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Propeller II update - BLOG - Page 39 — Parallax Forums

Propeller II update - BLOG

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  • jmgjmg Posts: 15,173
    edited 2012-05-05 14:14
    Nice images.
    2) I have implemented some minor layout changes to the IO's that will increase functionality ... This is the result of a brainstorm between Chip and Roy Eltham :-)

    4) Chip is making some small changes to the inner core (glue logic) which will not affect the layout that I am doing.

    Do any of these changes, give the counters the ability to flip to shift registers ?
  • Beau SchwabeBeau Schwabe Posts: 6,566
    edited 2012-05-05 16:25
    "Do any of these changes, give the counters the ability to flip to shift registers" - That I'm not sure about ... For changes that I'm doing, the answer would be no, however that could be another story with the core changes Chip is making.
  • evanhevanh Posts: 15,916
    edited 2012-05-05 20:43
    Seairth wrote: »
    I think you are incorrect in this case. It separately mentions "given D or n" as the mask. Maybe another way to ask the question is "what is the function of the mask?"

    Oh, I see, I was still reading the SETMAP encoding. Yeah, port D should prolly be portD to help clarify that it's not talking about register direct addressing.

    As for your original question, dunno. The logical ports A-D vs the physical ports 0-3 are a nicety. Using ports that have bonded pins is not infeasible so portD is probably a better choice than port 3.

    No idea about the masking question.
  • Martin HodgeMartin Hodge Posts: 1,246
    edited 2012-05-05 21:56
    4,242,420,042 transistors.
  • evanhevanh Posts: 15,916
    edited 2012-05-05 22:11
    Lol, I'll stab at 42,000,000.
  • Beau SchwabeBeau Schwabe Posts: 6,566
    edited 2012-05-06 02:06
    Ok, well here is something kind of cool that you guys/gals might like....

    7500um to 14um in 26 seconds:
    http://www.youtube.com/watch?v=LNVxGSpeYD0&feature=youtu.be

    ... I wrote a script in the layout tool that allows me to do this. Looking at the video, next time I'll apply a reverse log rather than just a linear advancement so that the time spent on each magnified view will be equally distributed over the entire video length.

    Enjoy!!
  • Dave HeinDave Hein Posts: 6,347
    edited 2012-05-06 06:04
    Nice video! A logarithmic zoom speed would be nice. The last 2 seconds of the video show some nice detail.
  • Cluso99Cluso99 Posts: 18,069
    edited 2012-05-06 08:07
    My guess (estimate) is in ;)
  • ctwardellctwardell Posts: 1,716
    edited 2012-05-06 08:13
    4,242,420,042 transistors.

    Have you been talking to Arthur Dent again?

    C.W.
  • ratronicratronic Posts: 1,451
    edited 2012-05-06 08:39
    1,500,000 transistors.
  • Dave HeinDave Hein Posts: 6,347
    edited 2012-05-06 15:11
    1,314,612 transistors
  • SeekerSeeker Posts: 58
    edited 2012-05-06 15:18
    3,692,781 transistors... might as well pick one of my favorite number sequences. :)

    Edit to add: That is total transistors.
  • evanhevanh Posts: 15,916
    edited 2012-05-06 15:43
    Looking at the video, next time I'll apply a reverse log rather than just a linear advancement so that the time spent on each magnified view will be equally distributed over the entire video length.

    Yes please :P
  • Cluso99Cluso99 Posts: 18,069
    edited 2012-05-06 16:35
    Seems there may be some confusion about what is inside the core and outside...
    From previous posts, I have presumed that...
    Inside the core:
    Cog processor logic and counter logic
    Outside the core:
    Hub memory
    Cog memory and fifos
    pins and associated logic and routing around the outside of the die
  • W9GFOW9GFO Posts: 4,010
    edited 2012-05-06 18:33
    I'm going to guess 7,750,000 total transistors.
  • Beau SchwabeBeau Schwabe Posts: 6,566
    edited 2012-05-07 12:55
    Here is a better video rendition with logarithmic descent ...

    http://www.youtube.com/watch?v=ghMWI71bGB0

    ..there is still some zoom granularity towards the very end, but this is because the layout tool itself has a snap-zoom at low viewing levels. It's still better than the first video. I would love to provide the RAW mpeg video, but it's 162Megs.

    Enjoy!


    BTW) I love the guesses ... please send them the the E-mail address I have created, so that it's easier to keep track of them.

    The 'outer core' consists of all of the I/O's, all of the memories, all of the PLL's, as well as all of the fuses.
    The 'inner core' is completely digital glue-logic ... AND's, OR's, XOR's, NOT's, NOR's, NANDs, Flip-Flop's, MUX's, etc.
    This inner core constitutes the processing and communication of all of the COGs... if you look at the video, and some of the stills, you can see just by the wiring where the 8-cogs naturally break down into.... As Chip and I have said, it sort of looks like a square pizza. There was no special rendering other than the placement of the logic from the tool to create this pattern, this image emerged based on the symmetry and interconnection/communication of the cogs themselves.
  • localrogerlocalroger Posts: 3,451
    edited 2012-05-07 17:28
    I love the fact that the symmetry is emergent, and isn't the true symmetry of something laid out perfectly and then rotated and stamped eight times but that's obviously slightly different in each slice, the way animals are symmetrical except for a few details like hearts and handedness. The P1 die was iconic and instantly recognizable and the P2 die is going to be iconic and instantly recognizable for completely different reasons.
  • piguy101piguy101 Posts: 248
    edited 2012-05-08 08:37
    How many transistors are in the Propeller I?
  • W9GFOW9GFO Posts: 4,010
    edited 2012-05-08 14:03
    piguy101 wrote: »
    How many transistors are in the Propeller I?

    Three million.
  • Phil Pilgrim (PhiPi)Phil Pilgrim (PhiPi) Posts: 23,514
    edited 2012-05-08 14:18
    My guess: 3.141592 million.

    -Phil
  • Beau SchwabeBeau Schwabe Posts: 6,566
    edited 2012-05-08 15:40
    Phil - lol
  • tonyp12tonyp12 Posts: 1,951
    edited 2012-05-08 16:20
    My guess, 5'432'100

    Side note: soon I think it's time to start a new serious Prop2 update thread.
  • Cluso99Cluso99 Posts: 18,069
    edited 2012-05-08 17:34
    Phil: You do seem to have some serious hangups about that number ;)
  • mindrobotsmindrobots Posts: 6,506
    edited 2012-05-08 17:44
    Phil, your choice is irrational. :thumb:
  • pedwardpedward Posts: 1,642
    edited 2012-05-08 18:15
    Cluso99 wrote: »
    Phil: You do seem to have some serious hangups about that number ;)

    Well, it's a nice round number! ;)
  • JasonDorieJasonDorie Posts: 1,930
    edited 2012-05-09 10:46
    Phil is just being irrational. ;)
  • evanhevanh Posts: 15,916
    edited 2012-05-09 16:44
    ... except for some significant rationalisation in that there 7 digits. :P
  • zemkaczzemkacz Posts: 19
    edited 2012-05-12 14:14
    I am just curious, what software is parallax using for designing the prop 2? More specifically, it looks like you are designing all the gates and whatnot by hand which leads me to ask, are you possibly using an opensource asic design program like Magic or Electric?
  • evanhevanh Posts: 15,916
    edited 2012-05-12 17:15
    Beau is mostly using Laker - http://www.springsoft.com/products/custom-design-and-layout/laker-custom-layout-system

    I think I've read that Chip is using a Stratix - http://www.altera.com/devices/fpga/stratix-fpgas/stratix/stratix/stx-index.jsp - for functional testing.

    not sure what else ...
  • lostcauzlostcauz Posts: 36
    edited 2012-06-01 10:53
    When will the actual transistor count be announced?
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