nrf tour

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Embedded Linux Tour--burning and writing bare-metal program of environment construction

portion of NAND flash, then select:0x306ac0~2047Input target block number:0There is the size of the bin file we want to burn, and let's choose which block to burn in, and choose to burn it in the No. 0, where it just started. Then began to burn, wait a moment to burn the success of writing.Of course, if you are familiar with the process of burning writing, you can put the above process together in one command:    sudo oflash 0 2 0 0 0 U-boot.binThe next section will show you how to burn the ent

Down Tour (20): Process address space (i)

, int n Onblock)The function is called by the system to remap_pages () to pre-map a new mapping for the missing pages break that will occur.  The tree structure of memory area and the list structure of memory area  The memory area can be accessed through one of the mmap and MM_RB domains in the memory descriptor, each independently pointing to the entire memory area object that the memory descriptor wants to swap. They contain exactly the same pointer to the vm_area_struct struct, just different

Start the ultimate Efficiency Shell Tour (1)

: http://mimosa-pudica.net/zsh-incremental.html To prevent the URL from being inaccessible in the future, I extract the code as follows: #incrementalcompletionforzsh#byy.fujii4. Execute the following command:CD ~/.oh-my-zsh/plugins/mkdir-p incrcd Incrtouch incr-0.2.zsh (copy and paste the code from the link above into the incr-0.2.zsh file) chmod 777 Incr-0.2.zsh5. Configure the. zshrc file:Vim ~/.ZSHRCJoin at the endSOURCE ~/.oh-my-zsh/plugins/incr/incr*.zsh6. SOURCE ~/.ZSHRC #使其立即生效7, to comp

Small White Linux Learning Tour (ii)

-wh_500x0-wm_3-wmp_4-s_1765845680.png "/>{1..9} 1-9{A.. F} a-f{1,3,5} 135{A,c,e} a C E{1..3} {A.. C} 1a 2a 3a 2a 2b 2c 3a 3b 3c650) this.width=650; "Width=" 501 "height=" 281 "title=" 2212.png "style=" width:625px;height:281px; "alt=" wKiom1nNf_ Njrddoaafsowstdx4935.png-wh_50 "src=" https://s4.51cto.com/wyfs02/M00/07/AB/wKiom1nNf_ Njrddoaafsowstdx4935.png-wh_500x0-wm_3-wmp_4-s_999819033.png "/>[] Indicates the existence of the[A-c] AA BB CC[a-c] AA or BB or C[1-3] 1 or 2 or 3[145] 1 or 4 or 5[^a

The first part of the "Linux Discovery Tour" quiz

test Linux without installing LinuxD. The stored content will be destroyed in a few minutes When Linux is installed in a virtual machine running on a Windows system, which of the following statements is correct?A. The Linux partition is permanently created on the computer's hard driveB. Linux partitions are temporarily created on the computer's hard driveC. No Linux partition was created Gnome,unity,kde is based on the underlying software to display the graphical interface?A. GrubB. X Serve

The second part of the "Linux Discovery Tour" quiz

RM command do?A. Copying filesB. Deleting a fileC. Upload the file to the networkD. Put the file into the Recycle Bin Which of the following commands can display the first few lines of a file?A. HeadB. TailC. Top What is the command prefix that does not require login (toggle) to run the command as root, which can be root?A. sudoB. BerootC. NowD. Impossible I forgot how to use the mkdir command, what should I do?A. In the Linux forum shouted, "Come on, do me a favor."B. Man mkdirC. Help mk

Python Socket Learning Tour (ii)

. SOCK_STREAM), S.bind ()2 Start listening for connection #s. Listen ()3 Enter the loop and continuously accept the client's connection request #s. Accept ()4 then receive the incoming data, and send the data #s. recv (), S.sendall ()5 When the transfer is complete, close the socket #s. Close ()TCP Client:1 Create socket, connect to remote address # Socket.socket (socket.af_inet,socket. SOCK_STREAM), S.connect ()2 Send data and receive data after connection # S.sendall (), S.RECV ()3 When the tr

dotnet Programmer's Java Crawl Pit Tour (ii)

required to hand-write only handler and view.Environment configuration:SPRINGMVC Suspend Cutter:Configure as above:Java Password:Suspend cutter and discard device:(1) Filter: When you have a lot of things, you just want to choose something that meets your requirements. The tool that defines these requirements is the filter.(2) Interceptor (Interceptor): When a process is in progress, you want to intervene in its progression, or even terminate it, which is what the interceptor does.With:(1) Inte

Python Growth Tour

First understanding of PythonI started my first Python study in a previously organized Python resource, and on the whole, I was in touch with Python a long time ago.Just before I study, three days fishing two days, completely equal to the white school, this time determined to learn python, from scratch, aTap a drop to record your learning footprints.Second, the operating systemA large software that can control each computer's hardware, while other software is placed on the operating system to ru

Python 3.6.1 installation scrapy pit Tour

System environment: WIN10 64-bit system installationPython basic Environment configuration does not do too much introductionWindows environment installation scrapy need to rely on Pywin32, download the corresponding Python version of the exe file to perform the installation, download the Pywin32 version of the installation will not failDownload dependent address: https://sourceforge.net/projects/pywin32/files/pywin32/Build%20221/Download dependent installation finished try Pip install Scrapy, ap

Sina Hand Tour Assistant load failure how to do

Solution One: First turn off Sina Hand Tour assistant, and then reopen reload; Solution Two: Temporarily shutdown antivirus software or system firewall, and then try to load again, Solution Three: 64-bit System 360 security Defender (VT shutdown): Workaround four: Install the. NET plugin: Steps: 1. Start menu, select Control Panel to open. 2. There is a view in the upper right corner, select small icon. After you find the program and function, op

"Komatsu teaches you to tour the development" "Unity practical skills" when unity mesh update adds memory

Tag: no 51ctoUnity adds memory when the mesh is updated, and the general method is to use an array to fill in. Vector3[] vertices = new Vector3[segmentCount * 4]; Vector3[] normals = new Vector3[segmentCount * 4]; Vector4[] tangents = new Vector4[segmentCount * 4]; Color[] colors = new Color[segmentCount * 4]; Vector2[] uvs = new Vector2[segmentCount * 4]; int[] triangles = new int[segmentCount * 6]; mesh.vertices = vertices; mesh.normals =

"Komatsu teaches you to tour the development" "Unity practical skills" purpose of unity all special folders (go from the Momo of rain pine)

resource will compress the file, but it will not compress the package in its entirety. And it is a read-only folder, that is, the program can only read and write when it is running. It has different paths under each platform, but you can use Application.streamingassetspath to select the corresponding path based on the current platform.Some games in order to let all the resources use Assetbundle, will put some initial assetbundle in the Streamingassets directory, Run the program when you copy th

Proud Tour 3 "Fast Application" with the game to commemorate graduation season

right click on the current tab and select "Save As Quick" item in the pop-up menu. In the pop-up dialog box to improve the information, click OK to save the current game to the local. Proud Tour Browser 3 "Fast application": Game personalization settings Figure 2 Game Personalization settings When you save, you can enter the name you want to save in accordance with your needs, such as the application can be named as "Proud of the Sky M

Photoshop animated Tour of the Starry matte font

Photoshop Animated Tour of the Starry matte font The tutorial mainly uses Photoshop to make the sparkling matte font animation tutorial, a few days of dynamic text tutorials, there are students to reflect the difficulty of the operation, today to a relatively easy to use. Many beginners do not understand the animation principle, the author also deliberately singled out, lively and appropriate, easy to understand, a learning will be. The material and

"Linux Discovery Tour" Part IV lesson Three: file transfer, dashing sync

do, even if it is left to everyone's after-school interest homework. Able to own Baidu, such as "under the Ubuntu rsync configuration." Summarize The wget command is capable of downloading files. In order to copy files from one computer to another computer. We are able to use the SCP command. It uses the SSH mentioned in the previous lesson, so the transmission is encrypted and is secure. We can use the FTP command to connect to a ftpserver, and then we can upload and dow

"C-Language Discovery Tour" Part II lesson six: Creating your own variable types

select "Copy Link", then paste the link into your browser or email it to yourself, you can open the 0 method 2 in the browser of the computer. Headline net www.toutiao.com, search my self-media "programmer alliance", there are all articles, you can also directly into this link: http://www.toutiao.com/m3750422747/Method 3. My 51CTO Blog and cSDN Blog Link (all articles will be on it) Http://4526621.blog.51cto.com/http://blog.csdn.net/frogoscar new friends How to view all articles: Click on "View

Unity Hands-On tour < two >java Edition Server uses Protostuff to simplify PROTOBUF development

(); Protobufioutil.mergefrom (data, Person2, schema); System.out.println (person2.id); } More features to read the relevant manuals in detail. For example, specify the serialization order of the Entity class fields, ignore some fields that are not serialized, and so on. Performance considerations At first, given the Protostuff's reflection, would it be far worse than the official recommended reflection performance? Without investigation, there is no say. Someone has alread

Unity Hand Tour < three > chat room source based on Unity+java

, the length of the message body is parsed, and then waits for sufficient binary stream, and finally decodes the entity object with Protobuf-net.The process of sending a message is just the opposite. Serializes an entity object into a binary stream and then assembles it into a message body, sent to the backendB.ui DesignThe UI of the program is made using Ngui. The interface layout is relatively simple. Nickname box, message list, message box. The name is good, the layout is good, then the commi

Start the Java Tour

Learning the server development of the application system may not be a "travel", nor will it be so ' enjoyable '. However, I hope this time will be different from the past, more efforts to learn the Java EE.Starting in February, the Web front-end development, and in the company's projects, independently completed the 4 small Web projects and MDM products part of the Web features, with the ability to develop jquery plug-ins. For HTML tags, css styles, JS scripts, and jQuery2.1, Bootstrap, Aces, A

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