介紹一種基于單片機的多路溫度采集及監(jiān)控系統(tǒng)，能夠測量6路溫度信號，具有計算機聯(lián)網(wǎng)功能，各測量點可以單獨監(jiān)控和設(shè)置，可根據(jù)用戶的需求自動控制。測量溫度范圍為-10 ℃～200 ℃，控制方式采用模擬量調(diào)壓模式。該系統(tǒng)具有控制精度高、沖擊小等特點。
Abstract:
A temperature collecting and surveillance-controlling system based on sing-chip microcomputer is introduced. It can measure 6 channel signal of the temperature,and it has a function of network connection.The temperature measure points can be monitored and located, it can be controlled automatic according to user’s demand.The temperature range is -10℃ to 200℃.The model of control is adjustable voltage with simulation. It features high precision and little impact.
基于AT89C52單片機的步進電機控制系統(tǒng)設(shè)計
摘 要: 提出了一個由AT89C52單片機控制步進電機的實例。可以通過鍵盤輸入相關(guān)數(shù)據(jù), 并根據(jù)需要, 實時對步進電機工作方式進行設(shè)置, 具有實時性和交互性的特點。該系統(tǒng)可應(yīng)用于步進電機控制的大多數(shù)場合。實踐表明, 系統(tǒng)性能優(yōu)于傳統(tǒng)的步進電機控制器。
關(guān)鍵詞: 單片機; 步進電動機; 直流固態(tài)繼電器; 實時控制
ABSTRACT: A stepp ing motor control system based on AT89C52 chip microcomputer was described.The data can be inputwith keyboard, and stepp ingmotorwas controlled by these data. According to the demand, users can set the workingmodel of stepp ingmotor in real2time. This system can be widely used in stepp ing motor controlling. The p ractice showed that the performance of this system outdid the tradi-tional stepp ing motor controller.
BurchED B5-X300 Spartan2e
using XC2S300e device
Top level file for 6809 compatible system on a chip
Designed with Xilinx XC2S300e Spartan 2+ FPGA.
Implemented With BurchED B5-X300 FPGA board,
B5-SRAM module, B5-CF module and B5-FPGA-CPU-IO module
PCI.VHD, THE INTERFACE MODULE WITH PCI AGENT CHIP
--v1.0: For CY7C9689, First Version working on L01A chip
--V2.0: For simplified PCI Agent, Xilinx and AMD chips
1. 下列說法正確的是 （ ）
A. Java語言不區(qū)分大小寫
B. Java程序以類為基本單位
C. JVM為Java虛擬機JVM的英文縮寫
D. 運行Java程序需要先安裝JDK
2. 下列說法中錯誤的是 ( )
A. Java語言是編譯執(zhí)行的
B. Java中使用了多進程技術(shù)
C. Java的單行注視以//開頭
D. Java語言具有很高的安全性
3. 下面不屬于Java語言特點的一項是( )
A. 安全性
B. 分布式
C. 移植性
D. 編譯執(zhí)行
4. 下列語句中，正確的項是 ( )
A . int $e,a,b=10
B. char c,d=’a’
C. float e=0.0d
D. double c=0.0f
