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This
LCD driver supports a two or four line by 16-character Hitachi HD44780 based
LCD (or functional equivalent). The
driver displays a signed 16 bit value with a units
string and associated label. The label
string is displayed on the upper line with the signed value and units string displayed on the line beneath it. The value can be displayed as a decimal or
hexadecimal number.
A two line display
will support one instance of this driver.
A four line display will support two instances of this driver, one using
rows 0 and 1 and the other using rows 2 and 3.
When using multiple LCD drivers within a project, the position
properties must be selected such that driver display regions do not conflict.
Hardware Interface: Control of the LCD driver
chip uses seven I/O pins. These pins
must be on the same PSoC port. The
driver uses a 4-bit communications interface.
Software Interface: The driver display value is provided as a 16-bit
signed value.
User Configurable Properties:
·
Row Location: Selects which lines of the
LCD display the data value and associated bar graph. The displayed data
occupies two lines of the display. The
location can be specified as Rows 0-
·
Label: Text string associated with the value. Limited to 16
characters. An underscore character (_) will be replaced by a space
in the displayed text.
·
Units: Text string
indicating the units for the displayed value. Limited to eight characters. An underscore
character (_) will be replaced by a space in the displayed text.
·
Base: Selects the base or radix to be used to display the
value: decimal or hexadecimal.
Non-Configurable Properties:
·
BarGraph : Disable
This driver has no specifications.