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Line 265: − + − + − **If the NAND is successfully initialized:+ − ***the ARM9 bootrom loads the [[FIRM|firmware]] stored in the NAND [[FIRM]] partition which handles booting the rest of the system (if verification for NAND firm0 fails, the ARM9 bootrom will attempt to use firm1 instead). − ***The ARM11 kernel loaded from FIRM then launches the [[NCCH#CXI|CXI]] ARM11 system modules loaded from FIRM (i.e. sm, fs, pm, loader, and pxi). (Note that the ARM11 kernel does not handle any encryption/RSA verification, this is handled by the [[FIRM|ARM9]].) − **If the NAND cannot be initialized (i.e. the NAND chip is not connected/damaged/etc), a [[Bootloader#Error_Codes|blue error screen]] appears. − − * 3 seconds - all essential hardware is active. − − +
→Boot Procedure
* 0 seconds - unit is powered on. The ARM9 and ARM11 [[Memory_layout|bootroms]] begin execution.
* 0 seconds - unit is powered on. The ARM9 and ARM11 [[Memory_layout|bootroms]] begin execution.
* <= ~1 second - BootROMs fully run, load FIRM, etc. The loaded FIRM begins running.
* 2 seconds - ARM9 bootrom attempts to initialize the NAND.
**The ARM11 sysmodules included with FIRM are launched by ARM11-kernel, etc.
**The [[Process_Manager_Services|PM]] module launches [[NS]].
**The [[Process_Manager_Services|PM]] module launches [[NS]]
**If [[Home_Menu#Auto-Boot_Function|auto-booting]] is needed, NS will [[NS#Auto-boot|auto-boot]] titles.
**If [[Home_Menu#Auto-Boot_Function|auto-booting]] is needed, NS will [[NS#Auto-boot|auto-boot]] titles.
**Otherwise, NS will instead launch [[ErrDisp]] and the [[Configuration Memory#ACTIVEMENUTID|current active menu]] via the PM module. For retail units, this menu is usually the [[Home Menu]]. Note that the PM module first launches the module dependencies when launching a process, prior to actually launching the process.
**Otherwise, NS will instead launch [[ErrDisp]] and the [[Configuration Memory#ACTIVEMENUTID|current active menu]] via the PM module. For retail units, this menu is usually the [[Home Menu]]. Note that the PM module first launches the module dependencies when launching a process, prior to actually launching the process.
**The further Home Menu startup process is described [[Home_Menu#Home_Menu_startup|here]].
**The further Home Menu startup process is described [[Home_Menu#Home_Menu_startup|here]]. This includes Home Menu manually launching various sysmodules.
* 4 seconds - the LCD screens are initialized.
* 4 seconds - the LCD screens are initialized.