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目录
  • 一、准备工作
  • 二、编译 BLE UART Server代码
  • 三、编译 BLE UART Client代码
  • 四、测试

BLE串口透传测试

该教程演示如何通过两块开发板实现BLE数据传输测试，A开发板通过串口接收数据，然后通过BLE传输给B开发板，B开发板通过串口将接收到的数据打印出来；同样，B开发板通过串口接收数据，然后通过BLE传输给A开发板，A开发板通过串口将接收到的数据打印出来。在测试中需要一块开发板做为Server端，另外一块开发板做为Client端，两块开发板配对后就可以互发消息了。

一、准备工作

  • 准备2块BearPi-Pico H3863开发板

二、编译 BLE UART Server代码

在Windows下编译操作

  1. 点击工具栏中的“系统配置”,打开配置界面.

    Alt text

  2. 选择Enable BLE UART Server sample

    Application  --->
    [*] Enable Sample.
    [ ]     Enable the Sample of peripheral.
    [*]     Enable the Sample of products.
    [ ]         Enable all the sample of product, it's just for build.
    [*]         Support BLE UART sample.
                    BLE UART Sample Configuration  --->
                        Select ble uart type (Enable BLE UART Server sample.)  --->
                                (X) Enable BLE UART Server sample.
                                ( ) Enable BLE UART Client sample.
    [ ]         Support SLE UART sample.

    Alt textAlt text

  3. 按下"Save"键保存配置。

    Alt text

  4. 关键代码，位于application\samples\products\ble_uart\ble_uart.c

    static void *ble_uart_server_task(const char *arg)
{
    unused(arg);
    ble_uart_server_init();                                                     //初始化服务端
    errcode_t ret = uapi_uart_register_rx_callback(CONFIG_BLE_UART_BUS,         //注册uart中断回调 
                                                UART_RX_CONDITION_FULL_OR_SUFFICIENT_DATA_OR_IDLE,
                                                1, ble_uart_read_int_handler);
    if (ret != ERRCODE_SUCC) {
        osal_printk("Register uart callback fail.");
        return NULL;
    }
    while (1) {
        msg_data_t msg_data = { 0 };
        int msg_ret = osal_msg_queue_read_copy(mouse_msg_queue, &msg_data, &msg_rev_size, OSAL_WAIT_FOREVER);
        if (msg_ret != OSAL_SUCCESS) {
            osal_printk("msg queue read copy fail.");
            if (msg_data.value != NULL) {
                osal_vfree(msg_data.value);
            }
            continue;
        }
        if (msg_data.value != NULL) {
            ble_uart_server_send_input_report(msg_data.value, msg_data.value_len);  //向客户端发送数据
            osal_vfree(msg_data.value);
        }
    }
    return NULL;
}

  5. 编译烧录固件

    参考环境搭建教程编译烧录代码

三、编译 BLE UART Client代码

在Windows下编译操作

  1. 点击工具栏中的“系统配置”,打开配置界面.

    Alt text

  2. 选择Enable BLE UART Client sample

    Application  --->
    [*] Enable Sample.
    [ ]     Enable the Sample of peripheral.
    [*]     Enable the Sample of products.
    [ ]         Enable all the sample of product, it's just for build.
    [*]         Support BLE UART sample.
                    BLE UART Sample Configuration  --->
                        Select ble uart type (Enable BLE UART Server sample.)  --->
                                ( ) Enable BLE UART Server sample.
                                (X) Enable BLE UART Client sample.
    [ ]         Support SLE UART sample.

    Alt textAlt text

  3. 按下"Save"键保存配置。

    Alt text

  4. 关键代码，位于application\samples\products\ble_uart\ble_uart.c

    static void *ble_uart_client_task(const char *arg)
{
    unused(arg);
    osal_printk("ble_uart_client_task entry.");
    ble_uart_client_init();                                                 //初始化BLE客户端
    errcode_t ret = uapi_uart_register_rx_callback(CONFIG_BLE_UART_BUS,     //注册uart中断回调
                                                UART_RX_CONDITION_FULL_OR_SUFFICIENT_DATA_OR_IDLE,
                                                1, ble_uart_read_int_handler);
    if (ret != ERRCODE_SUCC) {
        osal_printk("Register uart callback fail.");
        return NULL;
    }
    while (1) {
        msg_data_t msg_data = { 0 };
        int msg_ret = osal_msg_queue_read_copy(mouse_msg_queue, &msg_data, &msg_rev_size, OSAL_WAIT_FOREVER);
        if (msg_ret != OSAL_SUCCESS) {
            osal_printk("msg queue read copy fail.");
            if (msg_data.value != NULL) {
                osal_vfree(msg_data.value);
            }
            continue;
        }
        if (msg_data.value != NULL) {
            uint16_t write_handle = ble_uart_get_write_vlaue_handle();
            ble_uart_client_write_cmd(msg_data.value, msg_data.value_len, write_handle);//向服务端发送数据
            osal_vfree(msg_data.value);
        }
    }
    return NULL;
}

  5. 编译烧录固件

    参考环境搭建教程编译烧录代码

四、测试

烧录固件后先启动server设备,再启动client设备，在串口工具的输入框中输入数据并发送，测试server和client设备之间的数据收发，如下图所示。

Alt text