开关稳压电源 开关稳压电源

电子秒表的设计 1、用系统8253定时器提供的55ms定时单位，设计秒表定时程序。 2、有关系统定时方法： PC机系统中的8253定时器0工作于方式3，外部提供一个时钟作为CLK信号, 频率：f=1.1931816MHz。 定时器0输出方波的频率:fout=1.1931816/65536=18.2Hz。 输出方波的周期Tout=1/18.2=54.945ms。8253A每隔55ms引起一次中断-Electronic stopwatch design one, using the system timer 8253 provides 55ms timing units, design stopwatch timing procedures. 2, the system timing method: PC system timer 0 of 8253 working in the way of 3, to provide an external clock as the CLK signal, the frequency: f = 1.1931816MHz. Timer 0 output square wave frequency: fout = 1.1931816/65536 = 18.2Hz. Cycle square wave output Tout = 1/18.2 = 54.945ms. 8253A every 55ms caused a disruption

通用的基于51单片机控制IDE硬盘，可能无FAT文件系统-generic microcontroller-based control 51 IDE hard disk may not FAT File System

采用80C51单片机为控制核心，利用超声波传感器检测道路上的障碍，控制电动小汽车的自动避障，快慢速行驶，以及自动停车，并可以自动记录时间、里程和速度，自动寻迹和寻光功能。整个系统的电路结构简单，可靠性能高。 采用的技术主要有： 通过编程来控制小车的速度； 传感器的有效应用； 新型显示芯片的采用.-80C51 single-chip microcomputer used for the control of the core, the use of ultrasonic sensors detect obstacles on the road, control of electric cars automatic obstacle avoidance, fast low traffic speeds, as well as the automatic parking, and can automatically record time, mileage and speed, automatic track finding and searching optical function. Circuit the whole system of simple structure, high reliability. The technologies used are: programmed to control the speed of car the effective application of the sensor new display chip used.

详细介绍了MC-51单片机的硬件结构、指令系统、各种硬件接口设计、各种常用的数据运算和处理程序-Details of MC-51 single-chip hardware structures, command systems, a variety of hardware interface design, a variety of commonly used data computing and processing

通讯误码仪测试软件-communications software error Test

crcmodula 进行 校验，在通信无线行业用的比较多-crcmodula to check, in communication with the wireless industry

用AVR单片机实现串口通讯功能-with AVR MCU serial communications functions

单片机用作通用红外遥控接收器的设计 PWM调制开关电源的研究 以电子电力学为核心 以整流技术为主-generic microcontroller for infrared remote control receiver design PWM switching power supply of electronic learning for power to the core technology-based rectifier

在keil c51 编译器下实现AD0832转换c源代码！

本系统是一个设计较完善的家用全数字功率放大器。它采用了美国APOGEE公司最新的DDX直接数字放大技术，音质直逼高档模拟放大器，同时，为了扩大使用范围，系统进一步集成了模拟音频输入通道，便于没有数字音频信号的用户使用该系统。操作方面采用了大型的128*64点阵液晶显示模块和非常方便易用的旋转编码器，同时更具有遥控功能。软件方面，以Atmega16单片机核心，采用了全中文菜单显示，由旋转编码器和遥控器作为输入设备，旋转编码器和遥控器均可实现全功能的操作。-This system is a better designed home all-digital power amplifier. It uses the U.S. APOGEE" s latest DDX Direct Digital Amplification technology, sound quality almost equal to high-end analog amplifiers at the same time, in order to expand the scope of application, the system further integrates the analog audio input channels, there is no digital audio signals to facilitate users of the system. Operational use of a large 128* 64 dot matrix LCD display module and very easy to use rotary encoder, but also has a remote control function. Software, in order to Atmega16 microcontroller core, which features a full Chinese menu display by the rotary encoder and remote control as input device, rotary encoders and remote controls can achieve a fully functional operati