AbuseMarK
K LCD Adapterr Manual

Abu
useMaarK LCCD Ad
dapter (revv1)

1.
2.
3.
4.
5.
6.

DisplayPort connector
51‐pin FPC connnector for LCCDpdate
USB connectorr for power or firmware up
Poower button
Poower/Status LED
Exxternal 5V source (see External Power section)sFor functionality of Pow
wer button, sees the “LCD Adapter firm ware featurees and operation” section ((lastpage).

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AbuseMarK
K LCD Adapterr Manual

Connnecting ad
dapterr to LCD Paanel

1.
2.
3.
4.

Carefully lift up
p lever on thee back of connector
e with circuit (gold) side faacing up, and push it into cconnector
Align FPC cable
Sttop when cab
ble reaches shhown positionn. Do not forcce cable furth
her into the coonnector
WhileW
keeping cable alignedd, push back ono the lever tto lock cable inside

If testing withw the boarrd on the bacck of LCD, make sure to plaace paper or ssome other nnon‐conductivve
material between.
bOr else,
ethe boarrd will short circuitcwith thhe aluminum back of the ppanel.

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AbuseMarK
K LCD Adapterr ManualImp
properr conn
nectioon examples

Left image
e: Cable not aligned
acorrecctly, not fully inserted. Pow
wering up likee this will likeely burn the ppanel.
Right image: Cable inse
erted circuit (gold)(side doown, this is in correct.

Exteernal Poweer 5V sourcce
When arranging many panels in array, its easier to source a s ingle 5V conn
nector for all panels and avvoid
e mess.
USB cable

A standarrd 2.54mm (0.1”) pin header connectionn is provided for this purp
pose. User cann solder in pinnheader orr wires directlly. Left‐side iss positive (+) and right sidee is negative (‐). The follow
wing 3 pads (ttx,GND, rx) area NOT relatted to power and 5V must not be conneected to themm at any timee. These pads arefor emerggency firmware recovery oro debugging.

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AbuseMarK
K LCD Adapterr ManualLCD
D Adappter firmw
fware uupgradde anndoperationnRequirred softwa
areSTTMicroelectro
onics DFuSe USB
U Device Fiirmware Upgrrade GUI:
htttp://www.stt.com/web/enn/catalog/toools/PF2579166

Foor firmware update
uon unsupported orr niche OS (e x. Linux), on
ne might be aable to use DF
FUUTIL from httpp://dfu-util.gnumonks.org
g/. This metho
od is not supp
ported and not documented

here.

Upgradde proceddure








Remove power (Unplug USB or disconne
ect external 55V), and presss and HOLD P
Power button,,whilewconnectiing USB cablee. Firmware update on extternal 5V pow
wer is NOT supported.
Sttatus LED willl light up RED
D and remain lit, and new ddevice will insstall “ST Devicce in DFU moode”
Sttart DFuse Deemo application
Inn the “Upgrad
de or verify” box
b in the GU
UI, make sure to uncheck V
Verify After doownload, ifchhecked
Choose upgradde file, wouldd be called likee “highres_reev1.dfu”
Click “Upgradee” button
WhileWupgradinng, LED will fllash green annd red dependding on modee.
WhenW
finishedd, unplug and reconnect USSB.

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AbuseMarK LCD Adapter Manual

LCD Adapter firmware features andoperation
When connected by USB or external 5V source, adapter defaults to full power on, with status LED
glowing BLUE.
One press on power button will switch to STANDBY mode, which turns off backlight, but keeps
DisplayPort connection. This mode is used to keep power consumption lower, or to save backlight
lifetime. In this mode, status LED is glowing RED.
To fully turn off the adapter (including disconnect from DisplayPort signals), press the power button
twice.
●→●→☀ (BLUE – full power on ‐> RED – standby ‐> Full power off (LED off)
Since most common use case does not involve disconnecting from DisplayPort (as this would cause
other monitors to flicker while display adapter is reconfiguring), if adapter is in standby mode for morethan a few seconds, pressing the power button returns to Full power mode, turning on backlight.
●→●→Wait 2+ seconds→● (BLUE – full power on ‐> RED – standby ‐> if monitor is in standby for afew seconds, pressing Power again will go back to FULL power mode (BLUE LED).
To change brightness, press and hold the power button for more than a second. This enters brightness
control mode. In this mode, status led glowing cycles between 2 colors ‐ YELLOW means brightness
DOWN adjustment, and PURPLE means brightness UP adjustment. Once in brightness adjustment mode,
short clicks on power button will adjust brightness in steps up or down respectively. Hold power button
again to switch to next mode, or to save.
●→●→●→● When required brightness is achieved, hold the button until status LED is glowing BLUE.
This will save current brightness to non‐volatile memory.

Other features may be added via firmware updates at a later time.
This information is current as of 2014/03/21.

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K LCD Adapterr Manual
AbuseMarKLCD
D Adappter serialsconsole (aadvannced)
A “serial console”
cfeature is provide
ed in latest firrmware, to coontrol backligght brightnesss, as well as ppower
to panel/bbacklight. This feature is foor advanced usersuand is nnot needed foor normal opeeration.
To use, co
onnect a 3.3V
V TTL to USB/SSerial adapter to the TX, RRX
pins, show
wn on the piccture to the right. The pin betweenbTX, RX is
Ground and is to be coonnected to GND
G or similar pin on theTTL>Serial adapter. Deepending on adapter
atype, RX on the booard
might neeed to be conn
nected to TX ono adapter, and TX to RX.
After harddware connecction is madee, open a seriaal terminal
program (for( example PuTTY or Hyp
perTerminal, etc) and connnect
to the COM port assign
ned to USB/Serial adapter at 115200 baaud,
8N1.
To check consolecoperation, press thet Enter key a few times aand type “help” followed by Enter. If
nothing iss shown on sccreen, swap RX/TXRwires.
The follow
wing commannds are available on serial console
set briightness=x
xxx where xxx is a value fromf
10 to 9550 to set backklight brightness. Note theere
are no spaaces around thet equal signn.
controll bl|dp onn|off will control powerr to backlight (bl) or DisplaayPort (dp) too turn on or off.
For examp
ple, to turn off backlight, typet“control bl offf” and press EEnter. Note th
hat turning off
DisplayPo
ort power will disconnect thet display froom PC, causinng graphics drriver restart.
strobe duration [brightnness] will stoobe (flash) baacklight for duoseconds
uration microhtness to a given value (ottherwise defaault brightnesss value is useed). Backlight
optionallyy setting brighpower mu
ust be off beffore using thiss command, thist can be acchieved by typ
ping “contrrol bl offf”.
For examp
ple, to strobe
e for 100ms withw backlight at 50% poweer, type “strrobe 100 5500” and preessEnter. If brightnessbsettting is not required, “strrobe 100” i s sufficient.
save will save currentt settings (only brightness at this momeent) to eeproom.
status will print currrent power sttatus of Backllight and DispplayPort.
versionn will print cu
urrent firmwaare version annd build date..
Other commmands mighht be added inn the future update.
uThis information is current as of 201
14/03/21.

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