https://v.qq.com/x/page/v0841n0i1ku.html BLE蓝牙讲解视频教程
https://v.qq.com/x/page/a0831qh7zs0.html BLE mesh设备应用场景
http://www.iqiyi.com/w_19s6yzin0h.html BLE协议各层的形象化理解
https://v.qq.com/x/page/x0517o4r4mg.html
BLE智能手环项目（七） 实现手环
http://www.iqiyi.com/w_19s8b7u66x.html BLE协议各层数据格式概述
https://v.qq.com/x/page/q0854ez7k5e.html
BLE协议抓包演示
BLE开发例子 https://tv.sohu.com/v/dXMvMzAxMzYxNzM0Lzg1NjU4NjA3LnNodG1s.html
客户反馈蓝牙BLE连接app不能播放音频的反馈
05_BT201双模蓝牙音频模块_BLE数据透功能测试演示
https://v.qq.com/x/page/o0766ubm78n.html 相关应用ble
usb转ttl，
http://www.mamicode.com/info-detail-2275982.html 连接
https://www.bluetooth.com/specifications/bluetooth-core-specification/ core-spec的标准
https://www.bluetooth.com/specifications/archived-specifications/ 所有的spec
https://www.bluetooth.com/specifications/gatt/ gatt的spec
https://www.bluetooth.com/specifications/qualification-test-requirements/ pts测试的流程
https://blog.csdn.net/z497544849/article/details/53930211 BLE中resolving list
https://gitee.com/shenzhen_bo_core/BK3431Q_3435_SDK_public 博通的ble芯片例子
advertising parameters
不同过程的参数：
adv_param 广播数据
conn_param 连接数据
appm_update_param(&up_param); 更新连接参数
struct gapm_scan_param
struct gapm_conn_param
struct gapm_adv_param
struct gapm_adv_create_param
union gapm_u_param
appm_start_advertising() 函数改写
appm_stop_advertising(void)
appm_disconnect(void)
appm_create_advertising(void)
appm_update_param(struct gapc_conn_param *conn_param)