DCDC程序 (1)

AVR 单片机学习总结，以问答方式出现。希望能给朋友们一点帮助(some question answer for avr study.I hope it is helpful for your learning. )

DIYMP3，能智能播放，很好的运用了STM32系统相关知识，花费了我将近半年的努力，基本上包含了STM32所有功能的应用。(DIYMP3, play to intelligence, very good use of the STM32 system related knowledge, it took me about half effort, basically contains all STM32 function application.)

超声波测距仪设计文档，本设计主要是以74LS04和CX20106A为测距模块，DS18B20用于温度补偿，12864液晶显示，HC-SR04为超声波显示板，语音模块由音频功率放大器LM386、语音芯片WT588D、低压差电压调节LM1117组成。(Ultrasonic range finder design documents, the design is mainly based on 74LS04 and CX20106A ranging module, DS18B20 for temperature compensation, 12864 LCD, HC-SR04 ultrasonic display boards, voice module consists of audio power amplifier LM386, voice chip WT588D, LM1117 low dropout voltage regulator components.)

用51单片机模拟dds产生正弦波，方波，三角波，幅度频率可控。(Dds generated using 51 MCU simulation sine, square, triangle wave, amplitude frequency control.)

usb3.0开发板原理图,有参考价值，能跑到200M(usb3.0 development board schematics)

说明：  51单片机超声波测距C#上位机源码&PCB原理图(51 single chip ultrasonic ranging Coupper computer source code & PCB schematic)

CC2530 开发板AD实验测试Test源程序 基于iar平台(CC2530 development board based on AD test test Test source platform iar)

使用51单片机设计的相位计，并有毕业设计论文。(Use of 51 single-chip design phase meter, and a graduation thesis.)

用Matlab2012搭建的HERIC拓扑单相并网逆变器仿真模型，可以正常运行。(HERIC Single Phase Invertor Simulator Model。)

区域中央空调市场调研报告，市场调研报告模板(Regional central air-conditioning market research report, market research report template)