How to achieve real time programming in .NET? Is there any additional framework available? How to stop a program from executing if the time has lapsed. so, if I say a code needs to finish by "1sec and 600 milisecond", how can I guarantee the timeline?
.Net is not for Hard Real time programing. But for very soft-Soft Real Time programming you can use .net Micro Edition.
I have no idea on this. I now only .Net Micro framework which works very fine with many Micro controllers and support is fine although not very good.
In short: You can not.
A bit longer: There are a number of issues if you want to use .NET for a real-time application. In general, "real time" means execution in predictable (and sufficiently short) time. .NET is not very predictable. The most important sources of non-predictability are it's JIT (run-time code generation) , the garbage collector, and the lack in real-time support of the underlying operating system.
However, there are an number of approaches to improve the real-time ability of .NET, e.g. using different GC or doing code transformation. Most approaches do not use the original .NET, but Rotor or Mono.
If soft real time is sufficient, there are a number of "tricks" you may use. E.g., starting with version 4.5 you may set the 'latency mode' to avoid overlong blocking by GC.
What will be the best platform to do real time programming. i am looking for open source platforms.
That really depends on what you want to archive. In general, you should think hardware and software together. E.g., for certain domains (e.g. signal processing), special microcontrollers may a proper choice while they will outperformed by standard hardware in other applications domains. Also, the selection of OS and programming language depends on your actual goals. There are lots of open source approaches for both.
TLDR: To give a proper answer, you should specifiy your needs.
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