| Author |
Message |
abhiraj11
Guest
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 Posted:
Mon Nov 28, 2005 5:15 pm Post subject:
RTOS porting |
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Hi,
Can any one tell me how to start porting a RTOS on ARM. I mean wha
exactly should i Study to port a RTOS.
Thank You.
Abhiraj |
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Boudewijn Dijkstra
Guest
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| Posted:
Mon Nov 28, 2005 5:15 pm Post subject:
Re: RTOS porting |
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"abhiraj11" <abhiraj11@yahoo.com> schreef in bericht
news:_ZOdnb1WGJYtZhfeRVn-iQ@giganews.com...
| Quote: | Hi,
Can any one tell me how to start porting a RTOS on ARM. I mean what
exactly should i Study to port a RTOS.
|
I'm not a porting expert, but I think I have a few useful clues for you:
- Make sure that it isn't already ported.
- Determine how portable the various parts of RTOS code are.
- Use as much as possible a high level language like C.
- Use a popular compiler/assembler/linker toolchain.
- Get a popular reference board, a popular JTAG debugger and a popular IDE
that supports your toolchain and debugger.
- Look at standalone sample IDE projects for ARM and for architectures that
you are familiar with.
- Look at RTOS sample IDE projects for ARM and for architectures that you are
familiar with.
- Look at other ports of the RTOS.
- Look at other RTOSes ported to ARM.
BTW, which RTOS are we talking about? |
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Dan Henry
Guest
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| Posted:
Tue Nov 29, 2005 12:36 am Post subject:
Re: RTOS porting |
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On Mon, 28 Nov 2005 18:09:09 +0100, "Boudewijn Dijkstra"
<usenet@bdijkstra.tmfweb.nl> wrote:
| Quote: | "abhiraj11" <abhiraj11@yahoo.com> schreef in bericht
news:_ZOdnb1WGJYtZhfeRVn-iQ@giganews.com...
Hi,
Can any one tell me how to start porting a RTOS on ARM. I mean what
exactly should i Study to port a RTOS.
I'm not a porting expert, but I think I have a few useful clues for you:
- Make sure that it isn't already ported.
- Determine how portable the various parts of RTOS code are.
- Use as much as possible a high level language like C.
- Use a popular compiler/assembler/linker toolchain.
- Get a popular reference board, a popular JTAG debugger and a popular IDE
that supports your toolchain and debugger.
- Look at standalone sample IDE projects for ARM and for architectures that
you are familiar with.
- Look at RTOS sample IDE projects for ARM and for architectures that you are
familiar with.
- Look at other ports of the RTOS.
- Look at other RTOSes ported to ARM.
BTW, which RTOS are we talking about?
|
Since some (small?) portion of the RTOS is likely to be written in
assembly language, study the ported-from architecture and its
instruction set(s) in addition to the same for the ARM.
--
Dan Henry |
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Richard
Guest
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| Posted:
Fri Dec 02, 2005 5:15 pm Post subject:
Re: RTOS porting |
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"abhiraj11" <abhiraj11@yahoo.com> wrote in message
news:_ZOdnb1WGJYtZhfeRVn-iQ@giganews.com...
| Quote: | Hi,
Can any one tell me how to start porting a RTOS on ARM. I mean what
exactly should i Study to port a RTOS.
Thank You.
Abhiraj
|
The FreeRTOS WEB site has reproduced a report written by two students that
details their porting efforts. Take a look at the ColdFire port pages, also
the "How FreeRTOS Works" might be of interest. URL in signature below.
Regards,
Richard.
http://www.FreeRTOS.org |
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Jim
Guest
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| Posted:
Sat Dec 10, 2005 1:15 am Post subject:
Re: RTOS porting |
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Your development board should come with startup assembler code for
getting RAM, etc. to work. And your compiler vender should give you
the rest to get a c/c++ environment up & running. I always get a small
c/c++ program up & running first. Then, I port the RTOS. Note, each
RTOS has it's own porting guide.
If you lack experience with an RTOS, you might find the book
MicroC/OS-II by Labrosse helpful. It's a real small RTOS and I'm sure
it's been ported to arm.
Jim |
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