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Comp.Arch.Embedded is a worldwide Usenet news group that is used to discuss various aspects of Embedded Systems development.
We found 843 threads matching "gcc"
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The most relevant threads are listed first
Re: Google releases new programing language.
David Brown - 2009-11-12 15:14:00
Don McKenzie wrote:
>
> Google releases new programing language.
> http://golang.org/
>
> http://tech.yahoo.com/news/infoworld/20091110/tc_infoworld/99864
>
> and for your viewing pleasure:
> http://www.youtube.com/watch?v=rKnDgT73v8s
> a one hour youtube video!
>
This is ...
Re: va_args (va_start, va_end, va_list ) souce?
Nobody - 2009-11-09 17:34:00
On Sat, 07 Nov 2009 10:52:20 -0700, Not Really Me wrote:
> I'm trying to make a simplified printf that does not rely on stdarg.h and
> its accompanying baggage, so I need the source to the va_args functions.
They're macros, not functions. The fact that the second argument to
va_arg() is ...Re: FPGA Soft Core CPUs
Philipp Klaus Krause - 2009-11-08 09:00:00
Jack Klein schrieb:
> But if we're talking soft core, I'm not going to allow our embedded
> software department get saddled with supporting both NIOS and Micro
> Blaze.
Why go for a non-free softcore? There's lots of free softcores out
there, many of them with good toolchain support (typ...Re: Micro to drive a TFT LCD
vinnie - 2009-11-05 09:36:00
> > I really like the flexibility of this line with the pin compatibility
> > within the family, as well as the much lower price compared to the lpc
> > chip. =A0I have very little experience with tft displays and don't want
t=
> o
> > waste all my time setting up the display if most of the ...embedded gcc linker issue--trying to build for m68000 cpu
Jim - 2009-11-02 19:24:00
Hi,
I'm using the free Code Sourcery Lite gcc for m68k for a home project
that involves a micro with 68000 cpu core. I added -lgcc to the
linker flags to resolve an issue with __divsi3. However, now I get
the following linker error:
c:/program files/codesourcery/sourcery g++ lite/bin/../l...Re: Disabling interrupts to protect data
David Brown - 2009-10-30 04:41:00
Stefan Reuther wrote:
> D Yuniskis wrote:
> > Stefan Reuther wrote:
> > > D Yuniskis wrote:
Before I comment on your code below, let me first say I agree entirely
that it is almost always better to have a small but clear and
predictable interrupt latency using CLI/STI that you can e...Re: Compilers on the MPC56xx? Recommendations, warnings?
David Brown - 2009-10-28 11:38:00
Mark Piffer wrote:
> Hi group,
>
> we are in the process of switching over to a Freescale MPC56xx in one
> of our products. Question is, which compiler is recommended by those
> in the know of this platform? From a preference point of view, I would
> like to get away from the Freescale ...Re: ALP for Real Time Clock using timer unit of HC12
Frnak McKenney - 2009-10-27 11:18:00
On Sun, 25 Oct 2009 16:19:17 -0500, alex99 wrote:
> I am implementing an ALP program to implement a real time clock to display
> hour,minute,second using features available in a timer unit. Digits have to
> displayed on one of the GPIO ports of HC12 micro-controller.
>
> I do know how...Re: Squeezing bytes out of a struct
David Brown - 2009-10-27 04:08:00
Jon Kirwan wrote:
> On Mon, 26 Oct 2009 21:45:07 +0100, David Brown
> wrote:
>
> > D Yuniskis wrote:
> > > Hi,
> > >
> > > [I'll post this here instead of c.l.c as I suspect folks here
> > > are far more adept at "squeezing bytes" out of things (vs.
> > > the "desktop jocks")]
...Re: Help needed to get CHSM binary
David Brown - 2009-10-26 12:15:00
Tim Wescott wrote:
> On Mon, 26 Oct 2009 10:30:31 -0400, Rich Webb wrote:
>
> > On Tue, 27 Oct 2009 00:38:16 +1100, "Marc Hillman"
> > wrote:
> >
> > > I would REALLY like to evaluate CHSM: Concurrent Hierarchical Finite
> > > State Machine, but despite my best efforts I cannot bui...gcc - missing define?
Not Really Me - 2009-10-24 11:00:00
I'm building a project using gcc and coming up with a couple of missing
defines. I've tried this with both native gcc with 686 for a target and
ppc-elf-gcc with a ppc target.
When it includes stdio.h there are a couple of undefined symbols, off_t and
clock_t.
In file included from ..\a0...Re: Microcontroller Recommendations for School Project: Laser Tag
David Kelly - 2009-10-22 14:48:00
In addition to what others have said I would suggest shopping for
demonstration boards or hobbyist boards with CPU and RF prebuilt and
tested. If this is a 1 term project and the term has already started you
need as much help as you can get. Spend time developing rather than
building.
I r...STM32, ADCs, Timing Problem
Mike Kaufmann - 2009-10-09 18:28:00
Hello Everyone,
these days I encountered a serious timing problem using the ADCs, twice.
Because of this the ADC interrupt used up all computing power, leading
to a not or *very* slow running application and, if activated, a
watchdog reset.
What happend:
The first time the error occured so...mbed board, was: Re: ARM board features?
Simon Clubley - 2009-10-08 09:06:00
On 2009-10-07, Joey.G wrote:
> Try
> 1.
> http://www.standardics.nxp.com/support/development.hardware/mbed.lpc176x/
>
> It's quite new.
>
That's a nice board at a very nice price point.
Does anyone know if it's possible to replace the builtin firmware with a
more traditional s...Re: C++ compiler on Embeded Platform
Stefan Reuther - 2009-10-06 13:03:00
David Brown wrote:
> arnuld wrote:
> > > On Tue, 06 Oct 2009 08:56:09 +0200, David Brown wrote:
> > > Features like classes, strong typing, overloading and namespaces are
> > > basically "free" with a good compiler. Templates can be good, or can
> > > quickly lead to a great waste of spac...Re: installing GNU ARM TOOL Chain on Eclipse on a Linux Machine
David Brown - 2009-10-01 15:52:00
aquibf wrote:
> Hi,
>
> I am trying to use Eclipse on a Linux machine for ARM development, but can'
> get to understand how to install the arm tool chain on to Eclipse.
>
> I am looking for docs, tutorials or direct help that will allow me
> configure Eclipse to compile c code for th...Re: Need C source for 64 bit integer math (have 32bit limit on my compiler)
Arlet - 2009-09-24 01:48:00
On Sep 23, 9:48 pm, Andrew wrote:
> I'm using CodeVision C compiler on an AVR.
> CodeVision has 32bit limitation for integers.
> I need to do 64bit integer math (32bx32b, 32b+32b).
>
> I could reinvent the wheel,
> but figure this has to be out there
> in multiple places for free.
...Re: Developing/compiling software
Grant Edwards - 2009-09-16 10:43:00
On 2009-09-16, Lodewicus Maas wrote:
> HI All
>
> I've looked at Keil uVIsion (Trial Version) as well as Asem51v1.3 (old
> stuff).
>
> Any suggestions of the compiler software you're using to write/compile your
> code and create hex files to upload to the ATMEL microcontrollers.
...Re: OO languages
Niklas Holsti - 2009-09-04 05:36:00
Grant Edwards wrote:
> On 2009-09-03, Niklas Holsti wrote:
> > So why isn't Ada used more?
>
> The only data point I have first hand is from the late 80's.
> The first and only time I used Ada the toolset and development
> environment was amazingly horrible. It was on a VAX/VMS
>...Re: Wants an update on ARM compilers
Rich Webb - 2009-09-01 13:29:00
On Tue, 01 Sep 2009 09:31:01 -0600, Johnson wrote:
> Could anybody please show me a list of popular ARM compilers
A web search for "arm compiler" lists all of the popular ones as well as
quite a few I'd never heard of before.
> and their
> approximate costs? For GCC compilers we can ...Re: how to chose the best embedded board?
cs_posting@hotmail.com - 2009-08-13 09:51:00
On Aug 9, 8:41=A0pm, "EmbeddedLotus"
wrote:
> I'm looking for a so-called embedded board to use in vehicle(bus.
> I'm confused about bunch of keywords: SBC, Car PC, embedded motherboard, =
computer on module ,....
You probably need to put some more thought into your requirements,
thou...Re: gcov for MIPS
=?ISO-8859-1?Q?Hans-Bernhard_Br=F6ker?= - 2009-07-12 16:56:00
karthikbalaguru wrote:
> Will the files necessary for gcov be generated during
> the execution of the executable ?
That's for you to answer yourself.
_You_ decide what you have on your MIPS board: what OS (or none at all),
what file system, what level of support for special GCC feature...Re: Hi-Tech Software bought by Microchip - no more other compilers
The Real Andy - 2009-07-08 05:32:00
On Mon, 6 Jul 2009 22:01:49 +1000, "David L. Jones"
wrote:
> nobody@nowhere.com wrote:
> > Does anybody know what has happened to their old compilers e.g. H8/300
> > or Z180?
>
> They binned them, as to be expected.
>
> > Is somebody buying the rights to these products?
>
> Unli...Re: How to store 32x32->64 result on ARM
Leonitis - 2009-07-06 10:48:00
Thanks everyone for your input! Why I decided to write this using inline
assembly was because I couldn't understand what GCC was doing. It was
branching to __muldi3 which I couldn't see. Now, however, it displays the
assembly. (could someone please clarify what the branch to __muldi3 or
other __"......ARM 32 bit single board computer recommendations? Need Flash, ethernet A/D and D/A
fred - 2009-06-26 14:18:00
Hi All,
I have a project coming up where I need to do some datalogging,
calculations and control output. I need a board that has:
Pref. ARM 32 bit CPU
Flash memory, pref. using SD card
Ethernet
RS-485
At least 4 A/D channels
2 D/A channels
At least 4 digital I/O channel
Onboard counte...Problems with programming AT91RM9200
odi - 2009-06-08 15:27:00
hi,
I have designed board with AT91RM9200 microcontroller and I've got some
problems with programming it... I wanted to program any bootloader into
connected AT45DB041D dataflash. Right now I can't send data via DBGU - I
thought it is MAX3232's fault but I replaced it and still nothing. However
sen...Re: Background noise
Stefan Arentz - 2009-05-25 21:13:00
Peter Keller writes:
> David Brown wrote:
> > And if you don't want to use FTDI devices (though I recommend them),
> > there is libusb - no need to write the 10,000 lines yourself.
>
> Do you mean libusb as a library on a linux machine? Or libusb as in some
> collection of C or ...GCC440 (arm) : (.data) section is empty in output
frikkiethirion - 2009-05-13 05:21:00
Good day,
I've noticed that the initialized data section in the program binary is
zero bytes, by inspecting the file with 'size':
$ arm-none-eabi-size main.out
text data bss dec hex filename
56160 0 2856 59016 e688 main.out
I'm running GCC 4.4.0, crosscompi...Re: Need help with this connectors
Anton Erasmus - 2009-05-05 15:44:00
On Tue, 05 May 2009 08:06:21 -0500, "jrivero"
wrote:
> Hi Gurus,
>
> I am a senior software developer, but a newbie as a embedded software
> developer. I am currently working on a project with the following
> characteristics:
>
> - C/C++ code
> - CodeWarrior 1.2
> - ARM7TDMI (I thin...Re: Richard Stallman is responsible for the shrinking economy -- PART 2
Pertti Kellomaki - 2009-04-27 03:37:00
bigbrownbeastiebigbrownface@googlemail.com wrote:
> On Apr 26, 6:16 pm, Pertti Kellomaki wrote:
> > This conflation of OS and applications running on the OS is
> > probably one of the most persistent pieces of FUD on open
> > source.
>
> then you end up being sued and in a expensive w...Re: Richard Stallman is responsible for the shrinking economy
David Brown - 2009-04-17 13:44:00
rickman wrote:
> On Apr 16, 9:42 am, David Brown
> wrote:
> > rickman wrote:
> > > There are similar restrictions FPGA tools. Worse they seem to be able
> > > to restrict use of the compiled design that is produced from their
> > > tools. I have read about this being upheld by the c...Re: Richard Stallman is responsible for the shrinking economy
rickman - 2009-04-16 13:26:00
On Apr 16, 9:42=A0am, David Brown
wrote:
> rickman wrote:
> > There are similar restrictions FPGA tools. =A0Worse they seem to be abl=
e
> > to restrict use of the compiled design that is produced from their
> > tools. =A0I have read about this being upheld by the courts when
> > ...Re: Richard Stallman is responsible for the shrinking economy
Jon Kirwan - 2009-04-16 07:30:00
On Thu, 16 Apr 2009 06:30:11 -0500, Walter Banks
wrote:
> Jon Kirwan wrote:
>
> > Walter, I think Chris provides the answer already discussed here
> > regarding lack of participation. With that kind of hate and spite
> > flowing from even one member, I wouldn't expect anyone to walk ...Re: Richard Stallman is responsible for the shrinking economy
Jon Kirwan - 2009-04-16 04:51:00
On Thu, 16 Apr 2009 11:24:32 +0300, Pertti Kellomaki
wrote:
> Chris H wrote:
> > I think it was taken as read that it would be fixed. Commercial
> > compilers tent to do that. It is the discipline they work to. Rather
> > than fixing problems if and when the spirit moves them as per Gcc...Re: Richard Stallman is responsible for the shrinking economy
Jon Kirwan - 2009-04-16 04:42:00
On Thu, 16 Apr 2009 07:59:05 +0100, Chris H
wrote:
> In message , Jon Kirwan
> writes
> > On Wed, 15 Apr 2009 23:49:22 +0100, Chris H
> > wrote:
> >
> > > In message , Jon Kirwan
> > > writes
> > > >
> > > > In fact, if
> > > > the standards committees were sufficien...Re: Richard Stallman is responsible for the shrinking economy
Chris H - 2009-04-16 02:59:00
In message , Jon Kirwan
writes
> On Wed, 15 Apr 2009 23:49:22 +0100, Chris H
> wrote:
>
> > In message , Jon Kirwan
> > writes
> > >
> > > In fact, if
> > > the standards committees were sufficiently concerned about rogue
> > > development by non-participants in their proc...Re: Richard Stallman is responsible for the shrinking economy
Jon Kirwan - 2009-04-15 22:41:00
On Wed, 15 Apr 2009 20:43:52 -0500, Walter Banks
wrote:
> Jon Kirwan wrote:
>
> > Recently, Tim Wescott posted a link to a PDF on volatile which claimed
> > that it wasn't handled correctly on just about every compiler they
> > tried it with. I think the paper focused more on GCC, th...Re: Designing for and soldering a tiny BGA
David Brown - 2009-04-15 17:27:00
Joerg wrote:
> rickman wrote:
> >
> > In PCB layout as in many other areas, things are changing. The open
> > source tools are becoming much more useful and widely accepted. My
> > current customer actually has asked me why I am still using commercial
> > tools when open source is avai...Re: Richard Stallman is responsible for the shrinking economy
Jon Kirwan - 2009-04-15 17:21:00
On Wed, 15 Apr 2009 09:23:29 +0200, David Brown
wrote:
> Jon Kirwan wrote:
> > On Tue, 14 Apr 2009 21:12:40 -0500, Walter Banks
> > wrote:
> >
> > > Jon Kirwan wrote:
> > >
> > > > Well, I don't want to get in the middle of professionals in this area.
> > > > But your opinio...Re: Richard Stallman is responsible for the shrinking economy
2009-04-10 10:41:00
Chris H writes:
> > Well, this is a case where my personal opinion is that the software
> > *always* should be given away for free.
>
> Why? Is software valueless?
No, because software has more value when used to leverage your core
product than when you try to sell it on its own. ...