Drobe :: The archives
About Drobe | Contact | RSS | Twitter | Tech docs | Downloads | BBC Micro

Confirm comment report request

In reply to Jwoody: I indeed have an other view on using Linux on an embedded ARM system, maybe because I use it.

For me, the most important thing is control. I want to have control over the system. I/O block: don't need it. You can just as easy write a simple loop to check things without blocking and you have more control over it. Debugging is simpler too. Multitasking is a pain. I know when my tasks can wait some time and don't want the OS to decide it. Getting a system to run at it's maximum speed is easier on RISC OS. But the most annoying thing is writing device drivers. In RISC OS I normally write a module in assemble but you can use C to. You can use most of the features of the OS using swi's. Using Linux you write a kernel module. You can only use a restricted subset of OS calls and the most annoying thing is the memory protection. You can not easily access user memory from a kernel module and kernel memory from user space. And you have to link it to the kernel which takes a lot more time.

All the unix features like multitasking, virtual memory, blocking I/O are great on a multi user system running different tasks but on an embedded system I'll have RISC OS any day.

Peter V

 is a RISC OS UserPeter on 01/08/07 09:42AM
[ Reply | Permalink | Report ]

Click on the button below to confirm you wish to flag up this comment to the website's administrators. Abuse of this service will be frowned upon and it should only be used to notify us of comments that are extremely distasteful, indecent or otherwise unlawful. If you disagree with an opinion expressed or fact stated in a comment, please take part in the debate rather than expect it to be removed.

Return to the drobe.co.uk front page

Details

Reporting user / IP: / 54.226.73.255
Comment GID: 24959
Timestamp: Sun, 21 Apr 2019 16:16:16 +0000

Search the archives

Today's featured article

  • South East 2006 show report
    News, presentations, new mags, photos, gossip and more
     97 comments, latest by flypig on 27/10/06 01:47AM. Published: 21 Oct 2006

  • Random article

  • MSN to lock out unauthorised clients from October
    MS asking for licenses, so alternatives?
     24 comments, latest by mavhc on 6/9/03 6:03PM. Published: 31 Aug 2003

  • Useful links

    News and media:
    IconbarMyRISCOSArcSiteRISCOScodeANSC.S.A.AnnounceArchiveQercusRiscWorldDrag'n'DropGAG-News

    Top developers:
    RISCOS LtdRISC OS OpenMW SoftwareR-CompAdvantage SixVirtualAcorn

    Dealers:
    CJE MicrosAPDLCastlea4X-AmpleLiquid SiliconWebmonster

    Usergroups:
    WROCCRONENKACCIRUGSASAUGROUGOLRONWUGMUGWAUGGAGRISCOS.be

    Useful:
    RISCOS.org.ukRISCOS.orgRISCOS.infoFilebaseChris Why's Acorn/RISC OS collectionNetSurf

    Non-RISC OS:
    The RegisterThe InquirerApple InsiderBBC NewsSky NewsGoogle Newsxkcddiodesign


    © 1999-2009 The Drobe Team. Some rights reserved, click here for more information
    Powered by MiniDrobeCMS, based on J4U | Statistics
    "The original entry in the guide described VA_RPC as ARMless, now it's been updated to Mostly Harmless"
    Page generated in 0.086 seconds.