in the current directory
"CD" Toggle current directory
"chmod" Change file properties
"CP" Copy files
"DD" Copy files
"MV" mobile directory file, or renamed
"Cat" View file contents
Kill kills the process.
"ipconfig" View change network interface address and parameters
"Ping" detects network status
"Netstat" View network status
Telnet log on to a remote host
"Sqlite3/path/databasename.db" opens a database. You can then use database operations commands such as Select,insert,delete
"Tcpdump-p-nnn
of device tree, please check out a blog from teacher Song Baohua:
HTTP://BLOG.CSDN.NET/AIRK000/ARTICLE/DETAILS/2 1 Drive development based on device tree mechanism kernel-case study
In this chapter, the author talks about the driver development case of the kernel using the device tree mechanism based on linux-3.2.x. The driver development case for this article is the keyboard driver code written by the author during his work. The CPU platform uses the I.mx6ul of
The configuration of the kernel is determined by the configuration options in the form of config prefixed with the config_feature.The configuration options determine the following two areas:1) which files are compiled2) What code is processed by the preprocessor directiveConfiguration options control the compilation process with the BOOL option and the TriState option. The value of the BOOL option is yes and the value of the No,tristate optionYes, no, module. When you select module, the code is
If you are developing your own board, you need to use the GPIO pin to control the 3G module boot/shutdown, the following article will be helpful to you, is the processor IMX6 and ZTE MG3732 module as an example.One, pin connectionThe processor's gpio3_gpio[9] connects the on/off (29) pin of the 3G module to control the power on/off of the 3G.Second, switch machine conditionsThe On/off pin is turned on continuously 2500~3500 milliseconds low, and the o
smartphone, tablet or laptop. Nexdock can support Windows devices and can also connect to Iphone,ipad and Android phones and tablets. The Nexdock can also be used as a primary display for a pocket computer, or as a second display of power.Nexdock is Indiegogo on the crowdfunding, the $119 presale price, the time remaining 1 months, only completed more than 50% points of crowdfunding goals.NovenaNovena Computer is an open-source system platform for the computer, the processor for Freescale
Linux kernel version: linux-3.0.35Development Board: I. Mx6s my-imx6-ek200System: UBUNTU12Preface: Before writing a blog about how to read the system time through the application layer program, write a blog about how to write and save the RTC clock today.One, write time 1. Preliminary knowledge: A, Mktimeheader File:#include function:time_t mktime(struct tm *timeptr) function Description: Mktime () replaces the TM structure data referred to by TIMEPT
The most recent work needs to do with the Freescale IMX5 and iMX6 platform to do some of the system core packages under the ARM platform integration, such as glib, Dbus, Pkg-config, LIBXML2, Pixman, GDB, libpng, GCC, GStreamer, FFmpeg, BlueZ and other software source code for the arm platform packaged into a binary RPM package and binary source code package. src.rpm.
First, why to package the source code into the RPM format of the binary package.
1,
This is the first part of all my words on the development on Freescale's imx6 family Soc.
As one knows, whatever embedded products you are designing or developping, the hardware is the one which shoshould be stable before the software, at least the AP (application processor itself ).
During the development process, some aspects are encountered:
1. Voltage Supply to the AP
Nowadays, especially in Android based products, PMIC is used very vastly for pow
I. MX6Q (TQIMX6Q/TQE9) Study Notes-New bsp LCD porting, tqimx6qtqe9
After the above transplantation, eMMC can run properly on tqimx6q. This article will transplant the LCD driver in the future.
Write data through DTS
The LCD controller of imx6 is slightly different from the previous one. For more information, see the chip manual. Refer to the data transmission on the sabrelite Development Board to add the following content:
/ {...aliases {mxcfb0 = mxc
This period of time has been busy with the embedded project, you can say from the embedded novice a little bit of the introduction, about the embedded and IMX6 Core Board development has a little understanding, especially for the building of the board environment. Hardware development, build the environment, is a very large amount of engineering, is also a very important step, the environment can not be put on the next step. Of course, this premise
When using an embedded development Board running a Linux system (example imx6 Saber Lite), important commands are often used, such as viewing the system version of the brush into the development Board, the CPU of the Development Board, the various external devices that the Development Board inserts (such as the USB wifi,3g MODEM, SATA hard drive ..... ), the memory footprint.
System
# uname-a #查看内核/operating system/CPU information
# head-n 1/etc/issue
Did not study carefully, the use of the next, summed up the point, also searched a bit of information.
--------------------------------------------------------------------------------------------------------------- -------------
Simple to speak: (UART and COM)
Embedded inside said serial port, generally refers to the UART port, but we often do not know it and COM port differences, as well as RS232, TTL and other relationships, in fact, uart,com refers to the physical interface form (hardware), a
1. Install Eclipse plugin: Zylin Embedded CDTGo to Help menu-> Software Updates-> Available Software Add SiteInput HTTP://OPENSOURCE.ZYLIN.COM/ZYLINCDTInstall
2, on the target board running GdbserverGdbserver 192.168.4.244:2345 fooWhere 192.168.4.244 is the remote host's ip,2345 is the port used by the target board. Foo is the executable file to debug.You can debug a program in an NFS partition directly by mounting an NFS partition so that you avoid copying the program to the target board every
Pro 5?
As we all know, the Charm clan itself is to do MP3, in fact, this sentence in yesterday's press conference, Bai Yongxiang again mentioned. And we know that 2 months ago the Phantom of the MX5 flagship machine does not support HiFi music, let a lot of kerosene to spit trough. Therefore, in order to reflect the domestic high-end brand image, the charm of the Pro 5 joined the HiFi 2.0, so this is worth affirming, and therefore very sure to tell you that the Phantom of the Pro 5 is to suppor
Matrix multiplication is one of the most common problems in linear algebra, and it is widely used in numerical computation.
For a long time, the matrix multiplication algorithm is as straightforward as its own definition.
> Set A is the matrix of MXN, B is the NXP matrix, then C=ab is the product of matrix A and matrix B, and C is the MXP matrix.
The specific algorithm of > i.e. C[i][j]=∑a[i][k]xb[k][j] (k from 1 to N) is described as:
for (int i =
Tested, perfectly supported my reader acr122u NFC contactless IC card reader USB, my Mifare ultralight card.
The release 1.20 of Springcard pc/sc SDK is now available in the Download sections of the website (direct link to Latest VERSION:HTTP://WWW.SPRINGCARD.COM/DOWNLOAD/FIND.PHP?FILE=PCSC-SDK).
People working in the ' emerging ' NFC field would be is glad to discover the updated versions ofNfctool, a. N ET based application (written in C #) that makes it easy-to-create or to-readNFC Tags comp
Apple pay is said to be using NFC to make near-field small payments, like the UnionPay/Shanghai Pudong Development Bank issued pendant NFC wallet, more UnionPay/mobile discovered SWP-NFC SIM card-can be multi-logical card, can be prepaid online, offline payment.
Problem:
The NFC chip in 1:iphone 6 is for Apple Pay only and does not have a variety of other gameplay options like Android NFC phone-Metro card/Access card/Membership card/Smart label/Rice card, etc.
2: When can I open the NFC API
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