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Launchpad J5 connector

Stephan Buchholz
Prodigy 50 points


Does anyone know what kind of connector is used to program the ICDI  on the stellaris launchpad?

I want to use some thing similar on a PCB I'm Designing.

I need a connector for a cable

thanks

  • 0
    Guru 117855 points

    Beyond some connector - won't you need that pre-programmed, LX4F MCU - with the ICDI functionality?  (recall there are 2 MCUs on your board - one solely for ICDI)

    Is that ICDI MCU even planned for Sale?  And - should you place that MCU on "your board" - haven't you unnecessarily raised the cost of your board?  (as it - like launchpad) - now has 2 MCUs when most employ "plug-in" JTAG/SWD Probe to program their board's "single" MCU.

    Should that pre-programmed ICDI MCU be available for Sale - suspect you'd do better to populate it on a small, separate board - and use that as your JTAG/SWD probe...

  • 0
    Guru 35595 points

    Are you just looking for a connector that is physically "similar", or are you also looking to implement similar functionality?

    Surely, it should be easy enough to identify connectors by looking in the 'connectors' section of any of the big catalogues - RS, Farnell, Mouser, DigiKey, et al...

    Or a connector specliaist like Samtec...

    In what way(s), specifically, do you want it "similar" ?

  • 0 in reply to cb1_mobile
    Prodigy 50 points

    no since I'm going to use the Jtag unit I already have

  • 0 in reply to Andy Neil
    Prodigy 50 points

    Don't you think I've already looked

    J5 is on the back of the Launchpad board it's 10 pads in a 2x5 configuration

    with alignment pins on both ends . Sure I could use test pins in a fixture but that's not

    not what I'm am looking for. I need the small size as the board I'm making is just a LITTLE bit

    crowded .

  • 0 in reply to Stephan Buchholz
    Genius 5695 points

    If you are referring to the connector labelled J5 on SHeet three on the bottom RH side...

    Perhaps you mean the one labelled: TC2050-IDC-NL

    The one where if you do a google search you get stuff like this... http://www.tag-connect.com/tag-connect-2050-IDC-TG2050IDCNL

    Tag-Connect’s TC2050-IDC-NL “No Legs” Plug-of-Nails™ cable is a 10-conductor cable fitted with a spring-pin Tag-Connector that conveniently plugs directly into your PCB and terminates in a 0.1” ribbon connector.

    Tag-Connect cables provide a simple, reliable means of connecting Debuggers and Programmers or other test equipment to your PCB’s while lowering board costs and facilitating efficient production programming.

    Tag-Connect uses a specially designed (Patent Pending) connector which eliminates the need for putting a programming header or other mating connector on every PCB. Instead, Tag-Connect uses tried and tested spring-pins rated for over 100,000 operations to make a secure connection to a special footprint pattern of pads and locating holes in your PCB.

    The tiny “No Legs” footprint takes only 0.03 square inches (about the same board space as a couple of SMT resistors) which means you can locate the footprint right next to the MCU if desired.

    This 10-conductor cable has a TC2050-NL Tag-Connector on one end and a standard 0.1” ribbon connector on the other and is suitable for use with most many MCU’s / FPGA’s and JTAG programming and debug operations.

    A growing range of adaptors are available for specific and generic applications such as Xilinx SPARTAN and VERTEX FPGA’s, and TI MSP430 (TC2050-IDC-430).

    You mean that connector?

  • 0 in reply to Dave Robinson
    Prodigy 50 points

    thank you Mr. Robinson

    Frankly I didn't even see the connector on the schematic

    Must be getting old ..........................................................and stupid

    thanks again

  • 0 in reply to Stephan Buchholz
    Guru 47900 points

    At risk of your ire - believe something's been overlooked here - and will prove valuable to you...

    BTW - your "Must be" description well describes both Mr. Robinson and this reporter.  (you are among friends)

    TI produces a wonderful, "compact" 20 pin (0.1" pitch) to 10 pin (0.05" pitch) JTAG Adapter board (MDL-ADA2) - which includes an MCU reset switch.  As this mates with a 10 pin, 0.05" pitch male header - it is 1/4 the size of "normal" 20 pin JTAG header.  And - it includes a fine pitch ribbon cable (replaceable) to mate with your board's header.

    Don't know if this header will mate w/your launchpad - but our group considers this a well-thought, well-executed JTAG/SWD solution.  (far exceeds any alternative we could find)  We were fortunate to be "gifted" w/several - seem to recall this at/around 20 USD @ TI store...

  • 0 in reply to cb1
    Genius 5695 points

    CB:

    The MDL-ADA2 appears to be a cable mating solution. The one I dug out appears to be a temporary attachment -- spring loaded pressure contact for short term use for automated manufacturing -- to load board for example. Also it appears to be handy for troubleshooting and testing -- perhaps automated. Different purposes it seems. I had looked at that pad and ignored it previously -- now I know it's use...

    Stephan is fortunate I took a double dose of my Alzheimers meds yesterday... ;-)  (I remembered that I had no memory of that connector and felt I should look...)

    Now what was I doing....????

  • 0 in reply to Dave Robinson
    Guru 47900 points

    Dave Robinson said:
    took a double dose of my Alzheimers meds yesterday

    That - mon (Canadian) ami - likely restricts you to w/in one block of your house.  Recall "RCMP Mounties" came to your rescue - last "double-dose" Tuesday...

  • 0 in reply to cb1
    Prodigy 50 points

    Thanks again

    The Cable is going on a board with a lm4f and a FPGA in very small space, There are already too many connectors

    I don't want to put a connector on the board. A pad setup like the one on the launchpad is the

    perfect size.  I looked a the board and saw the pads but not the connector on the schematic.

    So a triple dose of my med are in order.

  • 0 in reply to Stephan Buchholz
    Guru 47900 points

    Stephan Buchholz said:
    a triple dose of my med are in order.

    I'll notify the proper authorities...