Google Glass 笔记

1 硬件

处理器： TI OMAP4430

内存： Elpida mobile DRAM

闪存： SanDisk 16GB

显示： Himax HX7309 LCOS（Liquid Crystal on Silicon，硅基液晶），Field Sequential Color display (FSC)，640x360，控制器有可能是 Himax HX7812，通过MIPI (DSI)与OMAP4430连接

摄像头： 500万像素

WiFi： WM-BN-BM-04-a

蓝牙： WM-BN-BM-04-a

GPS： SiRFstarIV GSD4e GPS

触摸控制器： Synaptics T1320A

陀螺和罗盘： InvenSense MPU-9150 9轴陀螺仪

加速度传感： ST LIS3

话筒： Wolfson WM7231 MEMS microphone

耳机：骨传导 (Bone Conduction Transducer)

电源管理： TI TWL6030 (6030B107)

锂电池： 2.1 Wh (570 mAh)

参考拆解： http://www.catwig.com/google-glass-teardown/

2 内核

代码位于： https://android.googlesource.com/kernel/omap.git

最早的版本为 XRR02，现在最新的版本为 XRT73B。基于 Linux Kernel 3.0.31

$ git branch -a
  android-omap-tuna-3.0
* glass-omap-xrr02
  glass-omap-xrr88
  glass-omap-xrt73b
  master
  remotes/origin/HEAD -> origin/master
  remotes/origin/android-omap-3.0
  remotes/origin/android-omap-panda-3.0
  remotes/origin/android-omap-steelhead-3.0-ics-aah
  remotes/origin/android-omap-tuna-3.0
  remotes/origin/android-omap-tuna-3.0-ics-mr1
  remotes/origin/android-omap-tuna-3.0-jb-mr0
  remotes/origin/android-omap-tuna-3.0-jb-mr1
  remotes/origin/android-omap-tuna-3.0-jb-mr1.1
  remotes/origin/android-omap-tuna-3.0-jb-mr2
  remotes/origin/android-omap-tuna-3.0-jb-pre1
  remotes/origin/android-omap-tuna-3.0-mr0
  remotes/origin/android-omap-tuna-3.0-mr0.1
  remotes/origin/glass-omap-xrr02
  remotes/origin/glass-omap-xrr35
  remotes/origin/glass-omap-xrr64b
  remotes/origin/glass-omap-xrr88
  remotes/origin/glass-omap-xrs36
  remotes/origin/glass-omap-xrs68
  remotes/origin/glass-omap-xrs92
  remotes/origin/glass-omap-xrt35
  remotes/origin/glass-omap-xrt73b
  remotes/origin/linux-omap-3.0
  remotes/origin/master
  remotes/origin/sph-l700-fh05

$ head Makefile 
VERSION = 3
PATCHLEVEL = 0
SUBLEVEL = 31
EXTRAVERSION =
NAME = Sneaky Weasel