Lpc2000

Hi,

 A bit more LPC3180 details in the data sheet at Philips website:
http://www.standardics.philips.com/products/lpc3000/pdf/lpc3180.pdf
 
thanks,
elektrknight

http://groups.yahoo.com/group/lpc3000

Arrhhh, if only it had a bootloader that could load from SD memory cards 
into internal RAM and then a secondary bootloader could then perform the 
high-level boot into external RAM. Having to implement parallel Flash 
means more chips/cost/space etc when the code would be quite happy to 
run out of RAM. Do you think that Philips will do this or does anyone 
know of an ARM that does?

Maybe I'm jumping the gun because looking at the block diagram I see 
that the SD and SPI are running off the same slave bus as the NAND Flash 
controller. Could it be that the bootloader allows a variety of devices 
to be used???

Plus, the BGA is always a pain for protos but it is the way many chips 
are going if you want the features. On the upside the power consumption 
looks modest for a 208MHz optioned-up ARM9.

Thoughts?
*Peter*



elektrknight wrote:

>
>  A bit more LPC3180 details in the data sheet at Philips website:
> http://www.standardics.philips.com/products/lpc3000/pdf/lpc3180.pdf

Umm... 
- LPC3180 loads nand flash to internal SRAM
- May be they will load from USB/SPI,I2C in future. 16KBROM inside.

Have not seen a chip that boot from SD.  but the AT91sam9261 does
boot from serial eeprom and run on 160KB internal SRAM.  Here's a
copy of what the datasheet says:

<<< Bootloader supporting a wide range of non-volatile memories
Downloads and runs an application from external storage medias into
internal SRAM:
- SPI DataFlash connected on NPCS0
- Two-wire EEPROM
- 8-bit parallel memories on NCS0 >>>

There is development kit from atmel but do not know if chip is
available. Old data sheet in QFP208 but chip now ended up as BGA317.

The LPC3180 spec is weird...Hee... I think may be marketing guys
forgot to look at what the other competitors' (Intel, Samsung,
Cirrus Logic, Atmel) chips features before coming out one.. :)
Sorry... ARM9 is some "rotten" market.
I'm curious and can someone tell me what type of market this LPC3180
is targeting at?? (What??  No LCD, No ethernet?? no...)

Anyway, most of my application requires flash memory read 
protection, and so I will be sticking to LPC21xx.

Regards

--- In lpc2000@yahoogroups.com, Peter Jakacki <peterjak@...> wrote:
>
> Arrhhh, if only it had a bootloader that could load from SD memory 
cards 
> into internal RAM and then a secondary bootloader could then 
perform the 
> high-level boot into external RAM. Having to implement parallel 
Flash 
> means more chips/cost/space etc when the code would be quite happy 
to 
> run out of RAM. Do you think that Philips will do this or does 
anyone 
> know of an ARM that does?
> 
> Maybe I'm jumping the gun because looking at the block diagram I 
see 
> that the SD and SPI are running off the same slave bus as the NAND 
Flash 
> controller. Could it be that the bootloader allows a variety of 
devices 
> to be used???
> 
> Plus, the BGA is always a pain for protos but it is the way many 
chips 
> are going if you want the features. On the upside the power 
consumption 
> looks modest for a 208MHz optioned-up ARM9.
> 
> Thoughts?
> *Peter*
> 
> 
> 
> elektrknight wrote:
> >
> >  A bit more LPC3180 details in the data sheet at Philips website:
> > 
http://www.standardics.philips.com/products/lpc3000/pdf/lpc3180.pdf
>

Peter Jakacki wrote:

>Arrhhh, if only it had a bootloader that could load from SD memory cards 
>into internal RAM and then a secondary bootloader could then perform the 
>high-level boot into external RAM. Having to implement parallel Flash 
>means more chips/cost/space etc when the code would be quite happy to 
>run out of RAM. Do you think that Philips will do this or does anyone 
>know of an ARM that does?
>
>  
>
Yes, look at the Cirrus EP930x (EP9301, EP9302, ...).  That family boots 
from an SD Flash memory, it pulls in a small amount of code from the SD 
memory (if it exists), from that little code, you can init SDRAM and 
pull in larger code from the SD Flash, eventually you will have your 
bootloader (with file system support) loaded.

This is one downside of the LPC2000 series, it relies very heavily on 
BIG Flash and small SRAM,  I'd like to see an LPC2000 chip with 512K of 
SRAM and 32K of Flash!  Couple that processor with an SD Memory Card and 
you've got one heck of an ARM system in a tiny footprint!

TomW

>Maybe I'm jumping the gun because looking at the block diagram I see 
>that the SD and SPI are running off the same slave bus as the NAND Flash 
>controller. Could it be that the bootloader allows a variety of devices 
>to be used???
>
>Plus, the BGA is always a pain for protos but it is the way many chips 
>are going if you want the features. On the upside the power consumption 
>looks modest for a 208MHz optioned-up ARM9.
>
>Thoughts?
>*Peter*
>
>
>
>elektrknight wrote:
>  
>
>> A bit more LPC3180 details in the data sheet at Philips website:
>>http://www.standardics.philips.com/products/lpc3000/pdf/lpc3180.pdf
>>    
>>
>
>
> 
>Yahoo! Groups Links
>
>
>
> 
>
>
>  
>


-- 
Tom Walsh - WN3L - Embedded Systems Consultant
http://openhardware.net, http://cyberiansoftware.com
"Windows? No thanks, I have work to do..."
----------------------------------------------------

> Yes, look at the Cirrus EP930x (EP9301, EP9302, ...).  That family 
> boots  from an SD Flash memory, it pulls in a small amount of code 
> from the SD memory (if it exists), from that little code, you can 
> init SDRAM and pull in larger code from the SD Flash, eventually 
> you will have your bootloader (with file system support) loaded.
>
> This is one downside of the LPC2000 series, it relies very heavily
> on BIG Flash and small SRAM,  I'd like to see an LPC2000 chip with 
> 512K of SRAM and 32K of Flash!  Couple that processor with an SD 
> Memory Card and you've got one heck of an ARM system in a tiny 
> footprint!
> 
> TomW
> 

Hi, 
Thanks to the Cirrus logic Chip info.   Do they have a version
with large internal SRAM (Like Sharp/Philips/Atmel) which make it
even better?
For your 512KB SRAM requirement...  May be attach a 512KB SRAM to
LPC2292 might be cheaper than chip comes with it... :)
Regards