[En-Nut-Discussion] Re: [En-Nut-Announce] Version 3.4.2 Available

[Jesper Hansen]

The reason I suggested the Philips chip is exactly because it doesn't
have any external buses, and are suited for small embedded systems.
That's where I think Nut** fits in perfectly. 

I know the OKI chips, and there are many others, but most of these
have the option of megabytes of Flash and RAM and are probably
more suited for running Linux (as you suggest yourself).


/Jesper
www.yampp.com

----- Original Message ----- 
From: "Rick Collins" <ethernut at arius.com>
To: "Ethernut User Chat (English)" <en-nut-discussion at egnite.de>
Sent: Tuesday, March 09, 2004 1:28 PM
Subject: Re: [En-Nut-Discussion] Re: [En-Nut-Announce] Version 3.4.2 Available


> At 06:04 AM 3/9/2004, you wrote:
> 
> > >
> > > >
> > > >What was the descision for the ARM processor that
> > > >you are using ? Did you settle on the Atmel range ?
> > >
> > > Yes, I chose the AT92R40008.
> > >
> >
> >For a later day, when the time is there, the new ARM-7 based
> >Philips LPC210x series would be a VERY interesting chip
> >to port to.
> 
> Maybe I just have ARM envy, but it is driving me crazy (a short trip) that 
> everyone on the planet seems to be talking about the Philips ARM MCUs and 
> no one has even noticed the OKI chips.  The Philips LPC210x chips are very 
> limited with no external bus and would be very difficult to connect to 
> anything that requires a high bandwidth.  So far, that is all Philips has 
> produced, busless chips.  The LPC22xx chips will have an external bus, but 
> are not even sampling yet.
> 
> On the other hand, OKI has been making the ML67Q400x and ML67Q500x chips 
> for months.  These two families are nearly identical with up to 512 kB of 
> Flash, 32kB of SRAM and lots of peripherals such as 2 UARTs, SPI, I2C, PWM, 
> ADC, DMA, GPIO, etc...  PLUS they have an external 16 bit bus for memory or 
> IO expansion.  The 400x runs at up to 33 MHz and the 500x runs at up to 60 
> MHz.  They need 144 pins to support all that IO and bus, so they come in 
> 144 LQFP and 144 BGA (11 mm sq).
> 
> They are cheap too.  I have been quoted prices from $6 to $10.  Add a $5 
> SDRAM chip and you have a system to run any embedded OS you can think of 
> including uCLinux.  Using the internal SRAM you can easily run nearly any 
> normal embedded OS.  Did I mention that the 500x version has 8 kB of cache?
> 
> OKI has told me that they will be introducing a new version with builtin 
> 10/100 Enet MAC soon and one with USB 2.0.
> 
> Rick Collins
> 
> 
> 
> Arius - A Signal Processing Solutions Company
> Specializing in DSP and FPGA design      URL http://www.arius.com
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> 
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