32bit Carry select adder
上傳時間: 2014-12-02
上傳用戶:wanghui2438
This is 8bit multiplier VHDL code. It s consist of full adder, ripple Carry adder(4bit, 8bit) multiplier 8bit, and test bench file. This is a unsigned type.
標簽: adder 8bit multiplier consist
上傳時間: 2014-08-21
上傳用戶:zhangliming420
implement a number of pattern-matching algorithms and to Carry out an analysis of their operation
標簽: pattern-matching algorithms implement operation
上傳時間: 2013-12-05
上傳用戶:wuyuying
The CD4020BC, CD4060BC are 14-stage ripple Carrybinary counters, and the CD4040BC is a 12-sta
上傳時間: 2013-05-15
上傳用戶:ajaxmoon
·詳細說明:雙音多頻的DTMF信號編碼程序,產生DTMF信號進行編碼。- The double sound multi- frequencies DTMF signal coded program, produces the DTMF signal to Carry on the code.
上傳時間: 2013-04-24
上傳用戶:yangzhiwei
分析了調幅信號和載波信號之間的相位差與調制信號的極性的對應關系,得出了相敏檢波電路輸出電壓的極性與調制信號的極性有對應關系的結論。為了驗證相敏檢波電路的這一特性,給出3 個電路方案,分別選用理想元件和實際元件,采用Multisim 對其進行仿真實驗,直觀形象地演示了相敏檢波電路的鑒相特性,是傳統的實際操作實驗所不可比擬的。關鍵詞:相敏檢波;鑒相特性;Multisim;電路仿真 Abstract : The corresponding relation between modulation signal polarity and difference phases of amplitudemodulated signal and the carrier signal ,the polarity of phase2sensitive detecting circuit output voltage and the polarity of modulation signal are correspondent . In order to verify this characteristic ,three elect ric circuit s plans are produced ,idea element s and actual element s are selected respectively. Using Multisim to Carry on a simulation experiment ,and then demonst rating the phase detecting characteristic of the phase sensitive circuit vividly and directly. Which is t raditional practical experience cannot be com pared.Keywords :phase sensitive detection ;phase2detecting characteristic ;Multisim;circuit simulation
上傳時間: 2013-11-23
上傳用戶:guanhuihong
單片機指令系統 3.1 MCS-51指令簡介 3.2 指令系統 3.1 MCS-51指令簡介 二、MCS-51系列單片機指令系統分類 按尋址方式分為以下七種:按功能分為以下四種: 1、立即立即尋址 1、數據傳送指令位操 2、直接尋址 2、算術運算指令 3、寄存器尋址 3、邏輯運算指令 4、寄存器間接尋址指令 4、控制轉移類指令 5、相對尋址 5、位操作指令 6、變址尋址 7、位尋址 三、尋址方式 3、寄存器間接尋址 MOV A, @R1 操作數是通過寄存器間接得到的。 4、立即尋址 MOV A, #40H 操作數在指令中直接給出。 5、基址寄存器加變址寄存器尋址 以DPTR或PC為基址寄存器,以A為變址寄存器, 以兩者相加形成的16位地址為操作數的地址。 MOVC A, @A+DPTR MOVC A, @A+PC 四、指令中常用符號說明 Rn——當前寄存器區的8個工作寄存器R0~R7(n=0~7); Ri——當前寄存器區可作地址寄存器的2個工作寄存器R0和R1(i=0,1); direct——8位內部數據存儲器單元的地址及特殊功能寄存器的地址; #data——表示8位常數(立即數); #datal6——表示16位常數; add 16——表示16位地址; addrll——表示11位地址; rel——8位帶符號的地址偏移量; bit——表示位地址; @——間接尋址寄存器或基址寄存器的前綴; ( )——表示括號中單元的內容 (( ))——表示間接尋址的內容; 五、MCS-51指令簡介 1. 以累加器A為目的操作數的指令 2. 以Rn為目的操作數的指令 3. 以直接地址為目的操作數的指令 4. 以寄存器間接地址為目的操作數指令 應用舉例1 8段數碼管顯示 應用舉例2 3.2 指令系統 2、堆棧操作指令 3. 累加器A與外部數據傳輸指令 4. 查表指令 MOVC A, @A+PC 例子: 5. 字節交換指令 6. 半字節交換指令 二、算術操作類指令 PSW寄存器 2. 帶進位加法指令 3. 加1指令 4. 十進制調整指令 5. 帶借位減法指令(Subtraction) 6. 減1指令(Decrease) 7. 乘法指令(Multiplication) 8. 除法指令(Division) 三、邏輯運算指令 1. 簡單邏輯操作指令 2. 循環指令 帶進位左循環指令(Rotate Accumulator Left through Carry flag) 右循環指令(Rotate Accumulator Right) 帶進位右循環指令(Rotate A Right with C) 3. 邏輯與指令 4. 邏輯或指令 5. 邏輯異或指令 四、控制轉移類指令 1. 跳轉指令 相對轉移指令 SJMP rel PC←(PC)+2 PC←(PC)+rel 程序中標號與地址之間的關系 2. 條件轉移指令 3. 比較不相等轉移指令 4. 減 1 不為 0 轉移指令 5. 調用子程序指令 7. 中斷返回指令 五、位操作指令 1. 數據位傳送指令 2. 位變量邏輯指令 3. 條件轉移類指令
上傳時間: 2013-10-27
上傳用戶:xuanjie
設計一種應用于某全地形ATV車載武器裝置中的中控系統,該系統設計是以TMS320F2812型DSP為核心,采用模塊化設計思想,對其硬件部分進行系統設計,能夠完成對武器裝置高低、回轉方向的運動控制,實現靜止或行進狀態中對目標物的測距,自動瞄準以及按既定發射模式發射彈丸和各項安全性能檢測等功能。通過編制相應的軟件,對其進行系統調試,驗證了該設計運行穩定。 Abstract: A central control system applied to an ATV vehicle weapons is designed. The system design is based on TMS320F2812 DSP as the core, uses modular design for its hardware parts. The central control system can complete the motion control of the level of weapons and equipment, rotation direction, to achieve a state of static or moving objects on the target ranging, auto-targeting and according to the established target and the projectile and the launch of the security performance testing and other functions. Through the development of appropriate software and to Carry out system testing to verify the stability of this design and operation.
上傳時間: 2013-11-02
上傳用戶:jshailingzzh
The SDI standards are the predominant standards for uncompressed digital videointerfaces in the broadcast studio and video production center. The first SDI standard,SD-SDI, allowed standard-definition digital video to be transported over the coaxial cableinfrastructure initially installed in studios to Carry analog video. Next, HD-SDI wasto support high-definition video. Finally, dual link HD-SDI and 3G-SDIdoubled the bandwidth of HD-SDI to support 1080p (50 Hz and 60 Hz) and other videoformats requiring more bandwidth than HD-SDI provides.
上傳時間: 2013-10-08
上傳用戶:yjj631
波長信號的解調是實現光纖光柵傳感網絡的關鍵,基于現有的光纖光柵傳感器解調方法,提出一種基于FPGA的雙匹配光纖光柵解調方法,此系統是一種高速率、高精度、低成本的解調系統,并且通過引入雙匹配光柵有效地克服了雙值問題同時擴大了檢測范圍。分析了光纖光柵的測溫原理并給出了該方案軟硬件設計,綜合考慮系統的解調精度和FPGA的處理速度給出了基于拉格朗日的曲線擬合算法。 Abstract: Sensor is one of the most important application of the fiber grating. Wavelength signal demodulating is the key techniques to Carry out fiber grating sensing network, based on several existing methods of fiber grating sensor demodulation inadequate, a two-match fiber grating demodulation method was presented. This system is a high-speed, high precision, low-cost demodulation system. And by introducing a two-match grating effectively overcomes the problem of double value while expands the scope of testing. This paper analyzes the principle of fiber Bragg grating temperature and gives the software and hardware design of the program. Considering the system of demodulation accuracy and processing speed of FPGA,this paper gives the curve fitting algorithm based on Lagrange.
上傳時間: 2014-07-24
上傳用戶:caiguoqing