dhtcy

ATM 机控制的恒流源设计 硬件与软件方案(ATM machines controlled current source design hardware and software solutions)

三星S3C2440板子中配置时钟的程序，ARM ADS开发工具，初学的时候很实用。(Samsung S3C2440 board configured clock procedures, ARM ADS development tools, a novice when it is practical.)

l3g4200 89s52 1602 显示出测得的三轴倾角(l3g4200 89s52 1602 three-axis shows the measured angle)

原创程序，用于智能筛选计算气象站数据（如气温、太阳辐射、风速、湿度等）的年、月、日、时均值，数据缺失能自动报错。(A program that can compute the mean value of meteorological data.)

本程序目的是提供使用stm32串口收发一帧数据的一种方法，采用中断方式接受和发送，每进一次中断接收或发送一字节，可以实现pc机与板子通信或板子与板子间通信。注意本程序中外接高速晶振为12M赫兹，而大部分板子为8M赫兹，本程序所用芯片是stm32RBT6(The purpose of this procedure is to provide a method of using STM32 serial port to send and receive a data, using interrupt mode to receive and send, every one into the time interrupt receiving or sending a byte, can realize PC and the communication or board and board communication. Note that this procedure the external high-speed crystal oscillator for the 12M Hz, while the majority of board is 8M Hz, the chip used in this procedure is stm32RBT6)

　设计了一种以PIC16F877单片机作为控制核心的录放音智能语音系统, 采用ISD4003 - 8M设计制作了具有定时录音、 放音的语音提示器, 可以真实的再现语音的真实自然效果, 避免了一般语音电路因为量化和压缩所造成的量化噪声和失真。该系统 操作简单, 可靠性高, 成本低, 可广泛用于各种对安放要求较高的场合。(Design a single chip microcomputer as the core to control the PIC16F877 recording sound intelligent voice system, adopting ISD4003-8 M design a timing recording, Let the sound of speech cuing component, can be true of representation of the true nature of speech effect, to avoid the general voice circuits for quantitative and compressed by the quantization noise and distortion. The system Simple operation, high reliability, low cost, can be widely used in all kinds of higher requirements to put the occasion. )

说明：  本实验将实现如下功能：开机的时候先检测SD卡和SPI FLASH是否存在，如果存在则获取其容量，并显示在LCD上面（如果不存在，则报错）。之后开始USB配置，在配置成功之后就可以在电脑上发现两个可移动磁盘。我们用DS1来指示USB正在读写，并在液晶上显示出来，同样，我们还是用DS0来指示程序正在运行。(This experiment will achieve the following functions: when booting, first detect the existence of SD card and SPI FLASH, and if there is, obtain its capacity, and display it on the LCD (if not, report an error). Then the USB configuration is started, and after the configuration is successful, two removable disks can be found on the computer. We use DS1 to indicate that the USB is reading and writing, and display it on the LCD. Similarly, we use DS0 to indicate that the program is running.)

步进电机解码红外控制，能够实现红外与步进电机完美控制！(Stepper motor control decoding Infrared, Infrared and stepper motor to achieve perfect control!)

Keil uVision3例证代码NOMOD51 This file is part of the C51 Compiler package Copyright (c) 1988-2005 Keil Elektronik GmbH and Keil Software, Inc. Version 8.01(Keil uVision3 example code NOMOD51This file is part of the C51 Compiler package Copyright (c) 1988-2005 Keil Elektronik GmbH and Keil Software, Inc. Version 8.01)

Text-line extraction in unconstrained handwritten documents remains a challenging problem due to nonuniform character scale, spatially varying text orientation, and the interference between text lines.