Flyback_UC3842

avr ATmega128 PWM输出OCR1A=0x40 //OC1A 输出 25 占空比 OCR1B=0x80 //OC1B 输出 50 占空比 OCR1C=0xc0 //OC1C 输出 75 占空比(avr ATmega128 PWM)

说明：  汽车测功机源肛码.单片机用的是LPC2104. 实现测速,对涡流机的控制,马达的控制.(Automotive Dynamometer anal source code. Singlechip using LPC2104. The realization of guns on the eddy current machine control, motor control.)

本系统以直流电流源为核心，AT89S52单片机为主控制器，通过键盘来设置直流电源的输出电流，设置步进等级可达1mA，并可由数码管显示实际输出电流值和电流设定值。本系统由单片机程控输出数字信号，经过D/A转换器（AD7543）输出模拟量，再经过运算放大器隔离放大，控制输出功率管的基极，随着功率管基极电压的变化而输出不同的电流。单片机系统还兼顾对恒流源进行实时监控，输出电流经过电流/电压转变后，通过A/D转换芯片，实时把模拟量转化为数据量，再经单片机分析处理， 通过数据形式的反馈环节，使电流更加稳定，这样构成稳定的压控电流源。实际测试结果表明，本系统输出电流稳定，不随负载和环境温度变化，并具有很高的精度，输出电流误差范围±5mA，输出电流可在20mA~2000mA范围内任意设定，因而可实际应用于需要高稳定度小功率恒流源的领域。(the system to DC current source to the core, MCU AT89S52 main controller, through the keyboard to set up DC power supply output current, set up to 1mA Stepping grades, digital control can be shown by the actual output current value and current setting. The system consists of programmable microcontroller digital signal output, after the D/A converters (AD7543) analog output. After Operational Amplifiers isolation, amplification and control of the output power base. With the power of the base voltage changes in the output current. SCM system also takes on the constant current source for real-time monitoring, after current output current/voltage changes, the A/D converter chip, real-time conversion from analog to the volume of data and then analyzed by the MCU, through data link in the )

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用51实现超声波测距，在1602上显示，测量精准，并且有详细的注释(With 51 to achieve ultrasonic ranging, displayed on 1602, accurate measurement, and detailed notes)

51单片机控制的仓库测温系统。主机为单片机，从机为分布在现场的单片机，DS18B20测温，1602显示，并通过485总线通信。(51 temperature measurement system with microprocessor controlled warehouse. Host microcontroller, the slave is distributed in the field of single-chip, DS18B20 temperature measurement, 1602, and through the 485 bus communication.)

这是有关led方面的书籍，我也是在网上收集的，希望有用的多多留意(This led books, I am also in the online collection, and I hope useful for a lot of attention)

自绘的滑块控件。显示进度等信息。。汽车仪表(Since the painting of the slider control. Display progress and other information. . Auto Meter)

说明：  自己画的开发板，用的STM32F103VGT6芯片，代码中使用了很多功能，基本的I2C，SPI，Flash读取，串口通信（WIFI，Enocean协议），等都有涉及，驱动代码不全是自己写的，所以有些地方没去在意备注，但是每个使用修改的地方都有我自己的备注，基本上就是自己的开发板，自己在研究学习验证的过程中一点一点整合起来的(I drew my own development board and used stm32f103vgt6 chip. Many functions were used in the code, such as basic I2C, SPI, flash reading, serial communication (WiFi, enocean protocol), and so on. The driver code was not written by myself, so some places didn't pay attention to the remarks, but every place I used and modified had my own remarks, which was basically my own development board In the process of research, learning and verification, I integrated them bit by bit)

诺基亚5110LCD&PCD8544IC编程，包括Datasheet、驱动程序例子和应用等等。(Nokia 5110 LCD & PCD8544IC programming, including Datasheet, driver examples and application and so on.)