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I2S DAC Object? — Parallax Forums

I2S DAC Object?

65816581 Posts: 132
edited 2012-06-18 20:52 in Propeller 1
Hey,

Has somebody already implemented a I2S DAC Object with routines in PASM?

Comments

  • jmgjmg Posts: 15,193
    edited 2012-06-18 20:52
    6581 wrote: »
    Hey,

    Has somebody already implemented a I2S DAC Object with routines in PASM?

    Good question, i2s DAC certainly are cheap and available.
    I did find this thread,
    http://forums.parallax.com/showthread.php?137661-Planar-EL-Display-Driver
    which suggests you can stream Video with CLK, (not sure of the edge Tsu/Th details) and so that leaves the Frame Clk foir i2c OUT,
    which could be a WAIT Sync'd Ctr out ?

    If the Shifts and frames can all be done in HW, that eases the software so even 192K+ i2s rates should be doable ?

    Might even be enough time to do a challenge like a two frequency low distortion Sine Generator ?
    (could then need a timer stolen from a 2nd cog to do the frame timer, or a /32 cmos part )
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