/********************************** (C) COPYRIGHT ******************************* * File Name : ch32v30x_usart.h * Author : WCH * Version : V1.0.0 * Date : 2021/06/06 * Description : This file contains all the functions prototypes for the * USART firmware library. * Copyright (c) 2021 Nanjing Qinheng Microelectronics Co., Ltd. * SPDX-License-Identifier: Apache-2.0 *******************************************************************************/ #ifndef __CH32V30x_USART_H #define __CH32V30x_USART_H #ifdef __cplusplus extern "C" { #endif #include "ch32v30x.h" /* USART Init Structure definition */ typedef struct { uint32_t USART_BaudRate; /* This member configures the USART communication baud rate. The baud rate is computed using the following formula: - IntegerDivider = ((PCLKx) / (16 * (USART_InitStruct->USART_BaudRate))) - FractionalDivider = ((IntegerDivider - ((u32) IntegerDivider)) * 16) + 0.5 */ uint16_t USART_WordLength; /* Specifies the number of data bits transmitted or received in a frame. This parameter can be a value of @ref USART_Word_Length */ uint16_t USART_StopBits; /* Specifies the number of stop bits transmitted. This parameter can be a value of @ref USART_Stop_Bits */ uint16_t USART_Parity; /* Specifies the parity mode. This parameter can be a value of @ref USART_Parity @note When parity is enabled, the computed parity is inserted at the MSB position of the transmitted data (9th bit when the word length is set to 9 data bits; 8th bit when the word length is set to 8 data bits). */ uint16_t USART_Mode; /* Specifies wether the Receive or Transmit mode is enabled or disabled. This parameter can be a value of @ref USART_Mode */ uint16_t USART_HardwareFlowControl; /* Specifies wether the hardware flow control mode is enabled or disabled. This parameter can be a value of @ref USART_Hardware_Flow_Control */ } USART_InitTypeDef; /* USART Clock Init Structure definition */ typedef struct { uint16_t USART_Clock; /* Specifies whether the USART clock is enabled or disabled. This parameter can be a value of @ref USART_Clock */ uint16_t USART_CPOL; /* Specifies the steady state value of the serial clock. This parameter can be a value of @ref USART_Clock_Polarity */ uint16_t USART_CPHA; /* Specifies the clock transition on which the bit capture is made. This parameter can be a value of @ref USART_Clock_Phase */ uint16_t USART_LastBit; /* Specifies whether the clock pulse corresponding to the last transmitted data bit (MSB) has to be output on the SCLK pin in synchronous mode. This parameter can be a value of @ref USART_Last_Bit */ } USART_ClockInitTypeDef; /* USART_Word_Length */ #define USART_WordLength_8b ((uint16_t)0x0000) #define USART_WordLength_9b ((uint16_t)0x1000) /* USART_Stop_Bits */ #define USART_StopBits_1 ((uint16_t)0x0000) #define USART_StopBits_0_5 ((uint16_t)0x1000) #define USART_StopBits_2 ((uint16_t)0x2000) #define USART_StopBits_1_5 ((uint16_t)0x3000) /* USART_Parity */ #define USART_Parity_No ((uint16_t)0x0000) #define USART_Parity_Even ((uint16_t)0x0400) #define USART_Parity_Odd ((uint16_t)0x0600) /* USART_Mode */ #define USART_Mode_Rx ((uint16_t)0x0004) #define USART_Mode_Tx ((uint16_t)0x0008) /* USART_Hardware_Flow_Control */ #define USART_HardwareFlowControl_None ((uint16_t)0x0000) #define USART_HardwareFlowControl_RTS ((uint16_t)0x0100) #define USART_HardwareFlowControl_CTS ((uint16_t)0x0200) #define USART_HardwareFlowControl_RTS_CTS ((uint16_t)0x0300) /* USART_Clock */ #define USART_Clock_Disable ((uint16_t)0x0000) #define USART_Clock_Enable ((uint16_t)0x0800) /* USART_Clock_Polarity */ #define USART_CPOL_Low ((uint16_t)0x0000) #define USART_CPOL_High ((uint16_t)0x0400) /* USART_Clock_Phase */ #define USART_CPHA_1Edge ((uint16_t)0x0000) #define USART_CPHA_2Edge ((uint16_t)0x0200) /* USART_Last_Bit */ #define USART_LastBit_Disable ((uint16_t)0x0000) #define USART_LastBit_Enable ((uint16_t)0x0100) /* USART_Interrupt_definition */ #define USART_IT_PE ((uint16_t)0x0028) #define USART_IT_TXE ((uint16_t)0x0727) #define USART_IT_TC ((uint16_t)0x0626) #define USART_IT_RXNE ((uint16_t)0x0525) #define USART_IT_ORE_RX ((uint16_t)0x0325) #define USART_IT_IDLE ((uint16_t)0x0424) #define USART_IT_LBD ((uint16_t)0x0846) #define USART_IT_CTS ((uint16_t)0x096A) #define USART_IT_ERR ((uint16_t)0x0060) #define USART_IT_ORE_ER ((uint16_t)0x0360) #define USART_IT_NE ((uint16_t)0x0260) #define USART_IT_FE ((uint16_t)0x0160) #define USART_IT_ORE USART_IT_ORE_ER /* USART_DMA_Requests */ #define USART_DMAReq_Tx ((uint16_t)0x0080) #define USART_DMAReq_Rx ((uint16_t)0x0040) /* USART_WakeUp_methods */ #define USART_WakeUp_IdleLine ((uint16_t)0x0000) #define USART_WakeUp_AddressMark ((uint16_t)0x0800) /* USART_LIN_Break_Detection_Length */ #define USART_LINBreakDetectLength_10b ((uint16_t)0x0000) #define USART_LINBreakDetectLength_11b ((uint16_t)0x0020) /* USART_IrDA_Low_Power */ #define USART_IrDAMode_LowPower ((uint16_t)0x0004) #define USART_IrDAMode_Normal ((uint16_t)0x0000) /* USART_Flags */ #define USART_FLAG_CTS ((uint16_t)0x0200) #define USART_FLAG_LBD ((uint16_t)0x0100) #define USART_FLAG_TXE ((uint16_t)0x0080) #define USART_FLAG_TC ((uint16_t)0x0040) #define USART_FLAG_RXNE ((uint16_t)0x0020) #define USART_FLAG_IDLE ((uint16_t)0x0010) #define USART_FLAG_ORE ((uint16_t)0x0008) #define USART_FLAG_NE ((uint16_t)0x0004) #define USART_FLAG_FE ((uint16_t)0x0002) #define USART_FLAG_PE ((uint16_t)0x0001) void USART_DeInit(USART_TypeDef* USARTx); void USART_Init(USART_TypeDef* USARTx, USART_InitTypeDef* USART_InitStruct); void USART_StructInit(USART_InitTypeDef* USART_InitStruct); void USART_ClockInit(USART_TypeDef* USARTx, USART_ClockInitTypeDef* USART_ClockInitStruct); void USART_ClockStructInit(USART_ClockInitTypeDef* USART_ClockInitStruct); void USART_Cmd(USART_TypeDef* USARTx, FunctionalState NewState); void USART_ITConfig(USART_TypeDef* USARTx, uint16_t USART_IT, FunctionalState NewState); void USART_DMACmd(USART_TypeDef* USARTx, uint16_t USART_DMAReq, FunctionalState NewState); void USART_SetAddress(USART_TypeDef* USARTx, uint8_t USART_Address); void USART_WakeUpConfig(USART_TypeDef* USARTx, uint16_t USART_WakeUp); void USART_ReceiverWakeUpCmd(USART_TypeDef* USARTx, FunctionalState NewState); void USART_LINBreakDetectLengthConfig(USART_TypeDef* USARTx, uint16_t USART_LINBreakDetectLength); void USART_LINCmd(USART_TypeDef* USARTx, FunctionalState NewState); void USART_SendData(USART_TypeDef* USARTx, uint16_t Data); uint16_t USART_ReceiveData(USART_TypeDef* USARTx); void USART_SendBreak(USART_TypeDef* USARTx); void USART_SetGuardTime(USART_TypeDef* USARTx, uint8_t USART_GuardTime); void USART_SetPrescaler(USART_TypeDef* USARTx, uint8_t USART_Prescaler); void USART_SmartCardCmd(USART_TypeDef* USARTx, FunctionalState NewState); void USART_SmartCardNACKCmd(USART_TypeDef* USARTx, FunctionalState NewState); void USART_HalfDuplexCmd(USART_TypeDef* USARTx, FunctionalState NewState); void USART_OverSampling8Cmd(USART_TypeDef* USARTx, FunctionalState NewState); void USART_OneBitMethodCmd(USART_TypeDef* USARTx, FunctionalState NewState); void USART_IrDAConfig(USART_TypeDef* USARTx, uint16_t USART_IrDAMode); void USART_IrDACmd(USART_TypeDef* USARTx, FunctionalState NewState); FlagStatus USART_GetFlagStatus(USART_TypeDef* USARTx, uint16_t USART_FLAG); void USART_ClearFlag(USART_TypeDef* USARTx, uint16_t USART_FLAG); ITStatus USART_GetITStatus(USART_TypeDef* USARTx, uint16_t USART_IT); void USART_ClearITPendingBit(USART_TypeDef* USARTx, uint16_t USART_IT); #ifdef __cplusplus } #endif #endif