pascal

说明：  簡單的串列埠自我測試持式 測試硬體電路是否正確(Chuanlibu simple self-test with tester hardware circuit is correct)

lexical analysis of text detail program...

一组频谱分析结果，样本容量1601，即1600线。(A set of spectral analysis results, sample size 1601, 1600 line)

在stc51单片机上，timer0、timer1、timer2的控制(In the stc51 microcontroller, timer0, Timer1, timer2 control)

基于STM32F103利用SPI协议，RC522多功能读取，修改，删除卡片(Based on STM32F103 and SPI protocol, RC522 can read, modify and delete cards with multiple functions.)

音乐倒数计数，设置时间，为零后响音乐青花瓷 用红外遥控(Music countdown, setting time, infrared remote control for blue and white porcelains with zero back sound)

查询式矩阵键盘，可以用数码管显示也可以用液晶显示屏显示，我用了lcd1602显示！(Inquiry matrix keyboard, can be displayed by digital tube, can also be displayed with LCD display, I used the LCD1602 display!)

超声波测距，通过声波测出距离，并打印到串口上(Ultrasonic ranging)

三星S3C44B0X的I2C总线功能模块测试，该程序实现了的各种读写操作，硬件调试通过(Samsung S3C44B0X the I2C bus function module test, the program has a variety of read and write operations, hardware debugging through)

积分器的一种实现方法：每级积分器都是一个反馈系数为1的单极点IIR滤波器, 其传递函数为:(An implementation of an integrator: each stage integrator is a single pole IIR filter with a feedback factor of 1:)