AXIOMTEK SBC86834 Series, Руководство пользователя, Страница: 83 / 98

SBC86834 All-In-One Mini ITX Board User’s Manual
Digital I/O
77
APPENDIX B
DIGITAL I/O
Digital I/O Software Programming
z
GPI program sample:
I 042A
Read DI1~DI3 Status
You can get a default value is “DF”.
z GPO program sample:
O 2E 87
O 2E 87
O 2E 07
O 2F 08
Select Device 8
O 2E 30
O 2F 04
Set GPIO6
O 2E E4
O 2F 00
GPIO6 pins are programmed as output pins.
O 2E E5
O 2F 00
Clear Data Register
O 2E E6
O 2F N
Set DO1~DO5 Status
N = 00 ~ 1F