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Different video connections Quickplayer Extreme and Human Interface Board — Parallax Forums

Different video connections Quickplayer Extreme and Human Interface Board

skylightskylight Posts: 1,915
edited 2013-01-11 10:13 in Propeller 1
I've noticed that the Quickplayer Extreme and the Human Interface Board have a difference on the video connection, The quickplayer uses pins 12,13&14 whereas the HIB uses pins12-15, Why the extra connection pin 15 on the HIB? looking at the schematics for the HIB pins 12 thru 15 all connect together through their resistors, why doesn't the quickplayer use pin 15 for video?

Comments

  • Phil Pilgrim (PhiPi)Phil Pilgrim (PhiPi) Posts: 23,514
    edited 2013-01-10 19:13
    You don't need pin 15 for baseband video. It's used only to add a frequency-modulated audio subcarrier to broadcast video, which hardly anyone ever uses.

    -Phil
  • skylightskylight Posts: 1,915
    edited 2013-01-11 06:54
    So although connected by the HIB the software like the quickplayer games will not utilise it? Thanks Phil, seems like Parallax could free up that pin in a future release of the HIB that would give 5 completely free I/O's pins 4-7 and 15, 0-3 on the Aux port are shared by the SD card holder.

    Just wonder why Parallax decided to use the pin for that purpose if virtually redundant?

    Whilst on the subject I noticed that Pins 24-25 on the HIB are the mouse whereas on the Quickplayer they are the Wii controller #1 would this be a problem or could the mouse be used for control of the quickplayer games? perhaps OBC(Jeff) could answer that.
  • Oldbitcollector (Jeff)Oldbitcollector (Jeff) Posts: 8,091
    edited 2013-01-11 06:59
    @skylight,

    I'm afraid I've not given the mouse a lot of love in any of my designs to date. My last board uses 24-25 to support an extended VGA color mode. The truth is that I don't think there was more than one or two programs which used the mouse at all. For the programs which use the mouse, you can change the pin settings in the Spin source code to use 26-27 (normally used for PS/2 Keyboard, but the exact same circuit), plug in the mouse and take off.

    Jeff
  • skylightskylight Posts: 1,915
    edited 2013-01-11 07:09
    Thanks Jeff
    Not sure which quickplayer board revision I have (purchased via Parallax) but looking at the schematics it showed 24&25 as the controller , I'll have to test the board to see what pins it goes to.
    I've just found a ps2 to wii controller adaptor on ebay so I could utilise either the mouse or keyboard pins on the HIB (24-25 mouse 26-27 keyboard) as Wii controllers, This would give compatibility with the games?

    Edit: The only marking I can see on the quickplayer board is top left under your OBC signature are the roman numerals MMXII. though from what i can see by the tracks pin 24 definitely goes to controller #1
  • skylightskylight Posts: 1,915
    edited 2013-01-11 09:21
    One other thing, the status Leds P16-P23 on the HIB same as on the quickstart, does this mean you can no longer use them with the outa statement as wouldn't this cause conflict with the vga port? Could damage result if you did?
  • Oldbitcollector (Jeff)Oldbitcollector (Jeff) Posts: 8,091
    edited 2013-01-11 09:30
    I doubt this would cause any real damage. When I pre-load a Quickstart with BASIC here to ship them, the lights all "light up" and flicker with VGA data going to 16-23.
  • Oldbitcollector (Jeff)Oldbitcollector (Jeff) Posts: 8,091
    edited 2013-01-11 09:33
    skylight wrote: »
    Thanks Jeff
    Not sure which quickplayer board revision I have (purchased via Parallax) but looking at the schematics it showed 24&25 as the controller , I'll have to test the board to see what pins it goes to.
    I've just found a ps2 to wii controller adaptor on ebay so I could utilise either the mouse or keyboard pins on the HIB (24-25 mouse 26-27 keyboard) as Wii controllers, This would give compatibility with the games?

    Edit: The only marking I can see on the quickplayer board is top left under your OBC signature are the roman numerals MMXII. though from what i can see by the tracks pin 24 definitely goes to controller #1

    No, I really doubt the adapter would work as the Wii controller is an I2C device. (but then I've been surprised before!) I'm getting ready to update that product. I'll probably move one of the controllers to 28-29 as I've just done with the latest VGAplus board.

    Jeff
  • skylightskylight Posts: 1,915
    edited 2013-01-11 10:13
    Oldbitcollector (Jeff) wrote: »
    No, I really doubt the adapter would work as the Wii controller is an I2C device. (but then I've been surprised before!) I'm getting ready to update that product. I'll probably move one of the controllers to 28-29 as I've just done with the latest VGAplus board.

    Jeff
    I was presuming that the adaptor was just wire connections to the two pins or do you mean that the HIB circuitry puts components between the prop pins and ps2 connectors that the quickplayer board doesn't which may affect the comms from the wii controller? In other words the HIB cannot be used to play the quickplayer games like the quickplayer board can using the wii controllers?
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