10
Troubleshooting
Power
For your MOP
Display to function correctly, appropriate power must be applied, often as indicated by
the backlight illuminating or a darkening of the character spaces. Please refer to the power diagram
below and reference all voltages to the specifications provided.
Figure 9: Single Supply Configuration
Figure 10: Dual Supply Configuration
Display
If your display is powered successfully, the backlight or contrast should be evident. A lack of text could
be the result of a high contrast voltage, lower V0. Also, ensure the expected DDRAM addresses are
shown by moving the display to the home position.
Communication
When communication of either text or commands is interrupted, check all data and control pins for
continuity. Ensure the display has been initialized correctly before sending information using the
appropriate initialization algorithm. For 4-bit mode ensure D4-D7 are used. Finally, slow down
communication and refer to timing diagrams and specifications for proper control flow.
Precautions
?
Do
not
make extra holes on the display, modify its
shape, or change the components.
?
Avoid applying excessive electrical shock to the module.
?
Do
not
drop, bend, twist, or disassemble the display.
?
Avoid operation
outside
absolute maximum ratings.
?
Solder
only to the I/O terminals
provided.
?
Store
in an anti-static container within a
clean environment.
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相关代理商/技术参数
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