电子密码锁资料，包括设计方案，程序等相关资料。-Electronic locks, including the design of programs, procedures and other relevant information.

08浙江省大学生电子设计竞赛 C题,智能公交系统 获二等奖-08 Undergraduate Electronic Design Contest of Zhejiang Province C title, intelligent transportation system won a Class Two award

51使用总线方式驱动ST7920的128*64测试程序-use 51 parallel port to driver LCD display in scale 128*64 testing code

利用单片机的定时器定时，令十字路口的红绿灯交替点亮和熄灭，实现主支路路口的交通信号灯控制（尽可能保持主线的畅通，即在通常情况下，保持主线的放行，只有在支线到达时，才放行支线），同时采用LCD显示倒计时时间及当前灯的状态-The use of MCU timer timing, so that the crossroads at the traffic lights turn out light and to achieve the main slip road junction traffic lights control (as far as possible the smooth flow of the main line, that is, under normal circumstances, to maintain the release of the main line, and only arrived at the branch only when the release branch), while using LCD display countdown time and the current state of light

鉴于MCS-51系统只提供“二级中断嵌套”，提出扩展51系统中断优先级的纯软件方法。其利用51系统内建的中断允许寄存器IE和中断优先级寄存器IP，通过屏蔽字机制来实现；以C51的形式，给出这种扩展方法的函数库实现，为该方法的使用赋予友好、简洁的用户接口。-Given MCS-51 systems only provide "two interrupt nesting," expanded 51 priority system interruption of pure software. The use of 51 built-in system allows interruption Register IE and priority interrupt register IP, through word shielding mechanisms to achieve; C51 in the form of this expansion is the way to achieve functions, methods for the use of empowerment friendly, simple user interface.

当你进入线路板（PCB）这个行业后，首要面对的就要了解行业术语， 为此特别整理了包括大陆，台湾，香港等多位行业专家编写，修定， 再修定的PCB行业方方面面的术语和词汇。将网上流传的多种版本进行 了修正、统一和分类，更合理的介绍了线路板（PCB）专业术语。方便 大家查阅。-When you enter the circuit board (PCB) in the industry, the primary face and need to know about the industry jargon, for this special finishing, including mainland China, Taiwan, Hong Kong, etc. to prepare a number of industry experts, the revised and then revised all aspects of PCB industry terminology and vocabulary. Will be a variety of popular online version of the amendment, unity and classification, a more reasonable introduction PCB (PCB) professional terminology. Convenient access to everyone.

VB与S7200的PPI通信-VB and the PPI communications S7200

7290i2c软件包.rar可以实现多种功能的I2c

motorola单片机68hc908gr60的LIN总线驱动程序，编译环境Codewarrior，经验证可以使用--Motorola s 68hc908gr60 LIN driver. It is compiled and verified under Codewarrior.

单片机是52的，P0口连到四个数码管的七个管脚，其中两个冒号点为最后两个数码管的DOP点，P1.0至P1.3为四个数码管的选通端，低电平有效。程序2较完整，可实现设定时间功能。-Singlechip is 52, P0 port connected to four of the seven-pin digital tube, two of which point to the last two colon tube DOP-point digital, P1.0 to P1.3 for the election of four digital tube pass-side, active-low. 2 a more complete procedure, set the time function can be realized.