使用汇编语言的89C2051LED显示程序源码

电子秒表的设计 1、用系统8253定时器提供的55ms定时单位，设计秒表定时程序。 2、有关系统定时方法： PC机系统中的8253定时器0工作于方式3，外部提供一个时钟作为CLK信号, 频率：f=1.1931816MHz。 定时器0输出方波的频率:fout=1.1931816/65536=18.2Hz。 输出方波的周期Tout=1/18.2=54.945ms。8253A每隔55ms引起一次中断-Electronic stopwatch design one, using the system timer 8253 provides 55ms timing units, design stopwatch timing procedures. 2, the system timing method: PC system timer 0 of 8253 working in the way of 3, to provide an external clock as the CLK signal, the frequency: f = 1.1931816MHz. Timer 0 output square wave frequency: fout = 1.1931816/65536 = 18.2Hz. Cycle square wave output Tout = 1/18.2 = 54.945ms. 8253A every 55ms caused a disruption

凌阳公司SPCE061A精简开发板附带光盘简易教程，总共分为八章。-Sunplus SPCE061A companies to streamline development board attached to Layman

绕线机计数功能，可调节。用光电开关和AD-AD

采用步进电机模拟洗衣机电机，实现上水、浸泡、洗涤、漂洗、甩干等过程。洗涤分弱洗、轻洗、强洗；可设定3级水位设定，每级水位均设定水位下限（值自定）；可选择漂洗次数（3~5次）。使用键盘进行流程及参数设定及自动存储流程，设定暂停键，可暂时停止洗衣机的工作，恢复后按原设定程序继续进行，同时设定停止键，可终止洗衣机的工作，并在LED或LCD上显示当前流程。-Simulation using stepper motors washing machine motor to achieve Sheung Shui, soaking, washing, rinsing, drying and other processes. Washing sub-weak wash, light wash, strong wash can be set to three water level settings, set the water level in each grade level were lower (the value of self-set) optional rinsing times (3 ~ 5 times). Using the keyboard processes and parameter settings and automatic memory processes, set pause button to temporarily suspend the work of washing machines and restore original settings after the process to continue at the same time set the stop button, may terminate the work of washing machines, and LED or the LCD displays the current process.

Proteus 仿真库 Proteus 仿真库 - 仿真库Proteus 仿真库

at89c51单片机

成熟电磁炉原理图，可以全面了解电磁炉工作原理及设计细节-Mature induction cooker schematic, you can fully understand the working principle and design details of the Induction Cooker

亲测：基于51单片机的八路抢答器，与其他同类源码比，功能强大，有查询，设置，抢答，答题等所有实用功能。-Pro-test: Based on 51 single-chip eight-way of the Answer, and with other source than the powerful, a query, settings, Answer, answer all practical function.

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嵌入式C编程技术一本单片机电子书-Embedded C programming a microcontroller electronic books