Hatteland Display 26 inch - HD 26T21 MMC (Widescreen) - Manual (Page 43)

43 Appendix
IND100077-124
Notes
Glass Display Control™ (GDC) LED & Button operations:
Prior to the procedure below, it is required you understand the terms and have the nesseccary knowledge how to
interpret the functions in order to successfully use them as described below.
To be able to change GDC buttons and LED functions for the Panel Computers (Maritime Multi Computer - MMC)
Series X product range, the VCOM (Virtual COM port visible in the Operating System (OS) device list as "COM x :",
where x is OS/configuration dependent number; such as 1, 3 or other) needs to be installed and accessible from
within your system.
The following commands referenced below are only available from GDC Firmware* version "130225R1" and up.
To determine your unit's GDC Firmware version, send the command "SWK" via VCOM.
Excerpt from "Message Commands and Queries (CMD) Contents" section in this manual:
0x53 0x57 0x50 "SWK" Glass Display Control™ (GDC) software version Query R
*Reference Engineering Change Notification (ECN): http://www.hatteland-display.com/mails/05_2013_ecn.html
Note: It is important to read the GDC LED register (step 1) before you change the bit for your function (Step 3)
Step 1 - Read register GDC LEDs:
- Send Query command: "RBY"
- Data (HEX): 0x93, 0x00
Step 2 - Read register GDC buttons:
- Send Query Command: "RBY"
- Data (HEX): 0x93, 0x07
Step 3 Address only the bit for the function you need to change as illustrated in tables below.
Step 3A - Disable / Enable GDC LEDs:
- Command: "WBY"
- Data (HEX): 0x92, 0x00, 0x YY
Where " YY " is one of the folllowing bits (in a byte):
BIT 7 BIT 6 BIT 5 BIT 4 BIT 3 BIT 2 BIT 1 BIT 0
Reserved
ON / OFF
Text
Brilliance
Text
Reserved Reserved
Brilliance < * >
LED symbols
Power ON/OFF
LED Symbol
All off
0
0 = Off
1 = On
0 = Off
1 = On
0
1 = Normal
(reserved)
0 = Reserved
0 = Off
1 = On
0 = Off
1 = On
1 = active
0 = Reserved
Step 3B - Disable / Enable GDC Buttons:
- Command: "WBY"
- Data (HEX): 0x92,0x07,0x ZZ
Where " ZZ " is one of the folllowing bits (in a byte):
BIT 7 BIT 6 BIT 5 BIT 4 BIT 3 BIT 2 BIT 1 BIT 0
Reserved Reserved Reserved Reserved
Power ON / OFF
Button
Outdoor Mode* Reserved
Brilliance
Button
0 0 0 0
0 = Enable
1 = Disable
0 = Enable
1 = Disable
0
0 = Enable
1 = Disable
*Outdoor mode (Command "MCC - OSD Outdoor Mode") adds 5 seconds to the brilliance buttons before they react.