Description
Paranoia allows you to lock the module from displaying information, as
well as enables the protection of the ?lesystem and module se
ttings.
Each bit corresponds corresponds to a different lock level,
while
sending a zero will unlock your display as the following tables explains:
Bit
Data Lock Level
Description
0-2
Reserved
Should be left 0
3
Communication
Speed Lock
When this bit is set (1) the
Baud Rate and I2C Slave
address are locked
4
Setting Lock
When this bit is set (1)
the display settings such
as backlight, contrast and
GPO settings are locked.
(Internal EEPROM)
5
Filesystem Lock
When this bit is set (1)
the external EEPROM is
locked, this has the same
effect as the File System
Jumper
6
Command Lock
When this bit is set (1) all
commands but commands
202/203 are locked. (cmd
lock)
7
Display Lock
When this bit is set (1) the
module is locked from dis-
playing any new informa-
tion. (text lock)
NOTES
?
Sending a new data lock level will override the previous data
lock level.
?
Data lock levels may be combined.
Remembered Always
Default 0
Examples
Hex
Dec
Binary
Description
0x00
0
0
Unlock
0x50
80
01010000
Setting and Command Lock
Matrix Orbital GLK12232-25
49