OLIMEX© 2015
IMX233-OLinuXino-MAXI user's manual
GPIO connector hardware
GPIO
Pin# Signal Name
Processor pin#
GPIO
Pin#
Signal Name
Processor pin#
1
BAT
103
21
PIN8/LCD_D07
9
2
GND
30, 35, 98,
105, 112, 118
22
PIN27/PWM2
91
3
PIN17/LCD_D16
19
23
PIN7/LCD_D06
8
4
PIN18/LCD_D17/LAN_RES 20
24
PIN28/SOFT_SDA
31
5
PIN16/LCD_D15
28
25
PIN6/LCD_D05
7
6
PIN19/LCD_DOTCLK
17
26
PIN29/SOFT_SCL
34
7
PIN15/LCD_D14
29
27
PIN5/LCD_D04
6
8
PIN20/LCD_VSYNC
16
28
PIN30
81
9
PIN14/LCD_D13
26
29
PIN4/LCD_D03
5
10
PIN21/LCD_HSYNC/
I2C_SDA
15
30
PIN31
82
GPIO
Pin# Name
Processor pin#
GPIO
Pin# Name
Processor pin#
11
PIN13/LCD_D12
27
31
PIN3/LCD_D02
4
12
PIN22/LCD_EN/I2C_SCL
11
32
PIN32/LRADC1
107
13
PIN12/LCD_D11/UEXT_CS 25
33
PIN2/LCD_D01
3
14
PIN23/LCD_DISP
12
34
PIN33/LRADC0
108
15
PIN11/LCD_D10
24
35
PIN1/LCD_D00
2
16
PIN24/LCD_WR
13
36
PIN34/MIC
116
17
PIN10/LCD_D09
23
37
+5VUEXT
102
18
PIN25/LCD_RS
14
38
3.3VREG
-
19
PIN9/LCD_D08/
SSP2_MISO
22
39
VIN
-
20
PIN26/LCD_CS
10
40
GND
30, 35, 98,
105, 112, 118
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
ones filled with “Not implemented” doesn't have Linux support by the time of writing and will be
updated overtime. “Linux GPIO” is the one you should use in Linux (the one in the datasheet);
“OLinuXino name” is the pin as written on the bottom of the board. ”OLinuXino GPIO Connector
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