该程序是个蜂鸣器的调试程序，歌曲是兰花草

C51写的华邦8位单片机ISP程序,请配合本人用VB写的PC端ISP程序W78E516UpdataOfVB使用

系统由AT89C51、LED 数码管、按键、发光二极管等部分构成，能实现时间的调整、定 时时间的设定，输出等功能。系统的功能选择由SB0、SB1、SB2、SB3、SB4 完成。其中SB0 -System consists of AT89C51, LED digital tube, keys, light-emitting diodes and other parts, to achieve the adjustment of the time, will be When the time set, the output functions. Function of the system choose from SB0, SB1, SB2, SB3, SB4 completed. One SB0

用普单片机实现低成本高精度A_D与D_A转换关键词 单片机 　A/D转换 　D/A转换 　PWM(脉冲宽度调制)比较器-Pu realize low-cost single-chip microcomputer with high-precision conversion A_D with D_A Key words Single-chip A/D converter D/A converter PWM (pulse width modulation) comparator

基于51系列单片机内部定时器写的一个时钟程序-51 Series single-chip based on an internal timer to write a clock procedures

基于51单片机的数字钟程序，实现了闹铃校时两个功能，用Keil C编写-SCM digital clock procedures, the alarm function of two schools, with the preparation of Keil C

89C52单片机12M晶振下DS18B20温度传感器测量温度应用子程序源码-89C52 microcontroller 12M under DS18B20 crystal temperature sensor temperature measurement applications subroutine FOSS

欧几里德算法：辗转求余　　原理: gcd(a,b)=gcd(b,a mod b)　　当b为0时,两数的最大公约数即为a　　getchar()会接受前一个scanf的回车符-Euclidean algorithm: Principles of travel for more than: gcd (a, b) = gcd (b, a mod b) when b is 0, the two common denominator is the number of a getchar () will accept the previous scanf carriage return

基于MSP430F169的TS12864-5程序 可以显示汉字，字符，以及反白显示-Based on the MSP430F169 of TS12864-5 program can display Chinese characters, characters, and anti-white display

用了不同于一般的方法做出来的矩阵键盘，效果还不错-Used methods different from the general matrix by the keyboard, the effect of good