This article will use a GitHub open source component technology to read and write Siemens PLC data, using the Ethernet-based TCP/IP implementation, no additional components, read operations as long as the background thread will not be stuck thread, this component supports super convenient high-performance read and write operationGitHub Address: Https://github.com/dathlin/HslCommunication If you like star or fork, you can also enjoy support.中文版 version:https://github.com/dathlin/hslcommunication/
Tags: ICA blog read amp long connect mode server SOC StartPreface This article is mainly questions and answers, in response to the vast number of netizens frequently asked questions and summed up the problem NuGet Address: https://www.nuget.org/packages/HslCommunication/ GitHub Address: Https://github.com/dathlin/HslCommunication If you like star or fork, you can also enjoy support. You can download the installation in the NuGet Manager in Visual Studio, or you can enter the following
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Preface: December 2014, sophomore last semester, the computer composition Principle course design, I wrote some machine instructions, and even designed some micro instructions (extended instruction set, write to the control memory inside), think that I was very strong ...
PS. Just finished the microcomputer interface course Design report, the microcomputer interface reminds me of the principle of computer c
Experimental conclusionLab missions (1)1. Write instructions to memory using the e commandFirst use the e command to the memory unit starting from 1000:0 to write the task requirements of the machine code, and then use the R command to see the register status in the CPU, you can see, CS=073FH, ip=0100h, point to memory 073f:0100, and then use the R command to modify CS, IP content, so that CS : IP points to 1000:0. Then use the T command to execute th
Program the experiment name using machine commands and assembly instructions (1)
Lab Date: 8.8.10.22
School: Software Institute
Major: Computer Science and Technology
Grade: Level 2017
Shift: 5
Name: Chen yiming
Student ID 20171308194
I. Tutorial Purpose1. understand how to use the debug tool to compile and debug assembly commands.
2. master the basic knowledge about CPU, registers, and memory in Chapter 2.
3. Master the usage of several comma
Debug Command supplement
In executiondThe command can contain the address parameter (segment address: Offset address), where the segment address is first sentdsRegister and then hand it over to the processor.
Therefore,dThe command can also be used as follows:d SR:offset(SR refers to segment register)For example:
-R ds: 1000-d DS: 0; view the content in the memory range starting from 1000:0
-R ds: 1000-d DS: 10 18; view 1000:10 ~ Contents in
-D Cs: 0; view the instruction code in the current Cod
Simple use of php destructor, php instructions. Simple use of php destructor, php instructions with the widespread development of object-oriented programming, object-oriented shows many interesting problems. I believe that many beginners will learn simple instructions on using php destructor.
With the widespread development of object-oriented programming, object
4 Common syntax:Note: Disclaimer: Output:Script: can contain any Java executable code. Cases{%>}%>3 Common compilation directives:Page: Instructions for the current pageInclude: Specify a different pageTaglib: Defining and accessing custom labels7 Action InstructionsJsp:forward forwarding the requested processing to the next pageJsp:param pass parameters, used with other tags that support parametersJsp:include Dynamic introduction of a JSP interfaceJs
Instructions and considerations for invoking the JNI jar, invoking the third-party jar SDK and translating the instructions for the Android JAVA code V2015.6.10Reprint please indicate the source, otherwise dead family.Select "Copy link" to get the source.(* ************************************************ *)(* *)(* *)(* Design: love to eat pig head meat Flyin
First, the JSP compiler instruction is to inform the JSP engine the message, does not produce the output.3 compiler directives for JSP:Page: Instructions for the current pageInclude: An instruction that contains another pageTaglib: Used to define and access custom labelsCompile instruction format:the meaning of each property of the page directive:1.language: Declares the type of scripting language used by the current page, because the page is a JSP pa
1. General descriptionThis document is now perfect and accurate, anyway, try to refer to jscoverage documentation.1.1. IntroductionJscove is a tool used to display code coverage for JavaScript projects, which is inherited from Jscoverage and replaced with C++/spidermonkey Java/rhinoJscover the JavaScript, and then runs the post-insertion code in the browser, Jscover offers several options to perform:1, the simplest is the server mode, put the post-insertion code on the Web server2, another optio
Hive simple instructions for use, hive simple instructions for use
I usage:
Hive: Start hive
The command must end with a semicolon and tell hive to execute the command immediately, case insensitive.
Show tables; View tables
Desc tablename; view the columns in the table
Write SQL commands
Use udw;
Select user_id, action_id
From udw_ml_user_action
Where partition_date gt; = 20150410
Distribute b
SSDB basic instructions and usage, SSDB basic instructions
There are several reasons for using SSDB at that time. First, when designing the contest module, You need to query the Rank of the current competition multiple times because you click to query the Rank of the current competition, the amount of data queried each time is large. to efficiently obtain data, the SSDB database is used. The second aspect i
A to enter the 7-line command and Run Command e to modify the value from ~ 2000: F value, view the modified part
MoV ax, 2000; Save the number H to the Register ax
MoV SS, ax; Save the number 2000h in the register ax to the stack segment register SS
MoV sp, 10; Save the number 10 h to the stack address register sp
The initial stack top is, and the initial stack bottom is.
2. debug each line of Assembly commands in one step. After each command is debugged in one step, run the D command to view
stack is 2000:0010, mov sp, 10, after reading the information, we found that 10 Memory Spaces are reserved for the following registers, such as CS.
As for the interrupt mechanism written in the book, that is, every time debug uses t to execute the command, it will stop executing and display the status of each memory and the next operation. The above mov SS, 10 must have been executed, however, the next stack cannot completely restore the state of the memory in the previous step, so the value of
= 6462 H
Push [4]; SP = 00feh. The modified memory unit address is 2200: 00fe. The content is 3534 H.
Push [6]; SP = 00fch. The modified memory unit address is 2200: 00fc content is 3736 H.
Rewrite with the E command, and write with the command:
Result of one-step operation:
Data in the stack address:
(2) observe the experiment process shown in Figure 3.19 and analyze the cause ~ 2000: will the content in F change?
Figure 3.19 example of an experiment using debug
A: The use of
UE-9260 instructions for use 2, ue-9260 instructions for useGenerate an image
1. U-boot
Generate u-boot.bin files
(1) Makefile
Ifeq ($ (ARCH), arm)
CROSS_COMPILE =
Endif
Change
Ifeq ($ (ARCH), arm)
CROSS_COMPILE =/opt/crosstool/gcc-3.4.5-glibc-2.3.6/arm-softfloat-linux-gnu/bin/arm-softfloat-linux-gnu-
Endif
(2) makeV1.1.5
$ Make mrproper
$ Make at91sam9260ek_config
$ Make dep
$ Make
V1.3.4
$ Make distclea
Jsp learning notes: Action instructions, jsp learning notes instructions
Jsp: forward:
Statement 1:
Statement 2:
In statement 2,
Note: jsp: When forward specifies a page, jsp expressions can also be used, such:
Include:
Dynamically import a page in the same format as forward.
Differences from static import:
1. In servlet, static import integrates the two into a complete Servlet, while dynamic import
JSON. NET simple instructions, json.net simple instructions
NewtonJson is a commonly used json Parsing Library. Basically, this library is used in my project. It also has related libraries in Unity, which ensures the unification of multiple projects. At the same time, NewtonJson's serialization and deserialization interfaces are relatively simple and powerful. However, there are no pitfalls in use, so I wil
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