Lpc2000

Hello,

I'd like to link a LPC and a SPC3. The SPC3 protocol ASIC is totally 
dedicated for the use as PROFIBUS DP slave. It manages layer 1 and 2 
of PROFIBUS.

I'd like to find help on hardware and software, and to know if it's 
possible to interface it.

Thanks

For required interconnect signals see page 42 of the data sheet:
www.profibuscenter.nl/page-downloads/_spc3_hardware_V1.2.pdf

You would need to bit bang an External Memory Interface(EMI).  It would eat
a good deal of your IO pins.

C driver software:
www.profibuscenter.nl/page-products/products-spc3-software.htm

Perhaps someone who has implemented a bit banged EMI provide some input as
to potential throughput.

Regards,
Joel Winarske


----- Original Message ----- 

From: "gfaurie1" <gilles.faurie@...>
To: <lpc2000@yahoogroups.com>
Sent: Wednesday, September 28, 2005 11:22 PM
Subject: [lpc2000] LPC + Profibus


> Hello,
>
> I'd like to link a LPC and a SPC3. The SPC3 protocol ASIC is totally
> dedicated for the use as PROFIBUS DP slave. It manages layer 1 and 2
> of PROFIBUS.
>
> I'd like to find help on hardware and software, and to know if it's
> possible to interface it.
>
> Thanks
>
>
>
>
>
>
> Yahoo! Groups Links
>
>
>
>
>
>
>
>

lpc2000@yahoogroups.com wrote on 29.09.2005 08:22:31:

> Hello,
> 
> I'd like to link a LPC and a SPC3. The SPC3 protocol ASIC is totally 
> dedicated for the use as PROFIBUS DP slave. It manages layer 1 and 2 
> of PROFIBUS.
> 
> I'd like to find help on hardware and software, and to know if it's 
> possible to interface it.
> 
> Thanks
> 
We developed Profibus Slaves for PROFIBUS DP and also for PROFIBUS PA 
using V1SL-firmware stack from Siemens on a 8051-like 
DPC31-microcontroller, Siemens too.
Now we are also developing on lpc2129 and CANopen-stack and try to link 
busses together.
Perhaps there is a smart solution with lpc2129 and SPC3? 
 
Thomas

DI Thomas Kuschel

================
Anton Paar GmbH
Research & Development
Anton-Paar-Str. 20
8054 Graz
Austria
http://www.anton-paar.com


[Non-text portions of this message have been removed]

--- In lpc2000@yahoogroups.com, "Joel Winarske" <joelw@i...> wrote:
> For required interconnect signals see page 42 of the data sheet:
> www.profibuscenter.nl/page-downloads/_spc3_hardware_V1.2.pdf
> 
> You would need to bit bang an External Memory Interface(EMI).  It  
> would eat a good deal of your IO pins.
> 
> C driver software:
> www.profibuscenter.nl/page-products/products-spc3-software.htm
> 
> Perhaps someone who has implemented a bit banged EMI provide some
> input as to potential throughput.

I am in the same situation as the original poster.  Have you tried 
this Profibuscenter driver software?  Does it work, and does it look 
easy to change the memory-mapped interface to a bit-banging interface?

I don't think much performance is lost by bit-banging the bus 
interface since the lpc2000 can toggle outputs nearly as fast as the 
SPC3 allows.

Karl Olsen

> ----- Original Message ----- 
> From: "gfaurie1" <gilles.faurie@p...>
> To: <lpc2000@yahoogroups.com>
> Sent: Wednesday, September 28, 2005 11:22 PM
> Subject: [lpc2000] LPC + Profibus
> 
>> I'd like to link a LPC and a SPC3. The SPC3 protocol ASIC is
>> totally dedicated for the use as PROFIBUS DP slave. It manages
>> layer 1 and 2 of PROFIBUS.
>>
>> I'd like to find help on hardware and software, and to know if it's
>> possible to interface it.