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# of ADC/DAC in P2 = 4 or 64? — Parallax Forums

# of ADC/DAC in P2 = 4 or 64?

technopoltechnopol Posts: 15
in Propeller 2

The question is the subject. In some docs I read there are 4, and in others that there is one per port. Just to be sure I'm dead and in paradise.

Paul Richer

Comments

  • cgraceycgracey Posts: 14,151

    Every pin has an ADC and a DAC.

  • Wuerfel_21Wuerfel_21 Posts: 5,051

    IDK why, but some of the distributors have weird wrong values listed.

    The 4 might be coming from the fact that the ADCs and DACs for certain purposes (ADC/DAC streaming and GETSCP/SETDACS instructions, off the top of my head) are treated as groups of 4.

  • pik33pik33 Posts: 2,366

    64 :)

    Fast 8-bit DACs extended to 16bit via several tricks, which can still give 16-bit @ > 1.25 MHz.

    4 DACs is what you can control via 1 cog using setdacs or a streamer, but nothing will prevent you to use wypin.

    64 not as perfect as DACs, but still good, ADCs

    Distributors have never seen a chip with 64 DACs on board :)

  • technopoltechnopol Posts: 15

    Thx so much to all for your quick replies. I will definitely not sleep for a few years.

    Chip, I love you and your work!

  • cgraceycgracey Posts: 14,151

    @technopol said:
    Thx so much to all for your quick replies. I will definitely not sleep for a few years.

    Chip, I love you and your work!

    Get sleep in order to live long.

    A lot of people here on this forum made huge contributions to the Prop2 design. I got to tie it all together, or fit it into an undersized bag. People here are also making lots of tools and software.

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