Tutorial by Examples: n

Introduction Texas Instruments' (TI) CC26XX series SoCs are readily available wireless MCUs targeting Bluetooth Low Energy (BLE) applications. Along with the MCUs, TI offers a full-fledged software stack that provides necessary API and sample codes to help quickly get developers started with the to...

I would venture to say that 80% of the processing that goes on in modern computing systems does not require user interaction, such as kernel code for Linux, OSX and Windows. For those that do, there are two fundamentals which are interactivity via keyboard (pointing devices) and console. This exampl...

To install/update MVC version, follow these steps: In visual studio, open the Package Manager console (use CTRL + Q, and type package manager console) In the console appearing, enter the following after the console cursor showing PM>: Install-Package Microsoft.AspNet.Mvc -Version 5.2.3...

override func viewDidLoad() { super.viewDidLoad() NotificationCenter.default.addObserver(self, selector: Selector(("batteryStateDidChange:")), name: NSNotification.Name.UIDeviceBatteryStateDidChange, object: nil) NotificationCenter.default.addObserver(self, selector: Selecto...

CloudFormer template translates the existing AWS entities to a generate new CloudFormation template to accelerate the time to recreate the environment. The CloudFormer launches in a default VPC which might not be suitable in the cases where the default VPC is deleted. This code base is fork from the...

A decision tree is a classifier which uses a sequence of verbose rules (like a>7) which can be easily understood. The example below trains a decision tree classifier using three feature vectors of length 3, and then predicts the result for a so far unknown fourth feature vector, the so called te...

See Swift 3 example for usage information and notes func pbkdf2SHA1Calibrate(password:String, salt:[UInt8], msec:Int) -> UInt32 { let actualRoundCount: UInt32 = CCCalibratePBKDF( CCPBKDFAlgorithm(kCCPBKDF2), password.utf8.count, salt.count, CCPseudoRandom...

Determine the number of PRF rounds to use for a specific delay on the current platform. Several parameters are defaulted to representative values that should not materially affect the round count. password Sample password. salt Sample salt. msec Targeted duration we want to achieve f...

SVN FreeBSD project use SVN as default SCM. Source could be download with svnlite software. Get Current cd /usr/src svnlite checkout https://svn.freebsd.org/base/head . Get Releases cd /usr/src svnlite checkout https://web.freebsd.org/base/release/11.0.0 . Tarball (http & ftp) You c...

Go to the directory with the source code: cd freebsdsrc Go to the directory with the kernel's configuration code: # If your system is 32-bit. cd sys/i386/conf/ # If your system is 64-bit. cd sys/amd64/conf/ Get a copy of the GENERIC kernel (let's call it MODEDKERNEL). It will ...

Build the world Go to the freebsdsrc/ (the root directory of the FreeBSD source tree you've already downloaded) and build the world: sudo make -j${NUMBER_OF_PROCESSORS} buildworld KERNCONF=MODEDKERNEL -DNO_CLEAN Estimated time Estimated time on Hasee Q540S running on a one processor: 8 hours...

Let's configure the destination directory for the root filesystem of your new FreeBSD (for example /usr/home/beastie/MODEDKERNEL). Add the following lines to /etc/src.conf to set it up: .if ${KERNCONF} == "MODEDKERNEL" DESTDIR?=/usr/home/beastie/MODEDKERNEL MODULES_OVERRID...

Install the world sudo make installworld KERNCONF=MODEDKERNEL Estimated time on Hasee Q540S: 5 minutes. Install the kernel sudo make installkernel KERNCONF=MODEDKERNEL Estimated time on Hasee Q540S: a few seconds.

The preserveAspectRatio attribute has an optional parameter: meet | slice. The default behavior is meet which stretches the content in both the x and y dimension until it fills either the width or height of the viewBox. The alternative - slice preserves the aspect ratio of the content but scales up ...

identification division. program-id. deleting. environment division. configuration section. input-output section. file-control. select optional indexed-file assign to "indexed-file.dat" status is indexing-status organization is ind...

Spring is a framework, which provides bunch of classes, by using this we don't need to write boiler plate logic in our code, so Spring provides an abstract layer on J2ee. For Example in Simple JDBC Application programmer is responsible for Loading the driver class Creating the connection Cre...

// Default UINavigationBar appearance throughout the app [[UINavigationBar appearance] setTitleTextAttributes:@{NSForegroundColorAttributeName: [UIColor whiteColor], NSFontAttributeName : [UIFont fontWithName:@"HelveticaNeue-CondensedBold...

Spring is a vast framework, so the Spring framework has been divided in several modules which makes spring lightweight. Some important modules are: Spring Core Spring AOP Spring JDBC Spring Transaction Spring ORM Spring MVC All the modules of Spring are independent of each other except S...

Keychain.h #import <Foundation/Foundation.h> typedef void (^KeychainOperationBlock)(BOOL successfulOperation, NSData *data, OSStatus status); @interface Keychain : NSObject -(id) initWithService:(NSString *) service_ withGroup:(NSString*)group_; -(void)insertKey:(NSString *)key with...

Tested with A.S. v1.4.1 but should work with newer versions too. Create a new Android Studio project using the project wizard (Menu:/File/New Project): Call it "cvtest1" Form factor: API 19, Android 4.4 (KitKat) Blank Activity named MainActivity You should have a cvtest1 dire...