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PICList Thread
'Downloadable Microcontrollers'
1997\11\04@025202 by wterreb

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face
Atmel seems to continiously impress me with all the innovative
products they bring us all the time.  Anybody here looked the spec
sheets of Atmel AT89S8252 lately?  This  fella is 89C52
compatible, but with the difference that it is completely in-circuit
programmable by downloading the 8Kb of code onto the microprocessor by
means of an onboard SPI interface for serial program downloading.  On
top of this it also boasts with 2Kb of onboard EEPROM!

The AT89S8252 provides the following standard features: 8K bytes of
Downloadable Flash, 2K bytes of EEPROM, 256 bytes of RAM, 32 I/O
lines, programmable watch-dog timer, two Data Pointers, three 16-bit
timer/counters, a six-vector two-level inter-rupt architecture, a full
duplex serial port, on-chip oscillator, and clock circuitry.

This means that you do not need a fancy programmer to program this
device and you can even let your customer do code updates  in the
field on a working product.  All you probably need is a very simple
interface between your PC and the SPI port.   I tried to search for
any implementations of such a simple interface last night, but found
nothing.  Atmel also did not have any application notes regarding
this on their web site, as far as I could tell.  I'm sure it will not
be difficult to implement, but I do not want to waste an extra day if
this info is already available somewhere on the net.  If someone else
has also already looked into this and know of an easy implementation,
then I would very much like to hear from you.

Rgds
Werner

1997\11\04@031934 by Steven Tucker

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On Tue, 4 Nov 1997, Werner Terreblanche wrote:

> Atmel seems to continiously impress me with all the innovative
> products they bring us all the time.  Anybody here looked the spec
> sheets of Atmel AT89S8252 lately?  This  fella is 89C52
> compatible, but with the difference that it is completely in-circuit
> programmable by downloading the 8Kb of code onto the microprocessor by
> means of an onboard SPI interface for serial program downloading.  On
> top of this it also boasts with 2Kb of onboard EEPROM!

Sweet!  Does anyone know of a piece vendor for this?  I need to get a few to
play with.  I dont see it in JDR or Jameco catalogs.

Steve

   * * *  Author of Imagic and APE - The Atari Peripheral Emulator!  * * *
   * * *      Turn your 8-bit Atari into a powerhouse with APE!      * * *
  *  *  *        Ape Homepage: http://www.nacs.net/~classics        *  *  *
*    *    *********************************************************    *    *
!! Request my *FOR SALE* LISTING OF CLASSIC VIDEO GAME STUFF -- 2000+ Items !!

1997\11\04@065815 by WF AUTOMA‚̀O

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Steven Tucker wrote:
>
> On Tue, 4 Nov 1997, Werner Terreblanche wrote:
>
> > Atmel seems to continiously impress me with all the innovative
> > products they bring us all the time.  Anybody here looked the spec
> > sheets of Atmel AT89S8252 lately?  This  fella is 89C52
> > compatible, but with the difference that it is completely in-circuit
> > programmable by downloading the 8Kb of code onto the microprocessor by
> > means of an onboard SPI interface for serial program downloading.  On
> > top of this it also boasts with 2Kb of onboard EEPROM!
>
> Sweet!  Does anyone know of a piece vendor for this?  I need to get a few to
>  play with.  I dont see it in JDR or Jameco catalogs.
>
> Steve

Recently i did buy 10 pieces of the AT89S8252!

TRY

55-11-522-1799 (BRAZIL)

mIGUEL.

1997\11\04@091642 by Lauw Lim Un Tung

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YES!! I want to play with this chip too, where could I get it?

May be ATMEL give samples :) for us?



On Tue, 4 Nov 1997, Steven Tucker wrote:

{Quote hidden}

1997\11\04@103319 by mscaff

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The problem is that this IC is not avaiable at the moment.



-----Original Message-----
From: Werner Terreblanche <spam_OUTwterrebTakeThisOuTspamplessey.co.za>
To: .....PICLISTKILLspamspam@spam@MITVMA.MIT.EDU <PICLISTspamKILLspamMITVMA.MIT.EDU>
Date: Tuesday, November 04, 1997 4:54 AM
Subject: Downloadable Microcontrollers


Atmel seems to continiously impress me with all the innovative
products they bring us all the time.  Anybody here looked the spec
sheets of Atmel AT89S8252 lately?  This  fella is 89C52
compatible, but with the difference that it is completely in-circuit
programmable by downloading the 8Kb of code onto the microprocessor by
means of an onboard SPI interface for serial program downloading.  On
top of this it also boasts with 2Kb of onboard EEPROM!

The AT89S8252 provides the following standard features: 8K bytes of
Downloadable Flash, 2K bytes of EEPROM, 256 bytes of RAM, 32 I/O
lines, programmable watch-dog timer, two Data Pointers, three 16-bit
timer/counters, a six-vector two-level inter-rupt architecture, a full
duplex serial port, on-chip oscillator, and clock circuitry.

This means that you do not need a fancy programmer to program this
device and you can even let your customer do code updates  in the
field on a working product.  All you probably need is a very simple
interface between your PC and the SPI port.   I tried to search for
any implementations of such a simple interface last night, but found
nothing.  Atmel also did not have any application notes regarding
this on their web site, as far as I could tell.  I'm sure it will not
be difficult to implement, but I do not want to waste an extra day if
this info is already available somewhere on the net.  If someone else
has also already looked into this and know of an easy implementation,
then I would very much like to hear from you.

Rgds
Werner

1997\11\04@170801 by William Chops Westfield

face picon face
www.marshall.com says $22 in ones for AT89S8252.  (ouch.)

Don't know for sure whether they'll SELL *one*, but that's what their
online database says for the price.  (Falls to $15 in 100s.)

BillW

1997\11\05@013024 by wterreb

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> Date:          Tue, 4 Nov 1997 14:05:48 PST
> From:          William Chops Westfield <.....billwKILLspamspam.....CISCO.COM>
> Subject:       Re: Downloadable Microcontrollers

> http://www.marshall.com says $22 in ones for AT89S8252.  (ouch.)
>
> Don't know for sure whether they'll SELL *one*, but that's what their
> online database says for the price.  (Falls to $15 in 100s.)


Geez!   I must complement our local supplier here in SA.  They have
both the PLCC and DIP version ex-stock, and I can buy any quantitiy over the
counter for only $12.50 each.  Sometimes (but not often) there is a small
advantage
to living in a country where the electronics industry is still
relatively small and the suppliers are still eager to accomodate the small guy.
 :)

Rgds
Werner
--
Werner Terreblanche     users.iafrica.com/w/we/wernerte/index.htm
EraseMEwterrebspam_OUTspamTakeThisOuTplessey.co.za (work)  OR  wernertespamspam_OUTiafrica.com  (home)
Plessey SA, PO Box 30451,Tokai 7966, Cape Town, South Africa
or at home : Suite 251, PostNet X5061, Stellenbosch, 7599
Tel +27 21 7102251  Fax +27 21 7102886  Home +27 21 8872196
------------------------------------------------------------

1997\11\05@014311 by Leon Heller

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picon face
In message <@spam@2C6AE5442E4KILLspamspamfs7.plessey.co.za>, Werner Terreblanche
<KILLspamwterrebKILLspamspamPLESSEY.CO.ZA> writes
{Quote hidden}

The Atmel AVR 1200 controller has the same type of I/F. They can be
programmed in-circuit from the printer port with a capacitor between two
of the pins - virtually zero hardware. 1200 programming software and
hardware details are here:

       http://www.sistudio.com/avr.html

Leon
--
Leon Heller: RemoveMEleonTakeThisOuTspamlfheller.demon.co.uk http://www.lfheller.demon.co.uk
Amateur Radio Callsign G1HSM    Tel: +44 (0) 118 947 1424
See http://www.lfheller.demon.co.uk/rcm.htm for details of a
low-cost reconfigurable computing module using the XC6216 FPGA

1997\11\05@020625 by : Cassie Carstens

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> > http://www.marshall.com says $22 in ones for AT89S8252.  (ouch.)
> >
> > Don't know for sure whether they'll SELL *one*, but that's what their
> > online database says for the price.  (Falls to $15 in 100s.)
>
>
> Geez!   I must complement our local supplier here in SA.  They have
> both the PLCC and DIP version ex-stock, and I can buy any quantitiy over the
> counter for only $12.50 each.  Sometimes (but not often) there is a small
>  advantage
> to living in a country where the electronics industry is still
> relatively small and the suppliers are still eager to accomodate the small
guy.
>   :)
>
> Rgds
> Werner

I hope Avnet Kopp does not read this !!!!!!!!!

Same
CC

1997\11\05@024944 by wterreb

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face
> The Atmel AVR 1200 controller has the same type of I/F. They can be
> programmed in-circuit from the printer port with a capacitor between two
> of the pins - virtually zero hardware. 1200 programming software and
> hardware details are here:
>
>         http://www.sistudio.com/avr.html
>

Thanks Leon.  I also had a message from Antii himself to this regard.
I have not yet tried it, but will do so real soon and report back.
I quote from Antti's  message just for  interest:

{Quote hidden}

--
Werner Terreblanche     users.iafrica.com/w/we/wernerte/index.htm
RemoveMEwterrebspamTakeThisOuTplessey.co.za (work)  OR  wernerteEraseMEspam.....iafrica.com  (home)
Plessey SA, PO Box 30451,Tokai 7966, Cape Town, South Africa
or at home : Suite 251, PostNet X5061, Stellenbosch, 7599
Tel +27 21 7102251  Fax +27 21 7102886  Home +27 21 8872196
------------------------------------------------------------

1997\11\05@183424 by Ron Kreymborg

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face
Does anyone know of a supplier for the Atmel AT90S2313? In a 20-pin
package, I would say this is Atmel's answer to the 16F84 : uart, stack
pointer into data space, etc. Looks worth a try.

Ron

On Wed, 5 Nov 1997, Werner Terreblanche wrote:

{Quote hidden}

guy.
{Quote hidden}

1997\11\06@105127 by Matt Bonner

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Ron Kreymborg wrote:
>
> Does anyone know of a supplier for the Atmel AT90S2313? In a 20-pin
> package, I would say this is Atmel's answer to the 16F84 : uart, stack
> pointer into data space, etc. Looks worth a try.
>
A handout given at a recent Atmel seminar says that the 'S2313 isn't
available until Q497.  I know that we're in the 4th quarter now, but
don't be suprised if you can't get it quite yet...

BTW, there is an Atmel list (about 30 subscribers, 6 or so active) and I
know they would like to hear from you.  I don't have the subscription
info (I always keep my subscription responses - but where's that one?);
maybe someone can post it - there's been a lot of Atmel traffic here
lately.

--Matt

1997\11\07@153934 by Adrian Gothard

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At 08:50 06/11/97 -0700, you wrote:
>Ron Kreymborg wrote:
>>
>> Does anyone know of a supplier for the Atmel AT90S2313? In a 20-pin
>> package, I would say this is Atmel's answer to the 16F84 : uart, stack
>> pointer into data space, etc. Looks worth a try.
>>
>A handout given at a recent Atmel seminar says that the 'S2313 isn't
>available until Q497.  I know that we're in the 4th quarter now, but
>don't be suprised if you can't get it quite yet...
>
>BTW, there is an Atmel list (about 30 subscribers, 6 or so active) and I
>know they would like to hear from you.  I don't have the subscription
>info (I always keep my subscription responses - but where's that one?);
>maybe someone can post it - there's been a lot of Atmel traffic here
>lately.
>
>--Matt

The last I heard, Atmel are concentrating on the AT90S8515, then 4414 etc.
Adrian

WWW    WWW Adrian Gothard
WWW WW WWW White Horse Design
WWWWWWWWWW 0385-970009, 01189-628913/628914, 0976-387778 (obsolete)
WWWW  WWWW RemoveMEwhdTakeThisOuTspamspamzetnet.co.uk

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