mega16做的4*5矩阵按键程序，键值送至1602液晶显示，同时更新了proteus仿真，可在不搭建硬件平台的基础上实现调试及仿真，-mega16 do 4* 5 matrix key program, key sent to the LCD 1602, and updated the proteus simulation, you can not build a hardware platform based on the debugging and simulation,

主要是测试程序，比如LED驱动、按键驱动、LCD驱动的测试程序。(来源于嵌入式完成开发手册)-Mainly test program, such as LED drivers, key drivers, LCD driver testing procedures. (From embedded completed the development of manuals)

基于TQ2440的建议Uboot实现,包括： 核心初始化 内存初始化 mmu初始化 按键初始化 nandflash初始化 DMA初始化 LCD初始化 电阻式触摸屏驱动 网卡初始化 移植tftp客户端 移植bootm命令 对上述内容的测试程序 代码风格良好，注释详细，可用于2440平台的学习，有兴趣的可以向本人要学习所做的笔记。QQ:49042765-Based on Uboot s proposed TQ24

针对友善之臂4412开发板裸机下操作LCD显示驱动，注：Lcd的背光默认没有开启，可以通过先加载linux内核来开启背光，然后按reset键重启进入u-boot来运行自己的程序；-Note 4412: Lcd s default backlight is not turned on, you can first load the linux kernel to open the backlight, and then press the reset key to restart into the