Shop OBEX P1 Docs P2 Docs Learn Events
74LS165 - Parallel in/serial out — Parallax Forums

74LS165 - Parallel in/serial out

ArchiverArchiver Posts: 46,084
edited 2002-04-15 01:21 in General Discussion
Anyone using a '165 with the Stamp 2?? I can't seem to make it work. I have
the reverse function device (74HC595) working just fine but the 165 is giving
me a problem.

One possible thing is the clocking of the device. The '595 transfers the data
to the outputs when you pulse the "latch" pin. I don't see a similar pin on
this device.

Any help out there??

Mike B.


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

Comments

  • ArchiverArchiver Posts: 46,084
    edited 2002-04-15 00:52
    Hi Mike:

    I have several 165's in series and they work great. Data from paralell
    inputs is outputted to the stamp on pin 7. Use 1 for your enable low and
    and 2 for clock. You will need 3 leads to your bs2. Pin 16 is 5V pin 9
    goes to 10 to daisy chain 8 & 15 are grd. the rest are inputs. Use the
    shiftin X,Y lsbpre [noparse][[/noparse]datain\16] for 2 devices.

    Eric
    Original Message
    From: "Mike Blier" <w6ffc@p...>
    To: "Basicstamps@Yahoogroups.Com" <basicstamps@yahoogroups.com>
    Sent: Sunday, April 14, 2002 7:13 PM
    Subject: [noparse][[/noparse]basicstamps] 74LS165 - Parallel in/serial out


    > Anyone using a '165 with the Stamp 2?? I can't seem to make it work. I
    have the reverse function device (74HC595) working just fine but the 165 is
    giving me a problem.
    >
    > One possible thing is the clocking of the device. The '595 transfers
    the data to the outputs when you pulse the "latch" pin. I don't see a
    similar pin on this device.
    >
    > Any help out there??
    >
    > Mike B.
    >
    >
    > [noparse][[/noparse]Non-text portions of this message have been removed]
    >
    >
    > To UNSUBSCRIBE, just send mail to:
    > basicstamps-unsubscribe@yahoogroups.com
    > from the same email address that you subscribed. Text in the Subject and
    Body of the message will be ignored.
    >
    >
    > Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
    >
    >
  • ArchiverArchiver Posts: 46,084
    edited 2002-04-15 01:13
    Ok Eric:

    Thanks a lot!! I got screwed over by a clip lead that is OPEN !!!
    Arrrgggg... It is work now but a bit strange. I will go make the changes
    you suggest. Thanks, you saved me 2 stamp pins from the way I was trying to
    make it work. I'm going to eventually be reading a two digit, BCD
    thumbwheel switch..

    Mike B.
    Original Message
    From: "Eric Adams" <hugs102@b...>
    To: <basicstamps@yahoogroups.com>
    Sent: Sunday, April 14, 2002 4:52 PM
    Subject: Re: [noparse][[/noparse]basicstamps] 74LS165 - Parallel in/serial out


    > Hi Mike:
    >
    > I have several 165's in series and they work great. Data from paralell
    > inputs is outputted to the stamp on pin 7. Use 1 for your enable low and
    > and 2 for clock. You will need 3 leads to your bs2. Pin 16 is 5V pin 9
    > goes to 10 to daisy chain 8 & 15 are grd. the rest are inputs. Use the
    > shiftin X,Y lsbpre [noparse][[/noparse]datain\16] for 2 devices.
    >
    > Eric
    >
    Original Message
    > From: "Mike Blier" <w6ffc@p...>
    > To: "Basicstamps@Yahoogroups.Com" <basicstamps@yahoogroups.com>
    > Sent: Sunday, April 14, 2002 7:13 PM
    > Subject: [noparse][[/noparse]basicstamps] 74LS165 - Parallel in/serial out
    >
    >
    > > Anyone using a '165 with the Stamp 2?? I can't seem to make it work. I
    > have the reverse function device (74HC595) working just fine but the 165
    is
    > giving me a problem.
    > >
    > > One possible thing is the clocking of the device. The '595 transfers
    > the data to the outputs when you pulse the "latch" pin. I don't see a
    > similar pin on this device.
    > >
    > > Any help out there??
    > >
    > > Mike B.
    > >
    > >
    > > [noparse][[/noparse]Non-text portions of this message have been removed]
    > >
    > >
    > > To UNSUBSCRIBE, just send mail to:
    > > basicstamps-unsubscribe@yahoogroups.com
    > > from the same email address that you subscribed. Text in the Subject
    and
    > Body of the message will be ignored.
    > >
    > >
    > > Your use of Yahoo! Groups is subject to
    http://docs.yahoo.com/info/terms/
    > >
    > >
    >
    >
    > To UNSUBSCRIBE, just send mail to:
    > basicstamps-unsubscribe@yahoogroups.com
    > from the same email address that you subscribed. Text in the Subject and
    Body of the message will be ignored.
    >
    >
    > Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
    >
    >
  • ArchiverArchiver Posts: 46,084
    edited 2002-04-15 01:21
    The 74HC165 works very well with the Stamp 2 -- I use them all the time.
    Download the StampWorks documentation and code from the Parallax site for a
    working example and documentation.

    -- Jon Williams
    -- Parallax


    In a message dated 4/14/02 6:17:16 PM Central Daylight Time,
    w6ffc@p... writes:


    > Anyone using a '165 with the Stamp 2?? I can't seem to make it work. I
    > have the reverse function device (74HC595) working just fine but the 165
    > is giving me a problem.
    >
    > One possible thing is the clocking of the device. The '595 transfers the
    > data to the outputs when you pulse the "latch" pin. I don't see a similar
    > pin on this device.
    >
    >




    [noparse][[/noparse]Non-text portions of this message have been removed]
Sign In or Register to comment.