beautypg.com

9data security, 1 introduction, 2 set remember – Matrix Orbital LCD2041 User Manual

Page 41

background image

9

Data Security

9.1

Introduction

Ensuring that your LCD2041 display’s exactly what you want it to can be the difference between a

projects success and failure. This is why we incorporate features such as Data Lock into the LCD2041 With
this new feature you now are in control over of how and when settings will be changed so there is no need
to worry about the module acting exactly like you expected it to because all the settings may be locked and
remembered for the next power up.

9.2

Set Remember

Syntax

Hexadecimal

0xFE 0x93 [switch]

Decimal

254 147 [switch]

Parameters

Parameter

Length

Description

switch

1

0: Do not remember, 1: Remember

Description

This command allows you to switch the remember function on and off.
To use the remember function, set remember to on, then set all of the
settings that you wish to save, settings that are listed as ’Remember:
Yes’ support being saved into the non-volatile memory. After you have
set all of the commands that you wish to save, you may then cycle the
power and check the display settings to ensure that all the settings have
been saved. If you wish to use remember again after cycling the power,
you must set it to on again.

NOTES

• Writing to non-volatile memory is time consuming and slows down the operation of

the display.

• Non-volatile memory has a ‘write limit’ and may only be changed approximately

100,000 times.

Remembered

No

Default

Do not remember

Matrix Orbital

LCD2041

37