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
产品代码
A10-OLinuXino-LIME
OLIMEX© 2014
A10-OLinuXino-LIME user's manual
6.9 GPIO-1 (General Purpose Input/Output) 40pin connector
The GPIO-1 connector has 40 pins. Note that the connector has 0.05'' (50 mil) step between pins.
Olimex also sells a compatible extension cable for the connector named CABLE-40-40-10CM.
Olimex also sells a compatible extension cable for the connector named CABLE-40-40-10CM.
IMPORTANT: the cables and the 0.05'' connectors are very fragile – if you attempt to disconnect
the setup by pulling the cable it might break! Furthermore – you might bend the board's or the
cable's pins! Use pliers or other suitable object to disconnect the connectors carefully!
the setup by pulling the cable it might break! Furthermore – you might bend the board's or the
cable's pins! Use pliers or other suitable object to disconnect the connectors carefully!
This connector features the processor signals needed for audio headphones output and microphone
input. Please note that not only the connectors but also the rest of the schematic is missing! You
would need to add resistors and capacitors. The connector also has the signals needed for a VGA
output. We don't provide software solutions for the VGA video output.
input. Please note that not only the connectors but also the rest of the schematic is missing! You
would need to add resistors and capacitors. The connector also has the signals needed for a VGA
output. We don't provide software solutions for the VGA video output.
Microphone signals are: MICIN1 and VMIC
Headphone signals are: HPOUTL, HPCOM and HPOUTR
VGA signals are: LRADC0, LRADC1, VGA-G, VGA-B and VGA-R
Headphone signals are: HPOUTL, HPCOM and HPOUTR
VGA signals are: LRADC0, LRADC1, VGA-G, VGA-B and VGA-R
A general advice for easier use of the microphone, headphone and VGA interfaces of A10-
OLinuXino-LIME is to take a look at the schematics of another board with those interfaces already
installed. For example, those are present in A20-OLinuXino-MICRO. Inspect the schematic
carefully.
OLinuXino-LIME is to take a look at the schematics of another board with those interfaces already
installed. For example, those are present in A20-OLinuXino-MICRO. Inspect the schematic
carefully.
The signal layout is described below:
GPIO-1 connector
Pin # Signal name
Processor pin
Pin # Signal name
Processor pin
1 +5V
-
2 GND
-
3 +3.3V
-
4 GND
-
5 PG0
F20
6 LRADC0
AB23
7 PG1
E21
8 LRADC1
AB22
9 PG2
E20
10 MICIN1
AC20
11 PG3
D21
12 VMIC
AA21
13 PG4
D20
14 HPOUTL
Y19
15 PG5
C21
16 HPCOM
AA19; AA20
17 PG6
E19
18 HPOUTR
W19
19 PG7
C20
20 VGA-G
AC16
21 PG8
D19
22 VGA-B
AB16
23 PG9
C19
24 VGA-R
AC17
25 PG10
D18
26 UART0-RX
B7*
27 PG11
C18
28 UART0-TX
A7*
29 PC3/SATA-PWR-EN
L22**
30 PB21
C7
31 PC18
F22
32 PB20
C8
33 PC19
L21
34 PB19
B8
35 PC20
K21
36 PB18
A8
37 PC21
J21
38 PC24
F21
39 PC22
J20
40 PC23
G19
*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).
**Pin #29 is used to control the power supply available at the 5V_SATA_PWR by default
properly on software and/or hardware level (else there would probably occur wrong levels, loss of data, etc).
**Pin #29 is used to control the power supply available at the 5V_SATA_PWR by default
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