Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.
I used to have two systems in my computer, XP and linux, using grub as bootloader, now I reinstalled the XP, and lost the grub during format the disk, I don't know how to get into the linux anymore.
can anybody tell me how to get into the linux system without reinstalling it.
verify failed at 0000h
check the manual of the software , some programming softare need a special "header" at the begining of your application program to verify, in that case you have to write some code there to tell programming software the basic info of you programe.
the ladder language use the sequence logic concept, that means one operation only happens strictly after another, the ladder just implements the real operation of the worker, that is also the reason that ladder originally invented for, easy for industrial engineer to implement who are more...
thanks for your advice, I think I didn't explain the problem clearly.
what I want to do is to program flash in circuit, also called in system programming, that is downloading program through the CAN bus form PC to target, and then the bootstrap in OTP which resides in the target system will...
now i am woking on a board with a 8051 compatiable macrocontroller, there are two memroy space, OTP for bootstarp and flash memory for code storage. for the first step, I need write a bootstrap for OTP, I have finished the communication part with host using CAN bus, my problem is how to write...
state machine function pointers
it is a good choice to replace switch case in a state machine using function pointer,
in the case that state machine has too many switch cases. it makes program more compact.
I am a newbie for embedded programming, now I am working on a board which has eprom and flash, the software in eprom has been done by someone else, there are only a bootloader for flash programming and command handler to switch to running in flash, it jumps to a fixed address in flash memory...
Re: touch panel
I think you can monitor PLC through touch panel whenever you want, actually "monitor" is the main function of touch panel, often instored in instrial field and make it easy to operate for worker. as to save data, I think touch panel is not a good solution, you may save some...
stl language in plc
the PLCs are originally designed for engineers in the industry, those people are more familiar with the production process than programming language, so the ladder programming language is better for them to understand and implement logic control, but now, besides logic...
Re: touch panel
I think Siemens has this kind of product meeting you requirements, I have ever used it, it is very easy and not expensive, I used it as GUI panel to moniotr the PLC which contorl some actuators
exceed is a x-terminal for windows systems, using exceed, you can connect to any UNIX/Linux system and run natively any UNIX application.
here is the documentation of the exceed:
Re: Help: how to return to the x-server (graphical interface
there are seven virtual text terminal provided by system, in GUI mode, just press CTRL+F1-7 to switch, in which F7 is default for GUI.
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.
