Lpc2000

The standard 2x10 JTAG connector is very space consuming, is there any 
other standard configuration suggested for JTAG connector?
Massimo Manca, Micron Engineering


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--- In lpc2000@yahoogroups.com, Micron Engineering <micronpn@t...> 
wrote:
> The standard 2x10 JTAG connector is very space consuming, is there 
any 
> other standard configuration suggested for JTAG connector?
> Massimo Manca, Micron Engineering

Only seven connections are in fact used for the LPC2000. I'd select a 
suitable small connector and make an adaptor for it, interfacing to 
the standard connector. This sort of arrangement is quite common for 
other MCUs that use a JTAG connector, like the MSP430. That actually 
uses a 2x5 header as standard, but that is too big for some people.

Leon

leon_heller wrote:

>--- In lpc2000@yahoogroups.com, Micron Engineering <micronpn@t...> 
>wrote:
>  
>
>>The standard 2x10 JTAG connector is very space consuming, is there 
>>    
>>
>any 
>  
>
>>other standard configuration suggested for JTAG connector?
>>Massimo Manca, Micron Engineering
>>    
>>
>
>Only seven connections are in fact used for the LPC2000. I'd select a 
>suitable small connector and make an adaptor for it, interfacing to 
>the standard connector. This sort of arrangement is quite common for 
>other MCUs that use a JTAG connector, like the MSP430. That actually 
>uses a 2x5 header as standard, but that is too big for some people.
>  
>
2x5 may be ok for me. May you send me the pinout?
Best regards,

Massimo Manca, Micron Engineering


>Leon
>
>
>
>
>
> 
>Yahoo! Groups Links
>
>
>
> 
>
>
>
>
>
>  
>


  ----------

Internal Virus Database is out-of-date.
Checked by AVG Anti-Virus.
Version: 7.0.308 / Virus Database: 266.7.4 - Release Date: 18/03/2005


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

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

From: "Micron Engineering" <micronpn@...>
To: <lpc2000@yahoogroups.com>
Sent: Friday, March 25, 2005 2:01 PM
Subject: Re: [lpc2000] Re: JTAG CONNECTOR


>
> leon_heller wrote:
>
>>--- In lpc2000@yahoogroups.com, Micron Engineering <micronpn@t...>
>>wrote:
>>
>>
>>>The standard 2x10 JTAG connector is very space consuming, is there
>>>
>>>
>>any
>>
>>
>>>other standard configuration suggested for JTAG connector?
>>>Massimo Manca, Micron Engineering
>>>
>>>
>>
>>Only seven connections are in fact used for the LPC2000. I'd select a
>>suitable small connector and make an adaptor for it, interfacing to
>>the standard connector. This sort of arrangement is quite common for
>>other MCUs that use a JTAG connector, like the MSP430. That actually
>>uses a 2x5 header as standard, but that is too big for some people.
>>
>>
> 2x5 may be ok for me. May you send me the pinout?
> Best regards,

Sorry, I was wrong. It's actually 2x7 and that's probably too big for you. 
Only seven pins are actually used, though. I'd just use 2x5 with your 
connection arrangement.

Leon

I use a 1.25mm pitch SMD or through hole part from Molex. cvomes in 
vertical or 90 degree, very compact, single or dual row, and around 
$0.20 in bulk from Taiwan. Up to 20 connectors. They're so tiny and 
cheap most of my boards get one. I posted the Farnell part number here a 
few weeks ago. have a look, if they suit you I can find out where in 
taiwan my contact gets them from

Al

Micron Engineering wrote:

> leon_heller wrote:
>
> >--- In lpc2000@yahoogroups.com, Micron Engineering <micronpn@t...>
> >wrote:
> > 
> >
> >>The standard 2x10 JTAG connector is very space consuming, is there
> >>   
> >>
> >any
> > 
> >
> >>other standard configuration suggested for JTAG connector?
> >>Massimo Manca, Micron Engineering
> >>   
> >>
> >
> >Only seven connections are in fact used for the LPC2000. I'd select a
> >suitable small connector and make an adaptor for it, interfacing to
> >the standard connector. This sort of arrangement is quite common for
> >other MCUs that use a JTAG connector, like the MSP430. That actually
> >uses a 2x5 header as standard, but that is too big for some people.
> > 
> >
> 2x5 may be ok for me. May you send me the pinout?
> Best regards,
>
> Massimo Manca, Micron Engineering
>
>
> >Leon
> >
> >
> >
> >
> >
> >
> >Yahoo! Groups Links
> >
> >
> >
> >
> >
> >
> >
> >
> >
> > 
> >
>
>
>   ----------
>
> Internal Virus Database is out-of-date.
> Checked by AVG Anti-Virus.
> Version: 7.0.308 / Virus Database: 266.7.4 - Release Date: 18/03/2005
>
>
> [Non-text portions of this message have been removed]
>
>
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>

--- In lpc2000@yahoogroups.com, Onestone <onestone@b...> wrote:
> I use a 1.25mm pitch SMD or through hole part from Molex. cvomes in 
> vertical or 90 degree, very compact, single or dual row, and around 
> $0.20 in bulk from Taiwan. Up to 20 connectors. They're so tiny and 
> cheap most of my boards get one. I posted the Farnell part number 
here a 
> few weeks ago. have a look, if they suit you I can find out where 
in 
> taiwan my contact gets them from

The 8-way Harwin M30-6100806 is available from Farnell (866118). I 
think those are the connectors Al referred to previously. I'll order 
a few next time I get some stuff from Farnell, although I have a 
feeling I've got some somewhere that I ordered a long time ago. I'll 
probably start using them myself.

Leon

You're right Leon, I think it is Harwin. There are two suppliers. 
farnell only has the single row. My supplier gets them in double row too.

Al

leon_heller wrote:

>
> --- In lpc2000@yahoogroups.com, Onestone <onestone@b...> wrote:
> > I use a 1.25mm pitch SMD or through hole part from Molex. cvomes in
> > vertical or 90 degree, very compact, single or dual row, and around
> > $0.20 in bulk from Taiwan. Up to 20 connectors. They're so tiny and
> > cheap most of my boards get one. I posted the Farnell part number
> here a
> > few weeks ago. have a look, if they suit you I can find out where
> in
> > taiwan my contact gets them from
>
> The 8-way Harwin M30-6100806 is available from Farnell (866118). I
> think those are the connectors Al referred to previously. I'll order
> a few next time I get some stuff from Farnell, although I have a
> feeling I've got some somewhere that I ordered a long time ago. I'll
> probably start using them myself.
>
> Leon
>
>
>
>
>
>
>
> Yahoo! Groups Sponsor
> ADVERTISEMENT
> <http://us.ard.yahoo.com/SIG=129n0d3fk/M=298184.6191685.7192823.3001176/D=groups/S=1706554205:HM/EXP=1111854094/A=2593423/R=0/SIG=11el9gslf/*http://www.netflix.com/Default?mqso=60190075> 
>
>
>
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> Yahoo! Groups Links
>
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>       http://groups.yahoo.com/group/lpc2000/
>        
>     * To unsubscribe from this group, send an email to:
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>
>No virus found in this incoming message.
>Checked by AVG Anti-Virus.
>Version: 7.0.308 / Virus Database: 266.8.1 - Release Date: 23/03/2005
>  
>

Keeping the 20-pin connector is nice as it gives a ground wire between
the signal wires (ribbon cable).  Check out this AMP connector
available at Digikey:

A3103-ND

Richard


--- In lpc2000@yahoogroups.com, Onestone <onestone@b...> wrote:
> You're right Leon, I think it is Harwin. There are two suppliers. 
> farnell only has the single row. My supplier gets them in double row
too.
> 
> Al
> 
> leon_heller wrote:
> 
> >
> > --- In lpc2000@yahoogroups.com, Onestone <onestone@b...> wrote:
> > > I use a 1.25mm pitch SMD or through hole part from Molex. cvomes in
> > > vertical or 90 degree, very compact, single or dual row, and around
> > > $0.20 in bulk from Taiwan. Up to 20 connectors. They're so tiny and
> > > cheap most of my boards get one. I posted the Farnell part number
> > here a
> > > few weeks ago. have a look, if they suit you I can find out where
> > in
> > > taiwan my contact gets them from
> >
> > The 8-way Harwin M30-6100806 is available from Farnell (866118). I
> > think those are the connectors Al referred to previously. I'll order
> > a few next time I get some stuff from Farnell, although I have a
> > feeling I've got some somewhere that I ordered a long time ago. I'll
> > probably start using them myself.
> >
> > Leon
> >
> >
> >
> >
> >
> >
> >
> > Yahoo! Groups Sponsor
> > ADVERTISEMENT
> >
<http://us.ard.yahoo.com/SIG=129n0d3fk/M=298184.6191685.7192823.3001176/D=groups/S=1706554205:HM/EXP=1111854094/A=2593423/R=0/SIG=11el9gslf/*http://www.netflix.com/Default?mqso=60190075>

> >
> >
> >
> >
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> >        
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> >       <mailto:lpc2000-unsubscribe@yahoogroups.com?subject=Unsubscribe>
> >        
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> >       Service <http://docs.yahoo.com/info/terms/>.
> >
> >
>
>------------------------------------------------------------------------
> >
> >No virus found in this incoming message.
> >Checked by AVG Anti-Virus.
> >Version: 7.0.308 / Virus Database: 266.8.1 - Release Date: 23/03/2005
> >  
> >

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

From: "Richard" <richas@...>
To: <lpc2000@yahoogroups.com>
Sent: Friday, March 25, 2005 5:29 PM
Subject: [lpc2000] Re: JTAG CONNECTOR


>
>
> Keeping the 20-pin connector is nice as it gives a ground wire between
> the signal wires (ribbon cable).  Check out this AMP connector
> available at Digikey:
>
> A3103-ND

Most of the cable will be 20-way, with the grounds. It's only the last 
couple of inches that will be 8-way, if a suitable adapter is made.

Leon

--- In lpc2000@yahoogroups.com, Micron Engineering <micronpn@t...> 
wrote:
> The standard 2x10 JTAG connector is very space consuming, is there 
any 
> other standard configuration suggested for JTAG connector?
> Massimo Manca, Micron Engineering
> 
> 

Hi,

you can check this adapter http://www.tetc.co.jp/sica/e_sica.htm
small and nice with 0.5 mm step

Best regards
Tsvetan
---
PCB prototypes for $26 at http://run.to/pcb 
(http://www.olimex.com/pcb)
PCB any volume assembly (http://www.olimex.com/pcb/protoa.html)
Development boards for ARM, AVR, PIC, MAXQ2000 and MSP430  
(http://www.olimex.com/dev)

Check out the .5 pitch DF-12 series of connector from Hirose 
Electronic Co. Ltd. - here's a typical example - Digikey part number 
H2756-ND

I'm going to give this a try and build both connectors on a small 
pcboard as Leon suggested earlier.

Tom


--- In lpc2000@yahoogroups.com, "Richard" <richas@y...> wrote:
> 
> Keeping the 20-pin connector is nice as it gives a ground wire 
between
> the signal wires (ribbon cable).  Check out this AMP connector
> available at Digikey:
> 
> A3103-ND
> 
> Richard
> 
> 
> --- In lpc2000@yahoogroups.com, Onestone <onestone@b...> wrote:
> > You're right Leon, I think it is Harwin. There are two suppliers. 
> > farnell only has the single row. My supplier gets them in double 
row

> too.
> > 
> > Al

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

From: "tkreyche" <tkreyche@...>
To: <lpc2000@yahoogroups.com>
Sent: Saturday, March 26, 2005 5:01 PM
Subject: [lpc2000] Re: JTAG CONNECTOR


>
>
> Check out the .5 pitch DF-12 series of connector from Hirose
> Electronic Co. Ltd. - here's a typical example - Digikey part number
> H2756-ND
>
> I'm going to give this a try and build both connectors on a small
> pcboard as Leon suggested earlier.

A similar (more ways) Hirose connector is used for inter-board connections 
on the tiny Gumstix PXA255 systems. One Gumstix user said he found them 
difficult to solder, but his technique might have been wrong. I haven't 
tried them yet as no-one has any stocks, and Hirose won't have any for a 
couple of months, at least.

Leon

Checkout Samtec for connectors. They have a lot of interesting small pitch
stuff. And they will send out samples VERY fast.

Joe

> -----Original Message-----
> From: Leon Heller [mailto:leon.heller@...] 
> Sent: Saturday, March 26, 2005 12:59 PM
> To: lpc2000@yahoogroups.com
> Subject: Re: [lpc2000] Re: JTAG CONNECTOR
> 
> 
> ----- Original Message -----
> From: "tkreyche" <tkreyche@...>
> To: <lpc2000@yahoogroups.com>
> Sent: Saturday, March 26, 2005 5:01 PM
> Subject: [lpc2000] Re: JTAG CONNECTOR
> 
> 
> >
> >
> > Check out the .5 pitch DF-12 series of connector from Hirose
> > Electronic Co. Ltd. - here's a typical example - Digikey part number
> > H2756-ND
> >
> > I'm going to give this a try and build both connectors on a small
> > pcboard as Leon suggested earlier.
> 
> A similar (more ways) Hirose connector is used for 
> inter-board connections 
> on the tiny Gumstix PXA255 systems. One Gumstix user said he 
> found them 
> difficult to solder, but his technique might have been wrong. 
> I haven't 
> tried them yet as no-one has any stocks, and Hirose won't 
> have any for a 
> couple of months, at least.
> 
> Leon 
> 
> 
> 
>  
> Yahoo! Groups Links
> 
> 
> 
>  
> 
> 
> 
>

On 26 Mar 2005 at 14:36, Joe Hlebasko wrote:

> 
> Checkout Samtec for connectors. They have a lot of interesting small
> pitch stuff. And they will send out samples VERY fast.
> 

Some of their fine-pitch connectors are also available pre-soldered onto
a flex PCB. This is much smaller then using 50 mil ribbon cable, or even 25 mil
ribbon cable. We have found these flex PCBs also a lot more robust for general
use than ribbon cable. 

Regards
  Anton Erasmus


> > -----Original Message-----
> > From: Leon Heller [mailto:leon.heller@...] 
> > Sent: Saturday, March 26, 2005 12:59 PM
> > To: lpc2000@yahoogroups.com
> > Subject: Re: [lpc2000] Re: JTAG CONNECTOR
> > 
> > 
> > ----- Original Message -----
> > From: "tkreyche" <tkreyche@...>
> > To: <lpc2000@yahoogroups.com>
> > Sent: Saturday, March 26, 2005 5:01 PM
> > Subject: [lpc2000] Re: JTAG CONNECTOR
> > 
> > 
> > >
> > >
> > > Check out the .5 pitch DF-12 series of connector from Hirose
> > > Electronic Co. Ltd. - here's a typical example - Digikey part
> > > number H2756-ND
> > >
> > > I'm going to give this a try and build both connectors on a small
> > > pcboard as Leon suggested earlier.
> > 
> > A similar (more ways) Hirose connector is used for 
> > inter-board connections 
> > on the tiny Gumstix PXA255 systems. One Gumstix user said he 
> > found them 
> > difficult to solder, but his technique might have been wrong. 
> > I haven't 
> > tried them yet as no-one has any stocks, and Hirose won't 
> > have any for a 
> > couple of months, at least.
> > 
> > Leon 
> > 
> > 
> > 
> >  
> > Yahoo! Groups Links
> > 
> > 
> > 
> >  
> > 
> > 
> > 
> > 
> 
> 
> 
> 
> Yahoo! Groups Links
> 
> 
> 
> 
> 
> 
> 

-- 
A J Erasmus