Singlechip entry, C51 routines, digital tube+ Water lamp, source

LCD7920汉字液晶操作程序，已经在产品使用中，-LCD7920 LCD characters operational procedures, already in use in the product,

一个开发51的编程器软件，原版为聂志强所写，但不能编译，缺少一些文件，我加上了，修改了，能够工作了-development of a software program, for Zhixin, Nie Zhiqiang, the original written, but not compile, the lack of some documents, I add the changes to the work

在51等单片机中使用PC键盘的源码-in 51 other microprocessor using a PC keyboard FOSS

采用DDS 技术实现了基于DSP 的模拟调制实验模块。包括系统的硬件和软件设计,模拟调制原理,DSP实现模拟调制的方法,同时采用单象限正弦波形存储器结构对DDS 模块进行了改进,提高调制器的性能。-DDS technology using DSP-based implementation of the experimental module Analog modulation. Including system hardware and software design, analog modulation principle, DSP Analog modulation methods of implementation, while a single-quadrant sine wave-shaped structure of the DDS memory module has been improved to enhance the performance of modulator.

isd1420语音芯片源程序用KEI UVISION打开-isd1420 voice chip source with open KEI UVISION

430学习书籍,好东西,希望大家下载-430 learning books, good things, I hope everyone downloads

一、实验任务 利用开发系统编制程序，产生三角波、锯齿波、正弦波 二、程序编制要求 分别产生三种波形，并能通过按键调节输出频率 三、改变频率的方法 改变数据送入0832的延时，即通过延时子程序的参数改变实现。延时参数的改变即通过键功能选择，用查表法将表格中的延时参数送入延时子程序。 四、程序设计提示 　　1、功能键应设四个：{ 2、功能键的选择： 采用转换设计法时，应选用键值连续的按键-genert

C8051F单片机是完全集成的混合信号系统级芯片（SoC），具有与8051兼容的高速CIP-51内核，与MCS-51指令集完全兼容，片内集成了数据采集和控制系统中常用的模拟、数字外设及其他功能部件；内置FLASH程序存储器、内部RAM，大部分器件内部还有位于外部数据存储器空间的RAM，即XRAM。C8051F单片机具有片内调试电路，通过4脚的JTAG接口可以进行非侵入式、全速的在系统调试。-C8051F is a fully integrated mixed-signal system-on-chip (SoC), and 8051 compatible with the high-speed CIP-51 core, and MCS-51 compatible instruction set, on-chip integration of the data acquisition and control system used in analog and digital peripherals, and other functional components; embedded Flash program memory, internal RAM, the majority of devices located within the external data memory space of RAM, XRAM. C8051F with on-chip debug circuit, through the four legs of the JTAG interface can be non-invasive, full-speed debugging of the system.

89C51系列CPU编程器的程序-89C51 CPU series of procedural programming

按键扫描 51单片机加8279 8279通过74LS 138译码器扩展4×4键盘、6位显示器。 由3-8译码器对SL0～SL2译出键扫描线，由另一3-8译码器译出显示器的位扫描线，并采用了编码扫描方式。 为了防止出现重键现象，扫描输出线高位SL3不参加键扫描译码。CPU对8279的监视采用了查询方式，故8279的中断请求信号IRQ悬空未用。 -Scan button 82,798,279 plus 51 single-chip decoder 74LS 138 through the expansion of 4 × 4 keyboard, the display 6. From 3-8 decoder SL0 ~ SL2 translated to the key scanning line, by another 3-8 decoder translated display scan line, and uses code scanning. In order to prevent the emergence of the phenomenon of re-key, scan the output line does not take part in high level SL3 scan decoding keys. CPU on the 8279 surveillance using the query mode, the 8279 interrupt request signal IRQ left unused.