Olimex Open Source Hardware Embedded ARM Linux single board computer with Allwinner A10 Cortex-A8 A10-OLINUXINO-LIME A10-OLinuXino-LIME 用户手册
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A10-OLinuXino-LIME
OLIMEX© 2014
A10-OLinuXino-LIME user's manual
6.10 GPIO-2 (General Purpose Input/Output) 40pin connector
The GPIO pins are led out on a separate 40pin connecter. They allow the user to attach additional
hardware, check readings or perform hardware debug. The GPIO-2 connector numbers are printed
at the bottom of the board for your convenience.
hardware, check readings or perform hardware debug. The GPIO-2 connector numbers are printed
at the bottom of the board for your convenience.
GPIO-2 connector
GPIO pin# Signal name
Processor pin#
GPIO pin#
Signal name
Processor pin#
1
5V
-
2
GND
-
3
3.3V
-
4
LDO3_2.8V
Goes to AXP209
5
TWI0-SCK
A15
6
PE0
E23
7
TWI0-SDA
B15
8
PE1
E22
9
PI0
A20
10
PE2
D23
11
PI1
B20
12
PE3
D22
13
PI2
A19
14
PE4
C23
15
PI3
B19
16
PE5
C22
17
PI10
C17
18
PE6
B23
19
PI11
D17
20
PE7
B22
21
PC3/NCE1
L22*
22
PE8
A23
23
PC7/NRB1
J22*
24
PE9
A22
25
PC16
M21
26
PE10
B21
27
PC17
F23
28
PE11
A21
29
PC18
F22
30
PI21
E13
31
PC23
G19
32
PI20
E14
33
PC24/NQS
F21*
34
PI19
D14
35
GPIO1
-
36
PI18
E15
37
GPIO2
-
38
PI17
E16
39
GPIO3
-
40
PI16
E17
Signals marked with * are multiplexed with either a peripheral device or another connector. Ensure that the multiplexing is handled
properly on software and/or hardware level (else there would probably occur wrong levels, loss of data, etc).
properly on software and/or hardware level (else there would probably occur wrong levels, loss of data, etc).
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