a PWM duty cycle output procedures EM78P458 applications through debugging

与单片机通信,实现多功能控制界面,内容详细,涉及多个方面-With the single-chip communication, the realization of multi-function control interface and detailed, involving many aspects

PHILIPS LPC900 PWM CRTL 时间可调 -PHILIPS LPC900 time adjustable PWM CRTL

pROFIBUS 从站源程序 SPC3 pROFIBUS 从站源程序 SPC3 -PROFIBUS slave source SPC3 pROFIBUS source from the station SPC3

CAN总线控制，SJA1000基本操作，keilC51开发环境-CAN bus control, SJA1000 basic operation, keilC51 Development Environment

P T 2 2 5 7 详 细 中 文 资 料-PT 2 2 5 7 detailed Chinese data

详细介绍RS-485/422原理与区别、元件选择、参考电路、通讯规约、程序设计等方面的应用要点，以及在产品实践中总结出的一些经验、窍门-Detail the difference between theory and RS-485/422, component selection, reference circuits, communications statute, procedures for the application of design elements, as well as practice in the products sum up the experience, know-how

键盘示意图键盘示意图

C51的一个小CODE，自己看了就知道了，适合初学着学习-C51 a small CODE, read on to know their own, and suitable for beginner learning

读51按键，并将ascii码返回计算机串口调试助手，-Read 51 keys, and return the computer serial port debugging assistant

实现多个数字滚动，移位显示，当按下某个按键时，会将对应于端口的数值送入低位数码管显示-To achieve more than the number of rolling, shift display