一个简单的利用查表法的反正切和正、余弦函数，在处理速度不快的单片机编程中，这是一个使用的方法。...

晶闸管直流电动机调速系统的开环调速仿真模型。-SCR DC motor speed control system simulation model of open-loop speed control.

16位单片机对AD9854控制的实现，主要用于凌阳16位单片机

该源码是基于atmel公司的89C51SND1C的mp3解决方案，支持三星和东芝的NAND flash 上的fat12，fat16和fat32文件系统。-the source is based on the ATMEL 89C51SND1C mp3 solution that supports Samsung and Toshiba"s NAND flash on the FAT12, fat16 and fat32 file system.

实现多个数字滚动，移位显示，当按下某个按键时，会将对应于端口的数值送入低位数码管显示-To achieve more than the number of rolling, shift display

1.8个流水灯先会从上到下流动一遍，同时蜂鸣器发声。 2.接着DAC电流指示灯由暗变亮 3.接着前三位数码管显示温度值 4.接着AD数值显示在数码管的前三位-1.8 water flows from top to bottom lights will be again, at the same time audible buzzer. 2. And then the current DAC become bright light from the dark 3. And then the top three digital temperature display 4. Then AD numerical display of the top three in the digital control

DS18B20芯片的温度转换子程序精度为0.5-Temperature Conversion Subroutine

usbio的上位机动态连接文件，Ver 2.41-PC usbio the dynamic link file, Ver 2.41

这是我大学同学今年的毕业设计项目：基于USB的红外鼠标。红外遥控器模拟鼠标的左右键，还有滚动条。红外接收用HS0038A接收，在这设计中红外处理部分用一块51单片机处理。USB信号处理部分（即USB设备）用51单片机和PDIUSBD12芯片构成-This is my university students graduating this year" s design project: Based on the infrared USB mouse. Infrared remote control analog left and right mouse button, as well as scroll bar. Infrared receiver with HS0038A receive, in the design of mid-infrared processing section 51 with a microcontroller processing. USB signal processing part (ie, USB devices) with 51-chip microcontroller and PDIUSBD12 composition

这是一个本人编写的程序，单片机89C52，主要是通过计量芯片ATT7028测量输入端的电压电流及电压电流间的各个夹角值，比较有用-This is the one I prepared procedures, 89C52 microcontroller, mainly through measuring chip ATT7028 measuring the input voltage and current, voltage and the current value of various angles, more useful

实现控制数码管，主要用到的开发芯片为c51单片机-Realize the control of digital control is mainly used to develop chips for the C51 single-chip microcomputer