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GCC

Comp.Arch.Embedded is a worldwide Usenet news group that is used to discuss various aspects of Embedded Systems development.

We found 839 threads matching "gcc"

You are looking at page 1 of 21.

The most relevant threads are listed first

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...embedded gcc linker issue--trying to build for m68000 cpu

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: Disabling interrupts to protect data

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: Compilers on the MPC56xx? Recommendations, warnings?

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: ALP for Real Time Clock using timer unit of HC12

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: Squeezing bytes out of a struct

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...Re: Help needed to get CHSM binary

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...gcc - missing define?

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...Re: Microcontroller Recommendations for School Project: Laser Tag

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...STM32, ADCs, Timing Problem

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...mbed board, was: Re: ARM board features?

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: C++ compiler on Embeded Platform

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: installing GNU ARM TOOL Chain on Eclipse on a Linux Machine

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: Need C source for 64 bit integer math (have 32bit limit on my  compiler)

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: Developing/compiling software

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: OO languages

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: Wants an update on ARM compilers

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: how to chose the best embedded board?

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: gcov for MIPS

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: Hi-Tech Software bought by Microchip - no more other compilers

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 __"......Re: How to store 32x32->64 result on ARM

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...ARM 32 bit single board computer recommendations?  Need Flash,  ethernet A/D and D/A

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...Problems with programming AT91RM9200

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 ...Re: Background noise

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...GCC440 (arm) : (.data) section is empty in output

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: Need help with this connectors

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 -- PART  2

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

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

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

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

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

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

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: Richard Stallman is responsible for the shrinking economy

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: Designing for and soldering a tiny BGA

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

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. ...Re: Richard Stallman is responsible for the shrinking economy

Re: MISRA-C 2004 code checker

David Brown - 2009-04-07 16:12:00
Chris H wrote: > In message , Boudewijn Dijkstra > writes > > Op Tue, 07 Apr 2009 16:26:04 +0200 schreef Not Really Me > > : > > > Boudewijn Dijkstra wrote: > > > > Op Mon, 06 Apr 2009 23:47:50 +0200 schreef djordj > > > > : > > > > > Hi, > > > > > I need a tool to check...Re: MISRA-C 2004 code checker

Re: Parse C code

Tauno Voipio - 2009-04-06 08:58:00
Kofgarter wrote: > Hi! Suggest me please, where to get the source code of a program that > displays information about the declared, but not used functions in C code. > It will be perfect, if it is written in yacc + flex. > > gcc -Wunused gcc -Wall Homework / study project? For ...Re: Parse C code

Introduce memdviewer, its display memory image of your program.

2009-03-31 11:46:00
memsviewer is a viewer. Its display memory image of your program. Data is generated from GCC debugging format (stabs). I have some example , and you can generate a XML data from your C problam. http://code.google.com/p/memsviewer/ ...Introduce memdviewer, its display memory image of your program.

Collective Tuning Center to automate compiler, architecture and program design is now open for testing

Grigori Fursin - 2009-03-30 13:28:00
Dear friends, After 4 months of redevelopment we opened Collective Tuning Center (http://ctuning.org) for testing. It provides collaborative environment to develop common R&D tools with open API to automate compiler, architecture and program design and optimization using statistical and mac...Collective Tuning Center to automate compiler, architecture and  program design is now open for testing
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