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Spin Stamp — Parallax Forums

Spin Stamp

richaj45richaj45 Posts: 179
edited 2010-05-05 19:31 in Propeller 1
The three pins of the Spin Stamp 1,2,3 are shown as no-connects.
Does any one ever wired them over to the extra I/O pins of the Prop chip?

rich

Comments

  • Mike GreenMike Green Posts: 23,101
    edited 2010-05-05 19:12
    They're not no-connects. Look at the schematic for the SpinStamp. They're wired to I/O pins 16, 17, and 20. The first two are used for Sin and Sout and the last for Attn. Parallax doesn't guarantee that they'll work because the Sin and Sout circuits use 3.3V as the high reference and that won't work with some RS-232 signals. They opted to say that they're not connected rather than say that they'll work with some RS-232 devices and won't work with others. I've used Sin and Sout with some USB to RS232 adapters and it's worked for me.
  • richaj45richaj45 Posts: 179
    edited 2010-05-05 19:31
    Thanks for the info.

    cheers,
    rich
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