Datasheet > AN2748

AN2748

更新时间： 2022-11-29 07:24:15

品牌	Logo	应用领域
其他 - ETC		/
页数	文件大小	规格书
40页	885K
描述
Genesi Pegasos II Kernel and NFS Facility

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数据手册

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AN2748 数据手册

General Theory

— TFTP server

— NFS Portmap server

— DHCP server

— Minicom, a serial console emulator

— Target root file system

Hardware requirements

•

— Large hard drive (40GB+)

— Lots of RAM (256MB+)

— Fast processor, e.g. MPC744x at 1GHz+

— Fast or GigE network interface

The target, on the other hand, has the following characteristics

•

Evaluation/engineering sample boards

Little initial software

Serial and/or network console

and the following requirements

•

Firmware/BootROM (such as DINK32 or U-boot)

— Download capability: TFTP client

— Serial console

— Execute a user program

— Pass platform information to the OS

Hardware

•

— Ethernet interface

— Serial port

— RAM

— No hard drive

Figure 3., “Putting It All Together”, shows how all the parts interact.

PPC Target

Board(s)

/opt/ppc_82xx

/opt/ppc_74xx

Host

Hard Drive

NFS

Root

NFS

Root

Exports

Network

NFS Mount

File

System

Figure 3. Putting It All Together

The target will mount the NFS root file system with an NFS mount command. The host will export the NFS root file

systems to the target boards, each board has its own NFS root file system, shown here we have two targets, and two

Genesi Pegasos II Kernel and NFS Facility, Rev. 0

Freescale Semiconductor

1...4 5 678 9 10...40

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