1
    # 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糩ͨ
	setenv serverip 192.168.1.70;setenv ipaddr 192.168.1.234;setenv netmask 255.255.255.0;setenv gatewayip 192.168.1.1
2дӳļSPI Flash
    32M SPI FlashΪ
    1ַռ˵
        |  320K |  64K |     64K     |      64K     |    3584K     |     3584K     |    19520K   |   5M     |   384K   |  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 42000000 ff 50000;tftp 0x42000000 uboot_V160705;sf probe 0; sf erase 0 50000;sf write 42000000 0 50000
       (/ͼƬȫΪ0xff,ubootͼƬǷ)
        mw.b 42000000 ff 10000;sf probe 0;sf erase 60000 10000;sf write 42000000 60000 10000 
        mw.b 42000000 ff 10000;sf probe 0;sf erase 70000 10000;sf write 42000000 70000 10000 
	 
	  2-2)¼logo  UB_LOGO_BIT
		mw.b 42000000 ff 10000;tftp 42000000 720P.jpg;sf probe 0;sf erase 60000 10000;sf write 42000000 60000 10000
	  2-3)¼logo
		mw.b 42000000 ff 10000;tftp 42000000 start_logo.jpg;sf probe 0;sf erase 70000 10000;sf write 42000000 70000 10000
    3дں  UB_KERNEL_BIT
        mw.b 42000000 ff 380000;tftp 42000000 kernel_V160219;sf probe 0;sf erase 80000 380000;sf write 42000000 80000 380000
    4)дļϵͳ  UB_ROOTFS_BIT
        mw.b 42000000 ff 380000;tftp 0x42000000 rootfs_V160517;sf probe 0;sf erase 400000 380000;sf write 42000000 400000 380000
	5)дapp  UB_APP_BIT
		mw.b 42000000 ff 1310000;tftp 0x42000000 app_V160705_N5216_M;sf probe 0;sf erase 780000 1310000;sf write 42000000 780000 1310000
	6)дWWW  UB_WWW_BIT
		mw.b 42000000 ff 500000;tftp 0x42000000 www_V160704;sf probe 0;sf erase 1a90000 500000;sf write 42000000 1a90000 500000	
    7  UB_ENVAR_BIT
        setenv bootargs 'mem=210M console=ttyAMA0,115200 root=/dev/mtdblock2 rootfstype=squashfs mtdparts=hi_sfc:512K(boot),3584K(kernel),3584K(rootfs),19520K(app),5M(www),384K(para),64K(p2p)';
        setenv bootcmd 'sf probe 0;sf read 0x42000000 0x80000 0x380000;bootm 0x42000000';sa;
    8) UB_PARACLR_BIT
		sf probe 0;sf erase 1f90000 60000(ע˲Ҫkeyidboardid)
