St7920 serial port driver 12864 KeilV51 very practical

单片机开发源代码, 单片机开发源代码.-Single-chip development source code, source code to develop single-chip, single-chip development source code.

台湾义隆电子em78系列8位cpu的c编程及应用指导书，-Taiwan Elan em78 8 cpu series of c and application programming guide,

在p1.0上产生一个占空比变化的脉冲信号，它产生的脉宽调制信号用于电机的变速控制-err

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

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按键扫描驱动程序。51单片机。c语言编程。-button scanning driver. MCU 51. C programming language.

C51程序框架生成器，主要针对51系列单片机的C程序开发，提供相关寄存器、定时器、串行接口等初始化操作，生成C程序框架。程序中附带数模转换功能。-C51 process framework generator, mainly for the 51 series MCU C application development, to provide relevant registers, timers, serial interfaces such as initialization, generating C procedural framework. Program with digital-analog conversion.

AD7705的C51读写程序.希望对大家有所帮助！-AD7705 to read and write procedures for the C51. Want to be helpful to everyone!

日历时钟DS12887控制实验 实验步骤 （1）连CZ1→CZ7，/IRQ(MC3)→P3.2。 （2）运行程序CLOCK.ASM，主机提示"SE――"等待键输入，①如按F0/EX，则读取显示当前已设置的日历钟。②如按数字键、再按SCAL键，则重新设置日历，例如设置日历为2002年02月22日，只需输入02 02 22即可，20为固定设置，不需输入。-Calendar Clock DS12887 control experiment experimental steps (1) even CZ1 → CZ7,/IRQ (MC3) → P3.2. (2) run the program CLOCK.ASM, host prompt

键盘与显示，按下相应的按键，数码管就显示相应的数字-The keyboard and display, press the corresponding button, digital controls, it displays the corresponding figure