调试蓝牙问题

蓝牙抓log方式：

修改system/bt/conf/bt_stack.conf文件，将TRC_xxx 的值都改为6,编译系统，请确保文件编译进去了。

//Logcat log 
(1)"logcat -v threadtime"(open all the BlueDroid log; use logcat -v to add timestamp) 
Change "TRC_xxx" to 6 in "/etc/bluetooth/bt_stack.conf". 

//BTsnoop log 
Please refer below steps to enable the log, after issue reproduce, upload file /mnt/sdcard/btsnoop_hci.log(/data/misc/bluetooth/logs/btsnoop_hci.log or ***.cfa file) 
Setting->Developer Options(If not this item, please Click "About phone"->Click "Version" several times)->Click "Enable Bluetooth HCIsnoop log" 
Please DO NOT close BT BEFORE you get the logs!!! 

 

生成的log解析，请参考如下博客：

https://www.jianshu.com/p/05cf5a8e8453

Frontline Protocol Analysis System下载地址，工具主界面：

 

注意抓取log的时间要同步，在设置中把时间同步的选项关闭，修改系统时间的也还原掉吧。