"Paul Burke" <paul@scazon.com> wrote in message
news:5bfk85F2stoa8U1@mid.individual.net...
> Rohan wrote:
>> Now will the generated elf file will sit in my processor and
>> be accessibly to the VxWorks OS like it is in windows??
>>
>
> I (blush) have to admit that I've never used VxWorks, I expect I'm the
> only subscriber here who hasn't. But if it's anything like other
> RTOSses you compile your application along with the OS, producing a
> single ELF (or whatever format) file that you then load into the
> target device's memory. Any filing system available is normally only
> used for data files.
I believe it may be possible to load your code into memory at a certain
location and have the OS jump to it when required but this is only a
guess based on how it appeared to work when I had a brief encounter with
VxWorks some time ago. Of course, this requires that VxWorks already be
loaded.
I do know that the LogicLoader OS that comes with LogicPD's development
kits allows an elf to be uploaded serially or via ethernet (or JTAG too)
and that the program can be started from the OS in a windowsish style
(more DOS really). I believe the OS is based around uCos but I don't
know for sure.
I think the OP is standing at the bottom of a steep learning curve but
one probably less steep than trying to bring up a new processor from
scratch. I'm sure Lewin has written a book about about this sort of
thing - it does seem to be rather up his street ;-)
Reply by Paul Burke●May 22, 20072007-05-22
Rohan wrote:
> Now will the generated elf file will sit in my processor and
> be accessibly to the VxWorks OS like it is in windows??
>
I (blush) have to admit that I've never used VxWorks, I expect I'm the
only subscriber here who hasn't. But if it's anything like other RTOSses
you compile your application along with the OS, producing a single ELF
(or whatever format) file that you then load into the target device's
memory. Any filing system available is normally only used for data files.
Paul Burke
Reply by Rohan●May 22, 20072007-05-22
My doubt number 2 (sorry for sounding so stupid as its very new to me)
if I am able to write some code using C on some IDE with gcc as the
compiler. Now will the generated elf file will sit in my processor and
be accessibly to the VxWorks OS like it is in windows??
On May 21, 10:42 pm, Grant Edwards <gra...@visi.com> wrote:
> On 2007-05-21, Tom Lucas <news@REMOVE_tlcs_THIS_dot_TO_fsnet_REPLY_dot_co.uk> wrote:
>
>
>
> >>>> I have a set of library files and include files etc which came
> >>>> with the device. It needs an elf file instead of the regular
> >>>> exe as executable.
>
> >>>> which compiler should I used to generate that elf file.
>
> >>> Google for "ARM compilers" and you'll find lots. Some are free
> >>> such - gcc - and others cost a lot - Greenhills, IAR etc.
> >>> There are some in the middle which are not free but are much
> >>> cheaper than the dear ones - Rowley.
>
> >> The last I knew, the ARM compiler that Rowley sells is gcc.
>
> > I realise that the underlying compiler is still gcc but I
> > would say that from the OP's point of view they would appear
> > to be two different beasts. From the questions the OP asked
> > one can infer that he is not overly familiar with the linker
> > end of the build process and is likely to assume that the IDE
> > _is_ the compiler.
>
> The IDE (including the debugger) are Rowley's -- I hope nobody
> thought I was implying they weren't or that Rowley was doing
> anything wrong. If you want an IDE (particulary if you want
> Linux support), Rowley is the first place I'd look.
>
> The fact that the compiler itself is open-source is a real
> bonus.
>
> --
> Grant Edwards grante Yow! What's the MATTER
> at Sid? ... Is your BEVERAGE
> visi.com unsatisfactory?
Reply by Grant Edwards●May 21, 20072007-05-21
On 2007-05-21, Tom Lucas <news@REMOVE_tlcs_THIS_dot_TO_fsnet_REPLY_dot_co.uk> wrote:
>>>> I have a set of library files and include files etc which came
>>>> with the device. It needs an elf file instead of the regular
>>>> exe as executable.
>>>>
>>>> which compiler should I used to generate that elf file.
>>>
>>> Google for "ARM compilers" and you'll find lots. Some are free
>>> such - gcc - and others cost a lot - Greenhills, IAR etc.
>>> There are some in the middle which are not free but are much
>>> cheaper than the dear ones - Rowley.
>>
>> The last I knew, the ARM compiler that Rowley sells is gcc.
>
> I realise that the underlying compiler is still gcc but I
> would say that from the OP's point of view they would appear
> to be two different beasts. From the questions the OP asked
> one can infer that he is not overly familiar with the linker
> end of the build process and is likely to assume that the IDE
> _is_ the compiler.
The IDE (including the debugger) are Rowley's -- I hope nobody
thought I was implying they weren't or that Rowley was doing
anything wrong. If you want an IDE (particulary if you want
Linux support), Rowley is the first place I'd look.
The fact that the compiler itself is open-source is a real
bonus.
--
Grant Edwards grante Yow! What's the MATTER
at Sid? ... Is your BEVERAGE
visi.com unsatisfactory?
Reply by Frank-Christian Kruegel●May 21, 20072007-05-21
On 21 May 2007 04:08:04 -0700, Rohan <rohanshar@gmail.com> wrote:
>CPU: Powerful embedded 32-Bit ARM7 microcomputer @ 24 MHz
>Operating System: Real-time embedded OS VxWorks 5.5
>
>
>I have a set of library files and include files etc which came with
>the device.
>It needs an elf file instead of the regular exe as executable.
>
>which compiler should I used to generate that elf file.
The one that came with VxWorks 5.5 for that architecture. You'll need the
VxWorks environment anyway because of OS headers and libs and the build
environment.
And yes, it's expensive.
Mit freundlichen Gr��en
Frank-Christian Kr�gel
Reply by Tom Lucas●May 21, 20072007-05-21
"Grant Edwards" <grante@visi.com> wrote in message
news:13538sqhgbp1s66@corp.supernews.com...
> On 2007-05-21, Tom Lucas
> <news@REMOVE_tlcs_THIS_dot_TO_fsnet_REPLY_dot_co.uk> wrote:
>> "Rohan" <rohanshar@gmail.com> wrote in message
>> news:1179745684.665732.187920@n15g2000prd.googlegroups.com...
>>> Hi All,
>>>
>>> I have a hand held Meter Reading Instrument which has the following
>>> specifications
>>>
>>> CPU: Powerful embedded 32-Bit ARM7 microcomputer @ 24 MHz
>>> Operating System: Real-time embedded OS VxWorks 5.5
>>>
>>>
>>> I have a set of library files and include files etc which came with
>>> the device.
>>> It needs an elf file instead of the regular exe as executable.
>>>
>>> which compiler should I used to generate that elf file.
>>
>> Google for "ARM compilers" and you'll find lots. Some are free
>> such - gcc - and others cost a lot - Greenhills, IAR etc.
>> There are some in the middle which are not free but are much
>> cheaper than the dear ones - Rowley.
>
> The last I knew, the ARM compiler that Rowley sells is gcc.
I realise that the underlying compiler is still gcc but I would say that
from the OP's point of view they would appear to be two different
beasts. From the questions the OP asked one can infer that he is not
overly familiar with the linker end of the build process and is likely
to assume that the IDE _is_ the compiler.
But you are certainly correct, Crossworks generates object code using
gcc.
Reply by Boudewijn Dijkstra●May 21, 20072007-05-21
Op Mon, 21 May 2007 13:51:56 +0200 schreef Tom Lucas
<news@REMOVE_tlcs_THIS_dot_TO_fsnet_REPLY_dot_co.uk>:
> "Rohan" <rohanshar@gmail.com> wrote in message
> news:1179745684.665732.187920@n15g2000prd.googlegroups.com...
>> Hi All,
>>
>> I have a hand held Meter Reading Instrument which has the following
>> specifications
>>
>> CPU: Powerful embedded 32-Bit ARM7 microcomputer @ 24 MHz
>> Operating System: Real-time embedded OS VxWorks 5.5
>>
>>
>> I have a set of library files and include files etc which came with
>> the device.
>> It needs an elf file instead of the regular exe as executable.
>>
>> which compiler should I used to generate that elf file.
>
> Google for "ARM compilers" and you'll find lots. Some are free such -
> gcc - and others cost a lot - Greenhills, IAR etc. There are some in the
> middle which are not free but are much cheaper than the dear ones -
> Rowley. I'm sure Windriver will have a compiler they prefer for work
> with VxWorks but I guarantee it won't be cheap.
That one is called the Wind River Compiler (formerly Diab).
> Incidentally, the 'exe' is not regular, it just happens to be the object
> code format you are most familiar with (I guess you are from a PC
> background).
Exe is not a format, just an incarnation of the PE (Portable Executable)
format, which in turn is a perversion of the COFF format.
--
Gemaakt met Opera's revolutionaire e-mailprogramma:
http://www.opera.com/mail/
Reply by Grant Edwards●May 21, 20072007-05-21
On 2007-05-21, Tom Lucas <news@REMOVE_tlcs_THIS_dot_TO_fsnet_REPLY_dot_co.uk> wrote:
> "Rohan" <rohanshar@gmail.com> wrote in message
> news:1179745684.665732.187920@n15g2000prd.googlegroups.com...
>> Hi All,
>>
>> I have a hand held Meter Reading Instrument which has the following
>> specifications
>>
>> CPU: Powerful embedded 32-Bit ARM7 microcomputer @ 24 MHz
>> Operating System: Real-time embedded OS VxWorks 5.5
>>
>>
>> I have a set of library files and include files etc which came with
>> the device.
>> It needs an elf file instead of the regular exe as executable.
>>
>> which compiler should I used to generate that elf file.
>
> Google for "ARM compilers" and you'll find lots. Some are free
> such - gcc - and others cost a lot - Greenhills, IAR etc.
> There are some in the middle which are not free but are much
> cheaper than the dear ones - Rowley.
The last I knew, the ARM compiler that Rowley sells is gcc.
> Incidentally, the 'exe' is not regular, it just happens to be
> the object code format you are most familiar with (I guess you
> are from a PC background).
Precisely. ELF _is_ the "regular" executable/object file
format. The .exe format is an oddball, proprietary format.
--
Grant Edwards grante Yow! GOOD-NIGHT,
at everybody... Now I have to
visi.com go administer FIRST-AID to
mypet LEISURE SUIT!!
Reply by Tom Lucas●May 21, 20072007-05-21
"Rohan" <rohanshar@gmail.com> wrote in message
news:1179745684.665732.187920@n15g2000prd.googlegroups.com...
> Hi All,
>
> I have a hand held Meter Reading Instrument which has the following
> specifications
>
> CPU: Powerful embedded 32-Bit ARM7 microcomputer @ 24 MHz
> Operating System: Real-time embedded OS VxWorks 5.5
>
>
> I have a set of library files and include files etc which came with
> the device.
> It needs an elf file instead of the regular exe as executable.
>
> which compiler should I used to generate that elf file.
Google for "ARM compilers" and you'll find lots. Some are free such -
gcc - and others cost a lot - Greenhills, IAR etc. There are some in the
middle which are not free but are much cheaper than the dear ones -
Rowley. I'm sure Windriver will have a compiler they prefer for work
with VxWorks but I guarantee it won't be cheap.
Incidentally, the 'exe' is not regular, it just happens to be the object
code format you are most familiar with (I guess you are from a PC
background).
Reply by Rohan●May 21, 20072007-05-21
Hi All,
I have a hand held Meter Reading Instrument which has the following
specifications
CPU: Powerful embedded 32-Bit ARM7 microcomputer @ 24 MHz
Operating System: Real-time embedded OS VxWorks 5.5
I have a set of library files and include files etc which came with
the device.
It needs an elf file instead of the regular exe as executable.
which compiler should I used to generate that elf file.
Thanks,
Rohan