On Friday 21 November 2008, Roberto Caminiti wrote: >Hi everybody, >I see that the newest hardware with frequency tuning and with many >advanced features not always give the best performances in terms of >latency, used with an RTOS. >So now I will ask you... >Are there on the market a special hardware designed to be used in >Real Time environment? Where? >So I think that this hardware is minimal, so I need only: >- VGA >- one or two PCI slot (for mesa cards) >- Serial ports and/or parallel ports >- One or two USB >- LAN >And so without advanced features like bluetooth, wi-fi, HDMI, audio, etc...
The observations I can make are 1. onboard video is generally a bad thing for realtime, particularly if it shares the mainboard memory. It doesn't want to give access back to the cpu unless threatened. And 2. having a storage device, like a usb key or similar, plugged into a usb port, also mungs the realtime stuff because of the device scans being performed to see if its still there at frequent intervals. There may be others, one of which could be a mainboard std voltage of 3.3 volts rather than 5. The 3.3 volt parport setups seem to be pretty picky about who they talk to. >Thank you! >Roberto > >------------------------------------------------------------------------- >This SF.Net email is sponsored by the Moblin Your Move Developer's challenge >Build the coolest Linux based applications with Moblin SDK & win great > prizes Grand prize is a trip for two to an Open Source event anywhere in > the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ >_______________________________________________ >Emc-users mailing list >[email protected] >https://lists.sourceforge.net/lists/listinfo/emc-users -- Cheers, Gene "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) Windows: Microsoft's tax on computer illiterates. ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
