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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 1303 threads matching "avr"
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The most relevant threads are listed first
Re: Small Linux board
=?ISO-8859-2?Q?Stefan_Brr=F6ring?= - 2009-11-03 10:19:00
Piotr schrieb:
> On 2009-11-01 18:25, Stefan Brröring wrote:
> > I bought it directly in China via E-Bay.
>
> By the way, could you recommend any low-cost JTAG programmer for this
> CPU (S3C2440) and Flash memory? What kind of tools do you use?
>
> Thanks in advance.
>
When i...
Re: Disabling interrupts to protect data
David Brown - 2009-10-30 04:01:00
ChrisQ wrote:
> Stefan Reuther wrote:
>
> > By "easy to get wrong" I mean, for example, that you have to tell all
> > your interrupt routines about your atomic_swap routine, so that they can
> > see that they've interrupted it and can complete or restart it. This is
> > nasty asm tricke...Looking for Full time position in Embedded Systems
Nripendra Singh - 2009-10-28 12:12:00
Hi,
I have completed Masters in Electrical Engineering from University of
North Carolina at Charlotte and currently I am looking for full time
position in the field of Embedded Systems and software Development.
I have an in-depth knowledge of C/C++, MATLAB and Core JAVA. During my
masters pro...Re: How to Interface microcontroller with Mobile using USB
Rene - 2009-10-28 07:56:00
rememberramu wrote:
> I am doing a project where I need an interface between mobile phone and
> microcontroller. Actually I need to process text message on
> microcontroller. The mobile phone has USB output, and I found that
> PIC18F4550 has USB input, but both of the device acts as slave no...Re: Microcontroller Recommendations for School Project: Laser Tag
Rich Webb - 2009-10-22 11:41:00
On Thu, 22 Oct 2009 08:09:06 -0700 (PDT), D-Shap
wrote:
> I'm taking a senior design class in college (I'm an Electrical/
> Computer Engineering major) and my final project is a laser tag game.
> My partner and I are trying to pick a good microcontroller for the
> guns and we're looking fo...Re: Please tell me what is the cheapest ARM with my request ip(100K annual)
Ulf Samuelsson - 2009-10-14 20:32:00
rickee skrev:
> Please tell me what is the cheapest ARM with my request ip.
> Our company would like to change current audio application
> to embedded system.
> after my researching, only 2 way to realize, one is made ASIC Chip
> (request very long develop time,and huge investment), anothe...Altera USB blasters as USB-SPI interface with ponyprog
Antti - 2009-10-12 03:08:00
hi
a first version of the solution is available from its temporary home
at my brains download area
http://groups.google.com/group/antti-brain/files?hl=en
it does allow unmodified PonyProg 2.07c to use Altera USB blaster to
program SPI devices,
instrucions are in the download archive
its v...Re: C++ compiler on Embeded Platform
David Brown - 2009-10-06 06:56:00
arnuld wrote:
> > On Tue, 06 Oct 2009 08:56:09 +0200, David Brown wrote:
>
> > ..SNIP...
>
> > "Embedded" can mean very different things to different people. If you
> > are talking about "embedded pc", then C++ would be a good choice,
> > although a higher-level language such as Pyt...Re: Registers , Code Size and LOOPS - AT89S51/2
David Brown - 2009-10-05 03:13:00
Lodewicus Maas wrote:
> Hi Hans-Bernhard
>
> I do understand your frustration with me and other users on this forum.
> I could not find a single topic where you did provide a correct answer
> or add value, but please hang in there, maybe out of my stupid questions
> you might also on...Re: Developing/compiling software
Jon Kirwan - 2009-09-28 15:11:00
On Mon, 28 Sep 2009 14:28:37 +0300, Niklas Holsti
wrote:
>
> Although the AVR is register-rich, it is "pointer-poor". Some other
> architectures, such as the H8/300, have more flexible interplay of 8-bit
> and 16-bit computations.
If my memory is right, I was playing with the H8/30...Need C source for 64 bit integer math (have 32bit limit on my compiler)
Andrew - 2009-09-23 15:48:00
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.
Any suggestions for free
C source for 64bit integer mat...Re: Processor Selection for SoC
David Brown - 2009-09-17 05:21:00
moogyd wrote:
> Hi,
>
> I am looking at selecting a processor for our SoC platform. Currently
> we use an embedded 8051 core (small, low power, low performance,
> cheap).
>
> For our next project, we need more performance, and we are also trying
> to create a platform suitable for ...Re: Developing/compiling software
Meindert Sprang - 2009-09-16 05:25:00
"Lodewicus Maas" wrote in message
news:EeWdna48jIcnOi3XnZ2dnUVZ8hKdnZ2d@saix.net...
> 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 f...Re: Software architecture using C for mid-range PIC.
Vladimir Vassilevsky - 2009-09-10 11:14:00
Neil wrote:
> Vladimir Vassilevsky wrote:
>
>
> > It is so much easier to use a basic time-slicing round robin
> > preemptive multitasker rather then developing the complicated
> > non-blocking state machines. Then, the tasks can be done as the
> > straightforward linear code...Atmega 128 and AT25F512A flash memory problems
Tumke - 2009-09-10 07:01:00
Heya guys,
I'm trying to get the AT25F512A 512kb flash chip working with an
Atmega128, but unfortunately without any success thus far.
I'm using the AVRlib SPI and SPIFlash .c and .h files to get it going,
however I had to change the SPIByte function in SPIFlash.c into
SpiTransferByte and SpiS...Re: Selection of Microcontroller
Ian - 2009-09-08 04:35:00
On Sep 7, 10:13=A0pm, "manishfire" wrote:
> I want to make a Project in which i want to communicate b/w two USB Flash
> Drive.
>
> In this i want to transfer data form one that will act as Host to the
> Client USB Drive.
>
> Please tell me which Micro controller is best for doing th...Re: Which C dialect should I pick?
FreeRTOS info - 2009-09-08 04:17:00
"Anders Sørensen" wrote in message
news:f7f80fbd-425f-4e0a-8ac2-157d45abb225@k39g2000yqe.googlegroups.com...
> Hi,
>
> I'm looking to writing software for the NXT in either pure C or a
> dialect thereof. I had the option of choosing the Java Optimized
> Processor (JOP) instead of th...Re: Embedded contract work wanted.
heindekock - 2009-09-04 12:23:00
Hi All
I see the thread is a bit old now but I would still like to ask a few
questions regarding contract work.
1. How do contractors handle the issue of compilers?
I am a director/shareholder in a company that develop very specific
devices for our needs, so it hardly keeps me busy, as a result...Re: ATtiny10
larwe - 2009-09-04 06:04:00
On Sep 4, 5:33=A0am, "Antti.Luk...@googlemail.com"
> > > Cool. =A0It would be nice to have another
> > > USD $0.50 part. =A0They make good reset
>
> > PIC12F509? (for 8-pin)
>
> status: NOT AVAILABLE
Why must it be an AVR, is my question? Atmel is notorious for this
sort of th...Re: OO languages
Niklas Holsti - 2009-09-04 05:26:00
D Yuniskis wrote:
> Ada limits the size
> of the problem that you can practically solve and the
> hardware on which you can solve it. E.g., are you
> going to design a control system for a microwave oven
> on a little 8 (or even *4*!) bit processor in Ada?
The size of the language does...Re: Debugging TMS320, Step 1
Olimex - 2009-08-18 02:21:00
On 17 =D0=90=D0=B2=D0=B3, 14:27, "Radly" wrote:
> I maintain the code for a controller based on the TMS320R2811. =C2=A0My s=
ystem
> uses the boot loader to download the execuable code from a host app, so I
> need to know how to set breakpoints after the download is done. =C2=A0Som=
eone
...Re: USB host controller recomendation
linnix - 2009-08-10 23:05:00
On Aug 11, 6:12=A0am, Paul Carpenter
wrote:
> In article ,
> wjimen...@hotmail.com says...
>
> > > In article ,
> > > wjimen...@hotmail.com says...
> > > > > Hi, I need to know which USB host controller chip will work with
> > > > > isochronous USB data transfer
> > > ...Interfacing NAND flash to EBI
Nicholas Kinar - 2009-08-03 11:11:00
Hello--
I recently got contacted off-list by someone who is creating an embedded
system with NAND flash and the SAM9XE processor. I'm posting this
solution here on this list to perhaps help others who are interfacing a
NAND flash to an embedded system. This is a solution which has been
...Good ZigBee Dev Starter Kit Recommendation Help
Gadi - 2009-07-14 14:42:00
Greetings,
I am looking to get started developing a short range low power device
that will consist of a controller and a device with a motor and
sensors. I would like to use ZigBee as the wireless technology
solution to connect the controller to the device. It meets the price
point and range ...Re: Hi-Tech Software bought by Microchip - no more other compilers
krw - 2009-07-11 11:23:00
On Sat, 11 Jul 2009 06:59:49 GMT, nico@puntnl.niks (Nico Coesel)
wrote:
> krw wrote:
>
> > On Fri, 10 Jul 2009 19:59:08 GMT, nico@puntnl.niks (Nico Coesel)
> > wrote:
> >
> > > "Joel Koltner" wrote:
> > >
> > > > "Walter Banks" wrote in message
> > > > news:4A574681.1A6D66@b...Re: Hi-Tech Software bought by Microchip - no more other compilers
krw - 2009-07-10 20:24:00
On Fri, 10 Jul 2009 19:59:08 GMT, nico@puntnl.niks (Nico Coesel)
wrote:
> "Joel Koltner" wrote:
>
> > "Walter Banks" wrote in message
> > news:4A574681.1A6D66@bytecraft.com...
> > > We encourage and support our customers to use the IDE they are familiar
> > > with (most have compa...Re: Hi-Tech Software bought by Microchip - no more other compilers
Mike Harrison - 2009-07-09 03:39:00
On Thu, 09 Jul 2009 04:55:11 +0100, Nobody wrote:
> On Thu, 09 Jul 2009 09:57:45 +0800, who where wrote:
>
> > > I'm not expecting them to give away the Hi-Tech product for free.
> >
> > (snip)
> >
> > Why not?
>
> Because they charge $500 for C18, and the Hi-Tech compiler is s...Re: New Atmel Cortex M3 runs at 96MHz, has high-speed USB
An Schwob in USA - 2009-06-25 01:17:00
On Jun 20, 11:37=A0am, "FreeRTOS.org" wrote:
......
> > Why are they calling it 'Atmel Cortex M3' when it's an 'ARM Cortex M3'?
>
> Licensed from ARM, made by Atmel.
>
> These microcontroller.com threads always seem to appear two weeks after t=
he
> parts are originally mentioned.
...Program Atmega32
jemsheedth - 2009-06-12 13:18:00
I am very new to microcontroller programing. I have compiled my program in
C. And got the HEX file and Makefile. Then which file should I use to burn
into atmega32 microcontroller using ponyprog software? I have compiled it
using Codevision AVR. What is the use of Makefile. I tried burning the HEX
f...Re: Atmel launch SAM3 Cortex M3
-jg - 2009-06-01 20:03:00
On Jun 2, 6:23=A0am, "FreeRTOS.org" wrote:
> See:http://www.atmel.com/dyn/corporate/view_detail.asp?FileName=3DAT91SAM=
3U...
>
> Naturally there is a FreeRTOS demo ready:
>
> http://www.freertos.org/Free-RTOS-for-Atmel-SAM3-Cortex-M3.html
>
> Also there is a new LPC1766 demo:
>
...Silicon bug in Atmega2560?
Meindert Sprang - 2009-05-14 07:29:00
Hi Guru's,
I have come across something weird. I have a bit of code on an Atmega2560
that does three things: is initialises two timers in CTC mode, it
initialises the SPI port to talk to an SD card and it enables the SD card
interface chip by setting PB5 high. This port pin is on the same port...Re: Searching SBC/DSP board/microcontroller; 4ADC/1kHz/USB Host
Yoreki - 2009-05-13 14:45:00
First of all, sorry for not replying for so long. I was having trouble
logging into the website, and it took a little while to get it sorted out
with the webmaster.
I had meant to reply the day you guys posted, but as I said couldn't.
I've been able to find a solution or two in the meantime:
...Re: Seeking comparisson of free RTOS for embedded
QL - 2009-05-01 09:08:00
Quantum Leaps provides lightweight, *open source*, state machine
application frameworks for embedded systems. The company's popular QP
frameworks replace or augment traditional OS/RTOS and enable direct coding
of modern UML state machines in C or C++ without big tools. QP is
especially suitable for ...Re: Bug in Avrstudio (4.16)?
LittleAlex - 2009-04-30 11:18:00
No, not a bug.
From the data sheet: "Since all AVR instructions are 16 or 32 bits
wide, the Flash is organized as 4K x 16."
The data sheet then goes on to describe important information about
the flash memory in the device. I recommend reading it.
AL
On Apr 28, 9:22 am, cell wrote:...Decent debugger for linux on embedded devices
The Real Andy - 2009-04-30 05:16:00
I have been spoilt using MS Visual Studio for the last few years. Now
I am back to using gdb and ftp'ing to the target. Tell me there is a
better way. Ie, compile, deploy and debug (think IDE). Target is
currently AVR AP7. Used ddd today for debugging on recommendation from
someone but I think I...Problems with simulation of amforth in VMLAB...
wzab - 2009-04-28 18:50:00
Hi,
I'd like to know if anybody has succeeded to simulate the AVR running amforth ( http://amforth.sf.net )
in VMLAB ( http://www.amctools.com/vmlab.htm ).
I'd like to use this setup for simple tests without using the real hardware.
Unfortunately, even though VMLAB worked perfectly with my C o...Re: Richard Stallman is responsible for the shrinking economy -- PART 2
Michael N. Moran - 2009-04-28 15:32:00
Chris H wrote:
> In message , DJ Delorie
> writes
> > Chris H writes:
> > > > Aside from the fact that they don't sue users:
> > > Cisco?
> > They sued Cisco as a distributor, not Cisco as a user. Cisco's
> > distribution was violating their license terms, and Cisco refused to...Re: What does an embedded beginner need to know?
-jg - 2009-04-25 20:47:00
On Apr 25, 11:04=A0am, Joerg
wrote:
> A newer device I checked ended up near 35ohms both H and L. It is best
> if digital stuff is designed that way because it eases fast multi-phase
> PWM controls, dead time control and so on. The H to L difference is
> mostly a remnant from the TTL day...Re: USB enumeration order
Jean-Christophe - 2009-04-24 18:28:00
On 24 avr, 00:37, Allan Herriman wrote:
> I've read the USB spec, and I still can't work out whether a bunch of USB
> devices (including hubs) is guaranteed to always enumerate in the same
> order.
> Does anyone know? =A0Even if it is not guaranteed, will the order always =
be
> the ...Re: Announcing MCU-resident software development environment for Freescale and Microchip MCUs,,,
-jg - 2009-04-20 18:36:00
On Apr 15, 4:46=A0pm, rtesta...@gmail.com wrote:
> Hi all,
> We have a number of additional MCU ports in the works presently
> (including STM32 and PIC24 -- each port takes between a day and a
> week) and are always considering others, so feel free to suggest your
> favorite platform to us...