Display And Camera - Cherry RINGNECK SOM-PX30-uQ7 User Manual

3.12 Display and Camera

The RINGNECK SOM-PX30-uQ7 supports display output on the LVDS A interface and the camera on the LVDS
B interface.
For MIPI-DSI and MIPI-CSI, the Qseven LVDS pins are used. Those pins are routed to the Video connector.
This expansion slot uses a PCIe connector as mechanical connection, which allows easy development of adapter
boards for various different display types.
The kernel devicetree defines the used display configuration. Example device trees for various output configu-
rations are provided with the EVK software package.
To specify which devicetree should be loaded on boot, edit the configuration variable FDT in the file /boot/
extlinux/extlinux.conf. For example to enable support for the Haikou Video Demo adapter write:
FDT /boot/px30-ringneck-haikou-video-demo.dtb
Note: For systems using FIT images (such is the case for Yocto images), the kernel variable should be edited
instead:
kernel /fitImage#conf-rockchip_px30-ringneck-haikou-video-demo.dtb
Filename
px30-ringneck-haikou.dtb
px30-ringneck-haikou-video-demo.dtb
v1.3.1
Page 12
Qseven Port Function
LVDS A MIPI-DSI
LVDS B MIPI-CSI
Fig. 3.10: Video connector pinout
Functions
Touchscreen display, camera
Requires Video Demo adapter
Alternate Function
LVDS
NC GND
GND LVDS_B_CLK_N
LVDS_A3_N LVDS_A_CLK_P
LVDS_A3_P
GND
GND LVDS_B3_N
GND LVDS_B3_P
LVDS_A2_N GND
LVDS_A2_P
GND
GND
LVDS_B2_N
GND LVDS_B2_P
LVDS_A1_N GND
LVDS_A1_P GND
GND LVDS_B1_N
NC LVDS_B1_P
GND GND
LVDS_A0_N DP_HPD#
LVDS_A0_P
GND
GND LVDS_B0_N
LVDS_A_CLK_N
LVDS_B0_P
LVDS_A_CLK_P GND
GND NC
LVDS_PEN LVDS_BLC_DAT
3V3 NC
LVDS_BLC_CLK
3V3
LVDS_BLT_CTRL 3V3
LVDS_BLEN
GND
NC LVDS_DID_DAT
LVDS_DID_CLK
GPO0
GND GND
12V 12V
12V 12V
GND 12V