键盘按键程序,C语言编写的

STK500_2下载器 M8 支持bootloader(带bootloader源码) 使用STK500_2 协议的ISP下载器，监控芯片 M8,数据通讯RS232.使用 ATMEL AVRStudio 4.xx STK500工具的进行软件升级。可通过ATMEL AVRStudio 4.xx STK500工具升级固件程序。升级方法：通过设定电压 即按“write voltage”按钮进入bootloader程序。 -M8 browser support STK500_2 download bootloader (with bootloader source code) to use the ISP to download STK500_2 agreements, and monitor chip M8, data communication RS232. Use ATMEL AVRStudio 4.xx STK500 tool for software upgrades. By ATMEL AVRStudio 4.xx STK500 firmware upgrade tool. Upgrade methods: by setting the voltage that is, according to

l045w型段码液晶例程（汇编语言）-l045w type of code routines LCD (assembly language)

基于51单片机动态显示数码管,及中断说明等-51 MCU-based dynamic display of digital control

美国TI公司的protel 元器件库，在应用中需要更新，本人收集了最新的版本共30M，为提高上传速度分六次上传。文件名依次为TI_1到TI_6。希望大家设计电路板时少走弯路这里是第二个TI-2-TI" s U.S. Treasury protel components, need to be updated in the application, I collected a total of up-to-date version of 30M, to improve the upload speed upload six hours. File name followed by TI_1 to TI_6. Hope that the design of circuit board less detours here is the second TI-2

程控增益线性脉冲放大器的设计。 设计了一种新型程控增益线性脉冲放大器。采用准高斯CR2RC2CR 成形电路结构,使用非易失性数字电位器和精密运放,使电路结构大大简化,抗干扰能力强,增益多级连续变化平稳,且具有温漂低、脉冲线性好等特点-Programmable gain linear pulse amplifier design. Design a new type of programmable gain linear pulse amplifier. Using quasi-Gaussian CR2RC2CR forming circuit structure, the use of non-volatile digital potentiometers and precision operational amplifier, so that greatly simplify the circuit structure, anti-jamming, multi-stage continuously variable gain stable, and has a low drift, pulse linear good characteristics

基于51系列单片机的串口通信测试程序，希望对大家有帮助-Based on 51 Series Single-chip serial communications test program, and they hope to have everyone help

FM1808是一种掉电可保存的RAM存储器,应用很广泛.-FM1808 is a power-off kept in RAM memory, which is widely used.

RS-485接口具有较强的抗干扰性，数据传输的距离较远，在一些应用中常常需要把RS-232标准的信号转换为RS-485的标准信号进传输。图中所示电路允许数据在RS-232/RS-485这两个不兼容的串行数据接口间传递。传输速度为480波特时，传输距离可达1750米。图中双RS-232收发器IC1将主机(PC)输出的RS-232电平转换为TTL电平，驱动高速RS-485收发器IC2 的输入，倒相器使IC2、IC3在受到起始位时被激活。-RS-485 trying to lay all the thoroughly bleed at the nose picking up the birthday 扰 fern cavity 强 ， Chu Huai basin cavity beat escapement for the birthday candle远Now ， Which instance, using Beckmannia中

基于PIC16F877A的DS18B20一线总线多路测温系统（采用Proteus模拟）。 Proteus模拟电路图＋PIC C语言源程序（MPLAB V8.00） 这可不是用多I/O模拟的多路测温哦！看系统功能： 1）、由一线数据线寄生供电，采用MOSFET强上拉给DQ供电； 2）、上电自动搜索可用的传感器并做CRC校验（实现了Search ROM命令）； 3）、 报警下限可选择； 4）、轮询显示温度，通过LCD1602输出； 5）、 传感器中途拔出或温度越界均报警； 6）、 采用声光报警方式，可做为温度控制信号标志。 -PIC16F877A-based multi-channel bus of DS18B20 line temperature measurement system (using the Proteus simulation). Proteus analog circuit+ PIC C language source code (MPLAB V8.00) This is not using multiple I/O simulation of multi-channel temperature measurement Oh! See system functions: 1) by the parasitic power line data line, using MOSFET strong pull-up power supply to the DQ 2), power-on automatically search for available sensors and do CRC check (to achieve a Search ROM command) 3) alarm limit choice 4), polling shows the temperature, through the LCD1602 output 5), half-way pulled out or the temperature sensors are all cross-border police 6), using sound and light alarm mode can be used as the

汉字取模软件,有C语言格式和汇编语言格式，好东西。大家共同享用。-Chinese modulus software, has C language format and assembly language format, a good thing. Be shared among everyone.