_Mode == JOY_MODE_GPIO)
{
/* Configure Joy pin as input */
GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
HAL_GPIO_Init(JOY_PORT[joykey], &GPIO_InitStruct);
}
else if (Joy_Mode == JOY_MODE_EXTI)
{
/* Configure Joy pin as input with External interrupt */
GPIO_InitStruct.Mode = GPIO_MODE_IT_FALLING;
HAL_GPIO_Init(JOY_PORT[joykey], &GPIO_InitStruct);
/* Enable and set Joy EXTI Interrupt to the lowest priority */
HAL_NVIC_SetPriority((IRQn_Type)(JOY_IRQn[joykey]), 0x0F, 0x00);
HAL_NVIC_EnableIRQ((IRQn_Type)(JOY_IRQn[joykey]));
}
}
return HAL_OK;
}
/**
* @brief Unonfigures all GPIOs used as buttons of the joystick.
* @retval None.
*/
void BSP_JOY_DeInit(void)
{
JOYState_TypeDef joykey;
/* Initialized the Joystick. */
for(joykey = JOY_SEL; joykey < (JOY_SEL + JOYn) ; joykey++)
{
/* Enable the JOY clock */
JOYx_GPIO_CLK_ENABLE(joykey);
HAL_GPIO_DeInit(JOY_PORT[joykey], JOY_PIN[joykey]);
}
}
/**
* @brief Returns the current joystick status.
* @retval Code of the joystick key pressed
* This code can be one of the following values:
* @arg JOY_NONE
* @arg JOY_SEL
* @arg JOY_DOWN
* @arg JOY_LEFT
* @arg JOY_RIGHT
* @arg JOY_UP
*/
JOYState_TypeDef BSP_JOY_GetState(void)
{
JOYState_TypeDef joykey;
for (joykey = JOY_SEL; joykey < (JOY_SEL + JOYn) ; joykey++)
{
if (HAL_GPIO_ReadPin(JOY_PORT[joykey], JOY_PIN[joykey]) == GPIO_PIN_SET)
{
/* Return Code Joystick key pressed */
return joykey;
}
}
/* No Joystick key pressed */
return JOY_NONE;
}
/**
* @}
*/
/** @defgroup STM32L476G_DISCOVERY_BusOperations_Functions Bus Operations Functions
* @{
*/
/*******************************************************************************
BUS OPERATIONS
*******************************************************************************/
#if defined(HAL_SPI_MODULE_ENABLED)
/******************************* SPI Routines**********************************/
/**
* @brief SPIx Bus initialization
* @retval None
*/
static void SPIx_Init(void)
{
if(HAL_SPI_GetState(&SpiHandle) == HAL_SPI_STATE_RESET)
{
/* SPI Config */
SpiHandle.Instance = DISCOVERY_SPIx;
/* SPI baudrate is set to 10 MHz (PCLK1/SPI_BaudRatePrescaler = 80/8 = 10 MHz)
to verify these constraints:
lsm303c SPI interface max baudrate is 10MHz for write/read
PCLK1 max frequency is set to 80 MHz
*/
SpiHandle.Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_8;
SpiHandle.Init.Direction = SPI_DIRECTION_2LINES;
SpiHandle.Init.CLKPhase = SPI_PHASE_1EDGE;
SpiHandle.Init.CLKPolarity = SPI_POLARITY_LOW;
SpiHandle.Init.CRCCalculation = SPI_CRCCALCULATION_DISABLE;
SpiHandle.Init.CRCPolynomial = 7;
SpiHandle.Init.DataSize = SPI_DATASIZE_8BIT;
SpiHandle.Init.FirstBit = SPI_FIRSTBIT_MSB;
SpiHandle.Init.NSS = SPI_NSS_SOFT;
SpiHandle.Init.TIMode = SPI_TIMODE_DISABLE;
SpiHandle.Init.Mode = SPI_MODE_MASTER;
SPIx_MspInit(&SpiHandle);
HAL_SPI_Init(&SpiHandle);
}
}
/**
* @brief SPI MSP Init
* @param hspi: SPI handle
* @retval None
*/
static void SPIx_MspInit(SPI_HandleTypeDef *hspi)
{
GPIO_InitTypeDef GPIO_InitStructure;
/* Enable SPIx clock */
DISCOVERY_SPIx_CLOCK_ENABLE();
/* enable SPIx gpio clock */
DISCOVERY_SPIx_GPIO_CLK_ENABLE();
/* configure SPIx SCK, MOSI and MISO */
GPIO_InitStructure.Pin = (DISCOVERY_SPIx_SCK_PIN | DISCOVERY_SPIx_MOSI_PIN | DISCOVERY_SPIx_MISO_PIN);
GPIO_InitStructure.Mode = GPIO_MODE_AF_PP;
GPIO_InitStructure.Pull = GPIO_NOPULL; // GPIO_PULLDOWN;
GPIO_InitStructure.Speed = GPIO_SPEED_FREQ_HIGH;
GPIO_InitStructure.Alternate = DISCOVERY_SPIx_AF;
HAL_GPIO_Init(DISCOVERY_SPIx_GPIO_PORT, &GPIO_InitStructure);
}
/**
* @brief SPIx Bus Deinitialization
* @retval None
*/
void SPIx_DeInit(void)
{
if(HAL_SPI_GetState(&SpiHandle) != HAL_SPI_STATE_RESET)
{
/* SPI Deinit */
HAL_SPI_DeInit(&SpiHandle);
SPIx_MspDeInit();
}
}
/**
* @brief SPI MSP DeInit
* @retval None
*/
static void SPIx_MspDeInit(void)
{
/* enable SPIx gpio clock */
DISCOVERY_SPIx_GPIO_CLK_ENABLE();
/* Unconfigure SPIx SCK, MOSI and MISO */
HAL_GPIO_DeInit(DISCOVERY_SPIx_GPIO_PORT, (DISCOVERY_SPIx_SCK_PIN | DISCOVERY_SPIx_MOSI_PIN | DISCOVERY_SPIx_MISO_PIN));
DISCOVERY_SPIx_GPIO_FORCE_RESET();
DISCOVERY_SPIx_GPIO_RELEASE_RESET();
/* Disable SPIx clock */
DISCOVERY_SPIx_CLOCK_DISABLE();
}
/**
* @brief Sends a Byte through the SPI interface and return the Byte received
* from the SPI bus.
* @param Byte : Byte send.
* @retval none.
*/
static uint8_t SPIx_WriteRead(uint8_t Byte)
{
uint8_t receivedbyte;
/* Enable the SPI */
__HAL_SPI_ENABLE(&SpiHandle);
/* check TXE flag */
while((SpiHandle.Instance->SR & SPI_FLAG_TXE) != SPI_FLAG_TXE);
/* Write the data */
*((__IO uint8_t*)&SpiHandle.Instance->DR) = Byte;
while((SpiHandle.Instance->SR & SPI_FLAG_RXNE) != SPI_FLAG_RXNE);
receivedbyte = *((__IO uint8_t*)&SpiHandle.Instance->DR);
/* Wait BSY flag */
while((SpiHandle.Instance->SR & SPI_FLAG_FTLVL) != SPI_FTLVL_EMPTY);
while((SpiHandle.Instance->SR & SPI_FLAG_BSY) == SPI_FLAG_BSY);
/* disable the SPI */
__HAL_SPI_DISABLE(&SpiHandle);
return receivedbyte;
}
/**
* @brief Sends a Byte through the SPI interface.
* @param Byte : Byte to send.
* @retval none.
*/
static void SPIx_Write(uint8_t Byte)
{
/* Enable the SPI */
__HAL_SPI_ENABLE(&SpiHandle);
/* check TXE flag */
while((SpiHandle.Instance->SR & SPI_FLAG_TXE) != SPI_FLAG_TXE);
/* Write the data */
*((__IO uint8_t*)&SpiHandle.Instance->DR) = Byte;
/* Wait BSY flag */
while((SpiHandle.Instance->SR & SPI_FLAG_BSY) == SPI_FLAG_BSY);
/* disable the SPI */
__HAL_SPI_DISABLE(&SpiHandle);
}
#if defined(__ICCARM__)
#pragma optimize=none
#endif
/**
* @brief Receives a Byte from the SPI bus.
* @retval The received byte value
*/
static uint8_t SPIx_Read(void)
{
uint8_t receivedbyte;
__HAL_SPI_ENABLE(&SpiHandle);
__DSB();
__DSB();
__DSB();
__DSB();
__DSB();
__DSB();
__DSB();
__DSB();
__HAL_SPI_DISABLE(&SpiHandle);
while((SpiHandle.Instance->SR & SPI_FLAG_RXNE) != SPI_FLAG_RXNE);
/* read the received data */
receivedbyte = *(__IO uint8_t *)&SpiHandle.Instance->DR;
/* Wait for the BSY flag reset */
while((SpiHandle.Instance->SR & SPI_FLAG_BSY) == SPI_FLAG_BSY);
return receivedbyte;
}
#endif /* HAL_SPI_MODULE_ENABLED */
#if defined(HAL_I2C_MODULE_ENABLED)
/******************************* I2C Routines**********************************/
/**
* @brief Discovery I2C1 Bus initialization
* @retval None
*/
static void I2C1_Init(void)
{
if(HAL_I2C_GetState(&I2c1Handle) == HAL_I2C_STATE_RESET)
{
I2c1Handle.Instance = DISCOVERY_I2C1;
I2c1Handle.Init.Timing = DISCOVERY_I2C1_TIMING;
I2c1Handle.Init.OwnAddress1 = 0;
I2c1Handle.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT;
I2c1Handle.Init.DualAddressMode = I2C_DUALADDRESS_DISABLE;
I2c1Handle.Init.OwnAddress2 = 0;
I2c1Handle.Init.GeneralCallMode = I2C_GENERALCALL_DISABLE;
I2c1Handle.Init.NoStretchMode = I2C_NOSTRETCH_DISABLE;
/* Init the I2C */
I2C1_MspInit(&I2c1Handle);
HAL_I2C_Init(&I2c1Handle);
}
}
/**
* @brief Discovery I2C1 MSP Initialization
* @param hi2c: I2C handle
* @retval None
*/
static void I2C1_MspInit(I2C_HandleTypeDef *hi2c)
{
GPIO_InitTypeDef GPIO_InitStructure;
RCC_PeriphCLKInitTypeDef RCC_PeriphCLKInitStruct;
/* IOSV bit MUST be set to access GPIO port G[2:15] */
__HAL_RCC_PWR_CLK_ENABLE();
HAL_PWREx_EnableVddIO2();
if (hi2c->Instance == DISCOVERY_I2C1)
{
/*##-1- Configure the Discovery I2C clock source. The clock is derived from the SYSCLK #*/
RCC_PeriphCLKInitStruct.PeriphClockSelection = RCC_PERIPHCLK_I2C1;
RCC_PeriphCLKInitStruct.I2c1ClockSelection = RCC_I2C1CLKSOURCE_SYSCLK;
HAL_RCCEx_PeriphCLKConfig(&RCC_PeriphCLKInitStruct);
/*##-2- Configure the GPIOs ################################################*/
/* Enable GPIO clock */
DISCOVERY_I2C1_SDA_GPIO_CLK_ENABLE();
DISCOVERY_I2C1_SCL_GPIO_CLK_ENABLE();
/* Configure I2C Rx/Tx as alternate function */
GPIO_InitStructure.Pin = DISCOVERY_I2C1_SCL_PIN | DISCOVERY_I2C1_SDA_PIN;
GPIO_InitStructure.Mode = GPIO_MODE_AF_OD;
GPIO_InitStructure.Pull = GPIO_PULLUP;
GPIO_InitStructure.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
GPIO_InitStructure.Alternate = DISCOVERY_I2C1_SCL_SDA_AF;
HAL_GPIO_Init(DISCOVERY_I2C1_SCL_GPIO_PORT, &GPIO_InitStructure);
/*##-3- Configure the Discovery I2C1 peripheral #######################################*/
/* Enable Discovery I2C1 clock */
DISCOVERY_I2C1_CLK_ENABLE();
/* Force and release the I2C Peripheral Clock Reset */
DISCOVERY_I2C1_FORCE_RESET();
DISCOVERY_I2C1_RELEASE_RESET();
/* Enable and set Discovery I2C1 Interrupt to the highest priority */
HAL_NVIC_SetPriority(DISCOVERY_I2C1_EV_IRQn, 0x00, 0);
HAL_NVIC_EnableIRQ(DISCOVERY_I2C1_EV_IRQn);
/* Enable and set Discovery I2C1 Interrupt to the highest priority */
HAL_NVIC_SetPriority(DISCOVERY_I2C1_ER_IRQn, 0x00, 0);
HAL_NVIC_EnableIRQ(DISCOVERY_I2C1_ER_IRQn);
}
}
/**
* @brief Discovery I2C1 Bus Deitialization
* @retval None
*/
static void I2C1_DeInit(void)
{
if(HAL_I2C_GetState(&I2c1Handle) != HAL_I2C_STATE_RESET)
{
/* Deinit the I2C */
HAL_I2C_DeInit(&I2c1Handle);
I2C1_MspDeInit(&I2c1Handle);
}
}
/**
* @brief Discovery I2C1 MSP Deinitialization
* @param hi2c: I2C handle
* @retval None
*/
static void I2C1_MspDeInit(I2C_HandleTypeDef *hi2c)
{
if(hi2c->Instance == DISCOVERY_I2C1)
{
/*##-1- Unconfigure the GPIOs ################################################*/
/* Enable GPIO clock */
DISCOVERY_I2C1_SDA_GPIO_CLK_ENABLE();
DISCOVERY_I2C1_SCL_GPIO_CLK_ENABLE();
/* Deinit Rx/Tx pins */
HAL_GPIO_DeInit(DISCOVERY_I2C1_SCL_GPIO_PORT, (DISCOVERY_I2C1_SCL_PIN | DISCOVERY_I2C1_SDA_PIN));
/*##-2- Unconfigure the Discovery I2C1 peripheral ############################*/
/* Force & Release the I2C Peripheral Clock Reset */
DISCOVERY_I2C1_FORCE_RESET();
DISCOVERY_I2C1_RELEASE_RESET();
/* Disable Discovery I2C1 clock */
DISCOVERY_I2C1_CLK_DISABLE();
/* Disable Discovery I2C1 interrupts */
HAL_NVIC_DisableIRQ(DISCOVERY_I2C1_EV_IRQn);
HAL_NVIC_DisableIRQ(DISCOVERY_I2C1_ER_IRQn);
__HAL_RCC_PWR_CLK_ENABLE();
HAL_PWREx_DisableVddIO2();
}
}
/**
* @brief Write a value in a register of the device through BUS.
* @param Addr: Device address on BUS Bus.
* @param Reg: The target register address to write
* @param RegSize: The target register size (can be 8BIT or 16BIT)
* @param pBuffer: The target register value to be written
* @param Length: buffer size to be written
* @retval None
*/
static HAL_StatusTypeDef I2C1_WriteBuffer(uint16_t Addr, uint16_t Reg, uint16_t RegSize, uint8_t *pBuffer, uint16_t Length)
{
HAL_StatusTypeDef status = HAL_OK;
status = HAL_I2C_Mem_Write(&I2c1Handle, Addr, (uint16_t)Reg, RegSize, pBuffer, Length, I2c1Timeout);
/* Check the communication status */
if(status != HAL_OK)
{
/* Re-Initiaize the BUS */
I2C1_Error();
}
return status;
}
/**
* @brief Reads multiple data on the BUS.
* @param Addr: I2C Address
* @param Reg: Reg Address
* @param RegSize : The target register size (can be 8BIT or 16BIT)
* @param pBuffer: pointer to read data buffer
* @param Length: length of the data
* @retval 0 if no problems to read multiple data
*/
static HAL_StatusTypeDef I2C1_ReadBuffer(uint16_t Addr, uint16_t Reg, uint16_t RegSize, uint8_t *pBuffer, uint16_t Length)
{
HAL_StatusTypeDef status = HAL_OK;
status = HAL_I2C_Mem_Read(&I2c1Handle, Addr, (uint16_t)Reg, RegSize, pBuffer, Length, I2c1Timeout);
/* Check the communication status */
if(status != HAL_OK)
{
/* Re-Initiaize the BUS */
I2C1_Error();
}
return status;
}
/**
* @brief Discovery I2C1 error treatment function
* @retval None
*/
static void I2C1_Error (void)
{
/* De-initialize the I2C communication BUS */
HAL_I2C_DeInit(&I2c1Handle);
/* Re- Initiaize the I2C communication BUS */
I2C1_Init();
}
/**
* @brief Discovery I2C2 Bus initialization
* @retval None
*/
static void I2C2_Init(void)
{
if(HAL_I2C_GetState(&I2c2Handle) == HAL_I2C_STATE_RESET)
{
I2c2Handle.Instance = DISCOVERY_I2C2;
I2c2Handle.Init.Timing = DISCOVERY_I2C2_TIMING;
I2c2Handle.Init.OwnAddress1 = 0;
I2c2Handle.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT;
I2c2Handle.Init.DualAddressMode = I2C_DUALADDRESS_DISABLE;
I2c2Handle.Init.OwnAddress2 = 0;
I2c2Handle.Init.GeneralCallMode = I2C_GENERALCALL_DISABLE;
I2c2Handle.Init.NoStretchMode = I2C_NOSTRETCH_DISABLE;
/* Init the I2C */
I2C2_MspInit(&I2c2Handle);
HAL_I2C_Init(&I2c2Handle);
}
}
/**
* @brief Discovery I2C2 MSP Initialization
* @param hi2c: I2C2 handle
* @retval None
*/
static void I2C2_MspInit(I2C_HandleTypeDef *hi2c)
{
GPIO_InitTypeDef GPIO_InitStructure;
RCC_PeriphCLKInitTypeDef RCC_PeriphCLKInitStruct;
if (hi2c->Instance == DISCOVERY_I2C2)
{
/*##-1- Configure the Discovery I2C2 clock source. The clock is derived from the SYSCLK #*/
RCC_PeriphCLKInitStruct.PeriphClockSelection = RCC_PERIPHCLK_I2C2;
RCC_PeriphCLKInitStruct.I2c2ClockSelection = RCC_I2C2CLKSOURCE_SYSCLK;
HAL_RCCEx_PeriphCLKConfig(&RCC_PeriphCLKInitStruct);
/*##-2- Configure the GPIOs ################################################*/
/* Enable GPIO clock */
DISCOVERY_I2C2_SDA_GPIO_CLK_ENABLE();
DISCOVERY_I2C2_SCL_GPIO_CLK_ENABLE();
/* Configure I2C Rx/Tx as alternate function */
GPIO_InitStructure.Pin = DISCOVERY_I2C2_SCL_PIN | DISCOVERY_I2C2_SDA_PIN;
GPIO_InitStructure.Mode = GPIO_MODE_AF_OD;
GPIO_InitStructure.Pull = GPIO_PULLUP;
GPIO_InitStructure.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
GPIO_InitStructure.Alternate = DISCOVERY_I2C2_SCL_SDA_AF;
HAL_GPIO_Init(DISCOVERY_I2C2_SCL_GPIO_PORT, &GPIO_InitStructure);
/*##-3- Configure the Discovery I2C2 peripheral #############################*/
/* Enable Discovery_I2C2 clock */
DISCOVERY_I2C2_CLK_ENABLE();
/* Force and release the I2C Peripheral Clock Reset */
DISCOVERY_I2C2_FORCE_RESET();
DISCOVERY_I2C2_RELEASE_RESET();
/* Enable and set Discovery I2C2 Interrupt to the highest priority */
HAL_NVIC_SetPriority(DISCOVERY_I2C2_EV_IRQn, 0x00, 0);
HAL_NVIC_EnableIRQ(DISCOVERY_I2C2_EV_IRQn);
/* Enable and set Discovery I2C2 Interrupt to the highest priority */
HAL_NVIC_SetPriority(DISCOVERY_I2C2_ER_IRQn, 0x00, 0);
HAL_NVIC_EnableIRQ(DISCOVERY_I2C2_ER_IRQn);
}
}
/**
* @brief Discovery I2C2 Bus Deinitialization
* @retval None
*/
static void I2C2_DeInit(void)
{
if(HAL_I2C_GetState(&I2c2Handle) != HAL_I2C_STATE_RESET)
{
/* DeInit the I2C */
HAL_I2C_DeInit(&I2c2Handle);
I2C2_MspDeInit(&I2c2Handle);
}
}
/**
* @brief Discovery I2C2 MSP DeInitialization
* @param hi2c: I2C2 handle
* @retval None
*/
static void I2C2_MspDeInit(I2C_HandleTypeDef *hi2c)
{
if (hi2c->Instance == DISCOVERY_I2C2)
{
/*##-1- Unconfigure the GPIOs ################################################*/
/* Enable GPIO clock */
DISCOVERY_I2C2_SDA_GPIO_CLK_ENABLE();
DISCOVERY_I2C2_SCL_GPIO_CLK_ENABLE();
/* Configure I2C Rx/Tx as alternate function */
HAL_GPIO_DeInit(DISCOVERY_I2C2_SCL_GPIO_PORT, (DISCOVERY_I2C2_SCL_PIN | DISCOVERY_I2C2_SDA_PIN));
/*##-2- Unconfigure the Discovery I2C2 peripheral ############################*/
/* Force and release I2C Peripheral */
DISCOVERY_I2C2_FORCE_RESET();
DISCOVERY_I2C2_RELEASE_RESET();
/* Disable Discovery I2C2 clock */
DISCOVERY_I2C2_CLK_DISABLE();
/* Disable Discovery I2C2 interrupts */
HAL_NVIC_DisableIRQ(DISCOVERY_I2C2_EV_IRQn);
HAL_NVIC_DisableIRQ(DISCOVERY_I2C2_ER_IRQn);
}
}
/**
* @brief Write a value in a register of the device through BUS.
* @param Addr: Device address on BUS Bus.
* @param Reg: The target register address to write
* @param RegSize: The target register size (can be 8BIT or 16BIT)
* @param Value: The target register value to be written
* @retval None
*/
static void I2C2_WriteData(uint16_t Addr, uint16_t Reg, uint16_t RegSize, uint8_t Value)
{
HAL_StatusTypeDef status = HAL_OK;
status = HAL_I2C_Mem_Write(&I2c2Handle, Addr, (uint16_t)Reg, RegSize, &Value, 1, I2c2Timeout);
/* Check the communication status */
if(status != HAL_OK)
{
/* Re-Initiaize the BUS */
I2C2_Error();
}
}
/**
* @brief Write a value in a register of the device through BUS.
* @param Addr: Device address on BUS Bus.
* @param Reg: The target register address to write
* @param RegSize: The target register size (can be 8BIT or 16BIT)
* @param pBuffer: The target register value to be written
* @param Length: buffer size to be written
* @retval None
*/
static HAL_StatusTypeDef I2C2_WriteBuffer(uint16_t Addr, uint16_t Reg, uint16_t RegSize, uint8_t *pBuffer, uint16_t Length)
{
HAL_StatusTypeDef status = HAL_OK;
status = HAL_I2C_Mem_Write(&I2c2Handle, Addr, (uint16_t)Reg, RegSize, pBuffer, Length, I2c2Timeout);
/* Check the communication status */
if(status != HAL_OK)
{
/* Re-Initiaize the BUS */
I2C2_Error();
}
return status;
}
/**
* @brief Read a register of the device through BUS
* @param Addr: Device address on BUS
* @param Reg: The target register address to read
* @param RegSize: The target register size (can be 8BIT or 16BIT)
* @retval read register value
*/
static uint8_t I2C2_ReadData(uint16_t Addr, uint16_t Reg, uint16_t RegSize)
{
HAL_StatusTypeDef status = HAL_OK;
uint8_t value = 0x0;
status = HAL_I2C_Mem_Read(&I2c2Handle, Addr, Reg, RegSize, &value, 1, I2c2Timeout);
/* Check the communication status */
if(status != HAL_OK)
{
/* Re-Initiaize the BUS */
I2C2_Error();
}
return value;
}
/**
* @brief Reads multiple data on the BUS.
* @param Addr: I2C Address
* @param Reg: Reg Address
* @param RegSize : The target register size (can be 8BIT or 16BIT)
* @param pBuffer: pointer to read data buffer
* @param Length: length of the data
* @retval 0 if no problems to read multiple data
*/
static HAL_StatusTypeDef I2C2_ReadBuffer(uint16_t Addr, uint16_t Reg, uint16_t RegSize, uint8_t *pBuffer, uint16_t Length)
{
HAL_StatusTypeDef status = HAL_OK;
status = HAL_I2C_Mem_Read(&I2c2Handle, Addr, (uint16_t)Reg, RegSize, pBuffer, Length, I2c2Timeout);
/* Check the communication status */
if(status != HAL_OK)
{
/* Re-Initiaize the BUS */
I2C2_Error();
}
return status;
}
/**
* @brief Discovery I2C2 error treatment function
* @retval None
*/
static void I2C2_Error (void)
{
/* De-initialize the I2C communication BUS */
HAL_I2C_DeInit(&I2c2Handle);
/* Re- Initiaize the I2C communication BUS */
I2C2_Init();
}
#endif /*HAL_I2C_MODULE_ENABLED*/
/*******************************************************************************
LINK OPERATIONS
*******************************************************************************/
#if defined(HAL_SPI_MODULE_ENABLED)
/*********************** LINK ACCELEROMETER ***********************************/
/**
* @brief Configures COMPASS/ACCELEROMETER io interface.
* @retval None
*/
void ACCELERO_IO_Init(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
/* Enable CS GPIO clock and Configure GPIO PIN for Gyroscope Chip select */
ACCELERO_CS_GPIO_CLK_ENABLE();
GPIO_InitStructure.Pin = ACCELERO_CS_PIN;
GPIO_InitStructure.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStructure.Pull = GPIO_NOPULL;
GPIO_InitStructure.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
HAL_GPIO_Init(ACCELERO_CS_GPIO_PORT, &GPIO_InitStructure);
/* Deselect : Chip Select high */
ACCELERO_CS_HIGH();
SPIx_Init();
}
/**
* @brief De-Configures COMPASS/ACCELEROMETER io interface.
* @retval None
*/
void ACCELERO_IO_DeInit(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
/* Enable CS GPIO clock and Configure GPIO PIN for Gyroscope Chip select */
ACCELERO_CS_GPIO_CLK_ENABLE();
GPIO_InitStructure.Pin = ACCELERO_CS_PIN;
GPIO_InitStructure.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStructure.Pull = GPIO_NOPULL;
GPIO_InitStructure.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
HAL_GPIO_Init(ACCELERO_CS_GPIO_PORT, &GPIO_InitStructure);
/* Deselect : Chip Select high */
ACCELERO_CS_HIGH();
/* Uninitialize SPI bus */
SPIx_DeInit();
}
/**
* @brief Configures COMPASS / ACCELERO click IT
* @retval None
*/
void ACCELERO_IO_ITConfig(void)
{
}
/**
* @brief Writes one byte to the COMPASS / ACCELEROMETER.
* @param RegisterAddr specifies the COMPASS / ACCELEROMETER register to be written.
* @param Value : Data to be written
* @retval None
*/
void ACCELERO_IO_Write(uint8_t RegisterAddr, uint8_t Value)
{
ACCELERO_CS_LOW();
__SPI_DIRECTION_1LINE_TX(&SpiHandle);
/* call SPI Read data bus function */
SPIx_Write(RegisterAddr);
SPIx_Write(Value);
ACCELERO_CS_HIGH();
}
/**
* @brief Reads a block of data from the COMPASS / ACCELEROMETER.
* @param RegisterAddr : specifies the COMPASS / ACCELEROMETER internal address register to read from
* @retval ACCELEROMETER register value
*/
uint8_t ACCELERO_IO_Read(uint8_t RegisterAddr)
{
RegisterAddr = RegisterAddr | ((uint8_t)0x80);
ACCELERO_CS_LOW();
__SPI_DIRECTION_1LINE_TX(&SpiHandle);
SPIx_Write(RegisterAddr);
__SPI_DIRECTION_1LINE_RX(&SpiHandle);
uint8_t val = SPIx_Read();
ACCELERO_CS_HIGH();
return val;
}
/********************************* LINK MAGNETO *******************************/
/**
* @brief Configures COMPASS/MAGNETO SPI interface.
* @retval None
*/
void MAGNETO_IO_Init(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
/* Enable CS GPIO clock and Configure GPIO PIN for Gyroscope Chip select */
MAGNETO_CS_GPIO_CLK_ENABLE();
GPIO_InitStructure.Pin = MAGNETO_CS_PIN;
GPIO_InitStructure.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStructure.Pull = GPIO_NOPULL;
GPIO_InitStructure.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
HAL_GPIO_Init(MAGNETO_CS_GPIO_PORT, &GPIO_InitStructure);
/* Deselect : Chip Select high */
MAGNETO_CS_HIGH();
SPIx_Init();
}
/**
* @brief de-Configures COMPASS/MAGNETO SPI interface.
* @retval None
*/
void MAGNETO_IO_DeInit(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
/* Enable CS GPIO clock and Configure GPIO PIN for Gyroscope Chip select */
MAGNETO_CS_GPIO_CLK_ENABLE();
GPIO_InitStructure.Pin = MAGNETO_CS_PIN;
GPIO_InitStructure.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStructure.Pull = GPIO_NOPULL;
GPIO_InitStructure.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
HAL_GPIO_Init(MAGNETO_CS_GPIO_PORT, &GPIO_InitStructure);
/* Deselect : Chip Select high */
MAGNETO_CS_HIGH();
HAL_GPIO_DeInit(MAGNETO_CS_GPIO_PORT, MAGNETO_INT1_PIN|MAGNETO_DRDY_PIN);
/* Uninitialize SPI bus */
SPIx_DeInit();
}
/**
* @brief Writes one byte to the COMPASS/MAGNETO.
* @param RegisterAddr specifies the COMPASS/MAGNETO register to be written.
* @param Value : Data to be written
* @retval None
*/
void MAGNETO_IO_Write(uint8_t RegisterAddr, uint8_t Value)
{
MAGNETO_CS_LOW();
__SPI_DIRECTION_1LINE_TX(&SpiHandle);
/* call SPI Read data bus function */
SPIx_Write(RegisterAddr);
SPIx_Write(Value);
MAGNETO_CS_HIGH();
}
/**
* @brief Reads a block of data from the COMPASS/MAGNETO.
* @param RegisterAddr : specifies the COMPASS/MAGNETO internal address register to read from
* @retval ACCELEROMETER register value
*/
uint8_t MAGNETO_IO_Read(uint8_t RegisterAddr)
{
MAGNETO_CS_LOW();
__SPI_DIRECTION_1LINE_TX(&SpiHandle);
SPIx_Write(RegisterAddr | 0x80);
__SPI_DIRECTION_1LINE_RX(&SpiHandle);
uint8_t val = SPIx_Read();
MAGNETO_CS_HIGH();
return val;
}
/********************************* LINK GYRO *****************************/
/**
* @brief Configures the GYRO SPI interface.
* @retval None
*/
void GYRO_IO_Init(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
/* Case GYRO not used in the demonstration software except being set in
low power mode.
To avoid access conflicts with accelerometer and magnetometer,
initialize XL_CS and MAG_CS pins then deselect these I/O */
ACCELERO_CS_GPIO_CLK_ENABLE();
GPIO_InitStructure.Pin = ACCELERO_CS_PIN;
GPIO_InitStructure.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStructure.Pull = GPIO_NOPULL;
GPIO_InitStructure.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
HAL_GPIO_Init(ACCELERO_CS_GPIO_PORT, &GPIO_InitStructure);
/* Deselect : Chip Select high */
ACCELERO_CS_HIGH();
/* Enable CS GPIO clock and Configure GPIO PIN for Gyroscope Chip select */
MAGNETO_CS_GPIO_CLK_ENABLE();
GPIO_InitStructure.Pin = MAGNETO_CS_PIN;
GPIO_InitStructure.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStructure.Pull = GPIO_NOPULL;
GPIO_InitStructure.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
HAL_GPIO_Init(MAGNETO_CS_GPIO_PORT, &GPIO_InitStructure);
/* Deselect : Chip Select high */
MAGNETO_CS_HIGH();
/* Configure the Gyroscope Control pins ---------------------------------*/
/* Enable CS GPIO clock and Configure GPIO PIN for Gyroscope Chip select */
GYRO_CS_GPIO_CLK_ENABLE();
GPIO_InitStructure.Pin = GYRO_CS_PIN;
GPIO_InitStructure.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStructure.Pull = GPIO_NOPULL;
GPIO_InitStructure.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
HAL_GPIO_Init(GYRO_CS_GPIO_PORT, &GPIO_InitStructure);
/* Deselect : Chip Select high */
GYRO_CS_HIGH();
/* Enable INT1, INT2 GPIO clock and Configure GPIO PINs to detect Interrupts */
GYRO_INT1_GPIO_CLK_ENABLE();
GPIO_InitStructure.Pin = GYRO_INT1_PIN;
GPIO_InitStructure.Mode = GPIO_MODE_INPUT;
GPIO_InitStructure.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
GPIO_InitStructure.Pull= GPIO_NOPULL;
HAL_GPIO_Init(GYRO_INT1_GPIO_PORT, &GPIO_InitStructure);
GYRO_INT2_GPIO_CLK_ENABLE();
GPIO_InitStructure.Pin = GYRO_INT2_PIN;
HAL_GPIO_Init(GYRO_INT2_GPIO_PORT, &GPIO_InitStructure);
SPIx_Init();
}
/**
* @brief de-Configures GYRO SPI interface.
* @retval None
*/
void GYRO_IO_DeInit(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
/* Enable CS GPIO clock */
GYRO_CS_GPIO_CLK_ENABLE();
GPIO_InitStructure.Pin = GYRO_CS_PIN;
GPIO_InitStructure.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStructure.Pull = GPIO_NOPULL;
GPIO_InitStructure.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
HAL_GPIO_Init(GYRO_CS_GPIO_PORT, &GPIO_InitStructure);
/* Deselect : Chip Select high */
GYRO_CS_HIGH();
GYRO_INT1_GPIO_CLK_ENABLE();
GYRO_INT2_GPIO_CLK_ENABLE();
/* Uninitialize the INT1/INT2 Pins */
HAL_GPIO_DeInit(GYRO_INT1_GPIO_PORT, GYRO_INT1_PIN);
HAL_GPIO_DeInit(GYRO_INT2_GPIO_PORT, GYRO_INT2_PIN);
/* Uninitialize SPI bus */
SPIx_DeInit();
}
/**
* @brief Writes one byte to the GYRO.
* @param pBuffer : pointer to the buffer containing the data to be written to the GYRO.
* @param WriteAddr : GYRO's internal address to write to.
* @param NumByteToWrite: Number of bytes to write.
* @retval None
*/
void GYRO_IO_Write(uint8_t* pBuffer, uint8_t WriteAddr, uint16_t NumByteToWrite)
{
/* Configure the MS bit:
- When 0, the address will remain unchanged in multiple read/write commands.
- When 1, the address will be auto incremented in multiple read/write commands.
*/
if(NumByteToWrite > 0x01)
{
WriteAddr |= (uint8_t)MULTIPLEBYTE_CMD;
}
/* Set chip select Low at the start of the transmission */
GYRO_CS_LOW();
__SPI_DIRECTION_2LINES(&SpiHandle);
/* Send the Address of the indexed register */
SPIx_WriteRead(WriteAddr);
/* Send the data that will be written into the device (MSB First) */
while(NumByteToWrite >= 0x01)
{
SPIx_WriteRead(*pBuffer);
NumByteToWrite--;
pBuffer++;
}
/* Set chip select High at the end of the transmission */
GYRO_CS_HIGH();
}
/**
* @brief Reads a block of data from the GYROSCOPE.
* @param pBuffer : pointer to the buffer that receives the data read from the GYROSCOPE.
* @param ReadAddr : GYROSCOPE's internal address to read from.
* @param NumByteToRead : number of bytes to read from the GYROSCOPE.
* @retval None
*/
void GYRO_IO_Read(uint8_t* pBuffer, uint8_t ReadAddr, uint16_t NumByteToRead)
{
if(NumByteToRead > 0x01)
{
ReadAddr |= (uint8_t)(READWRITE_CMD | MULTIPLEBYTE_CMD);
}
else
{
ReadAddr |= (uint8_t)READWRITE_CMD;
}
/* Set chip select Low at the start of the transmission */
GYRO_CS_LOW();
__SPI_DIRECTION_2LINES(&SpiHandle);
/* Send the Address of the indexed register */
SPIx_WriteRead(ReadAddr);
/* Receive the data that will be read from the device (MSB First) */
while(NumByteToRead > 0x00)
{
/* Send dummy byte (0x00) to generate the SPI clock to GYROSCOPE (Slave device) */
*pBuffer = SPIx_WriteRead(0x00);
NumByteToRead--;
pBuffer++;
}
/* Set chip select High at the end of the transmission */
GYRO_CS_HIGH();
}
#endif /* HAL_SPI_MODULE_ENABLED */
#if defined(HAL_I2C_MODULE_ENABLED)
/********************************* LINK MFX ***********************************/
/**
* @brief Initializes MFX low level.
* @retval None
*/
void MFX_IO_Init(void)
{
/* I2C2 init */
I2C2_Init();
}
/**
* @brief Deinitializes MFX low level.
* @retval None
*/
void MFX_IO_DeInit(void)
{
GPIO_InitTypeDef GPIO_InitStruct;
/* Enable wakeup gpio clock */
IDD_WAKEUP_GPIO_CLK_ENABLE();
/* MFX wakeup pin configuration */
GPIO_InitStruct.Pin = IDD_WAKEUP_PIN;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
GPIO_InitStruct.Pull = GPIO_PULLDOWN;
HAL_GPIO_Init(IDD_WAKEUP_GPIO_PORT, &GPIO_InitStruct);
/* DeInit interrupt pin : disable IRQ before to avoid spurious interrupt */
HAL_NVIC_DisableIRQ((IRQn_Type)(IDD_INT_EXTI_IRQn));
IDD_INT_GPIO_CLK_ENABLE();
HAL_GPIO_DeInit(IDD_INT_GPIO_PORT, IDD_INT_PIN);
/* I2C2 Deinit */
I2C2_DeInit();
}
/**
* @brief Configures MFX low level interrupt.
* @retval None
*/
void MFX_IO_ITConfig(void)
{
GPIO_InitTypeDef GPIO_InitStruct;
/* Enable the GPIO clock */
IDD_INT_GPIO_CLK_ENABLE();
/* MFX_OUT_IRQ (normally used for EXTI_WKUP) */
GPIO_InitStruct.Pin = IDD_INT_PIN;
GPIO_InitStruct.Pull = GPIO_PULLDOWN;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
GPIO_InitStruct.Mode = GPIO_MODE_IT_RISING;
HAL_GPIO_Init(IDD_INT_GPIO_PORT, &GPIO_InitStruct);
/* Enable and set GPIO EXTI Interrupt to the lowest priority */
HAL_NVIC_SetPriority((IRQn_Type)(IDD_INT_EXTI_IRQn), 0x0F, 0x0F);
HAL_NVIC_EnableIRQ((IRQn_Type)(IDD_INT_EXTI_IRQn));
}
/**
* @brief Configures MFX wke up pin.
* @retval None
*/
void MFX_IO_EnableWakeupPin(void)
{
GPIO_InitTypeDef GPIO_InitStruct;
/* Enable wakeup gpio clock */
IDD_WAKEUP_GPIO_CLK_ENABLE();
/* MFX wakeup pin configuration */
GPIO_InitStruct.Pin = IDD_WAKEUP_PIN;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(IDD_WAKEUP_GPIO_PORT, &GPIO_InitStruct);
}
/**
* @brief Wakeup MFX.
* @retval None
*/
void MFX_IO_Wakeup(void)
{
/* Set Wakeup pin to high to wakeup Idd measurement component from standby mode */
HAL_GPIO_WritePin(IDD_WAKEUP_GPIO_PORT, IDD_WAKEUP_PIN, GPIO_PIN_SET);
/* Wait */
HAL_Delay(1);
/* Set gpio pin basck to low */
HAL_GPIO_WritePin(IDD_WAKEUP_GPIO_PORT, IDD_WAKEUP_PIN, GPIO_PIN_RESET);
}
/**
* @brief MFX writes single data.
* @param Addr: I2C address
* @param Reg: Register address
* @param Value: Data to be written
* @retval None
*/
void MFX_IO_Write(uint16_t Addr, uint8_t Reg, uint8_t Value)
{
I2C2_WriteData(Addr, Reg, I2C_MEMADD_SIZE_8BIT, Value);
}
/**
* @brief MFX reads single data.
* @param Addr: I2C address
* @param Reg: Register address
* @retval Read data
*/
uint8_t MFX_IO_Read(uint16_t Addr, uint8_t Reg)
{
return I2C2_ReadData(Addr, Reg, I2C_MEMADD_SIZE_8BIT);
}
/**
* @brief MFX reads multiple data.
* @param Addr: I2C address
* @param Reg: Register address
* @param Buffer: Pointer to data buffer
* @param Length: Length of the data
* @retval Number of read data
*/
uint16_t MFX_IO_ReadMultiple(uint16_t Addr, uint8_t Reg, uint8_t *Buffer, uint16_t Length)
{
return I2C2_ReadBuffer(Addr, (uint16_t)Reg, I2C_MEMADD_SIZE_8BIT, Buffer, Length);
}
/**
* @brief MFX writes multiple data.
* @param Addr: I2C address
* @param Reg: Register address
* @param Buffer: Pointer to data buffer
* @param Length: Length of the data
* @retval None
*/
void MFX_IO_WriteMultiple(uint16_t Addr, uint8_t Reg, uint8_t *Buffer, uint16_t Length)
{
I2C2_WriteBuffer(Addr, (uint16_t)Reg, I2C_MEMADD_SIZE_8BIT, Buffer, Length);
}
/**
* @brief MFX delay
* @param Delay: Delay in ms
* @retval None
*/
void MFX_IO_Delay(uint32_t Delay)
{
HAL_Delay(Delay);
}
/********************************* LINK AUDIO *********************************/
/**
* @brief Initializes Audio low level.
* @retval None
*/
void AUDIO_IO_Init(void)
{
GPIO_InitTypeDef GPIO_InitStruct;
/* Enable Reset GPIO Clock */
AUDIO_RESET_GPIO_CLK_ENABLE();
/* Audio reset pin configuration */
GPIO_InitStruct.Pin = AUDIO_RESET_PIN;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(AUDIO_RESET_GPIO, &GPIO_InitStruct);
/* I2C bus init */
I2C1_Init();
/* Power Down the codec */
CODEC_AUDIO_POWER_OFF();
/* wait for a delay to insure registers erasing */
HAL_Delay(5);
/* Power on the codec */
CODEC_AUDIO_POWER_ON();
/* wait for a delay to insure registers erasing */
HAL_Delay(5);
}
/**
* @brief Deinitializes Audio low level.
* @retval None
*/
void AUDIO_IO_DeInit(void) /* TO DO */
{
GPIO_InitTypeDef GPIO_InitStruct;
/***********************************************************************/
/* In case of battery-supplied powered, there is no audio codec-based
features available. Set audio codec I/O default setting */
/***********************************************************************/
__HAL_RCC_GPIOE_CLK_ENABLE();
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP ;
GPIO_InitStruct.Pin = (GPIO_PIN_2 | GPIO_PIN_3 | GPIO_PIN_4 | GPIO_PIN_5 | GPIO_PIN_6);
GPIO_InitStruct.Pull = GPIO_PULLDOWN;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
HAL_GPIO_Init(GPIOE, &GPIO_InitStruct);
HAL_GPIO_WritePin(GPIOE, GPIO_PIN_2, GPIO_PIN_RESET);
HAL_GPIO_WritePin(GPIOE, GPIO_PIN_3, GPIO_PIN_RESET);
HAL_GPIO_WritePin(GPIOE, GPIO_PIN_4, GPIO_PIN_RESET);
HAL_GPIO_WritePin(GPIOE, GPIO_PIN_5, GPIO_PIN_RESET);
HAL_GPIO_WritePin(GPIOE, GPIO_PIN_6, GPIO_PIN_RESET);
/* I2C bus Deinit */
I2C1_DeInit();
}
/**
* @brief Writes a single data.
* @param Addr: I2C address
* @param Reg: Reg address
* @param Value: Data to be written
* @retval None
*/
void AUDIO_IO_Write(uint8_t Addr, uint8_t Reg, uint8_t Value)
{
I2C1_WriteBuffer(Addr, (uint16_t)Reg, I2C_MEMADD_SIZE_8BIT, &Value, 1);
}
/**
* @brief Reads a single data.
* @param Addr: I2C address
* @param Reg: Reg address
* @retval Data to be read
*/
uint8_t AUDIO_IO_Read(uint8_t Addr, uint8_t Reg)
{
uint8_t Read_Value = 0;
I2C1_ReadBuffer((uint16_t) Addr, (uint16_t) Reg, I2C_MEMADD_SIZE_8BIT, &Read_Value, 1);
return Read_Value;
}
/**
* @brief AUDIO Codec delay
* @param Delay: Delay in ms
* @retval None
*/
void AUDIO_IO_Delay(uint32_t Delay)
{
HAL_Delay(Delay);
}
#endif /* HAL_I2C_MODULE_ENABLED */
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/