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wh
Joined: 10 May 2004
Posts: 17
Helped: 1
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 10 May 2004 7:32 Which RTOS is best for me |
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I wish to design a board for Cybot. www.realrobots.com
Among many of free RTOS out there, which one do you think is best suit my requirement?
Target uC: PIC18F452 or Maybe dsPIC.
Tasks: RF comm, IR comm, PWM to motor, sensor to read various information: speed, distance travel, and I plan to add a digital compas.
Well I'm not very familiar in RTOS, so I prefer a well documented RTOS. Can anyone point me please.
Thanks in advance.
wh
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dizel
Joined: 16 Apr 2004
Posts: 27
Helped: 1
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| 11 May 2004 11:50 Re: Which RTOS is best for me |
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| If PIC18F452 is member of PIC18XX family you must check out UCOS II. It is 'simply to start' OS. PIC18 port can be found at micricum site http://www.ucos-ii.com/ and UCOS-II sources can be found in Electroda forums (someone post it here).
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dev
Joined: 26 Feb 2004
Posts: 26
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| 12 May 2004 10:02 Re: Which RTOS is best for me |
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hope ucos-ii suits you.U can work with some examples and many are familiaar with its projects.
hope u find it suitable
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devennan
Joined: 07 May 2004
Posts: 70
Helped: 4
Location: India
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| 13 May 2004 21:36 Re: Which RTOS is best for me |
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I depends that what kind of memory you would be having and also what is your current skills
are you good with windows programing go for WINCE
Personal suggestion is linux (RT) it is free to download from www.fsm.com
vxworks i would not suggest as it is expensive it needs processor dose not run on controller as you are
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wh
Joined: 10 May 2004
Posts: 17
Helped: 1
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| 14 May 2004 10:36 Re: Which RTOS is best for me |
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Thank you very much to all replies.
I decide to have a look at uC/OS-II first.
Well it can be say to be started very well since I could get version 2.52 of uC/OS-II and get a clean compiling without any error. I think this was the version used by the author of PIC port.
Anyway I have some problem when I tried v2.60
When I tried to compile with uC/OS-II v2.60, I get the following error messages.
| Quote: |
D:\SOFTWARE\uCOS-II\PIC18\MPLAB-C18\WORK\software\ucos-ii\source\os_task.c:292:Warning [2058] call of function without prototype
D:\SOFTWARE\uCOS-II\PIC18\MPLAB-C18\WORK\software\ucos-ii\source\os_task.c:933:Error [1109] type mismatch in redeclaration of 'OS_TaskStkClr'
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It seems like some definition of function changes have been done in v2.60. I wish to know the history of uC/OS-II changes. But there are very less information at http://www.ucos-ii.com/
Any idea where I could find the information that I need? I appreciate any pointer to me.
Thanks & regards,
wh
[/quote]
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Dspnut
Joined: 18 Jul 2002
Posts: 171
Helped: 4
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| 14 May 2004 11:42 Which RTOS is best for me |
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Hi there
Why don't you give Salvo RTOS a try?? This RTOS is well documented.
http://www.htsoft.com/products/rtos.php
Cheer 
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jhonny_yang
Joined: 08 Mar 2002
Posts: 140
Helped: 1
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| 14 May 2004 15:24 Re: Which RTOS is best for me |
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| Dspnut wrote: |
Hi there
Why don't you give Salvo RTOS a try?? This RTOS is well documented.
http://www.htsoft.com/products/rtos.php
Cheer |
Qnx is good
QT is cool
Nucleus is stable and expensive
UCos II -> free and support much platform
eCos -> good and small
Rt-Linux -> Cool but quite large as RTOS
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mountain
Joined: 22 May 2004
Posts: 49
Helped: 1
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| 22 May 2004 17:05 Re: Which RTOS is best for me |
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| Yes, It is depend on the size of your memory. maybe, uITRON is the suit. It can cut to what you want.
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jhonny_yang
Joined: 08 Mar 2002
Posts: 140
Helped: 1
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| 25 May 2004 17:28 Re: Which RTOS is best for me |
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| mountain wrote: |
| Yes, It is depend on the size of your memory. maybe, uITRON is the suit. It can cut to what you want. |
uITRON based on Nucleus develop and much use in Japan.
but the architecture is not open. and much documentation in Japanese language.
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treebear
Joined: 06 Aug 2001
Posts: 134
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| 16 Jun 2004 14:08 Re: Which RTOS is best for me |
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| What do you think about VxWorks? Maybe you could try it.
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BertrandR
Joined: 28 Jun 2004
Posts: 37
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| 28 Jun 2004 20:57 Re: Which RTOS is best for me |
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You have also the full preemptive kernel PICos18 well-suited for the PIC18 (optimize for this target!)
it is a GPL kernel.
Check at www.picos18.com and the forum at www.picso18.com\forum .
Bertrand
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tom12sg
Joined: 01 Feb 2004
Posts: 39
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| 29 Jun 2004 5:54 Re: Which RTOS is best for me |
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Hi,
Anyone know where can I download the OS source for uITRON? I have a book talk on its specification but don't have its source code.
Thanks.
Regards,
Tom
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dainis
Joined: 15 May 2001
Posts: 1453
Helped: 56
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| 29 Jun 2004 12:05 Re: Which RTOS is best for me |
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| tom12sg wrote: |
Hi,
Anyone know where can I download the OS source for uITRON? I have a book talk on its specification but don't have its source code.
Thanks.
Regards,
Tom |
I thinking that uITRON, not OS, but OS interface specification ....
http://www.rtems.com/
Standards Compliant
POSIX 1003.1b API including threads
RTEID/ORKID based Classic API (similar to pSOS+)
TCP/IP including BSD Sockets
uITRON 3.0 API
GNU Toolset Supports Multiple Language Standards
ISO/ANSI C
ISO/ANSI C++ including Standard Template Library
Ada95 with GNAT/RTEMS
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