Lpc2000

Hi Igor,

A speech recognition solution that worked out well (you probably know them)
was using Neural Network in an 8 bit, low current.
(Speaker dependent/indepdent).
I can't remember their name though, would have to quickly look it up.
Back in 1997 the problem was that their dev kit cost a load, and training it
for additional
vocabulary was expensive (they did it in-house).
I wonder how that all stands today.
I've played around quite a bit with my own NN SW, but never had proper CPU
power for it
(apart from PC).
ARM would be great to play around again with NN.
I might contact you off-list about code protection and OKI.


B regards,
Kris



----- Original Message -----
From: "Igor Janjatovic" <kodrat@...>
To: <lpc2000@yahoogroups.com>
Sent: Sunday, February 22, 2004 8:50 AM
Subject: Re: [lpc2000] Re: Code Protection


Hi Kris,

You probably won't believe me but for this project I checked every ARM7
solution that exists on this planet :)
Data Sheets, Application Notes, User Manuals. Thousands of pages. You name
it - I downloaded it. I guess that's what R in R&D is all about :)

Including Sharp. Just to mention that Hynix has similar solution. I even
checked Aeroflex (military and aerospace solutions)!

Thing is that I need speech recognition. I planned to use VA SDK for ARM7,
but today, after evaluating 483 pages of VA SDK User Manual, I just realized
that VA can't support so called Continuous Listening. It means that I will
probably use their RSC4k MCU, which is speech recognition dedicated chip.
Tools are free for download (IDE and assembler and many examples) and
Evaluation Board is only $150. Problem is that it requires external program
memory and at least one serial EEPROM to store recognition patterns. Also,
it is $15 device, so I tried to avoid it but with no success.

Anyway, now when RSC4k is the only choice, I don't need ARM7 anymore
(consumes too much current). I will switch to good old PIC18 core. It has
enough processing power to deal with everything (except speech recognition).
dsPIC family won't be introduced so soon as I expected so that solution is
not appropriate. Also, release date for dsPIC speech recognition library
from Microchip is still unknown.

When it comes to LCD, we have custom LCD designed for us with integrated LCD
driver/controller (on tab) so no problem with that.

Everything else is pretty much standard.

Thank you for your suggestion.

List of all solutions that have integrated any kind of ARM processor can be
found here:
http://www.arm.com/support/where_to_buy.html
But there is only link to:
http://www.arm.com/miscPDFs/1668.pdf

On the other hand, on ARM's web site you can find this document:
http://www.arm.com/miscPDFs/3858.pdf
Which is more up to date!
I don't remember how I managed to find this 3858.pdf document??? I have it
on HD but where it came from??? :))

That's what happens after downloading couple hundred mega bytes from
Internet :)

Regards,
Igor

  ----- Original Message -----
  From: microbit
  To: lpc2000@yahoogroups.com
  Sent: Saturday, February 21, 2004 4:16 PM
  Subject: Re: [lpc2000] Re: Code Protection


  Hi Igor,

  I have a mate who's raving on about Sharp, have you looked at them ?
  They have on-board color-BW LCD controller, PS/2 etc.

  http://www.sharpsma.com/sma/products/MCUSoC.htm

  > is very painful, at least it is for me. When compared to Microchip,
dealing
  > with LPC2k is like doing time in jail. Maybe I'm just spoiled but
dealing
  > with 240x160x16shades-of-gray graphic LCD, RS485 network, speech
  > recognition, IrDA, ultrasonic flow meter, PMR446 radio receiver and all
of

  Here's an excerpt of the Bluestreak overview :

  ".......
  The 16/32 bit BlueStreak MCU/SoCs offer higher performance than ordinary
16-bit MCUs.
  Utilizing the ARM7TDMI core with 32KB of on-chip SRAM, Color and grayscale
LCD controller,
  plus three UARTs, SPI, CAN 2.0B, three 16-bit Counter/Timers, A/D
Converter, Watchdog Timer and Low Voltage Detector,
  they are an excellent solution to speed-versus-cost concerns.
  Applications include GPS, PDA, Printers / Copiers, Security Control
Panels, and Smart Appliances.
  The 32-bit series of BlueStreak MCU/SoCs begins with the LH79520, which
combines a 32-bit ARM7TDMI RISC core
  with 8KB Cache, MMU, color LCD controller, and 32KB SRAM. Also included
are a number of essential peripherals
  such as a DMA Controller, Serial and Parallel Interfaces, Infrared
Support, Counter/Timers, Real Time Clock, Watchdog Timer,
  Pulse Width Modulators, and an on-chip Phase Lock Loop. For more power,
the LH7A400 and LH7A404 SoCs build on this basic
  feature set with ARM9 cores and add highly-desired functionality like USB
and MMC.
  With their high performance and integration, the 32-bit BlueStreak devices
are a great choice as a basis for handheld devices
  like GPS, Games, PDAs, Pocket PCs, and Media Players.
  ......"


  Seems they're parts w/o on-board program memory though, I haven't looked
  close enough.

  -- Kris



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