Lpc2000

Hi,

I'm looking for detailed datasheet for Philips 2129 ARM processor 
(particularly seeking more info about its CAN module).

Last projects were on Microchip's products, so maybe I got a bit used 
to exhaustive docs. Where do you guys find needed informations ?

Thanks in advance,

regards,

Rob.

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

From: "tinia0" <robert.rozman@...>
To: <lpc2000@yahoogroups.com>
Sent: Wednesday, March 29, 2006 2:11 PM
Subject: [lpc2000] Where to find real datasheet for 2129 ?


> Hi,
> 
> I'm looking for detailed datasheet for Philips 2129 ARM processor 
> (particularly seeking more info about its CAN module).
> 
> Last projects were on Microchip's products, so maybe I got a bit used 
> to exhaustive docs. Where do you guys find needed informations ?

There should be a separate users guide, with a lot more info.

Leon
--
Leon Heller, G1HSM
leon.heller@...
http://www.geocities.com/leon_heller

tinia0 wrote:
> Hi,
> 
> I'm looking for detailed datasheet for Philips 2129 ARM processor
> (particularly seeking more info about its CAN module).
> 
> Last projects were on Microchip's products, so maybe I got a bit used
> to exhaustive docs. Where do you guys find needed informations ?
> 
> Thanks in advance,
> 
> regards,
> 
> Rob.


Agree that compared to Microchip the site is rely bad. Search for 
"lpc2129 user manual" and you find it. Sometimes a direct link works so 
you can try this as well 
http://www.semiconductors.philips.com/pip/LPC2129.html.

LPC is a good complement to the PIC so it is worth it though..... ;-)

/Ake


-- 
  ---
Ake Hedman (YAP - Yet Another Programmer)
eurosource, Brattbergavagen 17, 820 50 LOS, Sweden
Phone: (46) 657 413430 Cellular: (46) 73 0533 146
Company home: http://www.eurosource.se
Kryddor/Te/Kaffe: http://www.brattberg.com
Personal homepage: http://www.eurosource.se/akhe
Automated home: http://www.vscp.org

tinia0 wrote:
> Hi,
> 
> I'm looking for detailed datasheet for Philips 2129 ARM processor
> (particularly seeking more info about its CAN module).
> 
> Last projects were on Microchip's products, so maybe I got a bit used
> to exhaustive docs. Where do you guys find needed informations ?
> 
> Thanks in advance,
> 
> regards,
> 
> Rob.

Sorry wronf direct link in my previous mail. It should be 
http://www.semiconductors.philips.com/acrobat/usermanuals/UM_LPC21XX_LPC22XX_2.pdf

Cheers
/Ake


-- 
  ---
Ake Hedman (YAP - Yet Another Programmer)
eurosource, Brattbergavagen 17, 820 50 LOS, Sweden
Phone: (46) 657 413430 Cellular: (46) 73 0533 146
Company home: http://www.eurosource.se
Kryddor/Te/Kaffe: http://www.brattberg.com
Personal homepage: http://www.eurosource.se/akhe
Automated home: http://www.vscp.org

If you navigate to the main product page at

http://www.semiconductors.philips.com/pip/LPC2119FBD64.html

you should see it (eventually!) towards the bottom of the page 
under "Support & tools" - you're looking for the User Manual.

--- In lpc2000@yahoogroups.com, "Ake Hedman, eurosource" <akhe@...> 
wrote:
>
> tinia0 wrote:
> > Hi,
> > 
> > I'm looking for detailed datasheet for Philips 2129 ARM processor
> > (particularly seeking more info about its CAN module).
> > 
> > Last projects were on Microchip's products, so maybe I got a bit 
used
> > to exhaustive docs. Where do you guys find needed informations ?
> > 
> > Thanks in advance,
> > 
> > regards,
> > 
> > Rob.
> 
> 
> Agree that compared to Microchip the site is rely bad. Search for 
> "lpc2129 user manual" and you find it. Sometimes a direct link 
works so 
> you can try this as well 
> http://www.semiconductors.philips.com/pip/LPC2129.html.
> 
> LPC is a good complement to the PIC so it is worth it though..... ;-
)

> 
> /Ake
> 
> 
> -- 
>   ---
> Ake Hedman (YAP - Yet Another Programmer)
> eurosource, Brattbergavagen 17, 820 50 LOS, Sweden
> Phone: (46) 657 413430 Cellular: (46) 73 0533 146
> Company home: http://www.eurosource.se
> Kryddor/Te/Kaffe: http://www.brattberg.com
> Personal homepage: http://www.eurosource.se/akhe
> Automated home: http://www.vscp.org
>

On Mar 29, 2006, at 8:11 AM, tinia0 wrote:

> Hi,
>
>  I'm looking for detailed datasheet for Philips 2129 ARM processor
>  (particularly seeking more info about its CAN module).
>
>  Last projects were on Microchip's products, so maybe I got a bit used
>  to exhaustive docs. Where do you guys find needed informations ?
>

For the CAN module, you must look at the SJA1000 datasheet to get all 
the details, especially about bit timing. The LPC2129 CAN module is an 
SJA1000 on the ARM bus. The datasheet is at:

http://www.semiconductors.philips.com/acrobat/datasheets/SJA1000_3.pdf

Also, see CANBTR.py at:
http://groups.yahoo.com/group/lpc2000/files/Tools/

It's a tool I have programmed in Python (http://www.python.org) to 
calculate the best CANBTR value for a particular bitrate. Just change 
the constants at the beginning of the file to your values and it should 
give accurate results. It has been tested several times with the 
LPC2129.

Best Regards,

Tennessee Carmel-Veilleux

Well, the module on the LPC2129 has some similarities with the SJA1000
but it is most definitely not the same!
Bit timing is something that might not be implementation specific, so
using tools that work for the SJA1000 could also work for the LPC2129
but you do yourself a favor applying the Users Manual to your software
development rather than the SJA1000 documentation.

There is a good software example in the files section how to use the
CAN.  LPC2_CAN_Examples

Regards, Bob

--- In lpc2000@yahoogroups.com, Tennessee Carmel-Veilleux
<tennessee.carmelveilleux@...> wrote:
>
> 
> On Mar 29, 2006, at 8:11 AM, tinia0 wrote:
> 
> > Hi,
> >
> >  I'm looking for detailed datasheet for Philips 2129 ARM processor
> >  (particularly seeking more info about its CAN module).
> >
---snip ---
> For the CAN module, you must look at the SJA1000 datasheet to get all 
> the details, especially about bit timing. The LPC2129 CAN module is an 
> SJA1000 on the ARM bus. 

---snip ---
>

The IP in the LPC2129 CAN controller is based on the SJA1000.  It's a 32-bit
variation of the SJA1000.

These guys wrote the LPC2 CAN examples floating around:
http://www.esacademy.com/faq/calc/sja1000.htm

There's also further CAN code for the LPC2 in their MicroCANopen demo code.


Joel