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I/O Pin Configurations — Parallax Forums

I/O Pin Configurations

shawnpwilsonshawnpwilson Posts: 10
edited 2005-12-12 04:23 in BASIC Stamp
If a stamp has 16 I/O pins, can they be used in any configuration.· i.e.· use 12 for input and·4 for output.... or .... use all 16 for input only (or output only).· Or is it always fixed at 8 in and 8 out.

Thanks for any responses.

Shawn.

Comments

  • KenMKenM Posts: 657
    edited 2005-12-09 02:40
    yes, any config you desire, see the help file 
    INPUT / OUTPUT Examples 

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    Ken

    Post Edited (KenM) : 12/9/2005 2:44:39 AM GMT
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  • shawnpwilsonshawnpwilson Posts: 10
    edited 2005-12-09 02:50
    Thanks.

    My reason for asking is because I saw the manual where it describes the pin layout.....where it shows the specs on the current sourcing/sinking capabilities for each pin.... then it suggested the max source/sinking on a "Per 8 pin group"

    That "Per 8 pin group" is what threw me.
  • Jon WilliamsJon Williams Posts: 6,491
    edited 2005-12-09 13:12
    The 16 pins of the BS2 are divided into two groups: P0-P7, and P8-P15. You may configure the pins any way you like, so long as you obey the current specifications per pin and per group.

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    Jon Williams
    Applications Engineer, Parallax
  • Philip GamblinPhilip Gamblin Posts: 202
    edited 2005-12-12 04:23
    That is one of the interesting points of the Stamp. Any of the I/O pins can be not only configured for input or output but an pin can receive or send serial data (at TTL levels) as well.
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