AT89C51显示00～99汇编语言程序 要实现两位数码管显示00～99依次循环的秒表设计，必须得将AT89C51芯片写入程序，只有将程序写进AT89C51芯片，才能实现其秒表的原理功能-AT89C51 showed 00 ~ 99 assembly language to achieve two Digital Display under 00 ~ 99 cycles stopwatch design, it must be written into the chip AT89C51 pr

视频芯片管理系统，应用于宠物管理。后台采用MYSQL数据，使用MSGRIDCONTROLS来实现表格的显示。-Video chip management system, used in pet management. Background using MYSQL data, the use of MSGRIDCONTROLS to achieve the forms show.

时钟芯片PCF8563 年 月 日 时 分 秒-Real-Time Clock Counts Seconds, Minutes, Hours, Date of the Month, Month, Day of the Week, and Year with Leap-Year Compensation Valid Up to 2100

DDS介绍了一种DDS专用芯片AD9835,并利用该芯片设计了一种高精度频率信号发生器,讨论了DDS芯片的基本原理、应用及其与计算机、单片机的接口。(A special chip AD9835 for DDS is introduced, and a high precision frequency signal generator is designed with this chip. The basic principle and application of DDS chip and it