©2018 NEC Display Solutions, Ltd.
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Point an IR Remote at the IR sensor on the display and press some buttons. Output should be seen
showing the raw pulses received.
7.6 Enabling the serial port (UART) to the display and allowing
application access
1.
Make sure the display support is enabled.
a.
On the NEC display select the
COMPUTE MODULE
video input.
b.
Navigate to the
COMPUTE MODULE
menu on the OSD.
c.
Select
SERVICE MENU
.
d.
Confirm the
MONITOR CONTROL
is set to
ENABLE
.
e.
If not set, then:
i.
Select
SETTING LOCK
and then select
OFF
.
ii.
Enter the passcode. The default is
0 0 0 0
.
iii.
Select
MONITOR CONTROL
and then select
ENABLE
.
2.
Edit the cmdline.txt file to allow app access to the serial port and prevent bootup information
being sent to the display:
sudo nano /boot/cmdline.txt
Edit to remove the section “
console=serial0,115200
” or similar such as
“
console=ttyAMA0,115200
”
Save the file by pressing o then ENTER.
Exit Nano by pressing C x.
a
b
d
c
