#ifndef __USART_H__
#define __USART_H__

//数据位
#define USART_DATA_BIT_8    USART_WordLength_8b     //数据位8
#define USART_DATA_BIT_9    USART_WordLength_9b     //数据位9

//停止位
#define USART_STOP_BIT_1    USART_StopBits_1        //停止位1
#define USART_STOP_BIT_0_5  USART_StopBits_0_5      //停止位0.5
#define USART_STOP_BIT_2    USART_StopBits_2        //停止位2
#define USART_STOP_BIT_1_5  USART_StopBits_1_5      //停止位1.5

//校验位
#define USART_PARITY_NO     USART_Parity_No         //无校验
#define USART_PRAITY_EVEN   USART_Parity_Even       //偶校验
#define USART_PRAITY_ODD    USART_Parity_Odd        //奇校验

//USART
#define USART_ENABLE
#ifdef USART_ENABLE
    #define USE_USART1
    #undef USE_USART2
    #undef USE_USART3
    #undef USE_USART4
    #undef USE_USART5
    #undef USE_USART6
#endif

/* **********串口相关********** */
#ifdef USE_USART1
    #define COM0 USART1_BASE
    #define COM0_IRQN USART1_IRQn
    #define COM0_TX_PORT GPIOA
    #define COM0_RX_PORT GPIOA
    #define COM0_TX_PIN GPIO_Pin_9
    #define COM0_RX_PIN GPIO_Pin_10
#endif
#ifdef USE_USART2
    #define COM1 USART2_BASE
    #define COM1_IRQN USART2_IRQn
    #define COM1_TX_PORT GPIOA
    #define COM1_RX_PORT GPIOA
    #define COM1_TX_PIN GPIO_Pin_2
    #define COM1_RX_PIN GPIO_Pin_3
#endif
#ifdef USE_USART3
    #define COM2 USART3_BASE
    #define COM2_IRQN USART3_IRQn
    #define COM2_TX_PORT GPIOB
    #define COM2_RX_PORT GPIOB
    #define COM2_TX_PIN GPIO_Pin_10
    #define COM2_RX_PIN GPIO_Pin_11
#endif
#ifdef USE_USART4
    #define COM3 UART4_BASE
    #define COM3_IRQN UART4_IRQn
    #define COM3_TX_PORT GPIOC
    #define COM3_RX_PORT GPIOC
    #define COM3_TX_PIN GPIO_Pin_10
    #define COM3_RX_PIN GPIO_Pin_11
#endif
#ifdef USE_USART5
    #define COM4 UART5_BASE
    #define COM4_IRQN UART5_IRQn
    #define COM4_TX_PORT GPIOB
    #define COM4_RX_PORT GPIOD
    #define COM4_TX_PIN GPIO_Pin_12
    #define COM4_RX_PIN GPIO_Pin_2
#endif

/* LetterShell */
#define USE_SHELL
#ifdef USE_SHELL
  #define TTY_COM COM0
  #define TTY_COM_IRQN  COM0_IRQN
#endif

/* 此BSP规定最多4路RS485 */
#undef USE_RS4851
#ifdef USE_RS4851
    #define RS4851_TRANS_PORT   GPIOx
    #define RS4851_TRANS_PIN    GPIO_Pin_x
    #define RS4851_TRANS_TX     RESET
    #define RS4851_TRANS_RX     SET
#endif

#undef USE_RS4852
#ifdef USE_RS4852
    #define RS4852_TRANS_PORT   GPIOx
    #define RS4852_TRANS_PIN    GPIO_Pin_x
    #define RS4852_TRANS_TX     RESET
    #define RS4852_TRANS_RX     SET
#endif

#undef USE_RS4853
#ifdef USE_RS4853
    #define RS4853_TRANS_PORT   GPIOx
    #define RS4853_TRANS_PIN    GPIO_Pin_x
    #define RS4853_TRANS_TX     RESET
    #define RS4853_TRANS_RX     SET
#endif

#undef USE_RS4854
#ifdef USE_RS4854
    #define RS4854_TRANS_PORT   GPIOx
    #define RS4854_TRANS_PIN    GPIO_Pin_x
    #define RS4854_TRANS_TX     RESET
    #define RS4854_TRANS_RX     SET
#endif

#endif