51 key matrix scanning procedure, the procedure can be used for multi

《汇编语言》(Assembly Language)是计算机专业中一门重要的基础课程，是一种面向机器的低级语言。它依赖于硬件，能通过巧妙的程序设计充分发挥硬件的潜力。汇编语言程序产生的代码运行效率高。因此，到目前为止，许多软件系统(例如操作系统等)的核心部分仍然用汇编语言来编写。-err

本次设计的温度计采用HT46RB50 微控制器IC，HT46RB50 的AD 口外接一热敏电阻，通过 AD 读回的电压计算出热敏电阻阻值的变化，从而实现侦测外界温度的功能。HT46RB50 通 过USB 将侦测到的温度值传入PC 机的温度显示接口中显示。 本次设计的USB 使用操作系统提供的USB HID 设备类驱动程序。 • 采用USB 控制传输向HT46RB50 发送资料 • 采用USB 中断传输接收HT46RB50 传回的资料-The design of the thermometer used HT46RB50 microcontroller IC, HT46RB50 of AD external mouth of a thermistor, through the AD read-back voltage to calculate the changes in thermistor resistance in order to achieve the function to detect the outside temperature. HT46RB50 through the USB will be detected by the temperature of the temperature of incoming PC-display interface to display. The USB to use the operating system designed to provide the USB HID device class driver.

用汇编语言实现的一个简单的学生档案的管理系统，式界面操作的，通过鼠标的山下左右键来选择相应的菜单了执行操作。-assembly language of a simple student records management system interfaces to operate, through the mountains around the mouse button to select the menu for the corresponding execution.

9454数码管显示交流电压程序,可以做交流电压表用-9454 digital display AC voltage process can be done with AC voltage Table

字模程序 字模程序 字模程序-Fonts procedures Fonts procedures Fonts procedures procedures Fonts

这是个PDA的数据备份盘程序，程序中使用了CRC校验法，是笔者过去的一个得意之作。可供学习串口通讯编程使用CRC校验的朋友参考。-This is a PDA-disk data backup procedures, procedures for the use of the CRC checksum method, is the author of a past finest creations. Serial Communication programming for learning to use reference CRC checksum friends.

此程序的功能是把红外遥控器的地址码(16位)和控制码及反码显示出来,每按一次遥控器都能显示这些数据(用8只数码管16进制显示).-The function of this program is to address the infrared remote control code (16) and the control code and anti-code displayed every time the remote control can display these data (8 by 16-band digital tube display).

这是一个关于嵌入试开发的简单例子，大家可以参考一下，为以后的学习打基础-This is a test of embedded development simple example, we can take a look to the future to build up the foundation of learning

基于人工神经网络的手写英文字母、数字图像识别的源程序代码。-Based on Artificial Neural Network handwritten letters of the alphabet, the digital image to identify the source code.

在dos下编程，列举出系统中的全部PCI设备，显示出厂商和设备号-Under the dos program to enumerate all the PCI devices in the system, indicating that manufacturers and device number