一、实验任务 利用开发系统编制程序，产生三角波、锯齿波、正弦波 二、程序编制要求 分别产生三种波形，并能通过按键调节输出频率 三、改变频率的方法...

stm32实现精确定时源代码，经过验证，可实现-stm32 accurate source code from time to time, after verification, can be realized

128*64点 LCD及DS1302 应用-128* 64 points, LCD and DS1302 Application

基于51单片机的U盘型MP3设计（含C语言程序，原理图）-51 MCU-based U-disk-based MP3 design (including C language program, schematic diagram)

这是一个pid 程序，完成PID的计算和控制过程-This is a process pid to complete the calculation and control process PID

该文件包含声控开关的详细电路图和PcB布板图，供大家参考。-The document contains a detailed voice switches and circuit diagram PcB cloth map, for your reference.

秒表程序-Stopwatch program

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

大容量FLASH存储器29C040的C51读写程序 -large-capacity flash memory reader 29C040 the procedures C51

ch375读写u盘C51示例源程序....利用芯片×75做U盘-ch375 disk read and write u .... C51 sample source ⊙ 75 chips make use of U disk

前一阵子做了个IC卡读写程序，可以读写SLE4442系统逻辑加密卡的，本来想在网上找一个，没找到，自己写了一个，为了让后来人可以轻松一点，所以就奉献给大家：） 注释比较少（本人的坏习惯），看起来有点累，不过建议你在自己看之前先熟悉一下SLE4442的协议。 程序是经过测试的，在我的931上工作的很好，有什么问题，发信给我 Ploto_zhu@etang.com-done a while ago, IC card reader procedures, can read and write SLE4442 encryption system logic card, and they would like to find an on-line, could not find himself writing a view to the later can easily point and so on devoted to you :) Notes relatively small (my bad habits), looks a bit tired, but I suggest you look at before their first study SLE4442 agreement. Procedures are tested, in my 931 on the good work and what problems, I wrote to Ploto_zhu@etang.com