7段數碼顯示譯碼器設計7段數碼是純組合電路,通常的小規模專用IC,如74或4000系列的器件只能作十進制BCD碼譯碼,然而數字系統中的數據處理和運算都是二進制的,所以輸出表達都是十六進制的,為了滿足十六進制數的譯碼顯示,最方便的方法就是利用譯碼程序在FPGA/CPLD中來實現。例子作為七段譯碼器,輸出信號LED7S的7位分別接數碼管的7個段,高位在左,低位在右。例如當LED7S輸出為“1101101”時,數碼管的7個段g、f、e、d、c、b、a分別接1、1、0、1、1、0、1;接有高電平的段發亮,于是數碼管顯示“5”。
上傳時間: 2014-01-26
上傳用戶:1427796291
計算這個智力題: 在這個乘法算式里,每一個字母代表著0-9中的一個數,不同字母代表不同數。 A B C D E F G H * A J --------------------- E J A H F D G K C B D F H A J E C --------------------- C C C C C C C C C 請問,C 代表哪個數字?
上傳時間: 2013-12-30
上傳用戶:stampede
The "GEE! It s Simple" package illustrates Gaussian elimination with partial pivoting, which produces a factorization of P*A into the product L*U where P is a permutation matrix, and L and U are lower and upper triangular, respectively. The functions in this package are accurate, but they are far slower than their MATLAB equivalents (x=A\b, [L,U,p]=lu(A), and so on). They are presented here merely to illustrate and educate. "Real" production code should use backslash and lu, not this package.
標簽: illustrates elimination Gaussian pivoting
上傳時間: 2016-11-09
上傳用戶:wang5829
The "GEE! It s Simple" package illustrates Gaussian elimination with partial pivoting, which produces a factorization of P*A into the product L*U where P is a permutation matrix, and L and U are lower and upper triangular, respectively. The functions in this package are accurate, but they are far slower than their MATLAB equivalents (x=A\b, [L,U,p]=lu(A), and so on). They are presented here merely to illustrate and educate. "Real" production code should use backslash and lu, not this package.
標簽: illustrates elimination Gaussian pivoting
上傳時間: 2014-01-21
上傳用戶:lxm
簡單有限元計算程序。 NJF---結點自由度數 E---彈性模量 NE---單元數 T---板厚度 VM---泊松比 z---實型二維數組,用來存放結點坐標 ZJ---實型二維數組,用來存放每個約束自由度方向和該方向的約束值, ie---實型二維數組,存放布爾矩陣 p---實型一維數組,先存放等效結點載荷,解完方程后存放輸出的結點位移 a,b,a---實型數組,存放各個單元的面積及由結點坐標計算的bi,bj,ci,cj g---實型數組,存放單剛子塊 zk---實型二維數組,存放整剛矩陣
上傳時間: 2014-01-24
上傳用戶:cuibaigao
數字音樂盒 (1) 硬件電路中用P1.0~P1.7控制按鍵,其中P1.0~P1.3掃描行,P1.4~P1.7掃描列。 (2) 用P0.0~P0.7,P2.0~P2.7控制LED,其中P0.0~P0.7控制七段碼a,b,c,d,e,f,g,用P2.0~P2.7為數碼管位選信號。 (3) 用,P2.0~P2.2作為LCD的RS,R/W,E的控制信號。用P0.0~P0.7作為LCD的D0~D7的控制信號。 (4) 用P3.7口控制蜂鳴器(J2,J4斷開,J3短接)。 (5) 電路為12MHZ晶振頻率工作,起振電路中C1,C2均為30pf。
上傳時間: 2016-12-03
上傳用戶:ruixue198909
made by: kangkai data:2008.11.23 this one is used to test arm7 str71x. use a led to test GPIO. a---------P0.0 b---------P0.1 c---------P0.2 d---------P0.3 e---------P0.4 f---------P0.5 g---------P0.6 just run it and you will see the led to show 0-9 all the time.
上傳時間: 2016-12-16
上傳用戶:moerwang
Overview Input Clock = 24Mhz Preview VGA 15fps @ 60Hz VGA 12.5fps @ 50Hz Capture VGA 15fps @ 60Hz VGA 12.5fps @ 50Hz Output Format YCbCr 4:2:2 (ITU 656) YCbCr to RGB conversion R = Y + (351*(Cr – 128)) >> 8 G = Y – (179*(Cr – 128) + 86*(Cb – 128))>>8 B = Y + (443*(Cb – 128)) >> 8
上傳時間: 2013-12-24
上傳用戶:遠遠ssad
一個基于GTK+的單詞數值計算器,1、 按照規則計算單詞的值,如果 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z 26個字母(全部用大寫)的值分別為 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26,如: WINJACK這個單詞的值就為:W+I+N+J+A+C+K=23+9+14+1+3+11=71% HARDWORK=H+A+R+D+W+O+R+D=8+1+18+4+23+15+18+11=98% LOVE=L+O+V+E=12+15+22+5=54% LUCK=L+U+C+K=12+21+3+11=47% ATTITUDE= A+T+T+I+T+U+D+E=1+20+20+9+20+24+4+5=100% 2、對程序的界面布局參考如下圖所示,在第一個單行文本框輸入一個單詞,點擊“計算”按鈕,按照以上算法計算出該單詞的值。 3、如果在最下面的單行文本框輸入一個文件路徑,此文件每行記錄一個單詞,那么經過程序計算出各個單詞的值,并把結果輸出到當前目錄下result.txt文件中。如果文件不存在,應該提示錯誤。
上傳時間: 2014-01-11
上傳用戶:康郎
This document provides guidelines and describes how to easily port S60 2nd Edition C++ applications to S60 3rd Edition. The document has been written based on experiences of porting regular S60 2nd Edition applications, such as the S60 Platform: POP/IMAP Example [4] that can be downloaded from Forum Nokia. Code snippets from the example are shown in Chapter 8, “Application build changes,” and in Appendix A, “Code example." In addition, Appendix B, "Commonly used functions that require capabilities," and Appendix C, "Commonly used interfaces that have been changed or removed," provide useful information on some frequently used functions and interfaces in third-party applications.
標簽: application guidelines describes document
上傳時間: 2017-01-29
上傳用戶:wang5829