net objective c and the ios sdk

... indicate a file that holds Objective- C code and will be processed by the Objective- C compiler File names ending in c are handled by the C compiler, and cpp files are the province of the C+ + compiler ... Objective- C, this book introduces you to its companion, Apple’s Cocoa (for OS X) and Cocoa Touch (for iOS) toolkits Cocoa and Cocoa Touch are written in Objective- C and contain all the elements of the ... Although OS X and especially iOS are relatively new, Objective- C and Cocoa are much older Brad Cox invented Objective- C in the early 1980s to meld the popular and portable C language with the elegant...

Ngày tải lên: 24/04/2014, 10:06

... that holds Objective- C code and will be processed by the Objective- C compiler File names ending in c are handled by the C compiler, and cpp files are the province of the C+ + compiler (In Xcode, all ... over the world xxi Chapter Hello w elcome to Learn Objective- C on the Mac! This book is designed to teach you the basics of the Objective- C language Objective- C is a superset of C and is the language ... applications that have a true Mac OS X look and feel This book teaches you the Objective- C language and introduces you to its companion, Apple’s Cocoa toolkit Cocoa is written in Objective- C and contains...

Ngày tải lên: 07/12/2012, 15:47

... family of the C6 x processors is the fixed-point C6 4x An application-speci c integrated circuit (ASIC) has a DSP core with customized circuitry for a speci c application A C6 x processor can be used ... function to find the factorial of a number (factclasm .c) ;Factclasmfunc.sa Linear ASM function called from C to find factorial ref _factclasmfunc: cproc reg mv mv sub loop: [b] _factclasmfunc number ... with the CPU Between the four DMA channels, channel has the highest priority 82 Architecture and Instruction Set of the C6 x Processor and channel has the lowest priority Each DMA channel can be...

Ngày tải lên: 17/10/2013, 19:15

... Program Calling ASM Function Using Circular Buffer (FIRcirc) The C program FIRcirc .c (Figure 4.33) calls the ASM function FIRcircfunc.asm (Figure 4.34), which implements an FIR lter using a circular ... of the C source program FIR .c, which implements an FIR lter It is a generic FIR program, since the coefcient le included, bs2700.cof (Figure 4.5), species the lters characteristics This coefcient ... frequency Use as input the wav le TheForce.wav and verify the scrambling/descrambling scheme Interception of the speech signal can be made more difcult by changing the modulation frequency dynamically...

Ngày tải lên: 24/10/2013, 09:15

... Michalson, and R Chassaing, Fast and efficient filter design and implementation on the TMS32 0C6 711 digital signal processor, International Conference on Acoustics Speech and Signal Processing (ICASSP), ... stages The coefficient file contains the numerator coefficients, a’s (three per stage), and the denominator coefficients, b’s (two per stage) The a’s and b’s used in this book correspond to the b’s and ... Proceedings of the 7th Allerton Conference on Circuit and System Theory, 1969, pp 69–78 L B Lawrence and K V Mirna, A new and interesting class of limit cycles in recursive digital filters, Proceedings...

Ngày tải lên: 28/10/2013, 16:15

... Select View Æ Watch Window and insert the two expressions j and out (right click on the Watch window) Click on +out to expand and view out[0] and out[1] that represent the real and imaginary components, ... REFERENCES J W Cooley and J W Tukey, An algorithm for the machine calculation of complex Fourier series, Mathematics of Computation, Vol 19, 1965, pp 297–301 J W Cooley, How the FFT gained acceptance, ... coefficients are the same as BP55.cof, with a center frequency at Fs/4, introduced in Example 4.4 The coefficient file coeffs.h also contains a set of coefficients identical to LP55.cof, which represents...

Ngày tải lên: 07/11/2013, 10:15

... result, the samples of the interference are highly correlated On the other hand, the samples of the wideband signal are relatively uncorrelated The characteristics of the narrowband interference permits ... convergence and accuracy of the adaptation process (adaptive step size) is b 218 Adaptive Filters For each speci c time n, each coefficient, or weight, wk(n) is updated or replaced by a new coefficient, ... structures and is an adjustable FIR filter Whereas the coefficients of the frequency-selective FIR filter discussed in Chapter are fixed, the coefficients, or weights, of the adaptive FIR filter can...

Ngày tải lên: 07/11/2013, 10:15

... since branching occurs in cycle 9, after the ADD instruction SUB instruction must start one cycle before the branch instruction, since the loop count is decremented before branching occurs Therefore, ... 32-bit products The sum of the lower and upper 32-bit products are accumulated in A7 and B7, respectively The epilog section contains the following instructions associated with the actual cycle (not ... product ;second product ;sum of first and fifth products ;sum of second and sixth products ;sum of first, fifth, and ninth products This accumulation is shown associated with the loop cycle The actual...

Ngày tải lên: 14/12/2013, 14:15

... the loop filter and the DCO, and time stamps CCS buffers these data so that the data can be accessed by other applications on the PC host CCS has an interface that allows PC applications to access ... specified duration, a signal-detected mode is activated 9.10 MISCELLANEOUS PROJECTS The following projects were implemented using C/ C3x and C2 x /C5 x code 9.10.1 Acoustic Direction Tracker The acoustic ... between the microphones and the source The angle c = arcsin(a/b), where the distance a is the product of the speed of sound and the time delay (phase/frequency) Figure 9.7 shows a block diagram of the...

Ngày tải lên: 14/12/2013, 14:15

... family of the C6 x fixed-point processors The C6 711 is capable of both fixed- and floating- Code Composer Studio point processing The architecture and instruction set of the C6 711 are discussed in Chapter ... Use the 5-V adapter included with the DSK package to connect to the power connector J4, to turn on the DSK Install CCS with the CD-ROM included with the DSK, preferably using the c: \ti structure ... the example codec_poll included with CCS It includes functions to initialize the DSK, the codec, the serial ports, and for input/output Vectors_11.asm: version of vectors.asm included with CCS,...

Ngày tải lên: 26/01/2014, 07:20

... processor The maximum level of the input signal to be converted is determined by the speci c ADC circuitry on the codec, which is V p-p with the onboard codec After the captured signal is processed, the ... Figure 2.3 and is included with the CCS package Serial communication techniques are used Primary and secondary communications allow conversion of data and control transfer across the same serial ... sigma–delta modulators The sampling rate Fs is set by the frequency of the codec master clock MCLK of 4096 kHz, such that Fs = MCLK 512 = kHz A diagram of the AD535 codec interfaced to the C6 711 DSK is...

Ngày tải lên: 26/01/2014, 07:20

... http://developer.apple.com/library /ios/ #documentation/Cocoa/Conceptual/ObjectiveC/ Introduction/introObjectiveC.html Once you have a firm handle on Objective- C, you need to master the fundamentals of the iOS SDK ... use Core Data, so check its checkbox Finally, make sure the “Use Automatic Reference Counting” checkbox is checked Click Next, and choose a location to save your project (Figure 2-4) The checkbox ... into the SDK, touching on new and, in some cases, more advanced topics Read the book and be sure to build the projects yourself—don’t just copy them from the archive and run them once or twice...

Ngày tải lên: 20/02/2014, 02:20

... http://developer.apple.com/documentation/Cocoa/Conceptual/ObjectiveC 37 38 CHAPTER 3: Handling Basic Interaction Actions Actions are methods that are part of your controller class They are also declared with a special ... code, and Xcode popped up this window, called the Quick Help panel, which describes the protocol Notice the two icons in the upper-right corner of the floating documentation window Click the left ... controls, and other elements that the user can see and interact with Controller: Binds the model and view together and is the application logic that decides how to handle the user’s inputs The goal...

Ngày tải lên: 06/03/2014, 07:20

... worry—we’ll cover the iPad also There are three checkboxes on this sheet You should check the middle option, Use Automatic Reference Counting, but uncheck the other two Automatic Reference Counting (ARC) ... the user can see and interact with  Controller: The code that binds together the model and view It contains the application logic that decides how to handle the user’s inputs The goal in MVC ... started: • Check out Learn Objective- C on the Mac: For OS X and iOS (2nd edition, Apress, 2012):, an excellent and approachable introduction to Objective- C by Mac-programming experts Scott Knaster,...

Ngày tải lên: 16/03/2014, 00:20

... that’s the basic distinction To keep things nice and uncomplicated, we’ll create a basic Cocoa application, so make sure the Cocoa Application template is highlighted in the project window, leave the ... the New and Open commands grayed out The Edit menu contains the standard pasteboard actions such as Copy and Paste The Window menu contains commands that affect the blank window visible on screen ... shortcut You could also rightclick with the mouse (or C- click) on the Text App icon that has appeared in the Dock at the bottom of your screen and choose Quit These are all perfectly acceptable ways...

Ngày tải lên: 22/03/2014, 15:20

... to the C language @interface Circle says to the compiler, “Here comes the interface for a new class named Circle.” Note  NSObject in the @interface line tells the compiler that the Circle class ... object of the message (the green rectangle) is consulted to see what its class is The rectangle class checks its pile of code and gets the address of the draw function Objective- C runs the code ... OS X or iOS look and feel In addition to presenting Objective- C, this book introduces you to its companion, Apple’s Cocoa (for OS X) and Cocoa Touch (for iOS) toolkits Cocoa and Cocoa Touch are...

Ngày tải lên: 29/03/2014, 07:20

... http://developer.apple.com/library /ios/ #documentation/Cocoa/Conceptual/ObjectiveC/ Introduction/introObjectiveC.html Once you have a firm handle on Objective- C, you need to master the fundamentals of the iOS SDK ... use Core Data, so check its checkbox Finally, make sure the “Use Automatic Reference Counting” checkbox is checked Click Next, and choose a location to save your project (Figure 2-4) The checkbox ... into the SDK, touching on new and, in some cases, more advanced topics Read the book and be sure to build the projects yourself—don’t just copy them from the archive and run them once or twice...

Ngày tải lên: 30/03/2014, 17:20

... differences between them On the other hand, the Foundation framework classes, such as NSString and NSArray, are shared between Cocoa and Cocoa Touch Note the search field at the bottom of the library ... that the user can see and interact with  Controller: The code that binds together the model and view It contains the application logic that decides how to handle the user’s inputs CHAPTER 3: Handling ... tools for creating and debugging source code, compiling applications, and performance tuning the applications you’ve written You can download Xcode from the Mac App Store, which you can access from...

Ngày tải lên: 07/04/2014, 15:01

... for these book projects, and then return to Xcode and navigate into that directory Before you click the Create button, be sure to uncheck the Create local git repository for this project checkbox ... With the Source Control checkbox unchecked, create the new project by clicking the Create button NOTE: A source control repository is a tool used to keep track of changes made to an application’s ... paper is known as the dock The dock contains an icon for each top-level object in the nib file If you click the triangle-in-acircle icon just to the right of the bottom of the dock, you’ll see a...

Ngày tải lên: 24/04/2014, 10:14

... of the v2 API Controller Activation Is, Well, Very Nice Whether the subject is the older XML Web Services (a.k.a ASMX services), WCF, or services with ASP .NET MVC, the concept of service activation ... the entire collection of tasks Delete the tasks identified by the URI Technically speaking, the REST architecture is agnostic about any specific protocol That includes the HTTP protocol In other ... specific identifier, 1234 If instead the system is to generate the identifier, then the caller uses the POST action and a collection URI This also ties into the concept of idempotency The PUT and...

Ngày tải lên: 24/04/2014, 14:37