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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 835 threads matching "dsp"
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XMOS XC-1 kits are shipping
Leon - 09:01 10-10-08
I've just ordered my 1600 MIPS XMOS XC-1 design kit.
The XMOS chips will replace DSPs and FPGAs in a lot of applications.
I haven't been so excited about a new chip since the transputer came
out. David May designed them both, of course.
Leon
leon355@btinternet.com
...
Lattice vs Altera (Mico32 / NIOS)....or?
FreeWheel - 15:11 09-10-08
Hi everybody,
First off all...sorry for cross posting this to both arch.fpga and
arch.embedded, but I think it fits in both places.
I'm currently in the selection fase of an FPGA vendor. we need a > 2M
gate chip with DSP capabilities, SERDES and offcourse the mandatory
low cost. Likewise we...Re: Fate of PIC32 If Microchip buys Atmel MPU business.
14:10 06-10-08
On Oct 6, 11:43=A0am, linnix wrote:
> On Oct 6, 8:51 am, Dan Ash wrote:
>
> > Not that anyone can do anything but guess what might happen, but if
> > Microchip buys Atmel's MPU business, what is the prognosis for the
> > PIC32. =A0I bought some PIC32 tools and invested time learni...Change the built in demo PIC
tarek.attia - 08:37 06-10-08
Colleagues,
i do have a dspic30f4012 and i downloaded FREERTOS demo application
V5.0 and when i change the pic33 to dspic30f4012 errors appear ,i
changed the include in the freertosconfig.h , changed the linker
script but still have problems in compiling?? please wht should i do
...Re: Microchip & OnSemi want to buy Atmel?
Jim Thompson - 12:07 05-10-08
On Sun, 5 Oct 2008 11:00:59 -0500, "Anthony Fremont"
wrote:
> Jim Thompson wrote:
> > On Sun, 05 Oct 2008 10:40:45 -0500, Vladimir Vassilevsky
> > wrote:
> >
> > >
> > >
> > > Wilco Dijkstra wrote:
> > >
> > > > Experienced programmers don't need to be restricted by a lan...Re: Microchip & OnSemi want to buy Atmel?
Anthony Fremont - 12:00 05-10-08
Jim Thompson wrote:
> On Sun, 05 Oct 2008 10:40:45 -0500, Vladimir Vassilevsky
> wrote:
>
> >
> >
> > Wilco Dijkstra wrote:
> >
> > > Experienced programmers don't need to be restricted by a language
> > > in order to write safe and reliable software.
> >
> > Yes, of course....Re: Which development board and LCD? [ Openpandora ? ]
=?windows-1252?Q?Glenn_M=F8ller-Holst?= - 09:00 04-10-08
abcd12 wrote:
> Hi!
>
> I am building a simple monitoring system, that would read data from few
> sensors and display them on a colour 320x240 LCD. As far as the
> microcontroller goes, I'll probably go with ARM9 or ARM7. Do you have any
> suggestions about the development board and LCD...C6713 DSK issue
ratemonotonic - 08:51 01-10-08
Hi All ,
I am starting off using the C6713 DSK (latest rev D). I am having some
problems sampling and doing some signal processing in the ISR. If I
add 1) two multipliers 2) 2 FIR filters( both 31 taps) 3)
downconverter into the ISR, then it looks like the DSP is not having
enough time betwe...Re: Need good quality Audio output through LPC21xx controller
11:40 30-09-08
On Sep 30, 6:56=A0pm, Vladimir Vassilevsky
wrote:
> angadd...@gmail.com wrote:
> > We are working on a project based on Vehicle tracking system.In one of
> > our module we are using audio(voice) =A0for Public transport =A0system.=
As
> > if for now we are using =A0filters and a power...Re: 40 core embeddified processor
42Bastian Schick - 01:52 29-09-08
On Sat, 27 Sep 2008 00:47:43 +0100, "Wilco Dijkstra"
wrote:
> > The web site doesn't make a compelling case for applications that
> > could effectively use this processor. Compare this processor with
> > the parallax Propellor for example. The parallax processor is far
> > more flexibl...Costas Loop
ratemonotonic - 11:44 15-09-08
Hi All ,
I am new to Digital comms and I am learning to implement costas loop
in software. I have read a lot of theory and I am using a DSP library
to implement Costas loop. I have a NCO that take the an error output
from a loop filter whose alpha is configurable. I also have two LPF
for th...Re: Has anyone heard of corepcb?
TT_Man - 07:47 11-09-08
>
> No idea on corepcb.
>
> Used pcbcart only the once for a couple of simple dspth boards x 50 each.
> V/good price, delivered on time and well packaged, they were good quality
> for my needs. They even promptly answered email enquiries which suprised
> me. HTH.
>
I use pcbcart a...New sub-$2.00 60MHz Piccolo C2000 Family from Texas Instruments
Bill Giovino - 15:41 09-09-08
Texas Instruments has introduced a new C2000 32-bit microcontroller family:
http://www.microcontroller.com/news/Texas_Instruments_Piccolo.asp
Codenamed Piccolo, it has the performance of a DSP with the ease-of-use of a
Microcontroller architecture. It also has an FPU - not bad!
The news ar...Re: Used interrupts on both 68k & PIC, want 68k w/onboard memory & JTAG/BDM
larwe - 11:05 06-09-08
On Sep 6, 10:37=A0am, Didi wrote:
> Perhaps someone familiar with both families could comment,
> I am not that familiar with ARM and you don't seem to be
> very familiar with CF. Actually I have yet to become very
My point is that there needs to be a compelling reason to choose a
prop...Semiconductor/Hardware Career Opportinity in Telecom Giant (top 5) -Santa Clara
JackChang - 11:31 28-08-08
Hi,
Our client, a top 5 telecom giant, have following openings in Santa
Clara office. Please send your resume to jackchang@jobirn.com if you
are interest, please include the position title.
Email: jackchang@jobirn.com
==============================
Position List:
1. Senior/Principal A...Re: embedded processor with large memory support
David Brown - 16:06 14-08-08
Michael Chapman wrote:
> tns1 wrote:
> > Paul Keinanen wrote:
> > > On Wed, 13 Aug 2008 11:44:43 -0700, tns1 wrote:
> > ...
> > > If you already require a 32 bit integer processor, are you sure you
> > > need HW floating point ?
> > >
> > > With 32 bit integer hardware single prec...low pass digital filter on a fixed point microcontroller
Johnny Chang - 13:14 05-08-08
So I have a microphones that takes in sound and transmits them back to
me, but I also perform analysis on them to find directionality on an
AVR which uses fixed point arithmetic. Due to the spacing, I've found
that I need to actually cut off frequencies a lot earlier than I
wanted and am thinki...Re: New Yahoo Group for Blackfin DSP/MCU
00:48 03-08-08
In article , Vladimir Vassilevsky wrote:
>
> problems@gmail wrote:
> > Vladimir Vassilevsky wrote:
> >
> > > I've been doing the designs with Blackfin since 2003 and still do,
> > > and I can tell you that Blackfin is same as crap as all other MCUs
> > > and CPUs.
> >
> >...Re: arm9 memory throughput
Wilco Dijkstra - 08:35 31-07-08
"Nils" wrote in message news:6fdfdvFb271lU1@mid.uni-berlin.de...
> Hi folks.
>
> I'm working on an ARM9 system (the DaVinci). Yesterday a workmate and I made some tests to measure the memory speed of
> the system and we wonder a bit about the numbers we get.
>
> In short the system...Re: Procyon Library for Atmel AVR MCU - =?ISO-8859-15?Q?I=B2C?= problems
=?ISO-8859-15?Q?R=FCdiger?= - 14:50 30-07-08
First of all: Thank you for the code!
The reason why I use the Procyon-Library is because I shall use it - for
following projects will use more and more of it's functions - and it's
deemend unnecessary that I - literally - re-invent the wheel with all the
functions that will be needed with fut...Re: Recommendations for a Quadrature Decoder IC or MicroController
Peter Harrison - 04:58 30-07-08
benn wrote:
> I have an atmega16 that interfaces to a motor with a quadrature
> encoder sensor. Turns out the frequency of the pulses are much more
> than my little 4Mhz can handle (the micro does other things as well!)
> As a result, the motor control isn't very accurate, nor does it reac...Re: 32-bit Microcontroller for $1.00
Jim Granville - 19:09 22-07-08
Wilco Dijkstra wrote:
> "Jim Granville" wrote in message news:4884e753$1@clear.net.nz...
>
>
> > Conclusion: Yes the M3 is significant, but it is a
> > _very_ long way from dominating the MCU market, it is not even
> > close to dominating the 32bit MCU market.
>
>
> "M3 is sign...Re: ANNOUNCE: TimingAnalyzer version beta 0.87
rickman - 23:21 19-07-08
On Jul 19, 7:37 pm, Jerry Avins wrote:
> CBFalconer wrote:
> > timinganalyzer wrote:
> > > rickman wrote:
> > > > timinganalyzer wrote:> Hi All,
>
> > > > > A new version of the TimingAnalyzer, beta 0.87, is now
> > > > > available. The following improvements and chang...Re: Low cost solution to program Spartan 3AN DSP development board AES-SPEEDWAY-S3ADSP-SK Opzioni
MikeWhy - 15:55 16-07-08
"Etantonio" wrote in message
news:5f0f995f-81e1-49e0-b9f0-996d85cd6a64@l42g2000hsc.googlegroups.com...
> I'm in trouble,
> do you think that could be possible to program the FPGA from ethernet
> for this board ?
Not directly. Some combination of one of the many mpu's with embedded
et...Brushed DC motor control, low speed, variable torque
greginfinity - 16:36 14-07-08
I am working on a PID control loop for a brushed DC motor, and everything
works fine and dandy at high speeds. However, the system see a wide
variety of loads, even at low speeds, and I am having trouble controlling
this situation. I have used a gearbox and this obviously helps out a ton,
but am w...Low cost solution to program Spartan 3AN DSP development board AES-SPEEDWAY-S3ADSP-SK Opzioni
Etantonio - 05:07 11-07-08
I'm trying to renew my experience on fpga so last week I buy a
Spartan 3AN DSP development board
AES-SPEEDWAY-S3ADSP-SK from Silica for about 235euro.
But I've not the cable to program it, so I ask to Silica that suggest
me the
http://www.xilinx.com/products/devkits/HW-USB-G.htm
for 140 euros ...convert 16 bit port to Char
Thomas Magma - 14:24 03-07-08
Hello,
I'm programming in C on a dsPIC33F and I'm trying to find the most efficient
way to save a 8-bit signed value found on the LSByte of PORTD to a CHAR.
That is, the lower byte of PORTD contains a signed integer that is 8-bits
wide and I need to save it to a CHAR data type. I don't care...Re: Faster than TI C2000?
Vladimir Vassilevsky - 19:54 02-07-08
Chris Carlen wrote:
> Even though I am able to do what I want with the existing 150MHz
> TMS320F2812 digital signal controller (DSC), I am always eager to have
> more speed, since applications that were otherwise inconceivable may
> become possible if more speed becomes available.
...Re: NAND flash misery
Habib Bouaziz-Viallet - 02:39 29-06-08
Le Fri, 27 Jun 2008 11:10:29 -0500, Vladimir Vassilevsky a écrit:
> Since the flash iself is hidden behind the IDE interface and
> a compatible file system, and the read/write performance is critical, it
> is generally impossible to apply an error correction scheme.
"... generally imposs...tiny inductor with every bypass cap?
Talal Itani - 12:06 21-06-08
Hello,
I was looking at the schematics for a DSP-based board, running at 100 MHz.
They have a tiny inductor with every bypass cap around the DSP. Do you
think this is necessary? This DSP has analog stuff built-in. If we do not
need analog, can the inductors be eliminated?
Thanks,
T.I...Re: a PC Based Oscilloscope?
Talal Itani - 10:22 21-06-08
We are developing a board with a DSP, some logic, and some analog circuitry.
The scope will be used to debug the circuit, make sure signals are clean,
make sure timing is correct. We should get a 4-channel 350 MHz scope, yet
these start at $7,000. So, I thought maybe a PC-based scope wou...Re: Sample DOSFS disk image file for testing
robertwessel2@yahoo.com - 12:57 18-06-08
On Jun 17, 8:50=A0pm, Vladimir Vassilevsky
wrote:
> robertwess...@yahoo.com wrote:
> > My mistake - I was editing and got a FAT16 comment mixed in with the
> > FAT32 comment. =A0FAT32 volumes cannot be smaller than 32MB, and FAT16
> > volumes must be smaller than 2GB. =A0FAT32 volumes...Re: Global Variables
Tim Wescott - 15:02 17-06-08
John Speth wrote:
> > I'm working on code that requires the use of large number of global
> > variables. To restrict access I'm thinking of making the globals read only
> > in all source files bar the file that writes it.
> >
> > The construct I would like to implement uses two declaration...SDR DSP Development board
ratemonotonic - 10:16 13-06-08
Hi all ,
I have a requirement for a DSP board for development of SDR
applications. The carrier frequency we are looking at is max 8Khz so
there is no IF required, we can sample data straight in. The boards
that I have found are mostly with ADCs with high sampling rate
( ~56Mhz). I require som...Re: Adding USB thumb-drive support to existing product
greginfinity - 17:50 12-06-08
I just got done interfacing a GHIelectronics uALFAT to a dsPIC to be able
to bootload from a USB key. Not too bad (other than writing the part to
digest the HEX file and write to flash). It is probably going to be an
additional $12 when all said and done in quantity for the project since you
have ...Re: What Serial Link to use
18:40 09-06-08
On Jun 9, 6:20 am, "Jalon" wrote:
> In other words i find easy to understand these protocols individually but
> when it comes to design/architect a system what points will help me in
> going one of these protocols.
Something I would add is the the asynchronous protocols work well
betw...Re: Simple but reliable checksum for small controllers
Tauno Voipio - 14:28 09-06-08
Vladimir Vassilevsky wrote:
>
>
> Tilmann Reh wrote:
>
> > for an integrity check of the program code for small controller (8051
> > derivatives), I am looking for an efficient checksum method.
>
>
> CRC is the most reliable method for a given number of check bits.
>
> > ...Re: DSP recomendation
Chris Carlen - 17:23 02-06-08
Joel wrote:
> I'm looking to create a portable stereo audio device. This system is
> exactly what I am looking for:
>
> http://www.amis.com/products/dsp/belasigna_200.html
>
> However the evaluation and development tools are thousands of dollars
> which puts it out of reach. Can so...Re: Stack Overflow Detection
Richard Phillips - 13:18 30-05-08
Vladimir Vassilevsky wrote:
> Richard Phillips wrote:
> > Hello all,
> >
> > I'm thinking about implementing the above in a system I'm working
> > on, does anyone have a good strategy for doing this?
>
> Look into the map file. A sensible linker will provide the call tree
> with the ...DSP Libraries
ratemonotonic - 11:42 27-05-08
Hi All ,
Are there any opensource/commercial DSP libraries available?
Specifically for Digital communications?
BR
Rate
...