/********************************** (C) COPYRIGHT ******************************* * File Name : ch32x035_spi.h * Author : WCH * Version : V1.0.0 * Date : 2023/04/06 * Description : This file contains all the functions prototypes for the * SPI firmware library. ********************************************************************************* * Copyright (c) 2021 Nanjing Qinheng Microelectronics Co., Ltd. * Attention: This software (modified or not) and binary are used for * microcontroller manufactured by Nanjing Qinheng Microelectronics. *******************************************************************************/ #ifndef __CH32X035_SPI_H #define __CH32X035_SPI_H #ifdef __cplusplus extern "C" { #endif #include "ch32x035.h" /* 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 operating mode. 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_transmission */ uint16_t SPI_CRCPolynomial; /* Specifies the polynomial used for the CRC calculation. */ } SPI_InitTypeDef; /* 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) /* SPI_mode */ #define SPI_Mode_Master ((uint16_t)0x0104) #define SPI_Mode_Slave ((uint16_t)0x0000) /* SPI_data_size */ #define SPI_DataSize_16b ((uint16_t)0x0800) #define SPI_DataSize_8b ((uint16_t)0x0000) /* SPI_Clock_Polarity */ #define SPI_CPOL_Low ((uint16_t)0x0000) #define SPI_CPOL_High ((uint16_t)0x0002) /* SPI_Clock_Phase */ #define SPI_CPHA_1Edge ((uint16_t)0x0000) #define SPI_CPHA_2Edge ((uint16_t)0x0001) /* SPI_Slave_Select_management */ #define SPI_NSS_Soft ((uint16_t)0x0200) #define SPI_NSS_Hard ((uint16_t)0x0000) /* 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) /* SPI_MSB_LSB_transmission */ #define SPI_FirstBit_MSB ((uint16_t)0x0000) #define SPI_FirstBit_LSB ((uint16_t)0x0080)//not support SPI slave mode /* SPI_I2S_DMA_transfer_requests */ #define SPI_I2S_DMAReq_Tx ((uint16_t)0x0002) #define SPI_I2S_DMAReq_Rx ((uint16_t)0x0001) /* SPI_NSS_internal_software_management */ #define SPI_NSSInternalSoft_Set ((uint16_t)0x0100) #define SPI_NSSInternalSoft_Reset ((uint16_t)0xFEFF) /* SPI_CRC_Transmit_Receive */ #define SPI_CRC_Tx ((uint8_t)0x00) #define SPI_CRC_Rx ((uint8_t)0x01) /* SPI_direction_transmit_receive */ #define SPI_Direction_Rx ((uint16_t)0xBFFF) #define SPI_Direction_Tx ((uint16_t)0x4000) /* 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 SPI_I2S_IT_OVR ((uint8_t)0x56) #define SPI_IT_MODF ((uint8_t)0x55) #define SPI_IT_CRCERR ((uint8_t)0x54) /* SPI_I2S_flags_definition */ #define SPI_I2S_FLAG_RXNE ((uint16_t)0x0001) #define SPI_I2S_FLAG_TXE ((uint16_t)0x0002) #define SPI_FLAG_CRCERR ((uint16_t)0x0010) #define SPI_FLAG_MODF ((uint16_t)0x0020) #define SPI_I2S_FLAG_OVR ((uint16_t)0x0040) #define SPI_I2S_FLAG_BSY ((uint16_t)0x0080) void SPI_I2S_DeInit(SPI_TypeDef *SPIx); void SPI_Init(SPI_TypeDef *SPIx, SPI_InitTypeDef *SPI_InitStruct); void SPI_StructInit(SPI_InitTypeDef *SPI_InitStruct); void SPI_Cmd(SPI_TypeDef *SPIx, FunctionalState NewState); void SPI_I2S_ITConfig(SPI_TypeDef *SPIx, uint8_t SPI_I2S_IT, FunctionalState NewState); void SPI_I2S_DMACmd(SPI_TypeDef *SPIx, uint16_t SPI_I2S_DMAReq, FunctionalState NewState); void SPI_I2S_SendData(SPI_TypeDef *SPIx, uint16_t Data); uint16_t SPI_I2S_ReceiveData(SPI_TypeDef *SPIx); void SPI_NSSInternalSoftwareConfig(SPI_TypeDef *SPIx, uint16_t SPI_NSSInternalSoft); void SPI_SSOutputCmd(SPI_TypeDef *SPIx, FunctionalState NewState); void SPI_DataSizeConfig(SPI_TypeDef *SPIx, uint16_t SPI_DataSize); void SPI_TransmitCRC(SPI_TypeDef *SPIx); void SPI_CalculateCRC(SPI_TypeDef *SPIx, FunctionalState NewState); uint16_t SPI_GetCRC(SPI_TypeDef *SPIx, uint8_t SPI_CRC); uint16_t SPI_GetCRCPolynomial(SPI_TypeDef *SPIx); void SPI_BiDirectionalLineConfig(SPI_TypeDef *SPIx, uint16_t SPI_Direction); 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