Lpc2000

Hi,
I've changed my gcc compiler form gcc-3.3.1 to gnuarm's gcc-4.0.1. 
While integrating with Keil's uVision3 IDE I'm getting (while linking) 
above mentioned error (for every *.o file created from *.c).
I checked out, that the error does't occur when disabling option 
"Enable ARM/Thumb Interworking" on Assembler tab in "Options for 
Target..." dialog box. So, occuring (while linking with arm-elf-ld) of 
this error is related to way of assembling Startup.s file (with or 
without option -mthumb-interwork).
What could be reason of such behaviour? With gcc-3.3.1 it was ok.

Regards,
Arek

try to pass the -mno-fpu parameter to your assembler (if you don´t have a FPU).  

  ----- Original Message ----- 
  From: arrek_x 
  To: lpc2000@yahoogroups.com 
  Sent: Wednesday, February 22, 2006 1:45 PM
  Subject: [lpc2000] GNUARM "ERROR: lcd.o uses software FP, whereas main.elf uses hardware FP"


  Hi,
  I've changed my gcc compiler form gcc-3.3.1 to gnuarm's gcc-4.0.1. 
  While integrating with Keil's uVision3 IDE I'm getting (while linking) 
  above mentioned error (for every *.o file created from *.c).
  I checked out, that the error does't occur when disabling option 
  "Enable ARM/Thumb Interworking" on Assembler tab in "Options for 
  Target..." dialog box. So, occuring (while linking with arm-elf-ld) of 
  this error is related to way of assembling Startup.s file (with or 
  without option -mthumb-interwork).
  What could be reason of such behaviour? With gcc-3.3.1 it was ok.

  Regards,
  Arek





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[Non-text portions of this message have been removed]

uuups, uV3 simply provides possibility to add misc controls to 
parameters list. One again thank you for help!

On "options for target", guide "assembler", box "Misc Controls", type "-mno-fpu". This setting will set this option for ALL your assembly files on your project. If you want to set this option only for a few files, group then on a common folder on "Project Workspace", right-click the folder and select the first item on popup menu, "Options for Group (...)". Same setting: guide "Assembler", box "Misc Controls".

You can configure this options for a single file to: instead right-clicking on a folder, right-click on a file. It should work for you.

I don´t know if it is the best way to solve this issue anyway. If someone have other way on doing it...

Regards,

Thiago Takehara
Computer Engineer
Engworks Industrial LTDA - R&D Division

  ----- Original Message ----- 
  From: arrek_x 
  To: lpc2000@yahoogroups.com 
  Sent: Wednesday, February 22, 2006 5:24 PM
  Subject: [lpc2000] Re: GNUARM "ERROR: lcd.o uses software FP, whereas main.elf uses hardware FP"


  --- In lpc2000@yahoogroups.com, "Thiago Takehara" <thiago@...> wrote:
  >
  > try to pass the -mno-fpu parameter to your assembler (if you don´t 
  have a FPU).  

  My ARM is LPC2138, and it doesn't have FPU indeed. It helped, thak 
  you! :). I tested it by manually preparing makefile and using external 
  make utility. Now the question is, how to force uVision3 to add -mno-
  fpu to arm-elf-as's parameters list. uV3 user can only change settings 
  in dialog box, depending on which uV3 prepares parameters. AFAIK it 
  can not be simply modified by the programmer :(.
  Of course, I can resign using uV3 and use Programmer Notepad for 
  example, but I'd like to stay by uV3.

  Best regards,
  Arek






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[Non-text portions of this message have been removed]

> I've changed my gcc compiler form gcc-3.3.1 to gnuarm's gcc-4.0.1. 
> While integrating with Keil's uVision3 IDE I'm getting (while linking) 
> above mentioned error (for every *.o 

Can you explain how to integrate gcc-4.0.1 with keil?
I tried but uVision3 generates error like object file not found.

Best Regards,

Mukund Deshmukh.
Beta Computronics Pvt Ltd,
10/1, IT Park, Parsodi,
Nagpur-440022
Cell - 9422113746

--- In lpc2000@yahoogroups.com, Mukund Deshmukh <betacomp_ngp@...> 
wrote:
>
> > I've changed my gcc compiler form gcc-3.3.1 to gnuarm's gcc-4.0.1. 
> > While integrating with Keil's uVision3 IDE I'm getting (while 
linking) 
> > above mentioned error (for every *.o 
> 
> Can you explain how to integrate gcc-4.0.1 with keil?
> I tried but uVision3 generates error like object file not found.
> 

Could you tell what exactly the error is?

I installed gcc-4.0.1. I'm not using Cygwin, so while installing I 
checked option "Install Cygwin DLLs". Unfortunately, there's file 
cygintl-3.dll missing in /GNUARM/bin. Temporarely I copied and renamed 
file cygintl-2.dll to cygintl-3.dll. It seems to work, but it's not a 
solution I can recommend. Better way is to install libintl3 package 
(probably), but I havent tried yet. Then I met an error described 
above, and solved it by adding -mno-fpu to assembler's parameter list, 
like Thiago Takehera wrote.

Regards,
Arek

> > > I've changed my gcc compiler form gcc-3.3.1 to gnuarm's gcc-4.0.1.
> > > While integrating with Keil's uVision3 IDE I'm getting (while
> linking)
> > > above mentioned error (for every *.o
> >
> > Can you explain how to integrate gcc-4.0.1 with keil?
> > I tried but uVision3 generates error like object file not found.
> >
>
> Could you tell what exactly the error is?
>

I am using winarm.
The gcc compiler down loaded from Keil site works well.
But if I use winarm, it gives object file not found.
By the way I have observed that code size is large (5000) when I compile
with gcc from keil and its very low (1000 bytes) when I compile with winarm.
Any idea?

Best Regards,

Mukund Deshmukh.
Beta Computronics Pvt Ltd,
10/1, IT Park, Parsodi,
Nagpur-440022
Cell - 9422113746

I´ve downloaded this file from http://www.willamette.edu/~mbentley/bin/ . Because I use cygwin, I tried not to install cygwin dlls with GNUARM, but it was incompatible with my cygwin1.dll (maybe because I´ve rebased...).

I could not find make for GNUARM. Someone knows if it exists? In case the answer is 'no', can I use the standard GNU make from cygwin with GNUARM?

Regards,

Thiago Takehara
Computer Engineer
Engworks Industrial LTDA - R&D Division

  ----- Original Message ----- 
  From: arrek_x 
  To: lpc2000@yahoogroups.com 
  Sent: Thursday, February 23, 2006 8:10 AM
  Subject: [lpc2000] Re: GNUARM "ERROR: lcd.o uses software FP, whereas main.elf uses hardware FP"


  --- In lpc2000@yahoogroups.com, Mukund Deshmukh <betacomp_ngp@...> 
  wrote:
  >
  > > I've changed my gcc compiler form gcc-3.3.1 to gnuarm's gcc-4.0.1. 
  > > While integrating with Keil's uVision3 IDE I'm getting (while 
  linking) 
  > > above mentioned error (for every *.o 
  > 
  > Can you explain how to integrate gcc-4.0.1 with keil?
  > I tried but uVision3 generates error like object file not found.
  > 

  Could you tell what exactly the error is?

  I installed gcc-4.0.1. I'm not using Cygwin, so while installing I 
  checked option "Install Cygwin DLLs". Unfortunately, there's file 
  cygintl-3.dll missing in /GNUARM/bin. Temporarely I copied and renamed 
  file cygintl-2.dll to cygintl-3.dll. It seems to work, but it's not a 
  solution I can recommend. Better way is to install libintl3 package 
  (probably), but I havent tried yet. Then I met an error described 
  above, and solved it by adding -mno-fpu to assembler's parameter list, 
  like Thiago Takehera wrote.

  Regards,
  Arek





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[Non-text portions of this message have been removed]

On 2/23/06, Thiago Takehara <thiago@...> wrote:
>
>  I´ve downloaded this file from http://www.willamette.edu/~mbentley/bin/<http://www.willamette.edu/%7Embentley/bin/>. Because I use cygwin, I tried not to install cygwin dlls with GNUARM, but
> it was incompatible with my cygwin1.dll (maybe because I´ve rebased...).
>
> I could not find make for GNUARM. Someone knows if it exists? In case the
> answer is 'no', can I use the standard GNU make from cygwin with GNUARM?
>
> Regards,
>
> Thiago Takehara
> Computer Engineer
> Engworks Industrial LTDA - R&D Division
>

Yes - I think you can use any make utility you like.

--
Jim Parziale
nuncio.bitis@gmail.com
Malden, MA


[Non-text portions of this message have been removed]

--- In lpc2000@yahoogroups.com, "Thiago Takehara" <thiago@...> wrote:
> I could not find make for GNUARM. Someone knows if it exists? In 
>case the answer is 'no', can I use the standard GNU make from cygwin 
>with GNUARM?

You surely can. Make is just a make, and nothing but make ;).
There's a helloworld_gnuarm.zip example in Files section, where 
Microsoft's NMAKE has been used for example.

--- In lpc2000@yahoogroups.com, Mukund Deshmukh <betacomp_ngp@...> 
wrote:
>
> > > > I've changed my gcc compiler form gcc-3.3.1 to gnuarm's gcc-4.
0.1.
> > > > While integrating with Keil's uVision3 IDE I'm getting (while
> > linking)
> > > > above mentioned error (for every *.o
> > >
> > > Can you explain how to integrate gcc-4.0.1 with keil?
> > > I tried but uVision3 generates error like object file not found.
> > >
> >
> > Could you tell what exactly the error is?
> >
> 
> I am using winarm.
> The gcc compiler down loaded from Keil site works well.
> But if I use winarm, it gives object file not found.
> By the way I have observed that code size is large (5000) when I 
compile
> with gcc from keil and its very low (1000 bytes) when I compile with 
winarm.
> Any idea?

About code size - check optimization option (-O) in compiler's 
parameters list. There are several levels of optimization:

-O default
-O0 no opt.
-O1 level1
-O2 level2 (big speed)
-O3 level3
-Os small size

Yes, it worked well! Now it is fully usable, thanks!

Thiago Takehara
Computer Engineer
Engworks Industrial LTDA - R&D Division

  ----- Original Message ----- 
  From: arrek_x 
  To: lpc2000@yahoogroups.com 
  Sent: Thursday, February 23, 2006 10:00 AM
  Subject: [lpc2000] Re: GNUARM "ERROR: lcd.o uses software FP, whereas main.elf uses hardware FP"


  --- In lpc2000@yahoogroups.com, "Thiago Takehara" <thiago@...> wrote:
  > I could not find make for GNUARM. Someone knows if it exists? In 
  >case the answer is 'no', can I use the standard GNU make from cygwin 
  >with GNUARM?

  You surely can. Make is just a make, and nothing but make ;).
  There's a helloworld_gnuarm.zip example in Files section, where 
  Microsoft's NMAKE has been used for example.






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[Non-text portions of this message have been removed]

> > I am using winarm.
> > The gcc compiler down loaded from Keil site works well.
> > But if I use winarm, it gives object file not found.
> > By the way I have observed that code size is large (5000) when I
> compile
> > with gcc from keil and its very low (1000 bytes) when I compile with
> winarm.
> > Any idea?
> 
> About code size - check optimization option (-O) in 
> compiler's parameters list. There are several levels of optimization:
> 
> -O default
> -O0 no opt.
> -O1 level1
> -O2 level2 (big speed)
> -O3 level3
> -Os small size

After you've checked the optimization flags:
Do you know which C libraries you are using in each case ?

WinARm by default is setup to use newlib. I recall a discussion on here
about Keil using by default a different C library. It was in a
discussion about C lib licensing issues.
It might be you are comparing apples with oranges. (This is not to say
one lib is better than another; just your app may end up with a smaller
fit in the newlib case, or the library was compiled with a different
optimisation (or even thumb mode) even if your app is compiled at the
same optimisation level.)

Cheers,
Bruce