cf8020+cp2200(网络)的驱动实现

单片机P1口与4个按键连接，用于信号幅度和频率调节操作键。单片机P0、P2.7、P3.6(-WR)与DA0832、2个741(运放)连接构成波形信号输出电路。 编程使波形信号输出电路输出正弦波信号，并且可通过操作键调节信号的幅度和频率。幅度和频率调节级别从0~10，共11个等级。 -Singlechip P1 I connect with the four buttons for the signal amplitude and frequency adjustment operation keys. Singlechip P0, P2.7, P3.6 (-WR) and DA0832, 2 months 741 (operational amplifier) to connect constitute waveform signal output circuit. Programming so that waveform signal output circuit output sine wave signal, and can be operated keys adjust the signal amplitude and frequency. Amplitude and frequency adjustment level from 0 ~ 10, a total of 11 grades.

飞利浦提供的I2C参考程序。共P87C591使用。-provided by the Philips I2C reference program. A total of P87C591 use.

LT_1B msp430开发板例子程序－TA_10

这是本人做的一个仿真软件的例子，keil c51语言写的，编译调试环境为keil7+proteus67sp3-This is the one I do simulation software examples keil c51 language was written. Debugging Environment compiler for keil7 proteus67sp3

对显示器LCD的读写和I2C的控制程序，供大家享用-Reading and writing on the LCD display and I2C control procedures for everyone to enjoy

PWM控制输出电压由于该程序所需完成的功能比较简单，设计时采用了简单的前后台组织结构：后台程序（主程序）在非通讯状态时工作，完成各项数据的采集和预处理，并标准化至通讯协议所规定的格式。这一过程不停进行，随时提供最新数据；前台程序（中断服务程序）在接收到来自控制器的命令时启动。它对命令加以识别，并按要求向控制器传送相应数据或对数据进行解析执行。该程序的流程示意如图-PWM output voltage control due to the completion of the procedures required for the function of a relatively simple design, a simple organizational structure around Taiwan : background (main program) in non-state communication, complete data acquisition and pre-processing, and standardized communication protocol to the format provided. This process conducted on a continuous basis and provide the latest information; Prospects (interrupt service routine) from the receiving controller to activate the orders. It ordered to be identified, together with a request to the controller or corresponding data transmission for data analysis implementation. The indicative of processes figure

AVR microcontrol programme is a EEROM example

1256高频头遥控接收版本，利用红外头，普通的遥控器来接收改写频率，可以直接写需要解调的频率，外围电路十分简单，可以参考1256高频头资料，红外头只要和单片机连接上就行。-1256 high-frequency version of the first remote control receiver, using IR head, an ordinary remote control adapted to receive frequency, you can directly write the need for demodulation of frequency, the external circuit is very simple, you can refer to the first information on 1256 high-frequency, infrared, and as long as the first single-chip microcomputer connected on line.

外部SRAM与C8051F000接口 Copyright (C) 2000 CYGNAL INTEGRATED PRODUCTS, INC. All rights reserved. FILE NAME : Sram.ASM TARGET MCU : C8051F000 DESCRIPTION : External Sram read/write verification routine for IDT 71V124SA.-external SRAM interface with the C8051F000 Copyright (C) 2000 CYGNAL INTEGRATED PRODUCTS, INC. All rights reserved. FILE NAME : MCU Sram.ASM TARGET : C8051F000 DESCRIPTION : External Sram read/write verification routine for IDT 71V124SA.

The New Computerised Transit System (NCTS) is a European wide system, based upon electronic declaration and processing that was designed to replace the paper based CT system and to provide better management and control of both Community and Common Transit. It involves all EU Member States and the EFTA. The NCTS in each country is connected through a central domain Brussels, to all of the other countries. This provides links between some 3000 European customs offices and replaced the paper based system. In order to connect on-line with NCTS, traders need the facility to generate electronic Transit messages, and the facility to send/receive these messages to/from the IRL - NCTS. Connected traders receive electronic responses advising of key decisions during the procedure, such as acceptance of declaration, release of goods, notification of discharge. It is not be possible for Traders to interface directly with NCTS. They will simply be able to exchange defined structured m