I'm trying to program a software similar to this
Where could I find specific information on the programming language used, the required environment, etc?
Thanks.
If you have some money to spend, check out the PCAN-USB device. Using this device you can write your own program using their API, which is supported on most major languages, or getting a license for their PCAN-Explorer software whichever you prefer. I believe versions 5.4 and up have a J1939 plugin that you can get.
You can use different hardware devices and create your code in visual studio or other vendor applications such as CANoe or CANAlyzer.
Hardware:
PCAN
Kvazer
IXXAT USB-to-CAN FD
CANcase
VN1610
or create your own CAN to USB gateway design.
All the available hardware supports different development platforms so it will depends on how much time/money you want to expend.
If you are using the Vector CAN interfaces as the hardware, I suggest you review the Vector XL API, which you can use for free. Vector XL API is primarily intended to be used with the C# programming language.
Related
I'm interested is it possible to install and use Android Things(former Brillo) on custom produced hardware?
I can see from the official documentation there is preselected and certified SoMs listed, but I'm interested in using my own hardware.
Is it possible to have best of both worlds - use the familiar to me Android & Android Things but run it on proprietary hardware?
If not, what other options do I have - I researched about micropython, but apparently it seems it also comes with designated board(pyboard).
So my question is what are options to not thinks too much about the firmware on the device(and write C code), but focus on more higher-level business logic and programming languages(Java, Python).
Android Things isn't open source, so you can't put it into that isn't officially supported.
If you're looking for custom options, you will need to find a compiled language like C that works for that board. While C may be a bit intimidating, you may be able to find languages that compile to similar machine code. Rust and Go may work on microcontrollers too if you check.
I'm not too familiar with micro python. It says that it compiles to bare metal/machine code, so I believe you should be able to use it on other boards. While they may officially support the compiler for one board, the community may have support for additional microcontrollers.
I'm doing a small project in IoT .I'm using ARDUINO microcontroller(with temperature sensor)to sense the temperature value.Now i need to get those value into JDE(i.e..into IoT Orchestrator).How do i get those values into JDE?
Thanks!
Vasanth Kumar, iot integration is very new to everyone as well as oracle has also released some of the android apps recently. Please check some of the apps from oracle jdedwards in play store.
I used to study the oriely's book internet of things. I think programming the iot devices requires the assembly language background knowledge but c the high level language with a visual c++ editor should be included With jde installation as common language between jde and the microcontroller device. BSSV is used for mail transactions and practice BSSV for the message exchange between the microcontroller application amd the JDE, use this mail data to update the required tables. There are n number of devices so it is advised to you to make the protocols and programming by yourself.
Please update me if you have progressed in any particular direction and share with me as we both are in same new boat.
When a manufacturer designs a hardware device, they obviously have someone who is in charge of writing a driver for that device for different platforms.
While I know that there are probably more than one "type" of driver for different types of devices, a driver for a device by it's nature must be very different from a normal application or script.
I've always wanted to pick apart a driver just to find out how it allows an OS to interface with hardware, but my programming knowledge is lacking.
Out of curiosity, I'd just like to know:
How does a device driver work, exactly?
When designing a driver for a device, what things do programmers consider?
What languages are drivers written in?
What is the overall process for designing a driver?
I suggest that you read (at lease the first chapter) "Linux Device Drivers". It will answer your basic questions and will allow you to study how to develop device drivers for Linux OS if you want to.
You can find it here: http://lwn.net/Kernel/LDD3/
When designing a device driver, programmers look at the functionalities of the device that are to be implemented and write the driver accordingly
I prefer C / C++ for writing a device driver
but have seen driver in assembly language also
overall process is dependent on device itself
If I was told I needed to create a driver for some product (say, a game controller), how would I go about creating one? Is this something you could do normally in C/C++?
And what about firmware for external deviced connect to USB? How is this created usually? Is this also done in C/C++, or some lower level language?
Thanks!
Device drivers for desktop computer operating systems are generally written in either C or C++. The operating system you would target will have some form of framework or device driver development environment. Often these development kits can be obtained free of charge.
There are books available for Windows, Linux, and MacOS X (and others) that detail the process of creating a device driver.
If your driver is related to a device on a specific hardware bus (PCI, PCI-X, USB, SCSI, SATA, etc.) you can also get books on that specific technology. An understanding of that hardware system can greatly facilitate the design of your driver.
Another good resource is the open source code for similar devices to yours. You can obtain that from the Linux kernel source or FreeBSD source and study how certain aspects of your type of device are implemented.
EDIT: I nearly forgot to mention that you will also need data sheets, schematics, and/or theory of operation information about the device itself.
I'll add to Amardeep's good answer with the following books that will help you think about the context device drivers operate in, and how they're structured:
Linux:
http://www.amazon.com/Understanding-Linux-Kernel-Third-Daniel/dp/0596005652
Windows:
http://www.amazon.com/Programming-Microsoft-Windows-Driver-Model/dp/0735618038/ref=sr_1_1?ie=UTF8&s=books&qid=1277439434&sr=1-1
Mac OS:
http://www.amazon.com/Mac-OS-Internals-Systems-Approach/dp/0321278542/ref=sr_1_1?ie=UTF8&s=books&qid=1277439467&sr=1-1
You do it in any language that can talk to the interface. If it requires poking ports or addresses directly then you use assembly or C. If there's a higher-level interface such as libusb then you can use almost any language you like.
Every indication I have, based on my experience in embedded computing is that doing something like this would require expensive equipment to get access to the platform (ICE debuggers, JTAG probes, I2C programmers, etc, etc), but I've always wondered if some ambitious hacker out there has found a way to load native code on a Blackberry device. Anyone?
Edit: I'm aware of the published SDK and it's attendant restrictions. I'm curious if anyone has attempted to get around them, and if so, how far they got.
I've seen this question pop up in a number of different forums over time. The original Blackberries were programmable in C++ but I think that RIM ran up against the problems of trying to implement a secure platform in the C/C++ compile to native paradigm.
The devices do have JTAG ports, but unless one could get hands on the RIM code as a place to start the problem is enormous.
I also have to wonder how useful a Blackberry with a replacement FOSS operating system would be, since it would not likely have the protocols to connect to BES or BIS, send PIN's etc. If one was simply looking for a the power of the hand held computing platform I suspect there are many more likely candidates available.
No, C++ is no longer a supported RIM development tool, as they phased it out a number of years ago. Client applications can be developed in Java (or one of a few 5GL frameworks), and web + sever-side apps can be developed using standard tools.
For those looking for updated information, the new Playbook os, also known as QNX, also known as Blackberry 10 (or it will be when the phones running it come out) is in fact c/c++ based, also using QML and a C++ add on called Cascades.
Unfortunately the official SDK website only seems to mention Java. According to wikipedia, different versions of the BlackBerry use different processors. Combined with the fact that RIM uses a proprietary operating system for the devices, it becomes pretty difficult to develop native code without official tools. There is also a partial API-level security restriction which would further prohibit advanced tinkering.
Just randomly searching for an answer to this and came across http://supportforums.blackberry.com/t5/Tablet-OS-SDK-for-Adobe-AIR/Native-C-C-SDK/td-p/778009 which mentions that BB intend to release a C/C++ SDK soon, more details will be provided at the 2011 Game Developer Conference.