数控直流电源，步进０．１，０－１５Ｖ掉电存储

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

8816发烧级芯片,请大家放心下载 -8816 fever-on-chip, please rest assured that everyone download

用PIC单片机PIC16F877A带键盘设置的秒计时器-Sec timer.Sec timer.Sec timer

单片机，C51实现的音乐代码,可在主函数中插入使用-fasdfdfgggs

sja1000两点通信实验，从程序即可看出硬件连接-SJA1000 two communications experiment, the procedure can be seen from the hardware connection

NRF24l01无线232通信 程序代码 C51 接收-NRF24l01

protel快捷键.提高protel布线速度的好资料-Protel shortcuts. Protel Cabling improve the speed of a good information

详细讲述10种经典的软件滤波算法，很通用。适合初学者。-A detailed account of the 10 kinds of classic software filtering algorithm, it is common. Suitable for beginners.

使用51实现的高速电流下降沿记录，-use to achieve the high-speed current descending records,

MPLAB IDE环境下软仿真基础教程。-MPLAB IDE environment, simulation-based software tutorials.