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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 922 threads matching "dsp"
You are looking at page 1 of 24.
The most relevant threads are listed first
Re: pseudo random number between X and Y?
rickman - 2009-11-18 15:18:00
On Nov 17, 9:33=A0am, Vladimir Vassilevsky wrote:
>
> Abandon this task. It is not for the sorrow programmers like you.
>
> Vladimir Vassilevsky
> DSP and Mixed Signal Design Consultanthttp://www.abvolt.com
Even with all the spam I have to parse through on the Google groups
page, ...
Re: Superscalar embedded processors?
2009-11-15 00:40:00
Richard Flach writes:
> I am wondering if there are now already the first superscalar
> processors available for the embedded market?
Have been for a while now. The Toshiba MeP with IVC2, for example,
can run up to 3 different insns per cycle, and the MN10300 has some
dual-opcode enco...Re: ADS1251 and 8051 Code
Joey.G - 2009-11-13 01:03:00
On Nov 13, 5:16=A0am, Vladimir Vassilevsky wrote:
> Bill Davy wrote:
> > ADS1251 and 8051 Code
> > Has anyone done this who can share the code? =A0Just to save me time.
>
> Yes.
>
> > Any gotchas?
>
> Time is money.
>
> > I'd also quite like not to take every sample so I...Re: What coding standard are you using for C?
Not Really Me - 2009-11-06 10:59:00
Vladimir Vassilevsky wrote:
> Geek wrote:
> > What coding standard are you using for C (if any)?
> >
> > Like naming variables, functions, constants, globals, locals, types
> > etc.? for example:
> >
> > MyFunction();
> > myFunction();
> > My_Function()
> > my_function()
> >
>...FPGA Soft Core CPUs
Jack Klein - 2009-11-05 23:00:00
Parts obsolescence is biting again, and at least one of my EEs is
insisting that we spin replacement boards with soft-core processors in
FPGAs.
There are several things I don't like about that.
First, how robust are these systems. What if power is lost during
updating the configuration dev...servo motor controller using dspic
vibz86 - 2009-11-04 08:56:00
Hi, I have to control 2 servo motors with dspic30f3011. I came across a
sample code which I have attached below. Im finding it really difficult to
understand it and customize it according to my needs. Can some one explain
to me whats the code doing (I can of course understand all the
initialization ...Has anybody used embedded Linux on a single TI 67Xx DSP?
mi1980 - 2009-10-27 07:06:00
Dear all,
Anyone succeeded in installing TinyOS or similar OS in a TI67xx DSP (in
particular TMS320C6727)?
My final purpose is to install Corba and/or IEEE1451 in a custom board with
6727 DSP as the single microprocessor.
Thanks,
mi1980
---------------------------------...Embedded Systems Project with TI DSP Kit
kattutg1 - 2009-10-25 17:19:00
Hello All,
I am having these two kits, and none of them used extensively till now.
1) TI 6713 DSP Kit.
2) Renesas QSK26A
Would like suggestions on any simple project that i can make using these
two together. I am really not sure if the question itself is reasonable.
If not can you give ...Re: Anyone know of a micro w/ these features?
apalopohapa - 2009-10-21 06:51:00
Microchip dsPIC33FJ64GP706 if MIPS are not critical. Has DMA for CAN and
other peripherals. 12-bit adc.
> dawydiuk skrev:
> > Hello,
> >
> > I'm looking for a micro-controller that has the following features, but
I'm
> > having a heck of a time finding one.
> >
> > -CAN bus
> > ...Please tell me what is the cheapest ARM with my request ip(100K annual)
rickee - 2009-10-11 09:41:00
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), another is
buy ARM with specify IP...Re: dsPIC33 GPIO DMA
Cesar Rabak - 2009-10-09 20:25:00
Thomas Magma escreveu:
> Is it possible to hook up a 16 bit parallel ADC to the GPIO pins on a
> dsPIC33 and have it stream into the DMA RAM?
>
There is logic inconsistency in your question: if the ADC is hooked up
to the I/O pins how can it access the RAM via DMA?
--
Cesar Rabak
...I2C Driver for DSP/BIOS
ejkrohne - 2009-10-09 15:47:00
I've been in the embedded area for quite some time. I am currently running
DSP/BIOS on a TI F2801.
I am having trouble accessing an EEPROM over I2C.
I saw a thread that mentioned a DSP/BIOS driver for I2C and was wondering
if I could get the source to modify for my application.
I need to be...Re: Encoder programming
Spehro Pefhany - 2009-09-24 11:28:00
On Thu, 24 Sep 2009 11:11:05 -0400, Rich Webb
wrote:
> On Thu, 24 Sep 2009 08:56:26 -0500, "vibz86" wrote:
>
> > Hi folks,
> > Im having great trouble in pic programming and hope someone can help me.Im
> > designing a motor controller circuit using pic 16f877a. Iv got a single
> > en...Re: Developing/compiling software
David Brown - 2009-09-24 04:09:00
ChrisQ wrote:
> Chris H wrote:
>
> >
> > If that were the case there would be a problem but so far most of the
> > open source compilers are no where near as good as the top commercial
> > ones.
> >
>
> I'm sorry, but you need to be more specific in terms of *how* they are
> b...Need some advices
ju - 2009-09-23 07:21:00
Hi folks, I'm looking for a micro controller for an embedded project.
I need for this project 3 UARTs and an external memory controller for
1MBytes (probably RAM) but a DSP is not necessary because I'll not have to
deal with heavy calculations.
I've found the Atmel SAM3U2C
(http://www.atmel.com/...Camera with integrated DSP
poly_99 - 2009-09-18 09:41:00
Hi!
I'm looking for a camera with some integrated DSP onboard. So far i've
seen the CMUCam III and that looks good, but is there anything else
available?
What i want to do is set up a camera to track a table football table
(foosball table) and then output the state of the ball and players. Th...Re: Video Capture and storage
larwe - 2009-09-10 17:17:00
On Sep 10, 5:08=A0pm, Neel wrote:
> I am looking at building a system that will capture SVGA or better
> video from a USB camera encode in H.264 or Theora, and save to an High
> Density SD Card 32GB. The system will be battery (maybe solar)
> operated, so control of the camera or contro...Re: Software architecture using C for mid-range PIC.
Neil - 2009-09-10 00:22:00
Vladimir Vassilevsky wrote:
>
>
> Fevric J. Glandules wrote:
>
> > I've got quite a lot of experience in programming 8 bit microcontrollers
> > with assembler; I've also done quite a lot of 32 bit embedded stuff
> > using an RTOS with C. What's new to me is using a 16 bit mid-range...Re: 16-bit SPI trying to read from 22-clock cycle ADC
krw - 2009-09-09 00:10:00
On Tue, 08 Sep 2009 15:53:43 +0200, Bill wrote:
> Hi,
>
> I'm trying to pull out data from the ADS8320 (a 16-bit ADC by Analog
> Devices. See bottom of page 10 in
> http://focus.ti.com/lit/ds/symlink/ads8320.pdf ) using the SPI in an
> AT91SAM7S256. The problem is that the ADC needs 6 ex...Re: Debugging TMS320, Step 1
Radly - 2009-08-22 11:27:00
>
> "Olimex" schreef in bericht
> news:1527ff5d-4ae7-4221-b254-33c93a69ffc9@k30g2000yqf.googlegroups.com...
> On 17 ???, 14:27, "Radly" wrote:
> > I maintain the code for a controller based on the TMS320R2811. My
system
> > uses the boot loader to download the execuable code from a hos...Re: Info From A Lead Acid Battery On An Engine?
1 Lucky Texan - 2009-08-17 14:07:00
On Aug 17, 12:18=A0pm, Vladimir Vassilevsky wrote:
> eeboarder wrote:
> > I am developing a system that is powered from a 12V or 24V lead acid
> > battery configuration on an industrial engine. These are the same lead =
acid
> > batteries used in vehicles. The batteries or battery wil...Re: RS485 - MODBUS or PROFIBUS or ....
Rumpelstiltskin - 2009-07-22 10:03:00
Vladimir Vassilevsky wrote:
>
>
> eeboarder wrote:
> > I am going to work on a project involving multiple devices on the same
> > network(3 or more). One device will have user input and display(master).
> > The other devices(slaves) will just collect sensory data and possibly
> > pro...Re: Discrete GPRS
Paul Keinanen - 2009-07-13 14:01:00
On Mon, 13 Jul 2009 09:45:04 -0700 (PDT), larwe
wrote:
>
> Debugging these designs at the software level isn't sufficient, you
> need considerable RF equipment and man-hours. Just a spectrum analyzer
> and signal generator covering the right frequency range and with the
> features you ne...Re: "Filtering" pointing device data
D Yuniskis - 2009-07-09 14:31:00
Hi Tim,
Tim Wescott wrote:
> On Tue, 07 Jul 2009 11:55:05 -0700, D Yuniskis wrote:
>
> > I'm looking for ideas on how best to implement a "filter" for
> > preprocessing of 2D point data (x,y) from a "pointing device".
> >
> > Pointing devices can include things like mice, digitizing ...Re: Hi-Tech Software bought by Microchip - no more other compilers
larwe - 2009-07-09 10:24:00
On Jul 9, 8:26=A0am, David Brown
wrote:
> easily available, even within professional markets. =A0They (or third
> parties) can profit from charging for /better/ tools - but only
> providing bad tools for free is, IMHO, a silly strategy.
Really, you're ignoring a 500-pound gorilla. The...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: PWM -> Audio Output
eeboy - 2009-06-11 18:52:00
> eeboy wrote:
>
> > I am using a PWM output on my micro to produce audio from headerless
WAV
> > (RAW) files. The audio output works but the quality is not quite
there.
>
> What kind of audio quality do you expect? The approach depends on that.
>
> > By
> > that I mean that there ...Re: It's Spring, when a young man's thoughts turn to
krw - 2009-06-08 20:35:00
On Mon, 8 Jun 2009 14:39:45 +0100, "Duplic"
wrote:
>
> "krw" wrote in message
> news:v51p259t17j52cs8n75c2r127g66kffdbd@4ax.com...
> > On Mon, 8 Jun 2009 04:04:23 +0100, "Duplic"
> > wrote:
> >
> > >
> > > "krw" wrote in message
> > > news:k5pn25hebn8h9m5cpesdgdhdmaa5tf...Re: It's Spring, when a young man's thoughts turn to
Duplic - 2009-06-08 09:39:00
"krw" wrote in message
news:v51p259t17j52cs8n75c2r127g66kffdbd@4ax.com...
> On Mon, 8 Jun 2009 04:04:23 +0100, "Duplic"
> wrote:
>
> >
> > "krw" wrote in message
> > news:k5pn25hebn8h9m5cpesdgdhdmaa5tf0l5n@4ax.com...
> > > On Sat, 06 Jun 2009 21:32:11 -0400, "Michael A. Terr...Re: It's Spring, when a young man's thoughts turn to
Duplic - 2009-06-07 23:04:00
"krw" wrote in message
news:k5pn25hebn8h9m5cpesdgdhdmaa5tf0l5n@4ax.com...
> On Sat, 06 Jun 2009 21:32:11 -0400, "Michael A. Terrell"
> wrote:
>
> >
> > krw wrote:
> > >
> > > On Sat, 6 Jun 2009 16:08:58 -0700, "Rumpelstiltskin"
> > > wrote:
> > >
> > > >
> > > > "k...booting through NOR flash
paddu - 2009-05-27 13:36:00
Hi,
Is it possible to BOOT OMAP_L137 from 16bit NOR Flash？
The bootloader document "SPRAB04B" states that
"the bootloader configures EMIFA for
8-bit access and reads the first word from the NOR Flash"
Does this require a different settings with DSP and Flash
for the first 8 bit access...Gumstix: GPP, DSP, GPU?!
2009-05-14 10:24:00
Hi all, I read through the gumstix wiki but I still dunno where to
start if I want to generate PWMs and read a few ADC with Gumstix
Overo.
I see that Overo has GPP, DSP and GPU. Up to my understanding, is
it...
GPP runs above all, and GPP governs DSP and GPU to do different tasks?
For exampl...Re: Generating sound at microcontroller pin using pwm
Rohit - 2009-05-14 08:20:00
On May 14, 4:37=A0am, Vladimir Vassilevsky
wrote:
> Rich Webb wrote:
> > On Wed, 13 May 2009 17:32:51 +0200, Legato wrote:
> > > Rohit wrote:
>
> > > > I am working on a hobby project to generate sound effects with 89c2051
> > > > using PWM. I am able to generate keyboard notes w...Searching SBC/DSP board/microcontroller; 4ADC/1kHz/USB Host
Yoreki - 2009-05-07 16:21:00
Hello,
I am looking for something along the lines of a Single Board Computer
(SBC), a Digital Signal Processing (DSP) board, or a microcontroller.
Though I am open to any other suggestions, but what I essentially need to
be able to do is the following.
Requirements:
- 4 channel ADC
- Samp...Re: Fastest Processor Under 1W?
2009-05-06 01:05:00
> On May 5, 9:22 am, Chris Maryan wrote:
>
> > On May 4, 2:21 pm, rickman wrote:
> >
> > > On May 4, 12:22 pm, Chris Maryan wrote:
> > >
> > > > Hello All,
> > > > I'm evaluating some embedded processor options and was wondering
> > > > what
> > > > the best options ar...Re: Fastest Processor Under 1W?
Chris Maryan - 2009-05-05 14:52:00
On May 5, 10:11=A0am, Walter Banks wrote:
> Chris Maryan wrote:
> > Quite seriously, the options are pretty open. The application is
> > embedded control, a platform for controlling a range of products. True
> > DSP isn't required, but if I can do MACs efficiently and have some
> > ...High-speed signals crossing a split-ground
ee_ether - 2009-05-03 22:06:00
Hi,
I'm working a design that has isolation between two sub-systems on one
PCB (the grounds are separate). One side is a "high-speed" digital
side with FPGAs and DDR doing DSP and the other side is an analog side
that has high-resolution 24-bit ADCs and DACs.
I'm planning on using DC-balan...Re: What does an embedded beginner need to know?
Joerg - 2009-04-21 20:07:00
Mike Silva wrote:
> I've been asked to write a tutorial to introduce people who have had a
> bit of programming experience to embedded hardware and software. I
> can think of plenty of material for such a tutorial, but I don't want
> to miss something important, or treat my particular backg...ARM using Code Composer Studio
patki.onkar - 2009-04-16 07:48:00
Hi All,
I am working on DM6467 which is having ARM and DSP processor in it. I am
very new to ARM and code composer studio. I need to program ARM via code
composer studio using emulator.
can somebody provide me some examples of ARM code using code composer
studio or some start guidelines for th...Re: A Puzzle for Today
Jerry Avins - 2009-04-06 12:18:00
Vladimir Vassilevsky wrote:
>
>
>
> > Vladimir Vassilevsky wrote:
> >
> > > We have to transmit RS-232 by the AC coupled line. Hence the signal
> > > has to be DC balanced, i.e. have equal amount of ones and zeroes. How
> > > many bit combinations like that can be made of one by...