ARM嵌入式USB

这是简单的编码显示字母 A，在螺旋桨时钟显示此编码使用，欢迎大家下载、试用。谢谢大家的支持！

在2210上运行的一个嵌入式web，功能很好。在2210的开发版上运行通过。任019-In 2210 running on an embedded web, a good feature. In 2210 the development version running on through. REN 019

451示例多种格式--Multiple formats for 451 examples.

//ICC-AVR application builder : 2008-11-9 18:51:09 // Target : M16 // Crystal: 1.0000Mhz

数码时钟和日历使用 at89x51.it 是键盘更改 ds1302 时间和日期。

一个MiniGui环境下触摸屏校验程程序,根据实际稍稍修改一下即可使用,赶紧下载吧.-MiniGui environment of a touch-screen check-way process, in accordance with the actual use of a little tinkering can immediately download it.

主要讲述亚洲光电应用的现状和前景，对产业的发展和规模做了详细的研究-major Asian optoelectronic applications on the current situation and prospects for the development of the industry and size of a detailed study

提供的程序是供四相步进电机使用。本实验使用的步进电机用直流+12V电压，电机线圈由A、B、C、D四相组成。 2. 驱动方式为四相单四拍方式,各线圈通电顺序如下表。表中首先向A相线圈输入驱动电流，接着向B，C，D线圈通电，最后又返回到A相线圈驱动，按这种顺序轮流切换，电机轴按顺时针方向旋转。若通电顺序相反，则电机轴按逆时针方向旋转。-provide for the procedures of the four-phase stepper motor use. This experiment used the stepper motor 12V DC voltage electrical coils A, B, C, D phase. 2. Four-driven approach to making four single-phase, the coil electrifying sequence the following table. Table A first phase coil input drive current, then to B, C, D coil electricity and eventually return to the A-phase coil driven by the rotation order of this switch, the electrical axis by rotating clockwise direction. If electricity in reverse order, the motor shaft by the anti-clockwise rotation.

本系统分电压测量和信号产生输出两大部分，电压测量部分以模拟电路为主，配合放大模块、A/D转化模块、显示模块；通过凌阳单片机进行数据处理，在误差允许范围内显示测量电压值。信号产生以直接数字式频率合成器为核心，经过AT89S52对DDS芯片内部进行控制，使之输出标准正弦波形，利用编程实现频率预置、步进，达到电压输出频率的可调节步进。通过调试与测量完成了题目的基本部分和全部发挥部分的要求并有自己的创新。-Voltage measurement points of the system and the output of two major signals, voltage measurement circuitry to simulate the main part, with the amplification module, A/D conversion module, display module through Sunplus Single-chip data processing, in the range of error allowed shows the value of measuring voltage. Signal generated by direct digital frequency synthesizer for the core of the DDS chip AT89S52 after the internal control standards so that the output sine wave shape, frequency of use of pre-programming, step to the output voltage adjustable frequency step. Debugging and measurement, through the completion of the basic part of the topic and all the requirements to play a part and have their own innovation.

C51按键测试程序,经本人制作电路调试合格,可以工作,请多多指教-C51 key test procedure, after I qualified production circuit debugging, you can work please advise