ACM

C语言的KEY4X4的矩阵键盘,已经调试成功.可以很便移植,是本人自己写的.-C language KEY4X4 matrix keyboard, has been successful debugging. Can be transplanted, it is I wrote it myself.

实时时钟【LCD光标显示，按键调时】-.

这是基于单片机的gprs编程 希望能给予大家帮助 -This is based on the MCU programming gprs hope to help everyone

波形发生器啊 可以产生方波，锯齿波 三角波 正弦波-Ah waveform generator can produce square wave, sawtooth wave sine triangle

M12864汉字液晶显示驱动程序，完整程序经验证一定可以使用。-M12864 characters liquid crystal display driver, complete the certification process will be able to use.

G.72音频压缩传输协议-G.72 audio compression and transmission agreement

画曲线头文件,最新制作可以进行画三角波,但可修改后画正玄矩形曲线-Painting curve header files, the latest production of the triangular wave can be painted, but can be modified after the painting is mysterious rectangular curve

crc16 通用程序,可在单片机或PC上运行.-crc16 common procedures, the microcontroller or PC running.

经过一段时间的使用，上次的硬盘MP3播放器增加了USB下载文件功能； 汉字LCD显示功能；子文件夹功能等。并对软件做了一些修改。并将 硬件电路图画出来了。由于做得仓促，难免有不妥之处，请大家谅解， 欢迎指出错误。谢谢。-After a period of use, the last of the hard disk MP3 player, an increase of USB download files function characters LCD display Subfolders functions. And the software to do some modifications. Hardware circuit and the pictures came out. As a result of doing a rush, inevitably something wrong with the U.S. understanding, please welcome to point out the error.谢谢.

Samsung 2440 sample keypad example in C