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Spin Graphic Driver — Parallax Forums

Spin Graphic Driver

att_jayatt_jay Posts: 10
edited 2011-10-19 05:57 in General Discussion
Hello
I am actually after for the spin (propeller) driver for the following graphic display with some demo example if any
http://www.sparkfun.com/products/8799

Thankyou
Jay

Comments

  • Duane DegnDuane Degn Posts: 10,588
    edited 2011-10-19 00:01
    Look in the comments. It looks like Rayman has what you need.

    Duane
  • max72max72 Posts: 1,155
    edited 2011-10-19 05:12
    Check Ray's pages. There is a lot of stuff.
    There is also an object on the obex, which is a slightly modified version of Ray's object, posted with his kind permission.
    There is a big font option using propeller built in fonts, and an inverted mode. I used inverted mode with little backlight in direct sunlight, with acceptable results.

    Anyway the display is quite easy to work with, even if not really fast. You need a lot of free pins (careful if you use flat cables... I had intermittent connections driving me crazy on the protoboard).

    The display works with a 5V power supply, so better place series resistances between the propeller and the display itself.
    Massimo
  • att_jayatt_jay Posts: 10
    edited 2011-10-19 05:37
    Dear Massimo,
    Thank you for your detailed reply...
    >>There is also an object on the obex, which is a slightly modified version of Ray's object, posted with his kind permission.

    could you please send me the link?

    >>There is a big font option using propeller built in fonts.

    please specify it bit more...(thanks)

    Also it would be great if you could send me sample copy of your code for study purposes.

    Cheers
    Jay
  • max72max72 Posts: 1,155
    edited 2011-10-19 05:57
    The object is here (not easy to find...) :
    http://obex.parallax.com/objects/569/

    The HugeLcd_Test1.10 file contains Ray's demo, modified to show some added features. Please check also the orginal code on Ray's website, because Ray is the lord of displays.

    Propeller has built in fonts, used for VGA and video code. I used the fonts in the ROM to show big fonts, in graphics way. The fonts are mixed up (check the propeller manual and the Hydra manual to an in depth explanation), so in the spin code the relevant pixels are extracted from ROM and placed in the display memory.
    I used the display on a sailing boat to show GPS log data, so I searched BIG displays and BIG fonts... :-)

    Massimo
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