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OLIMEX© 2015
header (like the one on the A20 board) you might use the cable for the A20-OlinuXino-MICRO
(called A20-VGA-CABLE). The 6 signals needed are the 5 signals mentioned about plus GND.
A general advice for easier use of the microphone, headphone and VGA interfaces of A20-
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:
Pin # Signal name
1 +5V
3 +3.3V
5 PG0
7 PG1
9 PG2
11 PG3
13 PG4
15 PG5
17 PG6
19 PG7
21 PG8
23 PG9
25 PG10
27 PG11
29 PC3/SATA-PWR-EN
31 PC18
33 PC19
35 PC20
37 PC21
39 PC22
*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
GPIO-1 connector
Processor pin
-
-
F20
E21
E20
D21
D20
C21
E19
C20
D19
C19
D18
C18
L22**
F22
L21
K21
J21
J20
Page 36 of 49
A20-OLinuXino-LIME user's manual
Pin # Signal name
2 GND
4 GND
6 LRADC0
8 LRADC1
10 MICIN1
12 VMIC
14 HPOUTL
16 HPCOM
18 HPOUTR
20 VGA-G
22 VGA-B
24 VGA-R
26 UART0-RX
28 UART0-TX
30 PB21
32 PB20
34 PB19
36 PB18
38 PC24
40 PC23
Processor pin
-
-
AB23
AB22
AC20
AA21
Y19
AA19; AA20
W19
AC16
AB16
AC17
B7*
A7*
C7
C8
B8
A8
F21
G19
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