Lpc2000

Does anyone know how much time (or instruction cycle) RST line must be pulled down to reset LPC2138? 


Regards,

Danilo


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

Morning Danilo,

  80ms if you need to use one. Since the 2138 has a POR circuit, you
do not need any external reset control.

regards,
Charles


--- In lpc2000@yahoogroups.com, "Danilo Franco" <danilo@q...> wrote:
> Does anyone know how much time (or instruction cycle) RST line must
be pulled down to reset LPC2138? 

> 
> 
> Regards,
> 
> Danilo
> 
> 
> [Non-text portions of this message have been removed]

Hi Group,
I know that Philips are releasing an LPC2000 part later this year (Q3
according to Rober's last post) with on-board ethernet. Anyone know of an
ARM7 based MCU available today with on-board ethernet ? Netsilicon is all a
quick google found for me. 
 
Thanks,
Hugh,,


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

Hi Charles,

Thanks for your prompt reply.

So once POR is activated, what is the RST rise time? I have been designing reset control circuit taking into account that noise on this line could reset the microcontroller.

Regards,

Danilo

----- Original Message ----- 
  From: charlesgrenz 
  To: lpc2000@yahoogroups.com 
  Sent: Friday, February 25, 2005 9:34 AM
  Subject: [lpc2000] Re: Reset time



  Morning Danilo,

    80ms if you need to use one. Since the 2138 has a POR circuit, you
  do not need any external reset control.

  regards,
  Charles


  --- In lpc2000@yahoogroups.com, "Danilo Franco" <danilo@q...> wrote:
  > Does anyone know how much time (or instruction cycle) RST line must
  be pulled down to reset LPC2138? 
  > 
  > 
  > Regards,
  > 
  > Danilo
  > 
  > 
  > [Non-text portions of this message have been removed]




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

Hi Hugh

> I know that Philips are releasing an LPC2000 part later this year (Q3
> according to Rober's last post) with on-board ethernet. Anyone know of an
> ARM7 based MCU available today with on-board ethernet ? Netsilicon is 
> all a
> quick google found for me.

Samsung has one (it is on the ARM Evaluator-7T board, but ARM did not 
place
a Phy-Chip beside it).

-- 
42Bastian Schick

Hi Danilo,

  There you have me. When I initially talked with Philips Apps about
this, they gave me the wrong information the first time and the second
time the 80 ms value. I would assume that since the "wake up timer" is
watching everything to make sure that all is up to snuff before
allowing execution to start. From 10ns to 100us or as soon as it
passes the 2.8V range.

regards,
Charles

--- In lpc2000@yahoogroups.com, "Danilo Franco" <danilo@q...> wrote:
> Hi Charles,
> 
> Thanks for your prompt reply.
> 
> So once POR is activated, what is the RST rise time? I have been
designing reset control circuit taking into account that noise on this
line could reset the microcontroller.
> 
> Regards,
> 
> Danilo
> 
> 
> ----- Original Message ----- 
>   From: charlesgrenz 
>   To: lpc2000@yahoogroups.com 
>   Sent: Friday, February 25, 2005 9:34 AM
>   Subject: [lpc2000] Re: Reset time
> 
> 
> 
>   Morning Danilo,
> 
>     80ms if you need to use one. Since the 2138 has a POR circuit, you
>   do not need any external reset control.
> 
>   regards,
>   Charles
> 
> 
>   --- In lpc2000@yahoogroups.com, "Danilo Franco" <danilo@q...> wrote:
>   > Does anyone know how much time (or instruction cycle) RST line must
>   be pulled down to reset LPC2138? 
>   > 
>   > 
>   > Regards,
>   > 
>   > Danilo
>   > 
>   > 
>   > [Non-text portions of this message have been removed]
> 
> 
> 
> 
>         Yahoo! Groups Sponsor 
>               ADVERTISEMENT
>              
>        
>        
> 
> 
>
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>   Yahoo! Groups Links
> 
>     a.. To visit your group on the web, go to:
>     http://groups.yahoo.com/group/lpc2000/
>       
>     b.. To unsubscribe from this group, send an email to:
>     lpc2000-unsubscribe@yahoogroups.com
>       
>     c.. Your use of Yahoo! Groups is subject to the Yahoo! Terms of
Service. 

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

Hugh O'Keeffe wrote:
> Hi Group,
> I know that Philips are releasing an LPC2000 part later this year (Q3
> according to Rober's last post) with on-board ethernet. Anyone know of an
> ARM7 based MCU available today with on-board ethernet ? Netsilicon is all a
> quick google found for me. 
>  
> Thanks,
> Hugh,,
> 
> 
> 
Hi Hugh,

first, the unfortunately now EOL-ed Samsung S3C4510B/4530A (50MHz ARM7TDMI) come to mind. Seems as 
if Samsung dropped out of the network controller buissiness since they axed all their ARM7/ARM9 
controllers with on-chip Ethernet.
Then, there is Sharp with their LH79524/79525 controllers (77 MHz ARM720T) aimed at the mobile 
devices market.
All these are large 200+ pin monsters, no low-pincount controllers like the Philips LPC2xxx.
Some time ago, before Texas Instruments opened their TMS470 family to the mere mortals, there was a 
list on their web site naming all the automotive TMS470 controllers they produce/intend to produce 
and IIRC there was also a device with ethernet in a 100 or 120 pin package listed, but I can't find 
that page now.
It seems that most ARM devices with an internal 10/100-Ethernet interface are ARM9s now, obviously 
for performance reasons.

HTH,
Jens

>    From: "Hugh O'Keeffe" <hugh.okeeffe@...>

> I know that Philips are releasing an LPC2000 part later this
> year (Q3 according to Rober's last post) with on-board
> ethernet. Anyone know of an ARM7 based MCU available today
> with on-board ethernet ? Netsilicon is all a quick google
> found for me. 

See Sharp
  www.sharpsma.com
We haven't written the Ethernet drivers for these yet.

See Samsung
The S3C4510B is used by most of the low cost 10/100 4 port 
switches/hubs. Unless they've improved the sample code in the 
last 18 months, beware! The sample Ethernet driver is buggy, so 
try for a Linux driver or contact me directly.

See Atmel AT91RM9200 if you don't mind an ARM9.

Note that integrated Ethernet hardware usually requires *much* 
more code than external chips such as the SMC91C111 or the Asix 
and Realtek chips.

Stephen

--
Stephen Pelc, stephen@...
MicroProcessor Engineering Ltd - More Real, Less Time
133 Hill Lane, Southampton SO15 5AF, England
tel: +44 23 80 631441, fax: +44 23 80 339691
web: http://www.mpeltd.demon.co.uk - free VFX Forth downloads

--- In lpc2000@yahoogroups.com, "Hugh O'Keeffe" <hugh.okeeffe@a...> 
wrote:
> Hi Group,
> I know that Philips are releasing an LPC2000 part later this year 
(Q3
> according to Rober's last post) with on-board ethernet. Anyone 
know of an
> ARM7 based MCU available today with on-board ethernet ? Netsilicon 
is all a
> quick google found for me. 
>  
> Thanks,
> Hugh,,
> 
> 

There is one from ATMEL (AT91C140) with dual 10/100 MAC (but without 
PHY) and SDRAM controller. It is quite big BGA256.

> > I know that Philips are releasing an LPC2000 part later this 
year (Q3 according to Rober's last post) with on-board ethernet. 

Will this chip have PHY built in? If not, I really don't want to see 
that chip! If yes, I can't wait to get samples :-)

Gus

Jens Hildebrandt wrote:

> Hugh O'Keeffe wrote:
> 
>>Hi Group,
>>I know that Philips are releasing an LPC2000 part later this year (Q3
>>according to Rober's last post) with on-board ethernet. Anyone know of an
>>ARM7 based MCU available today with on-board ethernet ? Netsilicon is all a
>>quick google found for me. 
>> 
>>Thanks,
>>Hugh,,
>>
>>
>>
> 
> Hi Hugh,
> 
> first, the unfortunately now EOL-ed Samsung S3C4510B/4530A (50MHz ARM7TDMI) come to mind. Seems as 
> if Samsung dropped out of the network controller buissiness since they axed all their ARM7/ARM9 
> controllers with on-chip Ethernet.
> Then, there is Sharp with their LH79524/79525 controllers (77 MHz ARM720T) aimed at the mobile 
> devices market.
> All these are large 200+ pin monsters, no low-pincount controllers like the Philips LPC2xxx.
> Some time ago, before Texas Instruments opened their TMS470 family to the mere mortals, there was a 
> list on their web site naming all the automotive TMS470 controllers they produce/intend to produce 
> and IIRC there was also a device with ethernet in a 100 or 120 pin package listed, but I can't find 
> that page now.
> It seems that most ARM devices with an internal 10/100-Ethernet interface are ARM9s now, obviously 
> for performance reasons.
> 
> HTH,
> Jens
> 
> 
Oops, forgot one...
The Winbond W90N740 is an ARM7 based MCU with I- and D-cache running at 80MHz, featuring two 
10/100-Ethernet-MACs, NAT-module, USB 1.1 host controller, UART, DMA controller, 24bit Timers and an 
external bus controller supporting SDRAM and PCMCIA among others.

Jens

Hi Jens,

Have you used the Winbond W90N740 before? 

It is a nice looking part; I even have a demo board running uC Linux
sitting on my desk but I have been unable to get my hands on the device.

David Kay
www.adilam.com.au
 

> Jens
> 
> 
Oops, forgot one...
The Winbond W90N740 is an ARM7 based MCU with I- and D-cache running at
80MHz, featuring two 
10/100-Ethernet-MACs, NAT-module, USB 1.1 host controller, UART, DMA
controller, 24bit Timers and an 
external bus controller supporting SDRAM and PCMCIA among others.

Jens


 
Yahoo! Groups Links

Yes,

Can any one source the Winbond W90N740  chips that is.

Regards
Joseph

-----Original Message-----
From: David Kay [mailto:david.kay@...] 
Sent: Monday, 28 February 2005 7:40 AM
To: lpc2000@yahoogroups.com
Subject: RE: [lpc2000] ARM7 with on-board ethernet



Hi Jens,

Have you used the Winbond W90N740 before? 

It is a nice looking part; I even have a demo board running uC Linux
sitting on my desk but I have been unable to get my hands on the device.

David Kay
www.adilam.com.au
 

> Jens
> 
> 
Oops, forgot one...
The Winbond W90N740 is an ARM7 based MCU with I- and D-cache running at
80MHz, featuring two 
10/100-Ethernet-MACs, NAT-module, USB 1.1 host controller, UART, DMA
controller, 24bit Timers and an 
external bus controller supporting SDRAM and PCMCIA among others.

Jens


 
Yahoo! Groups Links



 





 
Yahoo! Groups Links

Hi David,

up to now I have only considered that chip for a project that was eventually realized using another 
IC. Back then, the data sheet on the Winbond page was only "preliminary" and since that company has 
only one distributor here in Germany - which up to now seems not to know that chip at all - we 
refrained from using it. Meanwhile, there exists a \ufffdCLinux port (if I did get the Google search 
results right) based on a low cost router.
Maybe, to get hold of the chip you have to talk to Winbond directly but I guess you have to mention 
large numbers to get them listening to you.

Jens Hildebrandt

David Kay wrote:

> Hi Jens,
> 
> Have you used the Winbond W90N740 before? 
> 
> It is a nice looking part; I even have a demo board running uC Linux
> sitting on my desk but I have been unable to get my hands on the device.
> 
> David Kay
> www.adilam.com.au
>  
> 
> 
>>Jens
>>
>>
> 
> Oops, forgot one...
> The Winbond W90N740 is an ARM7 based MCU with I- and D-cache running at
> 80MHz, featuring two 
> 10/100-Ethernet-MACs, NAT-module, USB 1.1 host controller, UART, DMA
> controller, 24bit Timers and an 
> external bus controller supporting SDRAM and PCMCIA among others.
> 
> Jens
> 
>

Josehp can you give me the pricing for any arm7 or other arm dev boards
you guys carry.

A couple of lecturers are looking for more boards for a uni embedded 
systems subject.
May be 3 - 6 months or longer before they actually purchase any.

Just trying to find them some reasonably cheap boards
preferably with local supplier.


Thanks
Alex Gibson


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