Re: [Gumstix-users] Programming Robostix

[mtd <mt...@ce...>]

Dave Hylands wrote:
> Hi Martin,
> 
>> I will tell it more generally. Linux is not an RTOS, so it cannot handle
>> the realtime tasks well. But with tje robostix, the realtime code can be
>> implemented inside the AVR.
> 
> Actually, that becomes less and less true with every version of the
> kernel. The latest version allows you set the relative priority of
> interrupts and its now possible for a thread to have a higher priority
> than an interrupt. Hmmm. This bears some further investigation.

AFAIK linux cannot guarrantee the response times, so it should not be 
considered as realtime os.

> I'm not sure quite sure what that means. To me, a VT100 terminal is a
> serial device, and the gumstix already supports this? Maybe you mean
> you're hooking up a keyboard to the robostix and having it look like a
> terminal to the gumstix - that would be neat.

Yes, I'm making a software (and a simple hw) to connect a 4x20 character 
display and a ps/2 keyboard to the robostix. Don't expect too much, the 
first version will be simplified variant of the vt100.

-- 
Martin Tomasek