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RESET pin on Basic Stamp - leave it open or connect to+5V — Parallax Forums

RESET pin on Basic Stamp - leave it open or connect to+5V

ArchiverArchiver Posts: 46,084
edited 2003-08-18 19:55 in General Discussion
If I don't plan to use the reset button, is it better to leave it
unconnected or connect to +5V in the basic stamp?
Thanks
Mohammed

Comments

  • ArchiverArchiver Posts: 46,084
    edited 2003-08-15 18:33
    Leave it open -- it is pulled-up to 5V on the Stamp module. If you want
    to externally reset the Stamp, you may do so by momentarily taking this
    pin low. You can do this with a N.O. switch to ground, or in special
    cases you might use some kind of external watchdog circuit.

    -- Jon Williams
    -- Applications Engineer, Parallax
    -- Dallas Office

    Original Message
    From: mohammedrasiq [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=1n0a7TPERoc7DwlkBGYmpmm9tMyANPNaQl-hOh4yJRaTxyq8iYDWk0BC8V2wOdtmVAFVjyAKVbzd6MfrY1jVTv6R]mohammedrasiq@y...[/url
    Sent: Friday, August 15, 2003 11:31 AM
    To: basicstamps@yahoogroups.com
    Subject: [noparse][[/noparse]basicstamps] RESET pin on Basic Stamp - leave it open or
    connect to+5V


    If I don't plan to use the reset button, is it better to leave it
    unconnected or connect to +5V in the basic stamp?
    Thanks
    Mohammed


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  • ArchiverArchiver Posts: 46,084
    edited 2003-08-15 20:11
    In a message dated 8/15/2003 9:31:55 AM Pacific Daylight Time,
    mohammedrasiq@y... writes:

    >
    > If I don't plan to use the reset button, is it better to leave it
    > unconnected or connect to +5V in the basic stamp?
    > Thanks
    > Mohammed

    As the reset pin is an input, it is never a good idea to leave open. Tie
    reset to +5v via 10K ohms


    [noparse][[/noparse]Non-text portions of this message have been removed]
  • ArchiverArchiver Posts: 46,084
    edited 2003-08-15 21:30
    As discussed earilier, that pin is pulled-up onboard the BS2 module, so
    there is no need to connec to anything; it is safe to leave alone.

    -- Jon Williams
    -- Applications Engineer, Parallax
    -- Dallas Office

    Original Message
    From: smartdim@a... [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=4qV9dNBWeuq_DgbDx6fU8ucLviadnaSvJIHjeS2F2sFEAmODomcQ6pLxXmzgCSEtCnyhTJMz3Hmx8do]smartdim@a...[/url
    Sent: Friday, August 15, 2003 2:12 PM
    To: basicstamps@yahoogroups.com
    Subject: Re: [noparse][[/noparse]basicstamps] RESET pin on Basic Stamp - leave it open or
    connect to+5V


    In a message dated 8/15/2003 9:31:55 AM Pacific Daylight Time,
    mohammedrasiq@y... writes:

    >
    > If I don't plan to use the reset button, is it better to leave it
    > unconnected or connect to +5V in the basic stamp?
    > Thanks
    > Mohammed

    As the reset pin is an input, it is never a good idea to leave open. Tie

    reset to +5v via 10K ohms


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


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  • ArchiverArchiver Posts: 46,084
    edited 2003-08-15 23:18
    In a message dated 8/15/2003 1:31:53 PM Pacific Daylight Time,
    jwilliams@p... writes:

    >
    > As discussed earilier, that pin is pulled-up onboard the BS2 module, so
    > there is no need to connec to anything; it is safe to leave alone.
    >
    > -- Jon Williams
    > -- Applications Engineer, Parallax
    > -- Dallas Office

    And if you build your stamp from a discrete component kit, it is advisable to
    use a pull up (or pull down) resistor on any unused input.

    Ken


    [noparse][[/noparse]Non-text portions of this message have been removed]
  • ArchiverArchiver Posts: 46,084
    edited 2003-08-15 23:21
    In a message dated 8/15/2003 9:31:55 AM Pacific Daylight Time,
    mohammedrasiq@y... writes:

    >
    > If I don't plan to use the reset button, is it better to leave it
    > unconnected or connect to +5V in the basic stamp?
    > Thanks
    > Mohammed
    >

    Are you building a stamp on your own circuit board from discrete components?
    If the answer is yes, it is advisable to use a pull up resistor.



    [noparse][[/noparse]Non-text portions of this message have been removed]
  • ArchiverArchiver Posts: 46,084
    edited 2003-08-18 18:58
    Thanks. I am using the BS2p24 module into a PCB. In this case, you
    say, it is alright to leave the RESET pin open, right?

    --- In basicstamps@yahoogroups.com, smartdim@a... wrote:
    > In a message dated 8/15/2003 9:31:55 AM Pacific Daylight Time,
    > mohammedrasiq@y... writes:
    >
    > >
    > > If I don't plan to use the reset button, is it better to leave it
    > > unconnected or connect to +5V in the basic stamp?
    > > Thanks
    > > Mohammed
    > >
    >
    > Are you building a stamp on your own circuit board from discrete
    components?
    > If the answer is yes, it is advisable to use a pull up resistor.
    >
    >
    >
    > [noparse][[/noparse]Non-text portions of this message have been removed]
  • ArchiverArchiver Posts: 46,084
    edited 2003-08-18 19:55
    Yes, because it is dealt with on the module. If you need an external
    reset, then you simply pull that pin down for a moment and release it.

    -- Jon Williams
    -- Applications Engineer, Parallax
    -- Dallas Office

    Original Message
    From: mohammedrasiq [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=xF1u1A1o78FNUe1t2CxEbAIczvrmIiPnl1VgDh9lGEk3vgOi3ul5n6nAQBbiOZLKJcpZS8zSXU7_jaWLR5ci4Q]mohammedrasiq@y...[/url
    Sent: Monday, August 18, 2003 12:58 PM
    To: basicstamps@yahoogroups.com
    Subject: [noparse][[/noparse]basicstamps] Re: RESET pin on Basic Stamp - leave it open or
    connect to+5V


    Thanks. I am using the BS2p24 module into a PCB. In this case, you
    say, it is alright to leave the RESET pin open, right?

    --- In basicstamps@yahoogroups.com, smartdim@a... wrote:
    > In a message dated 8/15/2003 9:31:55 AM Pacific Daylight Time,
    > mohammedrasiq@y... writes:
    >
    > >
    > > If I don't plan to use the reset button, is it better to leave it
    > > unconnected or connect to +5V in the basic stamp?
    > > Thanks
    > > Mohammed
    > >
    >
    > Are you building a stamp on your own circuit board from discrete
    components?
    > If the answer is yes, it is advisable to use a pull up resistor.
    >
    >
    >
    > [noparse][[/noparse]Non-text portions of this message have been removed]


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