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serial port or I/O pin ? — Parallax Forums

serial port or I/O pin ?

Little BrotherLittle Brother Posts: 2
edited 2006-04-03 15:53 in BASIC Stamp
Would I require to interface this to the serial port or could I just tie RTS & CTS high and connect the data lead to a I/O pin ?
pdf
pdf
serial data.pdf
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Comments

  • Mike GreenMike Green Posts: 23,101
    edited 2006-04-03 15:51
    Electrically, this looks like you could tie it to an I/O pin. It's a 5V true high serial bit stream. It's not clear from this single page of documentation how the data is controlled (clocked). It's a 17 bit serial data stream, but at what rate? There are two control signals for Request and Ready. If Request is a bit clock, then you could use SHIFTIN to get the data, but it's not clear from the data sheet.
  • Jon WilliamsJon Williams Posts: 6,491
    edited 2006-04-03 15:53
    It looks like that device is electrically-compatible with the Stamp's I/O pins -- but that document is lacking connection/interfacing details.

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    Jon Williams
    Applications Engineer, Parallax
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