OSAL-AT指令

static uint8 str_cmp(uint8 *p1,uint8 *p2,uint8 len)
{
    uint8 i = 0;
    while(i<len)
    {
        if (p1[i]!= p2[i])
        {
            return 0;
        }
        i++;
    }
    return 1;
}
//HalLedSet( m_led, HAL_LED_MODE_ON );
bool simple_ble_at_cmd_handle(uint8 *p_buffer,uint16 len)
{
    bool ret = TRUE;
    char str_temp[64];

    if (4==len && strstr((char const *)p_buffer,"AT\r\n"))//if (4==len && str_cmp(p_buffer,"AT\r\n",4))
    {
        sprintf(str_temp,"OK\r\n");
        NPI_WriteTransport((uint8*)str_temp,strlen(str_temp));
    }
    else if (9==len && strstr((char const *)p_buffer,"AT+LED"))//else if (9==len && str_cmp(p_buffer,"AT+LED",6))
    {
        /*
        Para: 0 ~ 1
        AT+LED0\r\n: 关灯
        AT+LED1\r\n: 开灯
        Default: 0
        */
        switch(p_buffer[6])
        {
        case '?':
            sprintf(str_temp,"OK+Get:%d\r\n",P1_0);
            NPI_WriteTransport((uint8*)str_temp,strlen(str_temp));
            break;
        case '0':
            P1_0=0;
            HalLedSet(HAL_LED_1,HAL_LED_MODE_OFF);
            sprintf(str_temp,"OK+Set:%d\r\n",P1_0);
            NPI_WriteTransport((uint8*)str_temp,strlen(str_temp));
            break;
        case '1':
            P1_0=1;
            HalLedSet(HAL_LED_1,HAL_LED_MODE_ON);
            sprintf(str_temp,"OK+Set:%d\r\n",P1_0);
            NPI_WriteTransport((uint8*)str_temp,strlen(str_temp));
            break;
        default:
            ret = FALSE;
            break;
        }
    } else
    {
        sprintf(str_temp,"ERROR\r\n");
        NPI_WriteTransport((uint8*)str_temp,strlen(str_temp));
        ret = FALSE;
    }
    return ret;
}


static void  npi_serial_call_back(uint8_t port,uint8_t events)
{
    (void)port;

    static uint32 old_time=0;//老时间
    static uint32 old_time_data_len=0;
    uint32 new_time;
    uint8 read_max_bytes = 20;

    if (events & (HAL_UART_RX_TIMEOUT | HAL_UART_RX_FULL))
    {
        uint8_t num_bytes=0;
        num_bytes = NPI_RxBufLen();
        if ( 0 == num_bytes )
        {
            old_time_data_len=0;
            return;
        }
        if (old_time_data_len == 0)
        {
            old_time = osal_GetSystemClock();
            old_time_data_len = num_bytes;
        } else
        {
            new_time = osal_GetSystemClock();
            if ( num_bytes>=read_max_bytes || (new_time-old_time)>20)
            {
                uint8 send_bytes=0;
                uint8 *buffer = osal_mem_alloc(num_bytes);
                if (num_bytes > read_max_bytes)
                {
                    send_bytes = read_max_bytes;
                } else
                {
                    send_bytes = num_bytes;
                }
                if (buffer)
                {
                   //读取读取串口缓冲区数据，释放串口数据   
                    NPI_ReadTransport(buffer,num_bytes);   
                    simple_ble_at_cmd_handle(buffer,send_bytes);
                    osal_mem_free(buffer);
                }
                old_time = new_time;
                old_time_data_len = num_bytes - send_bytes;
            }
        }
    }
}

测试效果;

image.png