SSD1859 Solomon Systech, SSD1859 Datasheet - Page 46

• Manufacturer Part Number: SSD1859
• Description: 128 x 80 STN LCD Segment / Common 4 G/S Drive
• Manufacturer: Solomon Systech

OTP Example program
Find the OTP offset:
1.
2.
3.
4.
5.
6.
OTP programming:
7.
8.
9.
10. COMMAND(0X82)
11. COMMAND(0X83)
12. Wait at least 2 seconds for programming wait time
13. Hardware reset by sending an active low reset pulse to
Verify the result:
14. After OTP programming, procedure 2 to 5 are repeated for inspection of the contrast on
Solomon Systech
Hardware reset by sending an active low reset pulse to
COMMAND(0XAB)
COMMAND(0X2F)
COMMAND(0X48)
COMMAND(0X40)
COMMAND(0X55)
COMMAND(0X81)
COMMAND(0X2D)
COMMAND(0X24)
\\ Set target display contents
COMMAND(0XB0)
COMMAND(0x00)
COMMAND(0X10)
DATA(…)
COMMAND(0XAF)
OTP offset calculation… target OTP offset value is +3
Hardware reset by sending an active low reset pulse to
COMMAND(0XAB)
Connect an external VOUT (16V-18V)
COMMAND(0XF3)
the panel
\\Enable oscillator
\\ turn on the internal voltage booster, internal regulator and
output op-amp buffer; Select booster level
\\ Set Duty ratio
\\ 64Mux
\\ Set Biasing ratio (1/9 BIAS)
\\ Set target gain and contrast.
\\ contrast = 45
\\ gain = 5.1
\\ set page address
\\ set lower nibble column address
\\ set higher nibble column address
\\ write target content to GDDRAM
\\ Set Display On
\\ Enable Oscillator
\\ Set OTP offset value to +3 (0011)
\\ 0001 X
\\ Send the OTP programming command
3
X
2
X
1
X
0
, where X
Dec 2003
3
X
2
X
RES
RES
RES
1
X
0
is the OTP offset value
pin
pin
pin
P 46/48 Rev 1.0
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SSD1859