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howtos:software:rtai [2018/03/06 23:14 (UTC)] bifferos created |
howtos:software:rtai [2018/03/08 13:22 (UTC)] (current) bifferos [Example Program] |
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| ===== Introduction ===== | ===== Introduction ===== | ||
| - | RTAI is a system that allows your operating system to run so-called 'hard' realtime tasks. By 'hard' we mean that it isn't just 'best effort' it really will do | + | RTAI is a system that allows your Linux operating system to run so-called 'hard' realtime tasks. By 'hard' we mean that it isn't just 'best effort' it really will do |
| something regularly, to a schedule dictated by you, no matter how heavily loaded the system. RTAI comes in two parts: a set of patches for your kernel and a library you can link your programs against which allows them to become realtime tasks. It may feel like you're running your program under Linux just like any other normal user-mode program, however under the hood you are taking full control of the hardware, and any other processes will only run as the remaining CPU time permits. | something regularly, to a schedule dictated by you, no matter how heavily loaded the system. RTAI comes in two parts: a set of patches for your kernel and a library you can link your programs against which allows them to become realtime tasks. It may feel like you're running your program under Linux just like any other normal user-mode program, however under the hood you are taking full control of the hardware, and any other processes will only run as the remaining CPU time permits. | ||
| + | <note>The above is a gross over-simplification of what is actually happening and is simply a lay-person's introduction. Please investigate the RTAI documentation for discussion of things like jitter, latency and so on</note> | ||
| ===== Getting RTAI ===== | ===== Getting RTAI ===== | ||
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| clean:: | clean:: | ||
| - | $(RM) -f act *~ | + | $(RM) -f rtai-example *~ |
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| .PHONY: clean | .PHONY: clean | ||
| </code> | </code> | ||
| - | **TO BE CONTINUE....** | + | And here is the demo program, rtai-example.c: |
| + | <code> | ||
| + | TODO | ||
| + | </code> | ||
| ===== Dedication ===== | ===== Dedication ===== | ||
