Am_Con-Lcd 40Pin Connector - OLIMEX AM3352-SOM User Manual

OLIMEX© 2015

6.6 AM_CON-LCD 40pin connector

The AM_LCD-CON pins are led out on a separate 40pin connecter for the ease of connecting an
LCD. We have tested the ability of the board to interact with such a display. They allow the user to
attach additional hardware, check readings or perform hardware debug.
Important: you need additional adapter board and two different 40PIN ribbon cables to connect an
Olimex display and the LCD_CON. The evaluation board AM3352-SOM-EVB provides a 0.1'' step
LCD connector which eases the hardware interfacing between the board and the display.
The LCD connector is suitable (but not plug-and-play due to the different pin-step) for a number of
Olimex displays and touchscreen panels with different native resolution – the smallest available is
the 4.3'' one called LCD-OLinuXino-4.3TS with native screen resolution of 480×272, through the
7'' one named LCD-OlinuXino-7 with 800×480, to the 1024×600 10.1'' LCD-OlinuXino-10.
The official Linux image of the board lacks ready touschreen support.
Full list of recommended displays for the board might be found in chapter "3.7 Connecting and
calibrating a display".
Pin # Signal name
1 +5V
3 3.3V
5 P0_26/LCD_D21
7 P1_15/LCD_D16
9 P2_7/LCD_D1
11 P2_9/LCD_D3
13 P0_23/LCD_D22
15 P2_11/LCD_D5
17 P2_13/LCD_D7
19 P2_15/LCD_D9
21 P0_22/LCD_D23
23 P1_14/LCD_D17
25 P0_8/LCD_D12
27 P0_10/LCD_D14
29 P2_23/LCD_HSYNC
31 P2_24/LCD_CLK
33 NC*
35 P3_19/LCD_PWR_EN
37 TPX1
39 TPY1
*Pins 33 and 34 do not reach the processor due to the missing resistors r29 and r32. The values of these pins can be
used to change the scanning mode (orientation) of the Olimex displays dynamically. The default scanning mode is "up
to down, right to left". Refer to the display datasheet for possible values. Refer to the display schematic to further trace
AM_CON-LCD connector
Processor ball
-POWER CIRCUIT-
-POWER CIRCUIT-
T11
U13
R2
R4
T10
T2
T4
U2
U10
V13
V2
V4
R5
V5
-
C13
Y22
Y23
Page 28 of 36
Pin # Signal name
2 GND
4 GND
6 P1_13/LCD_D18
8 P2_6/LCD_D0
10 P2_8/LCD_D2
12 P2_10/LCD_D4
14 P1_12/LCD_D19
16 P2_12/LCD_D6
18 P2_14/LCD_D8
20 P2_16/LCD_D10
22 P0_27/LCD_D20
24 P2_17/LCD_D11
26 P0_9/LCD_D13
28 P0_11/LCD_D15
30 P2_22/LCD_VSYNC
32 P2_25/LCD_DE
34 NC*
36 P0_7/PWM0_OUT**
38 TPX2
40 TPY2
AM3352-SOM user's manual
Processor ball
-POWER CIRCUIT-
-POWER CIRCUIT-
R12
R1
R3
T1
T12
T3
U1
U3
U12
U4
V3
T5
U5
R6
-
C18
AA22
AA23