串行A

PC104总线规范v2_5.pdf,very good~-PC104 bus specification v2_5.pdf, very good ~

应用背景DS1302 是美国DALLAS公司推出的一种高性能、低功耗、带RAM的实时时钟电路，它可以对年、月、日、周日、时、分、秒进行计时，具有闰年补偿功能，工作电压为2.5V～5.5V。采用三线接口与CPU进行同步通信，并可采用突发方式一次传送多个字节的时钟信号或RAM数据。关键技术基于单片机的ds1302电子时钟，用lcd1602显示，时间可调，整点报时

电气设备维修方法和实际应用，比较实用，和大家分享。-Electrical equipment maintenance practices and practical applications, more practical, and to share.

antenna sedign and implementation for all application

This just to activate-This is just to activate

8816d的一些开发设计说明，入门级别的，难的不好找，要自己摸索的。-8816d note some of the development of design, entry-level, difficult不好找, to their own to find out more.

有1、2、3、4个数字，能组成多少个互不相同且无重复数字的三位数？都是多少？ 1.程序分析：可填在百位、十位、个位的数字都是1、2、3、4。组成所有的排列后再去 　　　　　　掉不满足条件的排列。 -There are numbers 1,2,3,4, how many can be composed of mutually exclusive and non-duplication of the same three-digit numbers? How many are? 1. Program analysis: can be filled in the 100, 10, single-digit figures are 1,2,3,4. With all components and then remove the conditions are not satisfied with the arrangement.

SHA加密算法是目前广为应用的重要加密方法之一。而SHA-1 生成 160 位的消息摘要，虽然执行更慢，却被认为更安全。明文消息的最大长度可达到 264 位。下面是网络上流传的SHA算法，我们自己调试了一下，已经通过。现把主函数和算法函数贴出来。-SHA encryption algorithm is an important widely used encryption methods. And SHA-1 generates the message digest 160, although more slowly, but think more secure. Explicit messages the maximum length could reach 264. The following is a network spread SHA algorithm, debugging a bit of our own has passed. Are the main functions and algorithms function posted.

文件系统设计思想，思想很重要呀，有好思想才会有好作品-File system design idea, thought it very important, there are good ideas will have good works

我们做微机硬件综合实验做的一个交通信号灯实时控制系统设计，很好哦！还附有实验报告．-A traffic lights real-time control system design of the micro computer hardware experiment.PS:contain the experiment report-computer hardware comprehensive experiment done a real-time traffic signal control system design, good oh! Also experiment with the report.- A traffic lights real-time control system des ign of the micro computer hardware experiment. PS : contain the experiment report