|
The standard 2x10 JTAG connector is very space consuming, is there any other standard configuration suggested for JTAG connector? Massimo Manca, Micron Engineering -- Internal Virus Database is out-of-date.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 |
|
|
JTAG CONNECTOR
Started by ●March 25, 2005
Reply by ●March 25, 20052005-03-25
|
--- In , 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 |
Reply by ●March 25, 20052005-03-25
|
leon_heller wrote: >--- In , 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 Groups Links ---------- Internal Virus Database is out-of-date.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 |
Reply by ●March 25, 20052005-03-25
|
----- Original Message ----- From: "Micron Engineering" <> To: <> Sent: Friday, March 25, 2005 2:01 PM Subject: Re: [lpc2000] Re: JTAG CONNECTOR > > leon_heller wrote: > >>--- In , 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 |
Reply by ●March 25, 20052005-03-25
|
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 , 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 > > > > > > > > > > > > > >>. > > |
|
|
Reply by ●March 25, 20052005-03-25
|
--- In , 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 |
Reply by ●March 25, 20052005-03-25
|
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 , 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 > <http://www.netflix.com/Default?mqso`190075" target="_blank" rel="nofollow">http://us.ard.yahoo.com/SIG9n0d3fk/M)8184.6191685.7192823.3001176/D=groups/S06554205:HM/EXP11854094/A%93423/R=0/SIGel9gslf/*http://www.netflix.com/Default?mqso`190075 > > > >. > > |
|
|
Reply by ●March 25, 20052005-03-25
|
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 , 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 , 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 > > > > > > > > > > > > > > > > > > <http://www.netflix.com/Default?mqso`190075>" target="_blank" rel="nofollow">http://us.ard.yahoo.com/SIG9n0d3fk/M)8184.6191685.7192823.3001176/D=groups/S06554205:HM/EXP11854094/A%93423/R=0/SIGel9gslf/*http://www.netflix.com/Default?mqso`190075> > > > > > > > > > > >. > > > > > > > > > > > |
Reply by ●March 25, 20052005-03-25
|
----- Original Message ----- From: "Richard" <> To: <> 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 |
Reply by ●March 25, 20052005-03-25
|
--- In , 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) |
