实现多种单片机相互通信中的从机部分，单片机互相控制

pcf8563是一种实时的日历时钟芯片，它解决了计时的千年问题。-pcf8563 a real-time clock chip calendar, it has resolved a time of the Millennium problems.

440BX开发板 USB pd12通信测试程序-440BX Development Board USB pd12 communications test procedures

一个北京青云科技液晶显示器资料，送给学习液晶的同志们。-Beijing Qingyun a liquid crystal display science and technology information to the study of liquid crystal comrades.

以SPCE061A单片机为核心，通过DDS合成技术设计制作了一个步进值能任意调节的多功能信号源。该信号源在1KHz～10MHz范围能输出稳定可调的正弦波，并具有AM、FM、ASK和PSK等调制功能。信号输出部分采用低损耗电流反馈型宽带运放作电压放大，很好地解决了带宽和带负载能力的要求。系统带中文显示和键盘控制功能，操作简便，实现效果良好。-SPCE061A can preview and so on 片 Lennon为， Center Services Toru DDS magnetic rude summarized chirpy术instance, a few leftover制brazing stamp festival值vehicles Qin Kui 任 comment slander people cavity features信ulcers ulcers信Tai Tai 。 clams Now 1KHz `10MHz Kui Yu围HUAI embankment稳corner cavity strip Qin Shu Hao ，弦bleed at the nose of sweet seized AM) FM) ASK Core inflation PSK Tan制features 。信ulcers HUAI snapped embankment Qun Xu malaria tablets using delicious cream changchu destroyed sneeze型compliance turbulent changchu压brazing temperature side of bridge ， exhaust temperature submerged low-hua chiao suspect left Rui turbulent turbulent compliance pupa Xikui weak potato cavity lynx 求 。 department turbulent conduct anti中striped text显Rui-ying制satirical features captured ， ， Fuzeng brazing Canals Xi现invalid wife of mother

利用51单片机来实现航标灯的控制，使用定时器来控制二极管的发光，可以模拟水上航标灯的功能，实现对过往船只的航向指引！-The use of 51 single-chip to achieve the control of aids to navigation lights, the use of timers to control the light-emitting diode, can simulate the function of water navigation lights, the achievement of passing ships on the guidelines of course!

cd4094驱动程序，驱动1位共阴极数码管，pic12c508a作为控制器，gp0-gp2分别为data,clk,strobe.-cd4094 drivers, driving a total digital cathode tubes, pic12c508a as controller, gp0-Day for data, clk, strobe.

PIC单片机4*4键盘扫描C语言程序-PIC single-chip 4* 4 keyboard scan C language program

提出了一个由AT89C52单片机控制步进电机的实例。可以通过键盘输入相关数据, 并 根据需要, 实时对步进电机工作方式进行设置, 具有实时性和交互性的特点。该系统可应用于 步进电机控制的大多数场合。实践表明, 系统性能优于传统的步进电机控制器。-Put forward a AT89C52 single-chip stepper motor control example. Through the keyboard input data, and in accordance with the needs of real-time work on the stepper motor set up, with real-time and interactive features. The system can be applied to stepper motor control of the majority of occasions. Practice shows that system performance is superior to traditional stepper motor controller.

四相步进电驱程序，能够实现电驱的运转速度的控制。-4-phase stepper electric drive program, to achieve the operation of electric drive speed control.

PROFIBUS从站智能协议芯片DPC31与模数转换器AD7705接口设计.rar-PROFIBUS slave smart chip DPC31 agreement with the AD7705 ADC interface design. Rar