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murphyn
Visitor II
August 15, 2003
Question

I2C Programming Details (STPC - Elite)

  • August 15, 2003
  • 4 replies
  • 999 views
Posted on August 15, 2003 at 09:03

I2C Programming Details (STPC - Elite)

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    4 replies

    M
    murphynAuthor
    Visitor II
    August 6, 2003
    Posted on August 06, 2003 at 08:29

    Dear fellows,

    I've been looking around the datasheets for the STPC Elite for details on the I2C port. In the Datasheet for the Elite it references port 22h/23h index 97h, although it says nothing about which bits do what. Had a quick look at the other datasheets including the programming datasheet but to no joy! Anyone know how to program the i2c interface?

    MurF

    M
    moedeker2
    Visitor II
    August 8, 2003
    Posted on August 08, 2003 at 04:11

    Hi MurF,

    please have a look at

    http://www.stmcu.com/forums-cat-471-6.html

    Benno

    T
    thierry239955_st
    Visitor II
    August 13, 2003
    Posted on August 13, 2003 at 07:12

    The i2c port of the STPC Elite is a rest of the DDC lines from graphics part of the other STPCs. This DDC lines are part of the VESA standard to communicate with the screen but you can re-use it for your own purpose.

    It is a software based i2c and you can find source code to drive this 2 lines in the STPC kit.

    Farfalla

    M
    murphynAuthor
    Visitor II
    August 15, 2003
    Posted on August 15, 2003 at 09:03

    Thanks Farfalla/Benno2, got it workin I think, can write 1 and 0 out, havent tried ready yet.

    Ta. MurF
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