Test_ifnonnull

蓄电池的充放电控制，能够有效的进行控制，高效稳定(Battery charge and discharge control)

说明：  IAR 工程，使用标准库，减少建立工程实践，IAR版本8.xxx(IAR Project use std periph)

说明：  电力载波 具备显示 控制 采集 用于毕业设计 工厂测试(Power carrier with display control acquisition for graduation design factory test)

说明：  对串行FLASH的读写操作编程，以SST公司的sst39vf400为例进行说明(Reading and writing to serial FLASH programming operation to SST)

MPU 6050 51单片机测试程序，包含串口通讯和1602显示屏显示(MPU 6050 51 SCM test procedures, including serial communications and display 1602)

USB鼠标的设计资料之二：原理图。PDF和DSN格式(USB mouse design data 2: Schematic diagram. PDF and DSN format)

多级菜单通过1284显示！并由矩阵键盘控制(Multi-level menu through 1284 show! By Matrix keyboard control)

STM32神舟1号通过ili9320驱动LCD液晶显示屏显示一个A实验(STM32 Shenzhou 1 shows a A experiment through ILI9320 driving LCD LCD screen.)

六路炉温检测系统，含有技术报告，原理图、pcb，系统源程序，上位机源程序。(Her temperature detection system, contain a technical report, schematic and PCB, system source code, source program of the host computer is designed.)

一个很实用的Listctrl，可以加图标（连Header都可以加图标），可以单Item的编辑，有下拉框，可以改变底色和文字颜色(A very practical Listctrl, can be added icon (with Header icon can be added), can single-Item editor, has drop-down box, you can change the background color and text color)