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2011年6月2日 星期四

Andriod 專有名詞整理

最近研究了Andriod,整理了一些專有名詞如
IPL (InitialProgramLoader):
Initialize the hardware setting, such as memory, cpu clock , flash, about the development board.
It is similar with the bootloader in the embedded system, like u-boot.

SPL (Second Program Loader):
The main goal is to load system OS to memory.
In addition, some features is provided as the below list.
(1) check hardware, like LCD, led.
(2) search the active partion and load it to memory.
(3) connection with PC and recieve commands from PC host.

HBoot:
This is  HTC’s SPL
fastboot:
Fastboot is protocol used to update the flash filesystem in Android devices from a host over USB.
The command "fastboot.exe" you can run on your host after fastboot has been started on a device connected via USB.
e.g.
$ fastboot erase boot

Andriod Recovery:
The recovey of  the mainstream andriod can provide some options to recovery your systems or factory-to-default, even
though it can load official ROM in the zip file of SD card and recovey the system.
ClockworkMod recovery is one of the widely used custom andriod recovery and it provide more options to recovery unofficial or official
ROM from the zip file of SD card.

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