Shop OBEX P1 Docs P2 Docs Learn Events
shift registers to bs2 — Parallax Forums

shift registers to bs2

lfreezelfreeze Posts: 174
edited 2005-10-13 23:00 in BASIC Stamp
I am working on· an application which requires a shift register connection (serial side) to a BS2. I am looking at the
TI TLV5618. Has anyone done this ?·Can you direct me to some information which describes the process?
It looks straight forward based on what I am seeing on the TI site, but I have been caught in that trap before.
Thanks.......

Comments

  • Chris SavageChris Savage Parallax Engineering Posts: 14,406
    edited 2005-10-13 14:25
    Hello,

    ·· Are there some special requirements in a shift register that you have where a standard 74HC595 or 74HC165 won't work?· 74HC595s for example, can be daisy chained using 3 I/O lines and give 8, 16, 24 or more outputs.

    ▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
    Chris Savage
    Parallax Tech Support
    csavage@parallax.com
  • Tracy AllenTracy Allen Posts: 6,664
    edited 2005-10-13 16:36
    There was recently an extended discussion of the TVL5618 in a thread you can link to here:


    http://forums.parallax.com/showthread.php?p=550065

    (Chris, the TLV5618 is a 2 channel, 12 bit DAC with SPI interface)

    It looks like it should be easy to get it working, but as you will see, if you follow the thread, the questioner was having quite a few difficulties with it. I've ordered a sample of one myself to check it out. I also posted working code there for the MAX5722, which is a similar chip from Maxim.

    ▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
    Tracy Allen
    www.emesystems.com
  • Chris SavageChris Savage Parallax Engineering Posts: 14,406
    edited 2005-10-13 16:47
    Thanks for clarification Tracy, I saw shift register and thought this was an unrelated thread.

    ▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
    Chris Savage
    Parallax Tech Support
    csavage@parallax.com
  • lfreezelfreeze Posts: 174
    edited 2005-10-13 22:58
    Thanks Chris, I had not considered the 74HC595. I pulled the data sheet and I think it will fit nicely into my project.



    ,
  • Chris SavageChris Savage Parallax Engineering Posts: 14,406
    edited 2005-10-13 23:00
    If you want an example of what 3 shift registers can do, and how few I/O lines they need to take up, check out this thread.

    http://forums.parallax.com/showthread.php?p=552892

    ▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
    Chris Savage
    Parallax Tech Support
    csavage@parallax.com
Sign In or Register to comment.