Does the Propeller require a RTOS

LoopyByteloose

It seems that the Propeller in hardware and firmware provides the equivalent of a Real Time OS with 8 slots (the cogs of course). Would you all agree with that or does the Propeller need one?

▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
Ain't gadetry a wonderful thing?

aka G. Herzog [noparse][[/noparse] 黃鶴 ] in Taiwan

StefanL38

no - a operating systems provides functions like load and save files, start and stop tasks etc.

you can do this with the prop but you need more than just the cogs and the spin-compiler ITSELF for that
best regards

Stefan

mctrivia

i disagree. an RTOS is not needed. the cogs give you start, and stop tasks. which is the bigest help that an rtos gives you with single core micros. load and save files really is not necessary and can be very easily done with the addition of fsrw object.

▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
propmod_us and propmod_1x1 are in stock. Only $30. PCB available for $5

Want to make projects and have Gadget Gangster sell them for you? propmod-us_ps_sd and propmod-1x1 are now available for use in your Gadget Gangster Projects.

Need to upload large images or movies for use in the forum. you can do so at uploader.propmodule.com for free.

Phil Pilgrim (PhiPi)

No, an RTOS is not needed. Without interrupts, preemptive task-switching would be nearly impossible to implement anyway. OTOH, within individual cogs, cooperative multitasking (i.e. coroutines) is a cinch to implement using the JMPRET instruction.

-Phil

LoopyByteloose

RTOS don't really need files. In fact, controlling electro-mechanical devices may really get bogged down by having such a large, high overhead system.

RTOS manage timing in a deterministic fashion (at least 'hard' RTOS do).· The primary feature is that multiple tasks are done.

▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
Ain't gadetry a wonderful thing?

aka G. Herzog [noparse][[/noparse] 黃鶴 ] in Taiwan

Post Edited (Loopy Byteloose) : 10/24/2009 6:00:38 AM GMT