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PLC基础及应用第2版廖常初主编 参考答案 （注未经允许禁止转载！）(PLC basic and applied 2nd Edition Liao Chang, editor suggested answers (note reproduced without permission prohibited!))

基于星研集成环境的51单片机的电子钟设计与实现，源码是用汇编语言写的，有需要的可以下载参考下，谢谢(Design and implementation of electronic bell 51 single integrated environment based on satellite research, source code is written in assembly language, there is a need to download reference, thank you)

说明：  51单片机开发，AD转换模块 ，模数转换，高精度(51 MCU development, AD converter module, analog-to-digital conversion, high-precision)

ad5306是adi公司生产4路8位的DA转换器,它采用IIC接口,操作简单,稳定性可靠 本程序为它的驱动程序 (Ad5306 is adi company in the production of 4 road 8 DA converter, it USES the IIC interface, simple operation, reliable stability of this program for its driver )

这里面是一些我们平时上实验课做的一些单片机的基本实验，应该很有帮助(That there is something we usually do some of the experimental course on the basic experimental SCM should be helpful)

说明：  IAR for stm8编译环境和配置参考模板(IAR for stm8 Compilation environment and configuration reference template)

本装置采用单相桥式DC-AC逆变电路结构，以TI公司的浮点数字信号控制器TMS320F28335 DSP为控制电路核心，采用规则采样法和DSP片内ePWM模块功能实现SPWM波。最大功率点跟踪（MPPT）采用了恒压跟踪法（CVT法）来实现，并用软件锁相环进行系统的同频、同相控制，控制灵活简单。采用DSP片内12位A/D对各模拟信号进行采集检测，简化了系统设计和成本。本装置具有良好的数字显示功能，采用CPLD自行设计驱动的4.3’’彩色液晶TFT LCD非常直观地完成了输出信号波形、频谱特性的在线实时显示，以及输入电压、电流、功率，输出电压、电流、功率，效率，频率，相位差，失真度参数的正确显示。本装置具有开机自检、输入电压欠压及输出过流保护，在过流、欠压故障排除后能自动恢复。(This device single-phase bridge type DC-AC inverter circuit structure, TI company of floating in digital signal controller TMS320F28335 DSP as the control circuit, the core rules sampling method and DSP piece ePWM module function realization within SPWM wave. The maximum power point tracking (MPPT) used the constant pressure tracking method (CVT method) to realize the software, and phase lock loop to carry on the system the same frequency, phase control, control with flexible simple. By using DSP piece of 12 within the A/D of each simulation signal acquisition detection, simplified system design and cost. This device has a good digital display function, use CPLD to design the driver 4.3 " TFT LCD color LCD very intuitive to finish the output signal waveform and spectrum characteristics of online real-time display, and the input voltage, current, power, the output voltage, current, power, efficiency, frequency, phase difference, the distortion degree of parameters display properly. Thi)

基于单片机和C语言的，步进电机加速减速匀速演示，希望方便大家(Based on SCM and C language, stepper motor acceleration and deceleration uniform presentation, I hope to facilitate)

想要读取RC522数据，不想失败了，求解(CC2530 reads RC522 data)

说明：  利用keil变成完成oled显示功能能用！！！！！！！！！！！！！(Using keil to complete OLED display function can be used)