One, what is "bread board"?1. Structure of bread plateThe breadboard is the "Integrated Circuit Experimental Board", which is a plug-in board, which has several small "sockets (holes)" on the board. In the circuit experiment, can according to the circuit connection request, in the corresponding holes inserts the electr
First, the installation of serial debugging toolsDeveloping Linux drivers cannot be developed directly in Eclipse, like developing Android applications, but can be communicated through the serial port. So we need to install serial debugging tools, here we use the Serial debugging tool is minicom.1, first detect whether the current system supports USB to the serial port, because many notebooks do not support the direct use of the serial line;2, installation minicom Apt-get install minicom3, Confi
Reprint please indicate the source of the article as a link, micropythonqq Exchange Group: 157816561, public number: Micropython playerhas always been about the temperature and humidity of the detection is uninterrupted, this time we continue to detect temperature and humidity, the same or use DHT11 to detect. But this time detected temperature and humidity does not show, also do not alarm, this time to the detected data through the Ethernet upload to the server up. First of all, the desired de
Minnowboard Maxminnowboard Max is a compact, cost-effective and powerful Development board for professionals and manufacturers. The open hardware design enables endless customization and integration of potential. It uses 64-bit intel® atom™? E38XX Series SOC CPU, integrated with Intel HD graphics. Video and digital audio output is available via HDMI with analog audio via expansion board alone. Other I/O inc
Input:
In2 ^ K * 2 ^ K (k> 0)There is a square that is different from other squares (1)
(Figure1)
Then use the following four typesLBone card (2) Overwrites the other checkerboard except the special square, and any twoLNo duplicate dominoes allowed
(Figure2)
Output:
Use these four typesLType bone plate cover except special square(0Indicates a special square.)All squares outside,3As shown in:
2
2
3
3
2
1
0
3
Problem description:
In a checkerboard consisting of 2 k × 2 k squares, a square is different from other squares. It is called a special square and a special checkerboard.
In the Board coverage problem, we need to use four different types of L-shaped bone cards in the figure to cover all squares except the special square on the given special board,
And no two L-type dominoes can overlap.
Analysis:
When
recently, due to the drive experiment on the TQ2440 (ARM9) board, cross-compiling is done on the host (ubuntu13.10) for the system kernel on the front target board. One, cross-compiling of the kernel: 1. Prepare 2.6.30.4 version of the kernel source package, which I use the embedded company provides kernel source package linux-2.6.30.4_20121214.tar.bz2. 2. Open Terminal Input command: Tar vxjf linux-2.6.
First. NFS Service configuration1. Set up the board IP, the same network segment2. Development Board Operation: Ifconfig eth0 192.168.1.203. Test if you can ping the pass: Ping 192.168.1.194. Test whether the board IP is occupied:On the host: sudo ifconfig eth0 down to see if the IP on the Development Board is disconne
Note: If you are using Windows, you can use HyperTerminal: Start-Programs-attachments-communications-HyperTerminalNow we install the configuration minicom under Ubuntu:1. Go to Ubuntu desktop Ctrl+alt+t open terminalInput: sudo apt-get install minicomPassword:Run: sudo minicom-s//configuration minicomSelect the first option Fienames and Paths-enterA (here Set the download path from the board to the PC to manually knock it)B (here set the file path on
The switch in the use of the process, in a dual-machine state can not run, through detection, the signal is the standby side of the circuit board is not normal.
This fault is obviously a hardware failure. First of all, we can replace the circuit board of the standby side with the replacement method. If the fault is still not gone, the real fault is not here. Racks, modules, power supply and connecti
We can see all kinds of message boards on many websites, which is one of the main means of communication between website and visitor. A reasonable design, the interface beautiful message board program can reflect the site from the side of good service, to visitors to leave a good impression, enhance the user's confidence in the site. The message board from the procedural point of view is actually very simpl
This document describes how to modify the iTOP-4418 Development Board user area size. The partition data in the document is for 16GEMMC.Uboot settingsEnter the uboot of the iTOP-4418 as shown in.Enter the command:Setenv FastBoot"Flash=mmc,2:uboot:2nd:0x200,0x78000;flash=mmc,2:2ndboot:2nd:0x200,0x4000;flash=mmc,2:bootloader:boot:0x8000,0x70000;flash=mmc,2:boot:ext4:0x00100000,0x04000000;flash=mmc,2:system:ext4:0x04100000,0x340000000; "Note that the abo
Part1 preface recently I have been studying the OK6410 Development Board. However, rvds in windows is really not easy to use. It also requires dnw to download programs to the Development Board, and all the software should be done under win, in addition, 64-bit win7 also has various problems. I want to port a Linux system. Why can't I complete all the steps in linux? Last night, I searched for information an
1 Overview
This task is to debug the touch screen driver on the flykar I. mx 6 quqd sabrelite Development Board. The touch screen chip is goodix's gt828 chip and the touch screen interface is I2C.
Operating System: Android 4.0.4
Kernel version: 3.0.15
2 debugging steps 2.1 hardware connection 2.1.1 development board hardware interface
The Development Board has p
I thought about 8.2 million hair, but I couldn't help it. the wordpress bulletin board database cache version improves willin's database cache code. When a comment is added, the cache is refreshed. The bulletin board only displays the Administrator's main comments, and the following code is directly placed in functions. in php, and then throw a sentence where the announcement
SCM Control Board in the design process, if you can follow the following several principles, the boss must praise you!(1) In the layout of components, should be related to each other components as close as possible, for example, clock generators, crystal, CPU clock input is easy to produce noise, when placed should be close to them. For those prone to noise of the device, small current circuit, high-current circuit switching circuit, should try to kee
The s3c6410 Development Board is a low-power, cost-effective RISC processor, based on the arm core, using the "core technology + BACKPLANE" structure, which can be used in mobile phone and communication processing.The Linux driver is developed using serial communication to realize debugging information. The Development Board has a serial port that can be connected to the PC via a serial cable. The Linux dri
Through the study of this chapter, I have a certain understanding of the test environment of s3c6410 Development Board, and have mastered the following knowledge points:First, for s3c6410 This development Board, it is a low-power, cost-effective processor, it is based on the ARM11 core.The difference between different development boards is mainly in the way of burning embedded system.Iii. steps to install t
This simple and we summed up the Cisco supported by the different board configuration, it is clear that the board is not fully aware of, or do not understand, encountered the need for different types of card configuration, we do not need to do, no fight back force. I am still a good friend of all of you, now tell us about the common types of cards:Used Cisco routers, such as C7206, C2811, C3845, and so on,
Previous 2440 and 6410 start-up, as long as we burn the bare board code to the beginning of the NAND flash, when the Development Board point is started, the processor will automatically copy the previous piece of code from NAND flash to internal ram execution. Following the previous method, I wrote a compilation code, as follows:1_arm/1_start/start. S1#define WTCON 0xe270000023. Text4. align25. Global _star
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