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...

51单片机浮点子程序库(中),直接嵌入,方便使用.-51 single-chip floating-point subroutine library (middle), directly embedded, user-friendly.

C51串口输出输入函数-C51 serial input-output function

PIC单片机C语言学习－教程-PIC C language learning-Guide

sub子程序 即可调用本文件中的子程序 DISP 子程序名：显示子程序DISP-sub subroutine

AVR mage8单片机的bootload程序、完整版本、本人做项目一下在用、此程序为16m晶振版本、非常好用-MCU AVR mage8 Bootload procedures, full version, I do projects like the use of this procedure for the 16m crystal version, very easy to use

AD9852的单音频产生波形程序 加载失时钟是内部设置的 -AD9852 single audio waveform procedures produce an internal clock to load default settings

该例程是利用MC9S12DG128中TC0和TC7通道共同完成模拟PWM功能的实例。-The routine is the use of MC9S12DG128 the TC0 and TC7 simulated co-channel PWM function instance.

此程序是有关红外的程序 mcu用啊他89c52 采用外部中断0接一体化红外接受头038 （就是影碟机上拆得的） P0 P2接数码管 P0数据 P2位选 能显示遥控器的系统码及其反码 数据及其反码 （共8位） 实际调试成功 工作稳定 测试红外发光二极管的方法 用2v电源 接红外发光二极管 在摄像头下能看到淡紫偏白的光-This procedure is related to the procedure infrared mcu ah him with 89c52 using external interrupt 0 then the integration of infrared to accept the first 038 (that is player on the demolition of a) P0 P2 then P2 digital tube P0 data bit selection can display the remote control system code and its anti-code data and the anti-code (a total of eight) the actual success of the work of debugging and stability testing of the method of infrared light-emitting diodes with 2v power then infrared light-emitting diode in the camera can see under the white light side lilacinus

单片机通过SPI读写SD卡.使用5v系统操作3.3V的sd卡.很有借鉴价值-SCM SPI literacy through SD cards. 5v use of the system 3.3V sd card. Very valuable reference

用于PIC的AD转换和用HD7279A的显示（公阴极的8段数码管）-PIC for the AD converter, and the use of HD7279A display (public cathode of the eight digital tube)