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辅助数字电路课程学习，说明TTL电路中驱动电流之间的 关系。 (auxiliary digital circuit courses on TTL circuit-drive current relationship.)

说明：  ns中一个模拟仿真的全部工程，包括协议的添加 以及仿真结果的分析方法(ns of a simulation of all the works, including the agreement to add, as well as simulation results of the analysis method)

跑马灯设计，主要是利用51单片机完成跑马灯的设计(Marquee design)

ds18b20 iButton 用户使用手册(the iButton® Book of Standards (DS18B20))

单片机MC9S08AW60脉宽调制 TPM1CH3 LS2亮度控制 KBI SEG控制亮度等级 。本工程为定时器输出PWM波测试工程实例通过对PWM占空比的调节,实现小灯的渐亮的功能,当占空比为100％时再从0％逐渐增加.PWM的周期一定要足够的快,否则其输出电压的波动范围很大,且测不出一个稳定的电压值,这样通过就观察不到小灯渐亮效果. 另外,在改变PWM的周期和占空比之前和之后要分别禁止和使用。(MC9S08AW60 pulse width modulation TPM1CH3 LS2 brightness control KBI SEG brightness level. This project is an example of testing the output PWM wave of the timer. By adjusting the duty ratio of the PWM, the function of the small lamp gradually brightening is realized. When the duty ratio is 100%, the period of the small lamp gradually increases from 0%. The period of the PWM must be fast enough. Otherwise, the fluctuation range of the output voltage is large and a stable voltage value can not be measured, so the effect of the gradual brightening of the small lamp can not be observed. In addition, the period of the PWM is changed. Before and after duty cycle should be prohibited and used separately.)

放大仪表很好用的，关于AD采样，温度压力信号放大用(Good instrument used to enlarge, on the AD sampling, temperature and pressure signal amplification)

原创程序，用于智能筛选计算气象站数据（如气温、太阳辐射、风速、湿度等）的年、月、日、时均值，数据缺失能自动报错。(A program that can compute the mean value of meteorological data.)

本程序可以读取电离层IONEX数据，可以运行，程序流畅简洁，清楚易懂!!(The program can read the ionosphere IONEX data, you can run the program smoothly simple, clear and understandable!!)

按键控制LED灯的汇编程序，可实现按键控制LED灯的亮灭，主要是用汇编语言写的可以学习汇编(Button control keys to control LED lights LED lights LED light button control keys to control LED lights)

keil软件开发，基于89c52单片机的pwm控制直流电机，通过4*4按键设置pwm值，并且在1620上显示出pwm的值。(Keil software development, 89C52 MCU PWM control of DC motor based on PWM by setting 4*4 key values, and in the 1620 shows the value of pwm. )