bootloader 分析
DESCRIPTION
BootLoader 分析. 蔡維庭 4970E028 陳典杰 4970E055 康有成 4970E004. bootLoader 的作用(一般 PC ). - PowerPoint PPT PresentationTRANSCRIPT
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BootLoader 4970E0284970E0554970E004
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bootLoader PCPC BIOS MBR OS Boot Loader BIOS MBR Boot Loader RAM OS Boot LoaderBoot Loader RAM
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bootLoader ()123
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bootLoader boot Loader CPU BootLoader CPU 1 2 C
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Boot Loader 1 Boot Loader RAM 2 C
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Boot Loader 2(memory map) kernel Flash RAM
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GPIO GPIO LEDOK ErrorLEDUART Boot Loader Logo CPU clock
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bootLoader RAM sp C sp RAM()sp led 2
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sp2 C Boot Loader 2 ARM PC
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2 C Boot Loader 2 ARM PC
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Boot Loader 2 2 C C Boot Loader glibc main()2
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I/O
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4GB RAM CPU RAMCPU RAM CPU RAM RAM bootloader map __bsetup parts[]PXA27X SRAM SDRAM
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bootloader 0x00000000_0x00040000256KSDRAM 0xA1E00000
kernel 0x00040000_0x001800001.25MSDRAM 0xA0008000
root 0x00180000_0x0200000030.5MSDRAM 0xA0000000
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(MEM_START0x8000)1MB (Linux 1MB)MEM_START MEM_START0x8000 32KBLinuxMEM_START+0x00100000 Ramdisk 1MB
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RAM LinuxLinux Linux2.4.x (tagged list)ATAG_CORE ATAG_NONE tag_header
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Boot Loader Linux MEM_START0x8000
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CPU R00R1IDR2RAM
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CPU IRQs FIQsCPU SVC
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Cache MMU MMU Cache Cache