550 lines
21 KiB
C
550 lines
21 KiB
C
/**
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******************************************************************************
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* @file stm32f4xx_spi.h
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* @author MCD Application Team
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* @version V1.1.0
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* @date 11-January-2013
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* @brief This file contains all the functions prototypes for the SPI
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* firmware library.
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******************************************************************************
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* @attention
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*
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* <h2><center>© COPYRIGHT 2013 STMicroelectronics</center></h2>
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*
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* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
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* You may not use this file except in compliance with the License.
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* You may obtain a copy of the License at:
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*
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* http://www.st.com/software_license_agreement_liberty_v2
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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******************************************************************************
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*/
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/* Define to prevent recursive inclusion -------------------------------------*/
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#ifndef __STM32F4xx_SPI_H
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#define __STM32F4xx_SPI_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* Includes ------------------------------------------------------------------*/
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#include "stm32f4xx.h"
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/** @addtogroup STM32F4xx_StdPeriph_Driver
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* @{
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*/
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/** @addtogroup SPI
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* @{
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*/
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/* Exported types ------------------------------------------------------------*/
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/**
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* @brief SPI Init structure definition
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*/
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typedef struct
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{
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uint16_t SPI_Direction; /*!< Specifies the SPI unidirectional or bidirectional data mode.
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This parameter can be a value of @ref SPI_data_direction */
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uint16_t SPI_Mode; /*!< Specifies the SPI operating mode.
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This parameter can be a value of @ref SPI_mode */
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uint16_t SPI_DataSize; /*!< Specifies the SPI data size.
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This parameter can be a value of @ref SPI_data_size */
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uint16_t SPI_CPOL; /*!< Specifies the serial clock steady state.
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This parameter can be a value of @ref SPI_Clock_Polarity */
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uint16_t SPI_CPHA; /*!< Specifies the clock active edge for the bit capture.
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This parameter can be a value of @ref SPI_Clock_Phase */
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uint16_t SPI_NSS; /*!< Specifies whether the NSS signal is managed by
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hardware (NSS pin) or by software using the SSI bit.
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This parameter can be a value of @ref SPI_Slave_Select_management */
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uint16_t SPI_BaudRatePrescaler; /*!< Specifies the Baud Rate prescaler value which will be
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used to configure the transmit and receive SCK clock.
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This parameter can be a value of @ref SPI_BaudRate_Prescaler
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@note The communication clock is derived from the master
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clock. The slave clock does not need to be set. */
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uint16_t SPI_FirstBit; /*!< Specifies whether data transfers start from MSB or LSB bit.
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This parameter can be a value of @ref SPI_MSB_LSB_transmission */
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uint16_t SPI_CRCPolynomial; /*!< Specifies the polynomial used for the CRC calculation. */
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}SPI_InitTypeDef;
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/**
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* @brief I2S Init structure definition
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*/
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typedef struct
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{
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uint16_t I2S_Mode; /*!< Specifies the I2S operating mode.
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This parameter can be a value of @ref I2S_Mode */
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uint16_t I2S_Standard; /*!< Specifies the standard used for the I2S communication.
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This parameter can be a value of @ref I2S_Standard */
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uint16_t I2S_DataFormat; /*!< Specifies the data format for the I2S communication.
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This parameter can be a value of @ref I2S_Data_Format */
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uint16_t I2S_MCLKOutput; /*!< Specifies whether the I2S MCLK output is enabled or not.
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This parameter can be a value of @ref I2S_MCLK_Output */
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uint32_t I2S_AudioFreq; /*!< Specifies the frequency selected for the I2S communication.
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This parameter can be a value of @ref I2S_Audio_Frequency */
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uint16_t I2S_CPOL; /*!< Specifies the idle state of the I2S clock.
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This parameter can be a value of @ref I2S_Clock_Polarity */
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}I2S_InitTypeDef;
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/* Exported constants --------------------------------------------------------*/
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/** @defgroup SPI_Exported_Constants
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* @{
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*/
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#define IS_SPI_ALL_PERIPH(PERIPH) (((PERIPH) == SPI1) || \
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((PERIPH) == SPI2) || \
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((PERIPH) == SPI3) || \
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((PERIPH) == SPI4) || \
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((PERIPH) == SPI5) || \
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((PERIPH) == SPI6))
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#define IS_SPI_ALL_PERIPH_EXT(PERIPH) (((PERIPH) == SPI1) || \
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((PERIPH) == SPI2) || \
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((PERIPH) == SPI3) || \
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((PERIPH) == SPI4) || \
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((PERIPH) == SPI5) || \
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((PERIPH) == SPI6) || \
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((PERIPH) == I2S2ext) || \
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((PERIPH) == I2S3ext))
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#define IS_SPI_23_PERIPH(PERIPH) (((PERIPH) == SPI2) || \
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((PERIPH) == SPI3))
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#define IS_SPI_23_PERIPH_EXT(PERIPH) (((PERIPH) == SPI2) || \
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((PERIPH) == SPI3) || \
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((PERIPH) == I2S2ext) || \
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((PERIPH) == I2S3ext))
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#define IS_I2S_EXT_PERIPH(PERIPH) (((PERIPH) == I2S2ext) || \
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((PERIPH) == I2S3ext))
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/** @defgroup SPI_data_direction
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* @{
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*/
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#define SPI_Direction_2Lines_FullDuplex ((uint16_t)0x0000)
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#define SPI_Direction_2Lines_RxOnly ((uint16_t)0x0400)
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#define SPI_Direction_1Line_Rx ((uint16_t)0x8000)
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#define SPI_Direction_1Line_Tx ((uint16_t)0xC000)
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#define IS_SPI_DIRECTION_MODE(MODE) (((MODE) == SPI_Direction_2Lines_FullDuplex) || \
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((MODE) == SPI_Direction_2Lines_RxOnly) || \
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((MODE) == SPI_Direction_1Line_Rx) || \
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((MODE) == SPI_Direction_1Line_Tx))
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/**
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* @}
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*/
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/** @defgroup SPI_mode
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* @{
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*/
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#define SPI_Mode_Master ((uint16_t)0x0104)
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#define SPI_Mode_Slave ((uint16_t)0x0000)
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#define IS_SPI_MODE(MODE) (((MODE) == SPI_Mode_Master) || \
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((MODE) == SPI_Mode_Slave))
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/**
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* @}
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*/
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/** @defgroup SPI_data_size
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* @{
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*/
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#define SPI_DataSize_16b ((uint16_t)0x0800)
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#define SPI_DataSize_8b ((uint16_t)0x0000)
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#define IS_SPI_DATASIZE(DATASIZE) (((DATASIZE) == SPI_DataSize_16b) || \
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((DATASIZE) == SPI_DataSize_8b))
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/**
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* @}
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*/
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/** @defgroup SPI_Clock_Polarity
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* @{
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*/
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#define SPI_CPOL_Low ((uint16_t)0x0000)
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#define SPI_CPOL_High ((uint16_t)0x0002)
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#define IS_SPI_CPOL(CPOL) (((CPOL) == SPI_CPOL_Low) || \
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((CPOL) == SPI_CPOL_High))
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/**
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* @}
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*/
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/** @defgroup SPI_Clock_Phase
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* @{
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*/
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#define SPI_CPHA_1Edge ((uint16_t)0x0000)
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#define SPI_CPHA_2Edge ((uint16_t)0x0001)
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#define IS_SPI_CPHA(CPHA) (((CPHA) == SPI_CPHA_1Edge) || \
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((CPHA) == SPI_CPHA_2Edge))
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/**
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* @}
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*/
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/** @defgroup SPI_Slave_Select_management
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* @{
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*/
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#define SPI_NSS_Soft ((uint16_t)0x0200)
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#define SPI_NSS_Hard ((uint16_t)0x0000)
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#define IS_SPI_NSS(NSS) (((NSS) == SPI_NSS_Soft) || \
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((NSS) == SPI_NSS_Hard))
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/**
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* @}
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*/
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/** @defgroup SPI_BaudRate_Prescaler
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* @{
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*/
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#define SPI_BaudRatePrescaler_2 ((uint16_t)0x0000)
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#define SPI_BaudRatePrescaler_4 ((uint16_t)0x0008)
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#define SPI_BaudRatePrescaler_8 ((uint16_t)0x0010)
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#define SPI_BaudRatePrescaler_16 ((uint16_t)0x0018)
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#define SPI_BaudRatePrescaler_32 ((uint16_t)0x0020)
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#define SPI_BaudRatePrescaler_64 ((uint16_t)0x0028)
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#define SPI_BaudRatePrescaler_128 ((uint16_t)0x0030)
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#define SPI_BaudRatePrescaler_256 ((uint16_t)0x0038)
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#define IS_SPI_BAUDRATE_PRESCALER(PRESCALER) (((PRESCALER) == SPI_BaudRatePrescaler_2) || \
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((PRESCALER) == SPI_BaudRatePrescaler_4) || \
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((PRESCALER) == SPI_BaudRatePrescaler_8) || \
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((PRESCALER) == SPI_BaudRatePrescaler_16) || \
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((PRESCALER) == SPI_BaudRatePrescaler_32) || \
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((PRESCALER) == SPI_BaudRatePrescaler_64) || \
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((PRESCALER) == SPI_BaudRatePrescaler_128) || \
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((PRESCALER) == SPI_BaudRatePrescaler_256))
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/**
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* @}
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*/
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/** @defgroup SPI_MSB_LSB_transmission
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* @{
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*/
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#define SPI_FirstBit_MSB ((uint16_t)0x0000)
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#define SPI_FirstBit_LSB ((uint16_t)0x0080)
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#define IS_SPI_FIRST_BIT(BIT) (((BIT) == SPI_FirstBit_MSB) || \
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((BIT) == SPI_FirstBit_LSB))
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/**
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* @}
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*/
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/** @defgroup SPI_I2S_Mode
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* @{
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*/
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#define I2S_Mode_SlaveTx ((uint16_t)0x0000)
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#define I2S_Mode_SlaveRx ((uint16_t)0x0100)
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#define I2S_Mode_MasterTx ((uint16_t)0x0200)
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#define I2S_Mode_MasterRx ((uint16_t)0x0300)
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#define IS_I2S_MODE(MODE) (((MODE) == I2S_Mode_SlaveTx) || \
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((MODE) == I2S_Mode_SlaveRx) || \
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((MODE) == I2S_Mode_MasterTx)|| \
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((MODE) == I2S_Mode_MasterRx))
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/**
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* @}
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*/
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/** @defgroup SPI_I2S_Standard
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* @{
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*/
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#define I2S_Standard_Phillips ((uint16_t)0x0000)
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#define I2S_Standard_MSB ((uint16_t)0x0010)
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#define I2S_Standard_LSB ((uint16_t)0x0020)
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#define I2S_Standard_PCMShort ((uint16_t)0x0030)
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#define I2S_Standard_PCMLong ((uint16_t)0x00B0)
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#define IS_I2S_STANDARD(STANDARD) (((STANDARD) == I2S_Standard_Phillips) || \
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((STANDARD) == I2S_Standard_MSB) || \
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((STANDARD) == I2S_Standard_LSB) || \
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((STANDARD) == I2S_Standard_PCMShort) || \
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((STANDARD) == I2S_Standard_PCMLong))
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/**
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* @}
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*/
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/** @defgroup SPI_I2S_Data_Format
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* @{
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*/
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#define I2S_DataFormat_16b ((uint16_t)0x0000)
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#define I2S_DataFormat_16bextended ((uint16_t)0x0001)
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#define I2S_DataFormat_24b ((uint16_t)0x0003)
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#define I2S_DataFormat_32b ((uint16_t)0x0005)
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#define IS_I2S_DATA_FORMAT(FORMAT) (((FORMAT) == I2S_DataFormat_16b) || \
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((FORMAT) == I2S_DataFormat_16bextended) || \
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((FORMAT) == I2S_DataFormat_24b) || \
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((FORMAT) == I2S_DataFormat_32b))
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/**
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* @}
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*/
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/** @defgroup SPI_I2S_MCLK_Output
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* @{
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*/
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#define I2S_MCLKOutput_Enable ((uint16_t)0x0200)
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#define I2S_MCLKOutput_Disable ((uint16_t)0x0000)
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#define IS_I2S_MCLK_OUTPUT(OUTPUT) (((OUTPUT) == I2S_MCLKOutput_Enable) || \
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((OUTPUT) == I2S_MCLKOutput_Disable))
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/**
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* @}
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*/
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/** @defgroup SPI_I2S_Audio_Frequency
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* @{
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*/
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#define I2S_AudioFreq_192k ((uint32_t)192000)
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#define I2S_AudioFreq_96k ((uint32_t)96000)
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#define I2S_AudioFreq_48k ((uint32_t)48000)
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#define I2S_AudioFreq_44k ((uint32_t)44100)
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#define I2S_AudioFreq_32k ((uint32_t)32000)
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#define I2S_AudioFreq_22k ((uint32_t)22050)
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#define I2S_AudioFreq_16k ((uint32_t)16000)
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#define I2S_AudioFreq_11k ((uint32_t)11025)
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#define I2S_AudioFreq_8k ((uint32_t)8000)
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#define I2S_AudioFreq_Default ((uint32_t)2)
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#define IS_I2S_AUDIO_FREQ(FREQ) ((((FREQ) >= I2S_AudioFreq_8k) && \
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((FREQ) <= I2S_AudioFreq_192k)) || \
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((FREQ) == I2S_AudioFreq_Default))
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/**
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* @}
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*/
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/** @defgroup SPI_I2S_Clock_Polarity
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* @{
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*/
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#define I2S_CPOL_Low ((uint16_t)0x0000)
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#define I2S_CPOL_High ((uint16_t)0x0008)
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#define IS_I2S_CPOL(CPOL) (((CPOL) == I2S_CPOL_Low) || \
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((CPOL) == I2S_CPOL_High))
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/**
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* @}
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*/
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/** @defgroup SPI_I2S_DMA_transfer_requests
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* @{
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*/
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#define SPI_I2S_DMAReq_Tx ((uint16_t)0x0002)
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#define SPI_I2S_DMAReq_Rx ((uint16_t)0x0001)
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#define IS_SPI_I2S_DMAREQ(DMAREQ) ((((DMAREQ) & (uint16_t)0xFFFC) == 0x00) && ((DMAREQ) != 0x00))
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/**
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* @}
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*/
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/** @defgroup SPI_NSS_internal_software_management
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* @{
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*/
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#define SPI_NSSInternalSoft_Set ((uint16_t)0x0100)
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#define SPI_NSSInternalSoft_Reset ((uint16_t)0xFEFF)
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#define IS_SPI_NSS_INTERNAL(INTERNAL) (((INTERNAL) == SPI_NSSInternalSoft_Set) || \
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((INTERNAL) == SPI_NSSInternalSoft_Reset))
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/**
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* @}
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*/
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/** @defgroup SPI_CRC_Transmit_Receive
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* @{
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*/
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#define SPI_CRC_Tx ((uint8_t)0x00)
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#define SPI_CRC_Rx ((uint8_t)0x01)
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#define IS_SPI_CRC(CRC) (((CRC) == SPI_CRC_Tx) || ((CRC) == SPI_CRC_Rx))
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/**
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* @}
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*/
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/** @defgroup SPI_direction_transmit_receive
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* @{
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*/
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#define SPI_Direction_Rx ((uint16_t)0xBFFF)
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#define SPI_Direction_Tx ((uint16_t)0x4000)
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#define IS_SPI_DIRECTION(DIRECTION) (((DIRECTION) == SPI_Direction_Rx) || \
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((DIRECTION) == SPI_Direction_Tx))
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/**
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* @}
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*/
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/** @defgroup SPI_I2S_interrupts_definition
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* @{
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*/
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#define SPI_I2S_IT_TXE ((uint8_t)0x71)
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#define SPI_I2S_IT_RXNE ((uint8_t)0x60)
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#define SPI_I2S_IT_ERR ((uint8_t)0x50)
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#define I2S_IT_UDR ((uint8_t)0x53)
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#define SPI_I2S_IT_TIFRFE ((uint8_t)0x58)
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#define IS_SPI_I2S_CONFIG_IT(IT) (((IT) == SPI_I2S_IT_TXE) || \
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((IT) == SPI_I2S_IT_RXNE) || \
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((IT) == SPI_I2S_IT_ERR))
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#define SPI_I2S_IT_OVR ((uint8_t)0x56)
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#define SPI_IT_MODF ((uint8_t)0x55)
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#define SPI_IT_CRCERR ((uint8_t)0x54)
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#define IS_SPI_I2S_CLEAR_IT(IT) (((IT) == SPI_IT_CRCERR))
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#define IS_SPI_I2S_GET_IT(IT) (((IT) == SPI_I2S_IT_RXNE)|| ((IT) == SPI_I2S_IT_TXE) || \
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((IT) == SPI_IT_CRCERR) || ((IT) == SPI_IT_MODF) || \
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((IT) == SPI_I2S_IT_OVR) || ((IT) == I2S_IT_UDR) ||\
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((IT) == SPI_I2S_IT_TIFRFE))
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/**
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* @}
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*/
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/** @defgroup SPI_I2S_flags_definition
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* @{
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*/
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#define SPI_I2S_FLAG_RXNE ((uint16_t)0x0001)
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#define SPI_I2S_FLAG_TXE ((uint16_t)0x0002)
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#define I2S_FLAG_CHSIDE ((uint16_t)0x0004)
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#define I2S_FLAG_UDR ((uint16_t)0x0008)
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#define SPI_FLAG_CRCERR ((uint16_t)0x0010)
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#define SPI_FLAG_MODF ((uint16_t)0x0020)
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#define SPI_I2S_FLAG_OVR ((uint16_t)0x0040)
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#define SPI_I2S_FLAG_BSY ((uint16_t)0x0080)
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#define SPI_I2S_FLAG_TIFRFE ((uint16_t)0x0100)
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#define IS_SPI_I2S_CLEAR_FLAG(FLAG) (((FLAG) == SPI_FLAG_CRCERR))
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#define IS_SPI_I2S_GET_FLAG(FLAG) (((FLAG) == SPI_I2S_FLAG_BSY) || ((FLAG) == SPI_I2S_FLAG_OVR) || \
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((FLAG) == SPI_FLAG_MODF) || ((FLAG) == SPI_FLAG_CRCERR) || \
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((FLAG) == I2S_FLAG_UDR) || ((FLAG) == I2S_FLAG_CHSIDE) || \
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((FLAG) == SPI_I2S_FLAG_TXE) || ((FLAG) == SPI_I2S_FLAG_RXNE)|| \
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((FLAG) == SPI_I2S_FLAG_TIFRFE))
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/**
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* @}
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*/
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/** @defgroup SPI_CRC_polynomial
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* @{
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*/
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#define IS_SPI_CRC_POLYNOMIAL(POLYNOMIAL) ((POLYNOMIAL) >= 0x1)
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/**
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* @}
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*/
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/** @defgroup SPI_I2S_Legacy
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* @{
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*/
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#define SPI_DMAReq_Tx SPI_I2S_DMAReq_Tx
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#define SPI_DMAReq_Rx SPI_I2S_DMAReq_Rx
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#define SPI_IT_TXE SPI_I2S_IT_TXE
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#define SPI_IT_RXNE SPI_I2S_IT_RXNE
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#define SPI_IT_ERR SPI_I2S_IT_ERR
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#define SPI_IT_OVR SPI_I2S_IT_OVR
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#define SPI_FLAG_RXNE SPI_I2S_FLAG_RXNE
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#define SPI_FLAG_TXE SPI_I2S_FLAG_TXE
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#define SPI_FLAG_OVR SPI_I2S_FLAG_OVR
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#define SPI_FLAG_BSY SPI_I2S_FLAG_BSY
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#define SPI_DeInit SPI_I2S_DeInit
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#define SPI_ITConfig SPI_I2S_ITConfig
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#define SPI_DMACmd SPI_I2S_DMACmd
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#define SPI_SendData SPI_I2S_SendData
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#define SPI_ReceiveData SPI_I2S_ReceiveData
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#define SPI_GetFlagStatus SPI_I2S_GetFlagStatus
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#define SPI_ClearFlag SPI_I2S_ClearFlag
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#define SPI_GetITStatus SPI_I2S_GetITStatus
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#define SPI_ClearITPendingBit SPI_I2S_ClearITPendingBit
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/**
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* @}
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*/
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|
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/**
|
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* @}
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*/
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|
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/* Exported macro ------------------------------------------------------------*/
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/* Exported functions --------------------------------------------------------*/
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|
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/* Function used to set the SPI configuration to the default reset state *****/
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void SPI_I2S_DeInit(SPI_TypeDef* SPIx);
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|
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/* Initialization and Configuration functions *********************************/
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void SPI_Init(SPI_TypeDef* SPIx, SPI_InitTypeDef* SPI_InitStruct);
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void I2S_Init(SPI_TypeDef* SPIx, I2S_InitTypeDef* I2S_InitStruct);
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void SPI_StructInit(SPI_InitTypeDef* SPI_InitStruct);
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void I2S_StructInit(I2S_InitTypeDef* I2S_InitStruct);
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void SPI_Cmd(SPI_TypeDef* SPIx, FunctionalState NewState);
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void I2S_Cmd(SPI_TypeDef* SPIx, FunctionalState NewState);
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void SPI_DataSizeConfig(SPI_TypeDef* SPIx, uint16_t SPI_DataSize);
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void SPI_BiDirectionalLineConfig(SPI_TypeDef* SPIx, uint16_t SPI_Direction);
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void SPI_NSSInternalSoftwareConfig(SPI_TypeDef* SPIx, uint16_t SPI_NSSInternalSoft);
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void SPI_SSOutputCmd(SPI_TypeDef* SPIx, FunctionalState NewState);
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void SPI_TIModeCmd(SPI_TypeDef* SPIx, FunctionalState NewState);
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|
|
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void I2S_FullDuplexConfig(SPI_TypeDef* I2Sxext, I2S_InitTypeDef* I2S_InitStruct);
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|
|
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/* Data transfers functions ***************************************************/
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void SPI_I2S_SendData(SPI_TypeDef* SPIx, uint16_t Data);
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|
uint16_t SPI_I2S_ReceiveData(SPI_TypeDef* SPIx);
|
|
|
|
/* Hardware CRC Calculation functions *****************************************/
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|
void SPI_CalculateCRC(SPI_TypeDef* SPIx, FunctionalState NewState);
|
|
void SPI_TransmitCRC(SPI_TypeDef* SPIx);
|
|
uint16_t SPI_GetCRC(SPI_TypeDef* SPIx, uint8_t SPI_CRC);
|
|
uint16_t SPI_GetCRCPolynomial(SPI_TypeDef* SPIx);
|
|
|
|
/* DMA transfers management functions *****************************************/
|
|
void SPI_I2S_DMACmd(SPI_TypeDef* SPIx, uint16_t SPI_I2S_DMAReq, FunctionalState NewState);
|
|
|
|
/* Interrupts and flags management functions **********************************/
|
|
void SPI_I2S_ITConfig(SPI_TypeDef* SPIx, uint8_t SPI_I2S_IT, FunctionalState NewState);
|
|
FlagStatus SPI_I2S_GetFlagStatus(SPI_TypeDef* SPIx, uint16_t SPI_I2S_FLAG);
|
|
void SPI_I2S_ClearFlag(SPI_TypeDef* SPIx, uint16_t SPI_I2S_FLAG);
|
|
ITStatus SPI_I2S_GetITStatus(SPI_TypeDef* SPIx, uint8_t SPI_I2S_IT);
|
|
void SPI_I2S_ClearITPendingBit(SPI_TypeDef* SPIx, uint8_t SPI_I2S_IT);
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /*__STM32F4xx_SPI_H */
|
|
|
|
/**
|
|
* @}
|
|
*/
|
|
|
|
/**
|
|
* @}
|
|
*/
|
|
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/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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