Matrix-orbital DD-DB1 LCD/VFD Dev Board Bedienungsanleitung PDF herunterladen (Seite 34)

8. Data Security

8.1.Set

Remember

Dec

Hex

254 147

FE 93

Switch

Allows changes to specific settings to be saved to the display memory. Writing to memory can be slow and each change

consumes 1 write of approximately 100,000 available. Set and save functions are always remembered. Off is default.

Switch 1 byte, 1 for on or 0 for off

8.2.Data Lock

Dec

Hex

254 202 245 160

FE CA F5 A0

Level

Temporarily locks certain aspects of the display to ensure no inadvertent changes are made. A new level overrides the

old, and levels can be combined. Default is 0.

Level 1 byte, each bit representing a level, see table below

Unlock Reserved Reserved Reserved Setting Reserved Command Display

0 1 2 3 4 5 6 7

Unlock Unlocks all setting locks

Reserved Place holders only, should be 0

Setting Locks settings such as backlight and contrast

Command Locks all commands

Display Locks entire display, no new information can be displayed

8.3.Set and Save

Data Lock

Dec

Hex

254 203 245 160

FE CB F5 A0

Level

Permanently locks certain aspects of the display to ensure no inadvertent changes are made. A new level overrides the

old, and levels can be combined. Default is 0.

Level 1 byte, see data lock table

1 2 ... 29 30 31 32 33 34 35 36 37 38 39 ... 46 47

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Matrix-orbital DD-DB1 LCD/VFD Dev Board Bedienungsanleitung Seite 34