51 51匯編指令表
上傳時間: 2013-10-16
上傳用戶:micheal158235
小弟簡單的做了一個數(shù)碼表(匯編寫的),望大神們指點一二
上傳時間: 2013-10-17
上傳用戶:waixingren
STM32L151xx數(shù)據(jù)表
上傳時間: 2013-10-26
上傳用戶:swing
當(dāng)執(zhí)行機構(gòu)需要的不是控制量的絕對值,而是控制量的增量(例如去驅(qū)動 步進電動機)時,需要用PID的“增量算法”。 增量式PID控制算法可以通過(2-4)式推導(dǎo)出。由(2-4)可以得到控制器 的第k-1個采樣時刻的輸出值為:
上傳時間: 2013-10-11
上傳用戶:waizhang
首先研究CAN總線和SAE J1939協(xié)議,提出一種基于MC9S12HZ256微控制器的總線式汽車數(shù)字儀表解決方案。詳細(xì)介紹SAE J1939協(xié)議的報文幀格式及應(yīng)用層協(xié)議中發(fā)動機相關(guān)參數(shù)的定義,以及步進電機及其驅(qū)動和車速信號的處理方法。該數(shù)字儀表系統(tǒng)硬件平臺由微處理器和信號采集和信息處理及顯示等模塊組成。軟件設(shè)計部分編程實現(xiàn)了對CAN總線和各傳感器數(shù)據(jù)的讀取、處理。該系統(tǒng)能夠?qū)崟r反映車輛工況。 Abstract: In this paper,CAN bus and SAE J1939protocol are researched,and a vehicle digital instrument solution based on MC9S12HZ256MCU is proposed.The message frame format and some engine-related parameters’definition in SAE J1939application layer protocol are introduced in detail.Stepper motor and its driver,the methods of speed signal process-ing are also introduced.The hardware platform of vehicle digital instrument is composed by MCU,signal acquisition mod-ule,and signal processing and displaying module.Data receiving and processing from CAN bus and sensors are accom-plished by programming,and vehicle condition can be reflected in real-time.
上傳時間: 2013-10-20
上傳用戶:huannan88
摘要:本文介紹應(yīng)用PIC16C57單片機設(shè)計的一種可編程、高性能的數(shù)碼式樓宇對講系統(tǒng),詳細(xì)闡明了有關(guān)工作原理和關(guān)鍵技術(shù)。本系統(tǒng)充分應(yīng)用PIC單片機的軟硬件資源,具有可編程、電路簡單、功能強大等優(yōu)點,在安居工程、樓宇技防系統(tǒng)等領(lǐng)域具有廣泛的應(yīng)用前景。 關(guān)鍵詞:PIC 單片機 樓宇對講 編碼 譯碼 可編程
標(biāo)簽: PIC 單片機 中的應(yīng)用 可編程
上傳時間: 2013-11-14
上傳用戶:hj_18
摘要:本文介紹了一種基于單片機和測量電壓真有效值方案設(shè)計的智能數(shù)字交流毫伏表。它能精確測量任意波形的低頻模擬周期信號并同時顯示其有效值和分貝值。具有智能量程轉(zhuǎn)換功能。 關(guān)鍵詞:單片機 數(shù)字毫伏表 真有效值 智能量程轉(zhuǎn)換
上傳時間: 2013-11-09
上傳用戶:gaoqinwu
針對材料試驗機等設(shè)備中要求測量或控制材料拉伸或壓縮的位移,一般采用光電軸角編碼器檢測位置信號,輸出正交編碼脈沖信號。若采用其他方法檢測位置信號,必然導(dǎo)致電路設(shè)計復(fù)雜,可靠性降低。因此,提出一種基于LS7266R1的電子式萬能材料試驗機設(shè)計方案。給出了試驗機中的控制器工作原理,LS7266R1與單片機的接口硬件設(shè)計,以及主程序軟件流程圖。巧妙地把力量傳感器,位移傳感器等機械運動狀態(tài)的壓力或拉力以及位置坐標(biāo),變成了電壓信號和電脈沖數(shù)字信號,供A/D測量和LS7266R1計數(shù),從而實現(xiàn)了獨立完成材料試驗控制或通過PC機串口命令完成材料試驗控制。 Abstract: Aiming at the requirement that the displacement of the tension and compression always be tested and controlled in the equipement such as material testing machine. The position signal was tested by photoelectric axial angle coder. Therefore, the paper proposes the design of electronic universal testing machine design based on LS7266R1. If the position signal detected by other methods, will inevitably lead to the circuit design complexity, reliability decreased. The work theory of the controller, the hardware interface design between LS7266R1 and single chip, and the flow chart of main program, are presented in this paper. The signal of the compression or tension power and displacement at working, which tested by power sensor and displacement sensor especially, is changed into electric voltage and electric pulse numerical signals. And these signals can be tested by A/D and counted by LS7266R1. Finally the test of the material properties can be controlled by itself, or controlled by the COM command of PC.
上傳時間: 2013-11-02
上傳用戶:yl1140vista
以FPGA為數(shù)字邏輯平臺,借助繼電器矩陣和多路模擬開關(guān),以ADS1211為核心,在單片機控制下,聯(lián)合實現(xiàn)手持式虛擬/智能存儲示波表中數(shù)字多用表功能,實驗表明該設(shè)計是行之有效的。文中介紹了數(shù)字多用表的系統(tǒng)結(jié)構(gòu),重點討論了其測量電路和智能控制方案。 Abstract: The digital multimeter in virtual/intellect digital-oscillorgaph was fulfilled, which was controlled by singlechip computer by relay matrix and analogue switches,in which FPGA was used for digital logical plot-form, ADS1211 for kernel chip, the experiment showed the design was feasible, the system struction was present-ed in the paper, measure circuit and intellect control plan of digital multimeter were mainly given.
上傳時間: 2013-11-02
上傳用戶:瓦力瓦力hong
設(shè)計實現(xiàn)了一種基于MSP430系列超低功耗單片機的新型高精度自控式骨矯形器,介紹了系統(tǒng)的總體設(shè)計及硬件軟件設(shè)計。試驗表明,該骨矯形器可實現(xiàn)自控內(nèi)固定、牽張、回縮及加壓固定功能,且功耗低、操控簡單、控制精度高、安全可靠。
上傳時間: 2013-10-16
上傳用戶:1427796291
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