drawing

说明：  一个自写的ClistCtrl打印类，直接引用就行(a written ClistCtrl Print category applied directly on the line)

西南交通大学图形学实验的第二个，响应键盘的系统键和非系统键(Second, the system in response to keyboard keys and key non-system experiments Southwest Jiaotong University Graphics)

单片机键盘扫描程序 微处理器课程设计 八位抢答器(SCM keyboard scanning procedures microprocessor eight Responder Course Design)

基于STM32的16位DAC8811驱动程序，亲测可用(STM32-based 16-bit DAC8811 driver, pro-test available)

仿真机床切割,可生产可编辑的轨迹代码,方便操作.(Simulated machine tool cutting, can produce editable trajectory code, easy to operate.)

数字电压表的源程序，可以实现实现测量电路的电压，精确到小数点后面三位数字。附带数字电压表的流程图(Digital voltage meter source, can be implemented to realize the voltage measurement circuit, down to the decimal point three digits.Attached flowchart of digital voltmeter)

Mitsubishi FX Keyreader to unlock FX1S,1N, 2N

通过51单片机串行转并行，扩展IO口，实现四个步进电动机的控制。(By 51 microcontroller serial to parallel IO expansion port, to achieve four stepper motor control.)

51环境的超声波程序，keil直接完美运行，需要复制到程序中(51 microcontroller ultrasound procedure can be run directly keil)

编写程序，通过8255 单元控制点阵的扫描显示，使8×8LED 点阵到小循环显示号 “□”(Programming, through the 8255 unit control the scanning dot matrix display, the 8 × 8LED dot matrix display number to small cycles " □" )