User`s manual

SBC86831 Series All-In-One Mini ITX Board User’s Manual
Digital I/O
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A p p e n d i x B
Digital I/O
Digital I/O Software Programming
z GPI program sample:
O 2E 87
O 2E 87
O 2E 2A
O 2F FF
Setting GP10~GP17
O 2F FF
O 2E 07
O 2F 07
Select Device 7
O 2E 30
O 2F 01
Setting logic device active
O 2E F0
O 2F E0
GP10~GP14 Setting: output
GP15~GP17 Setting: input
O 2E F1
If output pin, it can be read or written; if
input pin, it can be read only.
I 2F
Display input read value