Steve
This may not be the answer you want but...
I have identified the tasks that would run under RT Linux or Linux
I may easily stand corrected ...
Anyone else care to add comments ???
Embedded Linux currently needs approx 4/8M ram 2M Flash
> Our company is currently looking at many different RTOS and EOS for our
> embedded system. We are using 80486 processor on a PC104 card.
>
> We need to know the following information about RT Linux so we can make our
> judgement call on which operating system we choose early in July
>
> Here are some of the criteria :-
>
> FTP Support (Server) ? Linux
> SMB Support (Server) ? Linux
> PPP Serial Access (Server) ? Linux ( RT possible with work )
> Ethernet Card Driver Support (NE2000) ? Linux ( RT Possible work in progress )
> Multi Threaded OS ? Both
> Multi Threading debug support at source code and assembly levels ? Both
> Debug sessions controlled via serial, parallel or ethernet to a remote PC ? Both
> Thread priority control ? Both
> Thread switch Times ? Linux 5-50mS RTLIUNX 5-50uS
> Dynamic thread creation times ? Linux fast RTLINUX ( not possible Yet )
> WIN 32 API compliant/compatable or simmilar under different syntax ? Forgetit
> Sleep accuracies to 1ms ? down to 4-5 nS
> Wait for single events ? Both
> wait for multiple events ? Both
> thread synchronisation controls ? Semaphores .. Both
> Timers available to 1us resolution ? Yes
> Interrupt handling support ? Both
> What prossessor support is there ? 486/586
> VGA driver support ? Linux ( RT possible with some ( not much ) work )
> UART driver support ? Both
> Keyboard driver support AT and XT ? Linux ( RT Possible with work )
> Support for customer provided devices ? Both
> supports C++ ? Both
> Templates ? Linux ( RT Possible )
> C++ exceptions ? Dunno
> IOStreams ? Linux ( RT Possible I think )
> Namespaces ? dunno
> Jave virtual Machine ? Linux , ( RT Linux not yet some work in progress )
> COM, DECOM, CORBA ? CORBA Linux, COM DECOM not yet
> File systems supported ? Linux Many RTLinux .. work in progress
> Operation System image size ? Linux 500K - 1.5 M
> Worst case interrupt latency times ? Linux 150mS RTLinux 50uS
> 64 bit integer arithmetic support ? both
> Licensing and Run Time Licensing costs ? 0
> OS Must be configurable.i.e we can choose which bits be want in it ? yes
> TCP/IP is socket based ? yes
>
regards
Phil Wilshire
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For more information on Real-Time Linux see:
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