Commell FE-97G Manual do Utilizador descarregar pdf (Página 53)

FE-97G User’s Manual

52-

Appendix D <Programming GPIO’s>

The GPIO’ s can be programmed with the MSDOS debug program using

simple IN/ OUT commands. The following lines show an example how to do

this.

GPIO0…..GPIO7 bit0……bit7

-o 2E 87

-o 2E 87 ;Enter configuration

-o 2E 07

-o 2F 09 ;Enable GPIO’s function

-o 2E 30

-o 2F 02 ;Enable GPIO’s configuration

-o 2E F0

-o 2F xx ;Set GPIO’s as input/output; set ‘1’ for input,’0’for

output

-o 2E F1

-o 2F xx ;If set GPIO’s as output, in this register its value

can be set

Optional:

-o 2E F2

-o 2F xx ; Data inversion register; ‘1’ inverts the current

value of the bits,’0’ leaves them as they are

-o 2E 30

-o 2F 01 ; Active GPIO’s

For further information, please refer to Winbond W83627DHG datasheet.

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Commell FE-97G Manual do Utilizador Página 53