CMS3in1/1.Cabin/4.MISC/PWM/Drivers/SYSTEM/usart/usart.c

#include "./SYSTEM/sys/sys.h"
#include "./SYSTEM/usart/usart.h"


/* <20><><EFBFBD><EFBFBD>ʹ<EFBFBD><CAB9>os,<2C><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͷ<EFBFBD>ļ<EFBFBD><C4BC><EFBFBD><EFBFBD><EFBFBD> */
#if SYS_SUPPORT_OS
#include "includes.h"                               /* os ʹ<><CAB9> */
#endif

/******************************************************************************************/
/* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>´<EFBFBD><C2B4><EFBFBD>, ֧<><D6A7>printf<74><66><EFBFBD><EFBFBD>, <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫѡ<D2AA><D1A1>use MicroLIB */

#if 1
#if (__ARMCC_VERSION >= 6010050)                    /* ʹ<><CAB9>AC6<43><36><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ */
__asm(".global __use_no_semihosting\n\t");          /* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD>ð<EFBFBD><C3B0><EFBFBD><EFBFBD><EFBFBD>ģʽ */
__asm(".global __ARM_use_no_argv \n\t");            /* AC6<43><36><EFBFBD><EFBFBD>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD>main<69><6E><EFBFBD><EFBFBD>Ϊ<EFBFBD>޲<EFBFBD><DEB2><EFBFBD><EFBFBD><EFBFBD>ʽ<EFBFBD><CABD><EFBFBD><EFBFBD><EFBFBD>򲿷<EFBFBD><F2B2BFB7><EFBFBD><EFBFBD>̿<EFBFBD><CCBF>ܳ<EFBFBD><DCB3>ְ<EFBFBD><D6B0><EFBFBD><EFBFBD><EFBFBD>ģʽ */

#else
/* ʹ<><CAB9>AC5<43><35><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ, Ҫ<><D2AA><EFBFBD><EFBFBD><EFBFBD>ﶨ<EFBFBD><EFB6A8>__FILE <20><> <20><>ʹ<EFBFBD>ð<EFBFBD><C3B0><EFBFBD><EFBFBD><EFBFBD>ģʽ */
#pragma import(__use_no_semihosting)

struct __FILE
{
    int handle;
    /* Whatever you require here. If the only file you are using is */
    /* standard output using printf() for debugging, no file handling */
    /* is required. */
};

#endif

/* <20><>ʹ<EFBFBD>ð<EFBFBD><C3B0><EFBFBD><EFBFBD><EFBFBD>ģʽ<C4A3><CABD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD>ض<EFBFBD><D8B6><EFBFBD>_ttywrch\_sys_exit\_sys_command_string<6E><67><EFBFBD><EFBFBD>,<2C><>ͬʱ<CDAC><CAB1><EFBFBD><EFBFBD>AC6<43><36>AC5ģʽ */
int _ttywrch(int ch)
{
    ch = ch;
    return ch;
}

/* <20><><EFBFBD><EFBFBD>_sys_exit()<29>Ա<EFBFBD><D4B1><EFBFBD>ʹ<EFBFBD>ð<EFBFBD><C3B0><EFBFBD><EFBFBD><EFBFBD>ģʽ */
void _sys_exit(int x)
{
    x = x;
}

char *_sys_command_string(char *cmd, int len)
{
    return NULL;
}

/* FILE <20><> stdio.h<><68><EFBFBD>涨<EFBFBD><E6B6A8>. */
FILE __stdout;

/* <20>ض<EFBFBD><D8B6><EFBFBD>fputc<74><63><EFBFBD><EFBFBD>, printf<74><66><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ջ<EFBFBD>ͨ<EFBFBD><CDA8><EFBFBD><EFBFBD><EFBFBD><EFBFBD>fputc<74><63><EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> */
int fputc(int ch, FILE *f)
{
    while ((USART3->SR & 0X40) == 0);               /* <20>ȴ<EFBFBD><C8B4><EFBFBD>һ<EFBFBD><D2BB><EFBFBD>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> */

    USART3->DR = (uint8_t)ch;                       /* <20><>Ҫ<EFBFBD><D2AA><EFBFBD>͵<EFBFBD><CDB5>ַ<EFBFBD> ch д<>뵽DR<44>Ĵ<EFBFBD><C4B4><EFBFBD> */
    return ch;
}
#endif
/***********************************************END*******************************************/
    
#if USART_EN_RX                                     /* <20><><EFBFBD><EFBFBD>ʹ<EFBFBD><CAB9><EFBFBD>˽<EFBFBD><CBBD><EFBFBD> */

/* <20><><EFBFBD>ջ<EFBFBD><D5BB><EFBFBD>, <20><><EFBFBD><EFBFBD>USART_REC_LEN<45><4E><EFBFBD>ֽ<EFBFBD>. */
uint8_t g_usart_rx_buf[USART_REC_LEN];

/*  <20><><EFBFBD><EFBFBD>״̬
 *  bit15<EFBFBD><EFBFBD>      <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɱ<EFBFBD>־
 *  bit14<EFBFBD><EFBFBD>      <EFBFBD><EFBFBD><EFBFBD>յ<EFBFBD>0x0d
 *  bit13~0<EFBFBD><EFBFBD>    <EFBFBD><EFBFBD><EFBFBD>յ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ч<EFBFBD>ֽ<EFBFBD><EFBFBD><EFBFBD>Ŀ
*/
uint16_t g_usart_rx_sta = 0;

uint8_t g_rx_buffer[RXBUFFERSIZE];                  /* HAL<41><4C>ʹ<EFBFBD>õĴ<C3B5><C4B4>ڽ<EFBFBD><DABD>ջ<EFBFBD><D5BB><EFBFBD> */

UART_HandleTypeDef g_uart1_handle;                  /* UART<52><54><EFBFBD><EFBFBD> */


/**
 * @brief       <EFBFBD><EFBFBD><EFBFBD><EFBFBD>X<EFBFBD><EFBFBD>ʼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 * @param       baudrate: <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>, <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Լ<EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD>ò<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ
 * @note        ע<EFBFBD><EFBFBD>: <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȷ<EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD>Դ, <EFBFBD><EFBFBD><EFBFBD>򴮿ڲ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʾͻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>쳣.
 *              <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>USART<EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD>Դ<EFBFBD><EFBFBD>sys_stm32_clock_init()<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ѿ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ù<EFBFBD><EFBFBD><EFBFBD>.
 * @retval      <EFBFBD><EFBFBD>
 */
void usart_init(uint32_t baudrate)
{
    g_uart1_handle.Instance = USART_UX;                         /* USART1 */
    g_uart1_handle.Init.BaudRate = baudrate;                    /* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> */
    g_uart1_handle.Init.WordLength = UART_WORDLENGTH_8B;        /* <20>ֳ<EFBFBD>Ϊ8λ<38><CEBB><EFBFBD>ݸ<EFBFBD>ʽ */
    g_uart1_handle.Init.StopBits = UART_STOPBITS_1;             /* һ<><D2BB>ֹͣλ */
    g_uart1_handle.Init.Parity = UART_PARITY_NONE;              /* <20><><EFBFBD><EFBFBD>żУ<C5BC><D0A3>λ */
    g_uart1_handle.Init.HwFlowCtl = UART_HWCONTROL_NONE;        /* <20><>Ӳ<EFBFBD><D3B2><EFBFBD><EFBFBD><EFBFBD><EFBFBD> */
    g_uart1_handle.Init.Mode = UART_MODE_TX_RX;                 /* <20>շ<EFBFBD>ģʽ */
    HAL_UART_Init(&g_uart1_handle);                             /* HAL_UART_Init()<29><>ʹ<EFBFBD><CAB9>UART1 */
    
    /* <20>ú<EFBFBD><C3BA><EFBFBD><EFBFBD>Ὺ<EFBFBD><E1BFAA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>жϣ<D0B6><CFA3><EFBFBD>־λUART_IT_RXNE<4E><45><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ý<EFBFBD><C3BD>ջ<EFBFBD><D5BB><EFBFBD><EFBFBD>Լ<EFBFBD><D4BC><EFBFBD><EFBFBD>ջ<EFBFBD><D5BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> */
    HAL_UART_Receive_IT(&g_uart1_handle, (uint8_t *)g_rx_buffer, RXBUFFERSIZE);
}

/**
 * @brief       UART<EFBFBD>ײ<EFBFBD><EFBFBD><EFBFBD>ʼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 * @param       huart: UART<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><EFBFBD>
 * @note        <EFBFBD>˺<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ᱻHAL_UART_Init()<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 *              <EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD>ʹ<EFBFBD>ܣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ã<EFBFBD><EFBFBD>ж<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 * @retval      <EFBFBD><EFBFBD>
 */
void HAL_UART_MspInit(UART_HandleTypeDef *huart)
{
    GPIO_InitTypeDef gpio_init_struct;
    if(huart->Instance == USART_UX)                             /* <20><><EFBFBD><EFBFBD><EFBFBD>Ǵ<EFBFBD><C7B4><EFBFBD>1<EFBFBD><31><EFBFBD><EFBFBD><EFBFBD>д<EFBFBD><D0B4><EFBFBD>1 MSP<53><50>ʼ<EFBFBD><CABC> */
    {
        USART_UX_CLK_ENABLE();                                  /* USART1 ʱ<><CAB1>ʹ<EFBFBD><CAB9> */
        USART_TX_GPIO_CLK_ENABLE();                             /* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1>ʹ<EFBFBD><CAB9> */
        USART_RX_GPIO_CLK_ENABLE();                             /* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1>ʹ<EFBFBD><CAB9> */

        gpio_init_struct.Pin = USART_TX_GPIO_PIN;               /* TX<54><58><EFBFBD><EFBFBD> */
        gpio_init_struct.Mode = GPIO_MODE_AF_PP;                /* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> */
        gpio_init_struct.Pull = GPIO_PULLUP;                    /* <20><><EFBFBD><EFBFBD> */
        gpio_init_struct.Speed = GPIO_SPEED_FREQ_HIGH;          /* <20><><EFBFBD><EFBFBD> */
        gpio_init_struct.Alternate = USART_TX_GPIO_AF;          /* <20><><EFBFBD><EFBFBD>ΪUSART1 */
        HAL_GPIO_Init(USART_TX_GPIO_PORT, &gpio_init_struct);   /* <20><>ʼ<EFBFBD><CABC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> */

        gpio_init_struct.Pin = USART_RX_GPIO_PIN;               /* RX<52><58><EFBFBD><EFBFBD> */
        gpio_init_struct.Alternate = USART_RX_GPIO_AF;          /* <20><><EFBFBD><EFBFBD>ΪUSART1 */
        HAL_GPIO_Init(USART_RX_GPIO_PORT, &gpio_init_struct);   /* <20><>ʼ<EFBFBD><CABC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> */

#if USART_EN_RX
        HAL_NVIC_EnableIRQ(USART_UX_IRQn);                      /* ʹ<><CAB9>USART1<54>ж<EFBFBD>ͨ<EFBFBD><CDA8> */
        HAL_NVIC_SetPriority(USART_UX_IRQn, 3, 3);              /* <20><>ռ<EFBFBD><D5BC><EFBFBD>ȼ<EFBFBD>3<EFBFBD><33><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȼ<EFBFBD>3 */
#endif
    }
}

/**
 * @brief       Rx<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ص<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 * @param       huart: UART<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><EFBFBD>
 * @retval      <EFBFBD><EFBFBD>
 */
void HAL_UART_RxCpltCallback(UART_HandleTypeDef *huart)
{
    if(huart->Instance == USART_UX)             /* <20><><EFBFBD><EFBFBD><EFBFBD>Ǵ<EFBFBD><C7B4><EFBFBD>1 */
    {
        if((g_usart_rx_sta & 0x8000) == 0)      /* <20><><EFBFBD><EFBFBD>δ<EFBFBD><CEB4><EFBFBD><EFBFBD> */
        {
            if(g_usart_rx_sta & 0x4000)         /* <20><><EFBFBD>յ<EFBFBD><D5B5><EFBFBD>0x0d */
            {
                if(g_rx_buffer[0] != 0x0a) 
                {
                    g_usart_rx_sta = 0;         /* <20><><EFBFBD>մ<EFBFBD><D5B4><EFBFBD>,<2C><><EFBFBD>¿<EFBFBD>ʼ */
                }
                else 
                {
                    g_usart_rx_sta |= 0x8000;   /* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> */
                }
            }
            else                                /* <20><>û<EFBFBD>յ<EFBFBD>0X0D */
            {
                if(g_rx_buffer[0] == 0x0d)
                {
                    g_usart_rx_sta |= 0x4000;
                }
                else
                {
                    g_usart_rx_buf[g_usart_rx_sta & 0X3FFF] = g_rx_buffer[0] ;
                    g_usart_rx_sta++;
                    if(g_usart_rx_sta > (USART_REC_LEN - 1))
                    {
                        g_usart_rx_sta = 0;     /* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݴ<EFBFBD><DDB4><EFBFBD>,<2C><><EFBFBD>¿<EFBFBD>ʼ<EFBFBD><CABC><EFBFBD><EFBFBD> */
                    }
                }
            }
        }
    }
}

/**
 * @brief       <EFBFBD><EFBFBD><EFBFBD><EFBFBD>1<EFBFBD>жϷ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 * @param       <EFBFBD><EFBFBD>
 * @retval      <EFBFBD><EFBFBD>
 */
void USART_UX_IRQHandler(void)
{ 
    uint32_t timeout = 0;
    uint32_t maxDelay = 0x1FFFF;
    
#if SYS_SUPPORT_OS                              /* ʹ<><CAB9>OS */
    OSIntEnter();    
#endif

    HAL_UART_IRQHandler(&g_uart1_handle);       /* <20><><EFBFBD><EFBFBD>HAL<41><4C><EFBFBD>жϴ<D0B6><CFB4><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ú<EFBFBD><C3BA><EFBFBD> */

    timeout = 0;
    while (HAL_UART_GetState(&g_uart1_handle) != HAL_UART_STATE_READY) /* <20>ȴ<EFBFBD><C8B4><EFBFBD><EFBFBD><EFBFBD> */
    {
        timeout++;                              /* <20><>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD> */
        if(timeout > maxDelay)
        {
            break;
        }
    }
     
    timeout=0;
    
    /* һ<>δ<EFBFBD><CEB4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>֮<EFBFBD><D6AE><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>¿<EFBFBD><C2BF><EFBFBD><EFBFBD>жϲ<D0B6><CFB2><EFBFBD><EFBFBD><EFBFBD>RxXferCountΪ1 */
    while (HAL_UART_Receive_IT(&g_uart1_handle, (uint8_t *)g_rx_buffer, RXBUFFERSIZE) != HAL_OK)
    {
        timeout++;                              /* <20><>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD> */
        if (timeout > maxDelay)
        {
            break;
        }
    }

#if SYS_SUPPORT_OS                              /* ʹ<><CAB9>OS */
    OSIntExit();
#endif

}

#endif