/** ****************************************************************************** * @file stm32f0xx_spi.h * @author MCD Application Team * @version V1.5.1 * @date 13-October-2021 * @brief This file contains all the functions prototypes for the SPI * firmware library. ****************************************************************************** * @attention * * Copyright (c) 2014 STMicroelectronics. * All rights reserved. * * This software is licensed under terms that can be found in the LICENSE file * in the root directory of this software component. * If no LICENSE file comes with this software, it is provided AS-IS. * ****************************************************************************** */ /* Define to prevent recursive inclusion -------------------------------------*/ #ifndef __STM32F0XX_SPI_H #define __STM32F0XX_SPI_H #ifdef __cplusplus extern "C" { #endif /* Includes ------------------------------------------------------------------*/ #include "stm32f0xx.h" /** @addtogroup STM32F0xx_StdPeriph_Driver * @{ */ /** @addtogroup SPI * @{ */ /* Exported types ------------------------------------------------------------*/ /** * @brief SPI Init structure definition */ typedef struct { uint16_t SPI_Direction; /*!< Specifies the SPI unidirectional or bidirectional data mode. This parameter can be a value of @ref SPI_data_direction */ uint16_t SPI_Mode; /*!< Specifies the SPI mode (Master/Slave). This parameter can be a value of @ref SPI_mode */ uint16_t SPI_DataSize; /*!< Specifies the SPI data size. This parameter can be a value of @ref SPI_data_size */ uint16_t SPI_CPOL; /*!< Specifies the serial clock steady state. This parameter can be a value of @ref SPI_Clock_Polarity */ uint16_t SPI_CPHA; /*!< Specifies the clock active edge for the bit capture. This parameter can be a value of @ref SPI_Clock_Phase */ uint16_t SPI_NSS; /*!< Specifies whether the NSS signal is managed by hardware (NSS pin) or by software using the SSI bit. This parameter can be a value of @ref SPI_Slave_Select_management */ uint16_t SPI_BaudRatePrescaler; /*!< Specifies the Baud Rate prescaler value which will be used to configure the transmit and receive SCK clock. This parameter can be a value of @ref SPI_BaudRate_Prescaler @note The communication clock is derived from the master clock. The slave clock does not need to be set. */ uint16_t SPI_FirstBit; /*!< Specifies whether data transfers start from MSB or LSB bit. This parameter can be a value of @ref SPI_MSB_LSB_transmission */ uint16_t SPI_CRCPolynomial; /*!< Specifies the polynomial used for the CRC calculation. */ }SPI_InitTypeDef; /** * @brief I2S Init structure definition * @note These parameters are not available for STM32F030 devices. */ typedef struct { uint16_t I2S_Mode; /*!< Specifies the I2S operating mode. This parameter can be a value of @ref SPI_I2S_Mode */ uint16_t I2S_Standard; /*!< Specifies the standard used for the I2S communication. This parameter can be a value of @ref SPI_I2S_Standard */ uint16_t I2S_DataFormat; /*!< Specifies the data format for the I2S communication. This parameter can be a value of @ref SPI_I2S_Data_Format */ uint16_t I2S_MCLKOutput; /*!< Specifies whether the I2S MCLK output is enabled or not. This parameter can be a value of @ref SPI_I2S_MCLK_Output */ uint32_t I2S_AudioFreq; /*!< Specifies the frequency selected for the I2S communication. This parameter can be a value of @ref SPI_I2S_Audio_Frequency */ uint16_t I2S_CPOL; /*!< Specifies the idle state of the I2S clock. This parameter can be a value of @ref SPI_I2S_Clock_Polarity */ }I2S_InitTypeDef; /* Exported constants --------------------------------------------------------*/ /** @defgroup SPI_Exported_Constants * @{ */ #define IS_SPI_ALL_PERIPH(PERIPH) (((PERIPH) == SPI1) || \ ((PERIPH) == SPI2)) #define IS_SPI_1_PERIPH(PERIPH) (((PERIPH) == SPI1)) /** @defgroup SPI_data_direction * @{ */ #define SPI_Direction_2Lines_FullDuplex ((uint16_t)0x0000) #define SPI_Direction_2Lines_RxOnly ((uint16_t)0x0400) #define SPI_Direction_1Line_Rx ((uint16_t)0x8000) #define SPI_Direction_1Line_Tx ((uint16_t)0xC000) #define IS_SPI_DIRECTION_MODE(MODE) (((MODE) == SPI_Direction_2Lines_FullDuplex) || \ ((MODE) == SPI_Direction_2Lines_RxOnly) || \ ((MODE) == SPI_Direction_1Line_Rx) || \ ((MODE) == SPI_Direction_1Line_Tx)) /** * @} */ /** @defgroup SPI_mode * @{ */ #define SPI_Mode_Master ((uint16_t)0x0104) #define SPI_Mode_Slave ((uint16_t)0x0000) #define IS_SPI_MODE(MODE) (((MODE) == SPI_Mode_Master) || \ ((MODE) == SPI_Mode_Slave)) /** * @} */ /** @defgroup SPI_data_size * @{ */ #define SPI_DataSize_4b ((uint16_t)0x0300) #define SPI_DataSize_5b ((uint16_t)0x0400) #define SPI_DataSize_6b ((uint16_t)0x0500) #define SPI_DataSize_7b ((uint16_t)0x0600) #define SPI_DataSize_8b ((uint16_t)0x0700) #define SPI_DataSize_9b ((uint16_t)0x0800) #define SPI_DataSize_10b ((uint16_t)0x0900) #define SPI_DataSize_11b ((uint16_t)0x0A00) #define SPI_DataSize_12b ((uint16_t)0x0B00) #define SPI_DataSize_13b ((uint16_t)0x0C00) #define SPI_DataSize_14b ((uint16_t)0x0D00) #define SPI_DataSize_15b ((uint16_t)0x0E00) #define SPI_DataSize_16b ((uint16_t)0x0F00) #define IS_SPI_DATA_SIZE(SIZE) (((SIZE) == SPI_DataSize_4b) || \ ((SIZE) == SPI_DataSize_5b) || \ ((SIZE) == SPI_DataSize_6b) || \ ((SIZE) == SPI_DataSize_7b) || \ ((SIZE) == SPI_DataSize_8b) || \ ((SIZE) == SPI_DataSize_9b) || \ ((SIZE) == SPI_DataSize_10b) || \ ((SIZE) == SPI_DataSize_11b) || \ ((SIZE) == SPI_DataSize_12b) || \ ((SIZE) == SPI_DataSize_13b) || \ ((SIZE) == SPI_DataSize_14b) || \ ((SIZE) == SPI_DataSize_15b) || \ ((SIZE) == SPI_DataSize_16b)) /** * @} */ /** @defgroup SPI_CRC_length * @{ */ #define SPI_CRCLength_8b ((uint16_t)0x0000) #define SPI_CRCLength_16b SPI_CR1_CRCL #define IS_SPI_CRC_LENGTH(LENGTH) (((LENGTH) == SPI_CRCLength_8b) || \ ((LENGTH) == SPI_CRCLength_16b)) /** * @} */ /** @defgroup SPI_Clock_Polarity * @{ */ #define SPI_CPOL_Low ((uint16_t)0x0000) #define SPI_CPOL_High SPI_CR1_CPOL #define IS_SPI_CPOL(CPOL) (((CPOL) == SPI_CPOL_Low) || \ ((CPOL) == SPI_CPOL_High)) /** * @} */ /** @defgroup SPI_Clock_Phase * @{ */ #define SPI_CPHA_1Edge ((uint16_t)0x0000) #define SPI_CPHA_2Edge SPI_CR1_CPHA #define IS_SPI_CPHA(CPHA) (((CPHA) == SPI_CPHA_1Edge) || \ ((CPHA) == SPI_CPHA_2Edge)) /** * @} */ /** @defgroup SPI_Slave_Select_management * @{ */ #define SPI_NSS_Soft SPI_CR1_SSM #define SPI_NSS_Hard ((uint16_t)0x0000) #define IS_SPI_NSS(NSS) (((NSS) == SPI_NSS_Soft) || \ ((NSS) == SPI_NSS_Hard)) /** * @} */ /** @defgroup SPI_BaudRate_Prescaler * @{ */ #define SPI_BaudRatePrescaler_2 ((uint16_t)0x0000) #define SPI_BaudRatePrescaler_4 ((uint16_t)0x0008) #define SPI_BaudRatePrescaler_8 ((uint16_t)0x0010) #define SPI_BaudRatePrescaler_16 ((uint16_t)0x0018) #define SPI_BaudRatePrescaler_32 ((uint16_t)0x0020) #define SPI_BaudRatePrescaler_64 ((uint16_t)0x0028) #define SPI_BaudRatePrescaler_128 ((uint16_t)0x0030) #define SPI_BaudRatePrescaler_256 ((uint16_t)0x0038) #define IS_SPI_BAUDRATE_PRESCALER(PRESCALER) (((PRESCALER) == SPI_BaudRatePrescaler_2) || \ ((PRESCALER) == SPI_BaudRatePrescaler_4) || \ ((PRESCALER) == SPI_BaudRatePrescaler_8) || \ ((PRESCALER) == SPI_BaudRatePrescaler_16) || \ ((PRESCALER) == SPI_BaudRatePrescaler_32) || \ ((PRESCALER) == SPI_BaudRatePrescaler_64) || \ ((PRESCALER) == SPI_BaudRatePrescaler_128) || \ ((PRESCALER) == SPI_BaudRatePrescaler_256)) /** * @} */ /** @defgroup SPI_MSB_LSB_transmission * @{ */ #define SPI_FirstBit_MSB ((uint16_t)0x0000) #define SPI_FirstBit_LSB SPI_CR1_LSBFIRST #define IS_SPI_FIRST_BIT(BIT) (((BIT) == SPI_FirstBit_MSB) || \ ((BIT) == SPI_FirstBit_LSB)) /** * @} */ /** @defgroup SPI_I2S_Mode * @{ */ #define I2S_Mode_SlaveTx ((uint16_t)0x0000) #define I2S_Mode_SlaveRx ((uint16_t)0x0100) #define I2S_Mode_MasterTx ((uint16_t)0x0200) #define I2S_Mode_MasterRx ((uint16_t)0x0300) #define IS_I2S_MODE(MODE) (((MODE) == I2S_Mode_SlaveTx) || \ ((MODE) == I2S_Mode_SlaveRx) || \ ((MODE) == I2S_Mode_MasterTx)|| \ ((MODE) == I2S_Mode_MasterRx)) /** * @} */ /** @defgroup SPI_I2S_Standard * @{ */ #define I2S_Standard_Phillips ((uint16_t)0x0000) #define I2S_Standard_MSB ((uint16_t)0x0010) #define I2S_Standard_LSB ((uint16_t)0x0020) #define I2S_Standard_PCMShort ((uint16_t)0x0030) #define I2S_Standard_PCMLong ((uint16_t)0x00B0) #define IS_I2S_STANDARD(STANDARD) (((STANDARD) == I2S_Standard_Phillips) || \ ((STANDARD) == I2S_Standard_MSB) || \ ((STANDARD) == I2S_Standard_LSB) || \ ((STANDARD) == I2S_Standard_PCMShort) || \ ((STANDARD) == I2S_Standard_PCMLong)) /** * @} */ /** @defgroup SPI_I2S_Data_Format * @{ */ #define I2S_DataFormat_16b ((uint16_t)0x0000) #define I2S_DataFormat_16bextended ((uint16_t)0x0001) #define I2S_DataFormat_24b ((uint16_t)0x0003) #define I2S_DataFormat_32b ((uint16_t)0x0005) #define IS_I2S_DATA_FORMAT(FORMAT) (((FORMAT) == I2S_DataFormat_16b) || \ ((FORMAT) == I2S_DataFormat_16bextended) || \ ((FORMAT) == I2S_DataFormat_24b) || \ ((FORMAT) == I2S_DataFormat_32b)) /** * @} */ /** @defgroup SPI_I2S_MCLK_Output * @{ */ #define I2S_MCLKOutput_Enable SPI_I2SPR_MCKOE #define I2S_MCLKOutput_Disable ((uint16_t)0x0000) #define IS_I2S_MCLK_OUTPUT(OUTPUT) (((OUTPUT) == I2S_MCLKOutput_Enable) || \ ((OUTPUT) == I2S_MCLKOutput_Disable)) /** * @} */ /** @defgroup SPI_I2S_Audio_Frequency * @{ */ #define I2S_AudioFreq_192k ((uint32_t)192000) #define I2S_AudioFreq_96k ((uint32_t)96000) #define I2S_AudioFreq_48k ((uint32_t)48000) #define I2S_AudioFreq_44k ((uint32_t)44100) #define I2S_AudioFreq_32k ((uint32_t)32000) #define I2S_AudioFreq_22k ((uint32_t)22050) #define I2S_AudioFreq_16k ((uint32_t)16000) #define I2S_AudioFreq_11k ((uint32_t)11025) #define I2S_AudioFreq_8k ((uint32_t)8000) #define I2S_AudioFreq_Default ((uint32_t)2) #define IS_I2S_AUDIO_FREQ(FREQ) ((((FREQ) >= I2S_AudioFreq_8k) && \ ((FREQ) <= I2S_AudioFreq_192k)) || \ ((FREQ) == I2S_AudioFreq_Default)) /** * @} */ /** @defgroup SPI_I2S_Clock_Polarity * @{ */ #define I2S_CPOL_Low ((uint16_t)0x0000) #define I2S_CPOL_High SPI_I2SCFGR_CKPOL #define IS_I2S_CPOL(CPOL) (((CPOL) == I2S_CPOL_Low) || \ ((CPOL) == I2S_CPOL_High)) /** * @} */ /** @defgroup SPI_FIFO_reception_threshold * @{ */ #define SPI_RxFIFOThreshold_HF ((uint16_t)0x0000) #define SPI_RxFIFOThreshold_QF SPI_CR2_FRXTH #define IS_SPI_RX_FIFO_THRESHOLD(THRESHOLD) (((THRESHOLD) == SPI_RxFIFOThreshold_HF) || \ ((THRESHOLD) == SPI_RxFIFOThreshold_QF)) /** * @} */ /** @defgroup SPI_I2S_DMA_transfer_requests * @{ */ #define SPI_I2S_DMAReq_Tx SPI_CR2_TXDMAEN #define SPI_I2S_DMAReq_Rx SPI_CR2_RXDMAEN #define IS_SPI_I2S_DMA_REQ(REQ) ((((REQ) & (uint16_t)0xFFFC) == 0x00) && ((REQ) != 0x00)) /** * @} */ /** @defgroup SPI_last_DMA_transfers * @{ */ #define SPI_LastDMATransfer_TxEvenRxEven ((uint16_t)0x0000) #define SPI_LastDMATransfer_TxOddRxEven ((uint16_t)0x4000) #define SPI_LastDMATransfer_TxEvenRxOdd ((uint16_t)0x2000) #define SPI_LastDMATransfer_TxOddRxOdd ((uint16_t)0x6000) #define IS_SPI_LAST_DMA_TRANSFER(TRANSFER) (((TRANSFER) == SPI_LastDMATransfer_TxEvenRxEven) || \ ((TRANSFER) == SPI_LastDMATransfer_TxOddRxEven) || \ ((TRANSFER) == SPI_LastDMATransfer_TxEvenRxOdd) || \ ((TRANSFER) == SPI_LastDMATransfer_TxOddRxOdd)) /** * @} */ /** @defgroup SPI_NSS_internal_software_management * @{ */ #define SPI_NSSInternalSoft_Set SPI_CR1_SSI #define SPI_NSSInternalSoft_Reset ((uint16_t)0xFEFF) #define IS_SPI_NSS_INTERNAL(INTERNAL) (((INTERNAL) == SPI_NSSInternalSoft_Set) || \ ((INTERNAL) == SPI_NSSInternalSoft_Reset)) /** * @} */ /** @defgroup SPI_CRC_Transmit_Receive * @{ */ #define SPI_CRC_Tx ((uint8_t)0x00) #define SPI_CRC_Rx ((uint8_t)0x01) #define IS_SPI_CRC(CRC) (((CRC) == SPI_CRC_Tx) || ((CRC) == SPI_CRC_Rx)) /** * @} */ /** @defgroup SPI_direction_transmit_receive * @{ */ #define SPI_Direction_Rx ((uint16_t)0xBFFF) #define SPI_Direction_Tx ((uint16_t)0x4000) #define IS_SPI_DIRECTION(DIRECTION) (((DIRECTION) == SPI_Direction_Rx) || \ ((DIRECTION) == SPI_Direction_Tx)) /** * @} */ /** @defgroup SPI_I2S_interrupts_definition * @{ */ #define SPI_I2S_IT_TXE ((uint8_t)0x71) #define SPI_I2S_IT_RXNE ((uint8_t)0x60) #define SPI_I2S_IT_ERR ((uint8_t)0x50) #define IS_SPI_I2S_CONFIG_IT(IT) (((IT) == SPI_I2S_IT_TXE) || \ ((IT) == SPI_I2S_IT_RXNE) || \ ((IT) == SPI_I2S_IT_ERR)) #define I2S_IT_UDR ((uint8_t)0x53) #define SPI_IT_MODF ((uint8_t)0x55) #define SPI_I2S_IT_OVR ((uint8_t)0x56) #define SPI_I2S_IT_FRE ((uint8_t)0x58) #define IS_SPI_I2S_GET_IT(IT) (((IT) == SPI_I2S_IT_RXNE) || ((IT) == SPI_I2S_IT_TXE) || \ ((IT) == SPI_I2S_IT_OVR) || ((IT) == SPI_IT_MODF) || \ ((IT) == SPI_I2S_IT_FRE)|| ((IT) == I2S_IT_UDR)) /** * @} */ /** @defgroup SPI_transmission_fifo_status_level * @{ */ #define SPI_TransmissionFIFOStatus_Empty ((uint16_t)0x0000) #define SPI_TransmissionFIFOStatus_1QuarterFull ((uint16_t)0x0800) #define SPI_TransmissionFIFOStatus_HalfFull ((uint16_t)0x1000) #define SPI_TransmissionFIFOStatus_Full ((uint16_t)0x1800) /** * @} */ /** @defgroup SPI_reception_fifo_status_level * @{ */ #define SPI_ReceptionFIFOStatus_Empty ((uint16_t)0x0000) #define SPI_ReceptionFIFOStatus_1QuarterFull ((uint16_t)0x0200) #define SPI_ReceptionFIFOStatus_HalfFull ((uint16_t)0x0400) #define SPI_ReceptionFIFOStatus_Full ((uint16_t)0x0600) /** * @} */ /** @defgroup SPI_I2S_flags_definition * @{ */ #define SPI_I2S_FLAG_RXNE SPI_SR_RXNE #define SPI_I2S_FLAG_TXE SPI_SR_TXE #define I2S_FLAG_CHSIDE SPI_SR_CHSIDE #define I2S_FLAG_UDR SPI_SR_UDR #define SPI_FLAG_CRCERR SPI_SR_CRCERR #define SPI_FLAG_MODF SPI_SR_MODF #define SPI_I2S_FLAG_OVR SPI_SR_OVR #define SPI_I2S_FLAG_BSY SPI_SR_BSY #define SPI_I2S_FLAG_FRE SPI_SR_FRE #define IS_SPI_CLEAR_FLAG(FLAG) (((FLAG) == SPI_FLAG_CRCERR)) #define IS_SPI_I2S_GET_FLAG(FLAG) (((FLAG) == SPI_I2S_FLAG_BSY) || ((FLAG) == SPI_I2S_FLAG_OVR) || \ ((FLAG) == SPI_FLAG_MODF) || ((FLAG) == SPI_FLAG_CRCERR) || \ ((FLAG) == SPI_I2S_FLAG_TXE) || ((FLAG) == SPI_I2S_FLAG_RXNE)|| \ ((FLAG) == SPI_I2S_FLAG_FRE)|| ((FLAG) == I2S_FLAG_CHSIDE)|| \ ((FLAG) == I2S_FLAG_UDR)) /** * @} */ /** @defgroup SPI_CRC_polynomial * @{ */ #define IS_SPI_CRC_POLYNOMIAL(POLYNOMIAL) ((POLYNOMIAL) >= 0x1) /** * @} */ /** * @} */ /* Exported macro ------------------------------------------------------------*/ /* Exported functions ------------------------------------------------------- */ /* Initialization and Configuration functions *********************************/ void SPI_I2S_DeInit(SPI_TypeDef* SPIx); void SPI_Init(SPI_TypeDef* SPIx, SPI_InitTypeDef* SPI_InitStruct); void I2S_Init(SPI_TypeDef* SPIx, I2S_InitTypeDef* I2S_InitStruct); /*!< Not applicable for STM32F030 devices */ void SPI_StructInit(SPI_InitTypeDef* SPI_InitStruct); void I2S_StructInit(I2S_InitTypeDef* I2S_InitStruct); /*!< Not applicable for STM32F030 devices */ void SPI_TIModeCmd(SPI_TypeDef* SPIx, FunctionalState NewState); void SPI_NSSPulseModeCmd(SPI_TypeDef* SPIx, FunctionalState NewState); void SPI_Cmd(SPI_TypeDef* SPIx, FunctionalState NewState); void I2S_Cmd(SPI_TypeDef* SPIx, FunctionalState NewState); /*!< Not applicable for STM32F030 devices */ void SPI_DataSizeConfig(SPI_TypeDef* SPIx, uint16_t SPI_DataSize); void SPI_RxFIFOThresholdConfig(SPI_TypeDef* SPIx, uint16_t SPI_RxFIFOThreshold); void SPI_BiDirectionalLineConfig(SPI_TypeDef* SPIx, uint16_t SPI_Direction); void SPI_NSSInternalSoftwareConfig(SPI_TypeDef* SPIx, uint16_t SPI_NSSInternalSoft); void SPI_SSOutputCmd(SPI_TypeDef* SPIx, FunctionalState NewState); /* Data transfers functions ***************************************************/ void SPI_SendData8(SPI_TypeDef* SPIx, uint8_t Data); void SPI_I2S_SendData16(SPI_TypeDef* SPIx, uint16_t Data); uint8_t SPI_ReceiveData8(SPI_TypeDef* SPIx); uint16_t SPI_I2S_ReceiveData16(SPI_TypeDef* SPIx); /* Hardware CRC Calculation functions *****************************************/ void SPI_CRCLengthConfig(SPI_TypeDef* SPIx, uint16_t SPI_CRCLength); 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); void SPI_LastDMATransferCmd(SPI_TypeDef* SPIx, uint16_t SPI_LastDMATransfer); /* Interrupts and flags management functions **********************************/ void SPI_I2S_ITConfig(SPI_TypeDef* SPIx, uint8_t SPI_I2S_IT, FunctionalState NewState); uint16_t SPI_GetTransmissionFIFOStatus(SPI_TypeDef* SPIx); uint16_t SPI_GetReceptionFIFOStatus(SPI_TypeDef* SPIx); 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); #ifdef __cplusplus } #endif #endif /*__STM32F0XX_SPI_H */ /** * @} */ /** * @} */