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使用中，有需要用到自己定义广播字节内容，比如MAC地址，一定意义的字节等，这里以simple为示例，介绍广播MAC地址的方法 1）打开app. c文件，找到 appm_build_adv_data 函数 2）修改函数内容 static void appm_build_adv_data(uint16_t max_length, uint16_t *p_length, uint8_t *p_buf) { // Remaining Length uint8_t rem_len = max_length; uint8_t manufa[8] = {0}; // Get mac nvds_tag_len_t temp_len = 6; uint8_t addr_temp[6] = {0}; nvds_get(NVDS_TAG_BD_ADDRESS, &temp_len, addr_temp); // Manufacturer Specific Data manufa[0] = sizeof(manufa) - 1; manufa[1] = APP_ADV_DATATYPE_MANUFACTURER_SPECIFIC_DATA; manufa[2] = addr_temp[0]; // MAC地址0 manufa[3] = addr_temp[1]; // MAC地址1 manufa[4] = addr_temp[2]; // MAC地址2 manufa[5] = addr_temp[3]; // MAC地址3 manufa[6] = addr_temp[4]; // MAC地址4 manufa[7] = addr_temp[5]; // MAC地址5 // Set Manufacturer memcpy(p_buf, manufa, sizeof(manufa)); *p_length += sizeof(manufa); p_buf += sizeof(manufa); // Set list of UUIDs memcpy(p_buf, APP_ADV_DATA_UUID, APP_ADV_DATA_UUID_LEN); *p_length += APP_ADV_DATA_UUID_LEN; p_buf += APP_ADV_DATA_UUID_LEN; // Sanity check ASSERT_ERR(rem_len >= max_length); // Get remaining space in the Advertising Data - 2 bytes are used for name length/flag rem_len -= *p_length; // Check if additional data can be added to the Advertising data - 2 bytes needed for type and length if (rem_len > 2) { uint8_t dev_name_length = co_min(app_env.dev_name_len, (rem_len - 2)); // Device name length *p_buf = dev_name_length + 1; // Device name flag (check if device name is complete or not) *(p_buf + 1) = '\x09'; // Copy device name memcpy(p_buf + 2, app_env.dev_name, dev_name_length); // Update advertising data length *p_length += (dev_name_length + 2); } } 3）因常用的广播字节不能超过31字节，所以自定义数组不能过大，示例定义的是8个字节（6个自定义字节） 4)nrf 测试如下：
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