Test_shl_int_2addr

基于STM32F103的西门子S7-200系列PPI通讯开发参考(Reference for development of SIEMENS S7-200 series PPI communication based on STM32F103)

光伏微网逆变器设计手册，从光伏板特性分析到DCDC反激升压再到DCAC逆变最后到锁相环检测并网都详细说明。(PV micro-inverter design manual, from the characteristics of photovoltaic panels to boost DCDC flyback DCAC inverter then finally to the phase-locked loop detection and network are described in detail.)

说明：  基于stc15的电子密码锁设计，带原理图(Design of electronic password lock based on stc15 with schematic diagram)

输入一个数字，数码管可倒计时显示数字，显示到0后又重新显示(Enter a number, digital countdown display digital display to 0 and then redisplay)

Vt源码修改的调试器, 想要学习过保护可以用来借鉴..( Vt source code to modify the debugger, you can protect)

说明：  基于STC单片机开发的贪吃蛇游戏，使用一块12864液晶作显示。(a retro snake game program base in STC mcu, 12864 LCD display.)

说明：  ministm32综合实验程序，包括9项功能，时钟，闹钟，记事本，画图等(ministm32comprehensive experimental program, including 9 functions, clock, alarm clock, notepad, drawing, etc.)

ATK-HC05蓝牙串口模块的使用，实现蓝牙串口通信(Using ATK-HC05 Bluetooth Serial Port Module to Realize Bluetooth Serial Port Communication)

能够完成板球题目，2017年全国大学生电子设计大赛国赛题，具体内容详见文件(can analyse the movement of the ball on the platform.)

说明：  msp产生spwm波程序，通过对PWM的产生方波，然后spwm技术生成正弦波(The program of generating SPWM wave by MSP)