/********************************** (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.
* Attention: This software (modified or not) and binary are used for 
* microcontroller manufactured by Nanjing Qinheng Microelectronics.
*******************************************************************************/
#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 







