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Re: Grad. student needing a project idea & data for SPII
May be kind of dry, but how about echo cancellation. With the advent and penetration of VOIP into the marketplace, there needs to be better and more cost effective cancellation solutions....
Just a thought.
Re: TI VS ADI.
Good point mrmontreal. The overall commercial support for TI DSP is, without hesitation, leaps and bounds ahead of the available tools for the ADI Blackfin series.
Hopefully, with the big push by ADI into the Blackfin series of DSPs, they will rapidly gain acceptance in terms...
Re: TI VS ADI.
The GNU toolchain for the Blackfin is what I'd call an Alpha. It is very buggy and does not perform optimisation correctly. It does work enough to get things done in the hopes of further toolchain releases.
However, this is still a leap ahead of GNU TI toolchains.
The ADI...
Please uncle_urfi, I think the point of this forum is to share knowledge. For one, I am a relative newbie to IC design. I do enjoy reading everyones comments and always glean some useful information. "Taking an appropriate course in IC design" may not be an option for some of us. So, we have...
Re: VOIP ICs?
There are several open source VOIP stacks (such as Voivida) available with at least a PCM codec. It just means that it might take a little work to port it to your specific platform. Where as, the Telogy solution is a "ready to implement" solution.
Loki
Re: VOIP ICs?
Yea, went down this road with TI's VOIP solution. The target price per device is very inexpensive (~5 per unit with IP indemdification) but you are tied into the telogy solution. That is, you use the VOIP solution as they provide it and you cannot add or change the internal...
demo board bf561
Try arrow.com. Click on advanced search and enter the part number for the eval. board. There you should be able to order on-line.
Loki.
Re: Can you give some advices how to learn the Digital Signa
I agree with arunmit168. Learning DSP takes on severl different levels of effort. Get a high level overview of the concepts first.
With some effort, anyone can implement an FIR filter in code with the high level overview.
To truely...
dsp demo board
I bought one these before the promotion at the list price. I'll probably get a couple of more at the $99 discount. The board works well, the embedded JTAG USB is very slow (compared to the TI / spectrum digital), however. And, the full-up dev. software and emulator are $$$$.
A...
eeprom for xilinx
Check Xilinx site for the ACE series of configuration devices. I'm currently using the ACE MPM which has a parallel interface with success (it's fast too).
The ACE MPM contains a small CPLD, a standard FLASH memory, and a small configuration FPGA all in one package. It...
I haven't used the latest invocations of the Microblaze or Nios cores but I did try them both when they were first released.
From my experience, the NIOS core and software package is much, much, easier to set-up and use. I had a system running in a couple of hours with the core, parallel port...
Hand reflow
By the way, the good hand reflow systems have an alignment function using a split-mirror arrangement. This allows you to precisely align chips to the pads on a PCB (including BGA). I wouldn't get one without this feature.
Once again, see Metcal to get an idea of what is offered...
Reflow at work.
If you're not talking super fine pitch smt or BGA, a good soldering iron setup with a fine tip (such as Metcal) and a Binaural microscope can do wonders. Although, the job may be tedious without reflow.
For BGA you will need a reflow system of some sort (metcal has a really...
suggestion
You'll generally get better results using the microvia in pad method. Blind vias seem like an expensive option. Don't really know what manufacturers can handle blind microvias.
You may be better off adding a couple of additional ground planes for the additional cost of the...
Couple of comments
I haven't used the stratix device yet, but some comments.
I've found that similar designs end up using less of the FPGA for Xilinx Virtex-II devices and have been able to achieve 120+ MHz synchronous logic for the slowest parts but the Altera Software is much easier and is...
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