前几天的chromecast签名绕过破解)

Is it really ChromeOS?

No, it’s not. We had a lot of internal discussion on this, and have concluded that it’s more Android than ChromeOS. To be specific, it’s actually a modified Google TV release, but with all of the Bionic / Dalvik stripped out and replaced with a single binary for Chromecast. Since the Marvell DE3005 SOC running this is a single core variant of the 88DE3100, most of the Google TV code was reused. So, although it’s not going to let you install an APK or anything, its origins: the bootloader, kernel, init scripts, binaries, are all from the Google TV.

简单的说，有Android的内核，没有Bionic / Dalvik。没法装apk。Chromecast的功能是作为一大坨二进制包直接当膏药粘到一个精简版android上的。

拆解Chromecast的硬件是：

• AzureWave AW-NH387 802.11 b/g/n WLAN, Bluetooth 3.0, and FM combo module

• Marvell DE3005-A1 System-on-a-Chip。

• Micron MT29F16G08MAA 16Gb NAND Flash memory

• 512MB of low-voltage Micron D9PXV DDR3L SDRAM

SoC的资料很少，业界猜测是1.2GHz ARMv7双核，从512MB RAM 2G ROM 来看，这35刀的货就是个废品啊。还是我大MTK和Allwinner是业界良心。

另外Chromecast的镜像功能，也是用websocket发明。NIH综合征很严重。