U盘模拟,把带有flash的如开发板，数码相机等整个模拟成一个U盘,U disk simulation, to a development board, such as flash, digital cameras and so on throughout the simulation as a U disk

JZ47xx的数码相框方案，LINUX系统，使用UCGUI,jz47xx Digital Photo Frame sdk， run on linux， use ucgui

机顶盒卡通讯代码，主要工作是读取卡内的基本信息，如卡号、运营商等信息，在智能卡 Reset 后必须首先执行，之后才可以执行其他的命令 -Communications set-top box card code, the main task is to read the card' s basic information, such as card numbers, operators and other information, after Reset in a smart card mu