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Visitor II
July 1, 2003
Question

enable the gpio(atlas)

  • July 1, 2003
  • 3 replies
  • 955 views
Posted on July 01, 2003 at 13:08

enable the gpio(atlas)

    This topic has been closed for replies.

    3 replies

    eliahuAuthor
    Visitor II
    July 1, 2003
    Posted on July 01, 2003 at 08:57

    hi all

    In order to access the GPIO i need to access register 0xCF8 to enable the GPIO

    As you know register 0xCF8 is 32 bit register

    How should I access register 0xCF8 (I am using OUT command that can access 8 bit data) ?

    Visitor II
    July 1, 2003
    Posted on July 01, 2003 at 12:15

    It is not possible to split 32 bits access in 0xcf8 into a series of 8 bits access and your OUT command is unusable in this case.

    You need a true 32 bits I/O access.

    Which compiler are you using? There is probably ways to manage 32 bits I/O, maybe through in-line assembly?

    Farfalla
    eliahuAuthor
    Visitor II
    July 1, 2003
    Posted on July 01, 2003 at 13:08

    Quote:

    hii

    i using debug of dos6.22

    and the command is (out dx,al)

    how can I do with debug