SD2000 clock chip to read and write procedures

在51单片机上运行的俄罗斯方块游戏,内含键盘扫描，键码处理和液晶驱动程序-Single-chip microcomputer in 51 running on Tetris games, including keyboard scanning, key code processing and LCD driver

这是一个4*4键盘程序,已通过串口检测,效果还不错，给需要的朋友的一个参考。-This is a 4* 4 keyboard procedures have been detected through the serial port, the effect is also true that to a friend in need a reference.

l298调 速 程 序 常规的接法是这样的，EnableA接PWM信号，Input1输入正反控制信号， Input2是Input1经过反相以后的信号。L298的电平是与TTL电路相兼容的，一般是超过2.5V就为高电平。假如Input1为高电平时电机正转，那么低电平时就是反转，PWM信号控制电机的转速。 _________________ -l298 procedures conventional speed connection that is the case, EnableA then PWM signal, Input1 input positive and negative control signals, Input2 is Input1 through after RP signal. L298 level is compatible with TTL circuits, and is generally more than 2.5V for the high. If Input1 is high when the motor is transferred, then that is when low-level inversion, PWM signal to control motor speed. _________________

s系列的51单片机的看门狗的c语言include库 可以用它轻松使用看门狗，内函驱动函数FeedDog（）-s series of 51 single-chip watchdog of the c language include the Treasury can use it easy to use watchdog, within the letter of drive function FeedDog ()

对于学习，使用PCI单片机来开发的人有参考价值,PCI编程使用技术资料-For the study, the use of PCI microcontroller to develop people have reference value " PCI programming using the technical information"

设计很好的一个单片机232处理程序，应用于单片机处理速度慢，上位机数据快的情况下-Well-designed a microcontroller 232 handler, used in single chip processing speed slow, fast PC data in case of

NTC热敏电阻测温，编译环境，AVR-G-NTC thermistor temperature measurement, the compiler environment, AVR-G

电磁兼容技术培训（杨济深教授讲课稿）,这可是权威之作。是学习电磁兼容技术的工程师必学宝典。- Electromagnetic compatibility technology training (Professor Yang Jishen teaches manuscript), this but work authority. Is engineer which studies the electromagnetic compatibility technology must study the precious book.

DS18B20温度控制器是以美国MAXIM/DALLAS半导体公司的单总线温度传感器DS18B20为核心，以ATMEL公司的AT89C52为控制器制作的结构简单、测温准确、具有一定控制功能的智能温度控制器。适合于恶劣环境的现场温度测量，如：环境控制、设备或过程控制、测温类消费电子产品。现实生活中的电冰箱，电脑机箱，就使用的这种经济的温度传感器显示工作环境温度。通过这种动态的温度测量，能实时的了解各种仪器设备的工作温度，进而判断仪器设备工作是否正常。-DS18B20 temperature controller is based on the United States MAXIM/DALLAS Semiconductor single-bus temperature sensor DS18B20 as the core, ATMEL Corporation AT89C52 produced for the controller structure is simple, accurate temperature measurement has a certain control functions of the smart temperature controller. Suited to harsh environment of the scene temperature measurement, such as: environmental control, equipment or process control, temperature measurement Consumer electronic products. Real-life refrigerators, computer chassis, on the use of such economic temperature sensor shows the temperature working environment. Through this dynamic temperature measurement, real-time understanding of a variety of instruments and equipment operating temperature, and the

PIC1687X单片机,LCD12232汉显,所有数据存于片内FLAISH中,断电保持,硬件调试通过-PIC1687X microcontroller, a LCD12232 Han, All data stored in chip FLAISH, maintain power outages, hardware debugging through