OLIMEX OLinuXino-MAXI User Manual page 29

OLIMEX© 2012
GPIO
Signal Name
Pin#
1 BAT
2 GND
3 PIN17/LCD_D16
4 PIN18/LCD_D17/LAN_RES 20
5 PIN16/LCD_D15
6 PIN19/LCD_DOTCLK
7 PIN15/LCD_D14
8 PIN20/LCD_VSYNC
9 PIN14/LCD_D13
PIN21/LCD_HSYNC/
10
I2C_SDA
GPIO
Name
Pin#
11 PIN13/LCD_D12
12 PIN22/LCD_EN/I2C_SCL
13 PIN12/LCD_D11/UEXT_CS 25
14 PIN23/LCD_DISP
15 PIN11/LCD_D10
16 PIN24/LCD_WR
17 PIN10/LCD_D09
18 PIN25/LCD_RS
PIN9/LCD_D08/
19
SSP2_MISO
20 PIN26/LCD_CS
The hardware is associated differently in the Linux following the GPIO naming conventions
suggested in the iMX233 datasheet. You can check the connection between Linux naming of the
pin, Olimex naming of the pin and the consecutive connector pin number in the table below. The
GPIO connector hardware
GPIO
Processor pin#
Pin#
103
30, 35, 98,
105, 112, 118
19
28
17
29
16
26
15
GPIO
Processor pin#
Pin#
27
11
12
24
13
23
14
22
10
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Signal Name
21 PIN8/LCD_D07
22 PIN27/PWM2
23 PIN7/LCD_D06
24 PIN28/SOFT_SDA
25 PIN6/LCD_D05
26 PIN29/SOFT_SCL
27 PIN5/LCD_D04
28 PIN30
29 PIN4/LCD_D03
30 PIN31
Name
31 PIN3/LCD_D02
32 PIN32/LRADC1
33 PIN2/LCD_D01
34 PIN33/LRADC0
35 PIN1/LCD_D00
36 PIN34/MIC
37 +5VUEXT
38 3.3VREG
39 VIN
40 GND
OLinuXino User's Manual
Processor pin#
9
91
8
31
7
34
6
81
5
82
Processor pin#
4
107
3
108
2
116
102
-
-
30, 35, 98,
105, 112, 118