文中介绍一种不用光耦就可以实现隔离的方法

44B0开发板的CAN开发原理图，让你能够轻松的实现开发板子的CAN总线。-44B0 development CAN development board schematics, so you can easily board the realization of the development of the CAN bus.

基于SoPC的嵌入式二维条码识读系统使用集成在QuartusII中的SoPC Builder开发组件配置生成片上系统,结合降噪处理、背景分离 图像校正、图像二值化、码字识别、信号纠错等技术，处理由OmniVision OV7649 CCD产生的条码图像。-SoPC based embedded system uses two-dimensional bar code reader integrated in QuartusII development of SoPC Builder component configured to generate system-on-chip, combined with noise reduction treatment, the background separation image correction, image binarization, character identification code, the signal error correction technologies such as treatment by the OmniVision OV7649 CCD barcode images generated.

返回一个城市的列表,传入省直接返回城市数组-Returns a list of cities, the introduction of direct return to the provincial city of the array

ARM7嵌入式经典程序调试，很适合ARM初学者学习，欢迎下载交流。-ARM7 Embedded classic program debugging, it is suitable for beginners to learn ARM are welcome to download the exchange.

此例为opnet使用的典型实例，可以提供给大家学习参考，共六幅拓扑图

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

ICETEK-DM642-C评估板是一个低功耗独立的开发平台，使用户可以对TI的DM64x DSP系列进行评测和开发应用。ICETEK-DM642-C评估板还可以作为为TMS320DM642 DSP芯片设计的硬件参考板-ICETEK-DM642-C Evaluation Board is a low-power independent of the development platform, enables users to to TI

基于8051单片机的数控电源设计方案-8051 NC-based power supply design program! ! ! ! ! ! ! ! ! ! ! ! ! ! !

介绍由美国TI公司的数字信号处理器TMS320LF2407A和SGS公司的步进电机驱动芯片PBL3717A构成的两相混合式步进电机的控制系统。-introduced by the United States TI"s digital signal processor and SGS TMS320LF2407A the stepper motor drive chip Built constitute the two-phase hybrid stepping motor control system.

PCI9054数据资料完整版，对本地总线的各种模式有详细叙述。-PCI9054 full version of data on the local bus models are described in detail.