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Ambarella Processor startup process

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Author: User
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The NAND boot steps:

The Sector Media boot steps:
(Sector Media devices include SD, SDHC, MMC and Movinand)

1.A2S/A2M 硬件启动程序boot-strap在片上ROM。2.boot-strapper初始化sector media devices(上电启动配置选中的设备)3.boot-strapper从sector media中读取DRAM配置，初始化DDR2控制器及DRAM设备。4.boot-strapper从sector media 的 sector1读取配置，并加载boot-loader到DRAM，最后将PC置到boot-loader。5.boot-loader初始化MMU及分页表。6.boot-loader从sector media主分区中读取 RTOS/APP raw image至DRAM，并解压的最终地址（DRAM）。7.boot-loader从sector media的DSP分区中 读取并解压 DSP微程序。8.boot-lodaer跳入 RTOS/APP 代码并完成剩余启动程序。

It is started by that storage device and is determined by the boot pin.

Ambarella Processor startup process

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