IRQ4 interrupt has three interrupt sources: 1KHz, 2Kz and 4KHz, each interruptio...

MSP430 CRC算法的实现 （基于msp430x16x）-MSP430 CRC algorithm (based on msp430x16x)

这个做了一个可以随着曲线而移动得小球，很好玩，大家看看是怎么随曲线移动得-This can make a curve and move with a small ball, is a lot of fun, let us look at how the Mobile curve with a

ＣＡＮ协议标准设计规范（电梯项目080716）.docＣＡＮ协议标准设计规范（电梯项目080716）.doc-CAN protocol standard design specifications (elevator project 080716). DocCAN protocol standard design specifications (elevator project 080716). Doc

在电子技术中，频率是最基本的参数之一，又与许多电参量的测量方案、测量结果都有十分密切的关系，因此频率的测量就显得更为重要。测量频率的方法有多种,其中电子计数器测量频率具有精度高、使用方便、测量迅速，以及便于实现测量过程自动化等优点，是频率测量的重要手段之一。在本次毕业设计中我们选择使用单片机来制作数字频率计，并在实际制作中采用了直接测频法。利用延时产生的时基门控信号来控制闸门，通过在单位时间内计数器记录下的脉冲个数计算出输入信号的频率，最终送入LCD中显示。这样制作出来的频率计不仅可以满足设计题目的参数要求，而且具有了单片机的稳定性和成熟性，且控制能力强，是一种低成本，高可靠的设计方案。-In electronic technology, the frequency is one of the most basic parameters, but also with a number of electrical parameters of the measurement program, the measurement results have a very close relationship between the frequency of measurement, therefore it is even more important. Measurement of the frequency of a number of means, electronic measurement of the frequency counter with high precision, easy to use, rapid measurement, and measurement is easy to realize the advantages of process automation is an important means of measuring the frequency of one. Graduates in this design we have chosen to make use of single-chip digital frequency meter, and used in the actual production of a direct

自行开发的51单片机电子钟程序，且带有上位机通讯的功能。-self-developed electronic bell 51 SCM procedures and communication with PC functions.

有详细的PIC单片机C程序，配有完整的注释说明，是学习PIC单片机不可多得的好资料！-PIC has detailed procedures for single-chip C with complete notes, is to learn PIC Singlechip rare good information!

用串口实现单片机和带键盘的显示屏之间的通信，包含包头包尾。-By serial single-chip implementation of the display and keyboard with communication between the packet contains the end of Baotou.

51系列单片机上实现PC键盘的识别，并且在相应的LED点阵上显示结果-51 Series Single Chip PC keyboard to achieve recognition, and in the corresponding LED dot matrix display results

单片机的程序，欢迎探讨-Microcomputer Program, welcomed the study