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:
But there is only link to:
On the other hand, on ARM's web site you can
find this document:
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: microbitSent: Saturday, February 21, 2004 4:16 PMSubject: Re: [lpc2000] Re: Code ProtectionHi 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.> 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 ofHere'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 corewith 8KB Cache, MMU, color LCD controller, and 32KB SRAM. Also included are a number of essential peripheralssuch 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 basicfeature 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 deviceslike GPS, Games, PDAs, Pocket PCs, and Media Players......."Seems they're parts w/o on-board program memory though, I haven't lookedclose enough.-- Kris