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    # ϵu-bootserveriptftpipipaddripethaddrMACַ
    setenv serverip  192.168.1.50
    setenv ipaddr    192.168.1.100
    setenv ethaddr   00:10:85:18:40:91
    setenv netmask   255.255.255.0
    setenv gatewayip 192.168.1.1
    ping serveripȷ糩ͨ

2дӳļSPI Flash
    32M SPI FlashΪ
    1ַռ˵
        |  256K |  64K |     64K     |      64K     |      3M      |     6656K     |    16768K   |  5632K   |   128K   |  64K   |
        |-------|------|-------------|--------------|--------------|---------------|-------------|----------|----------|--------|
        |  boot | para |  start_logo | upgrade_logo |    kernel    |     rootfs    |      app    |   www    |   para   |   P2P  |

        µĲͼʾĵַռ䣬ҲԸʵе
   2дu-bootͿlogologo
	 2-1)¼u-boot UB_BOOT_BIT
        sf probe 0; mw.b 82000000 ff 40000;tftp 0x82000000 u-boot-hi3531_930MHz.bin;sf probe 0; sf erase 0 40000;sf write 82000000 0 40000
       (/ͼƬȫΪ0xff,ubootͼƬǷ)
        mw.b 82000000 ff 10000;sf probe 0;sf erase 50000 10000;sf write 82000000 50000 10000 
        mw.b 82000000 ff 10000;sf probe 0;sf erase 60000 10000;sf write 82000000 60000 10000 
	 
	  2-2)¼logo UB_LOGO_BIT
		mw.b 82000000 ff 10000;tftp 82000000 start_logo.jpg;sf probe 0;sf erase 50000 10000;sf write 82000000 50000 10000
	  2-3)¼logo
		mw.b 82000000 ff 10000;tftp 82000000 upgrade_logo.jpg;sf probe 0;sf erase 60000 10000;sf write 82000000 60000 10000
    3дں UB_KERNEL_BIT
        mw.b 82000000 ff 300000;tftp 82000000 uImage;sf probe 0;sf erase 70000 300000;sf write 82000000 70000 300000
    4)дļϵͳ UB_ROOTFS_BIT
        mw.b 82000000 ff 680000;tftp 0x82000000 rootfs.squashfs;sf probe 0;sf erase 370000 680000;sf write 82000000 370000 680000
	5)дapp UB_APP_BIT
		mw.b 82000000 ff 1060000;tftp 0x82000000 app_V150920_DVR9908NR_M;sf probe 0;sf erase 9f0000 1060000;sf write 82000000 9f0000 1060000
	6)дWWW UB_WWW_BIT
		mw.b 82000000 ff 580000;tftp 0x82000000 www_V131106;sf probe 0;sf erase 1a50000 580000;sf write 82000000 1a50000 580000	
    7 UB_ENVAR_BIT
        setenv bootargs 'mem=200M console=ttyAMA0,115200 root=/dev/mtdblock2 rootfstype=squashfs mtdparts=hi_sfc:448K(boot),3M(kernel),6656K(rootfs),16768K(app),5632K(www),128K(para),64K(p2p)';
        setenv bootcmd 'sf probe 0;sf read 0x82000000 0x70000 0x300000;bootm 0x82000000';sa;
    8) UB_PARACLR_BIT
		sf probe 0;sf erase 1fd0000 20000(ע˲Ҫkeyidboardid)