Datasheet
EA DOGM128-6
Page 6
ELECTRONIC ASSEMBLY reserves
the right to change specifications
without prior notice. Printing and
typographical errors reserved.
INITIALISATION EXAMPLE
Internal contrast voltage generator (single supply +3.0V / +3.3V)
INITIALISATION EXAMPLE
External contrast voltage (dual power supply)
Initialisation example for single supply +3.3V (bottom view)
Command
A0 D7 D6 D5 D4 D3 D2 D1 D0 Hex
Remark
(2) Display start line set
0 0 1 0 0 0 0 0 0
$40 Display start line 0
(8) ADC set
0 1 0 1 0 0 0 0 1
$A1 ADC reverse *)
(15) Common output mode select
0 1 1 0 0 0 0 0 0
$C0 Normal COM0~COM63
(9) Display normal/reverse
0 1 0 1 0 0 1 1 0
$A6 Display normal
(11) LCD bias set
0 1 0 1 0 0 0 1 0
$A2 Set bias 1/9 (Duty 1/65)
(16) Power control set
0 0 0 1 0 1 1 1 1
$2F Booster, Regulator and Follower on
(20) Booster ratio set
0
1 1 1 1 1 0 0 0
$F8
Set internal Booster to 4x
0 0 0 0 0 0 0 0
$00
(17) V0 voltage regulator set
0 0 0 1 0 0 1 1 1
$27
Contrast set
(18) Electronic volume mode set
0
1 0 0 0 0 0 0 1
$81
0 0 0 1 0 1 1 0
$16
(19) Static indicator set
0
1 0 1 0 1 1 0 0
$AC
No indicator
0 0 0 0 0 0 0 0
$00
(1) Display ON/OFF
0 1 0 1 0 1 1 1 1
$AF Display on
*) Make sure that for 6:00 viewing direction ADC has to be set to „reverse“ (mirrored layout) !
Orientation for 6:00 (Bottom View)
Initialisation example for dual power supply (bottom view)
Command A0 D7 D6 D5 D4 D3 D2 D1 D0 Hex Remark
(2) Display start line set 0 0 1 0 0 0 0 0 0 $40 Display start line 0
(8) ADC set 0 1 0 1 0 0 0 0 1 $A1 ADC reverse *)
(15) Common output mode select 0 1 1 0 0 0 0 0 0 $C0 Normal COM0~COM63
(9) Display normal/reverse
0 1 0 1 0 0 1 1 0
$A6 Display normal
(11) LCD bias set 0 1 0 1 0 0 0 1 0 $A2 Set bias 1/9 (Duty 1/65)
(16) Power control set 0 0 0 1 0 1 0 1 1 $2B
Booster off, Regulator, Follower
on
(17) V0 voltage regulator set 0 0 0 1 0 0 1 1 1 $27
Contrast set
(18) Electronic volume mode set 0
1 0 0 0 0 0 0 1 $81
0 0 0 1 0 1 1 0 $16
(19) Static indicator set 0
1 0 1 0 1 1 0 0 $AC
No indicator
0 0 0 0 0 0 0 0 $00
(1) Display ON/OFF 0 1 0 1 0 1 1 1 1 $AF Display on
*) Make sure that for 6:00 viewing direction ADC has to be set to „reverse“ (mirrored layout) !