I have recently purchased the ATiny84 microcontroller and I was wondering if I could upload code to it from my Macbook Pro that runs snowleopard. Specifically, could I run c files and FreeRTOS?
As H2CO3 suggest you can use avr-gcc and avrdude but I hope you're familiar with C/copiling/setting up path variables in osx.
If you're only getting started with embedded programming I recommend having a look at the Arduino project. It's very easy to get started. Also, for your particular chip(ATiny 84) have a look at this guide from MIT:
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How to build raspberry pi cluster environment with Android Things.
I have seen couple of posts on various sites/forums, that we can be able to build clustered environment with Raspberry Pi and Raspbian OS via network switch card using Ethernet Cable.
It is possible to build same thing in Android Things. If it is not, is there any another way?
What is LowWPAN with Android Things.
Link for reference, for RPi Clustered Env
It's hard to apply for Android things, but after thinking of it's, the hardware is the same, and the operation of Android is base on a Linux. You may even try all of this just like a Linux things.
An Android doesn't have a terminal for installing the Linux apps or compiled a program. But you can install an Android terminal emulator like Term*x for installing, configuring your network, or compiling a program.
Maybe Android can't have a same result like a Linux OS or it can be anything like what you want.
Back to Android, I think that's the one I was looking for a program to have a different result, and Android UI is created for anyone who wants to help their own lives with a smart phone.
So simple to use for anyone who doesn't know about computer things.
I am getting started with coding for HID devices. I got started with reading Apple documents and sample code. The code provided are terribly outdated that it doesn't even open in Xcode8.
Download Sample Code from Apple
I need help in finding a sample project / snippet for getting started with HID Services! Open a handle, read and write reports to device, Listen to reports generated by device in a run loop.
OS X/macOS's HID stack is called IOHIDFamily, and much of it is open source. This includes kernel and userspace components. You can find the code for various different OS X/macOS releases at
https://opensource.apple.com/
For 10.12.2 (latest code released at time of writing) you can browse the IOHIDFamily code here:
https://opensource.apple.com/source/IOHIDFamily/IOHIDFamily-870.31.1/
or download it as a zip file here:
https://opensource.apple.com/tarballs/IOHIDFamily/IOHIDFamily-870.31.1.tar.gz
The "tools" directory contains some userspace sample/test code which might help with what you're trying to do.
As for sample code not being updated, documentation being incomplete/outdated/missing, and provided code requiring a lot of effort to build: welcome to Mac systems & driver development. That's unfortunately how it is. I've been doing OS X kernel/driver work for 7 years, and while some things get easier with experience, downloading code from Apple and building it still feels like playing the lottery.
Is it possible to develop cross-platform application on Windows and can also compile for Mac OS X from Windows? I have checked Qt but that requires one to compile from Mac using Xcode.
If this is your priority then one option would be Java as at least a jar file built on one platform can be run on another.
If however you're talking about C or C++...
If you are creating a small command line tool then you might be able to make this work with gcc and a cross compiler, but I think it would be a lot of work.
If however you are wanting to create a GUI application I would urge you to give up now. There are so many issues - you'd have to use Carbon or Cocoa APIs which you can't build for on any other platform, you'd have to link against frameworks which won't exist on your compilation host, you won't be able to easily generate .plist files. Qt won't help as you need to be able to build it, which relies on these same frameworks.
In short, there's no alternative to building on an actual mac.
Furthermore, when it comes to fixing bugs, you will absolutely have to do this on a mac (either physical or virtual).
From what I know , in general you do need a mac to make the executable , even for a simple ansi c program you need gcc for mac.
You can create MacPorts Portfile.(If your application is open source)
A MacPorts port is a set of specifications contained in a Portfile
that defines an application, its characteristics, and any files or
special instructions required to install it. This allows you to use a
single command to tell MacPorts to automatically download, compile,
and install applications and libraries.
Take a look at IMCROSS.
IMCROSS is a simple, scripted method of installing cross-compilers and
cross-compiled libraries on a Linux (or possibly other *nix) system,
so that you can develop programs targeted to run on Microsoft Windows
and Mac OS X at the same time and in the same environment as you
develop Linux versions of those programs.
You can certainly do this using Real Studio. It can create Mac OS X applications on Windows without any trouble.
It cross-compiles for Windows, OS X and Linux. And it does it from any platform. It also can create web apps.
Sounds like you should check it out.
I have done a little work on lazarus' free pascal. So when a client asked me to write an application for a mac, after the initial, "it can't be done" stage. (followed by an asp.net maybe stage) i thought about writing it using lazarus.
Question is. I have only a virtual machine running mac OSX, this means that i do not really want to develop on the mac. However, i just cannot seem to get the applications that i have written in lazarus on windows to work on the mac. I have tried the deployment using the Lazarus Wiki and the MACOS folder is empty and so when i put it on the mac it doesn't run the application.
What is the best way of doing this or am i barking up the wrong tree?
It seems you want to do cross-compiling, which is theoretically possible, but may not be practical, for the reasons mentioned by Marco above.
As an alternative, you could install XCode, FreePascal, and Lazarus on a MacOX machine. You could still do your development and some testing on Windows/Linux. When you hit a certain milestone, you can copy your source code to the Mac and compile your application to test and give to the user.
Even if it were possible to easily cross-compile, there some minor differences between platforms, so (especially if it's a GUI app), you would want to test it on an actual MacOS box before giving it to the client.
I've taken the route described by Noah - and I was incredibly surprised that after about three weeks development on Windows, it took about 10 minutes to get the application running on the Mac.
My route was to install Xcode 4.3 on an old Mac Mini running snow leopard, then install Lazarus using the fink version as described here. This took a while but was done in an evening.
Then I just copied my folder across to the Mac, opened the lpi on the Mac, compiled it. It failed so I removed a windows references, recompiled, and it was working. I was truly amazed.
What linker and assembler do you use to generate binaries? To my best knowledge the linker for recent OS X versions is not available in source.
Afaik what you want (crosscompiling to Mac) is not possible for recent versions (and I've done it for PowerPC myself in the past).
The easiest is to use the Unix "file" command on the binary to see what is generated, and make sure it reads something with "MachO" in it. Easiest is if you have a Linux install (where this command is pretty standard), but versions can be found for windows too (cygwin, mingw and 3rd party)
I recently started creating applications for mobile devices and have successfully completed an application for the iPhone. I am now turning my attention to the Blackberry but haven't been able to find a convincing article or website that states that it can be done or a tutorial on how to do so. Can Blackberry apps be developed on Mac OS X? If yes, how do I go about doing so? Can anyone please point me in the right direction as I only have access to a Mac and really want to get this project on the road. Thanks in advance for your help.
UPDATE:
RIM has released a MacOS Eclipse plug-in for Blackberry Development: http://na.blackberry.com/eng/developers/javaappdev/macosx.jsp
While there is no built-in simulator, the plug-in DOES support USB tethered device debugging for the Torch 9800 handhelds. I plan to get one; they are ~$499 w/no contract. With a Torch and the new plug-in, Blackberry development is possible without using a VM. (Finally!)
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Building on MacOS works well once you set it up. I've had less luck with the simulator. On the whole though, being able to run Eclipse natively in MacOS and flip to a Windows VM only for debugging is a big win in my book.
You can get a MacOS version of preverify (see link below for details). I do my development with Eclipse on MacOS X and use Ant to build BB apps.
This blog is excellent and has many of the details to get you started:
http://www.azizuysal.com/2009/07/blackberry-development-on-mac-os-x.html (original link is dead. The "wayback machine" provides us with the original text content, but images and styling are lost to the sands of time. Still worth a read.)
The tricky part is getting the simulator to work. There is a Wine-based work-around, but on my computer, while the simulator was able to run under Wine, the LCD output was scrambled.
Currently, I build COD files from Mac, and my Ant build process drops them into a directory that is shared with a WinXP VM. I can run the simulator stand-alone in this VM. Debugging is also possible by installing Eclipse inside WinXP and pointing the debug configuration it at the source directories.
I've actually got a bit more magic. I enabled some of the Java 1.5 features by compiling against 1.5 and then translating the bytecode to 1.3 prior to the preverify script. (Blackberry only speaks a barbaric 1.3 java, flashback to circa 1992). It's not a silver bullet as some features still don't work, but it does cut down on the need to make everything an untyped Object reference.
Lately, I've been working on a x-platform framework to allow me to write app code once and build against both Android and Blackberry (both are Java). The Android part was easy. It's just a bitch to debug anything in Blackberry. Someone working at RIM decided that Blackberry didn't need to keep Exception stack traces unless there was a catch(Throwable), and then they could do something bizarre, non-standard, and undocumented (catching Throwable behaves weird). I've only kinda-sorta figured out a hack to get stack traces using JavaLoader.exe without breaking into the debugger, and it's barely worth it.
p.s., I now do x-platform development with a single code-base targeting Android, Blackberry, and Desktop. Desktop is great for testing app functionality, with very little Blackberry on-device testing needed once features work in the desktop 'simulator' (a Swing GUI built for debugging our games).
Even though certain components of the RIM development platform are java-based, such as the JDE - other components such as the preverifier and device simulators are implemented as native Windows executables.
Basically, the easiest way to do it is to install Windows on your Mac using Bootcamp or Parallels and run inside a real Windows environment on your Mac.
However, there are other "hackier" ways to do it using Wine, MacPorts, and a number of other tools - as an example see this blog post