oLCDWZ Object

Description:

A Hardware Object that outputs characters to a Wirz SLI-OEM LCD Controller Module.

Operation:

When the oLCD Object's Value property is set to the ASCII value of a character, that character is sent out the I/O Lines specified by the IOLine property in such a way that a Wirz LCD controller module will display the character.

Setting the String property to a string of characters will sequentially send each character in the string to the LCD module.

Invoking the Locate method will cause the LCD's cursor to be positioned on the LCD's screen at the specified X-Y coordinates. Invoking the Clear method will cause the LCD module to clear its screen of any characters.

Storage size & Availability:

The following table lists the size and availability of the oLCDWZ Object and its variations:

Object		Size	Version
	oLCDWZ	5 Bytes	B.1.0

Properties:

The following table lists the Properties of the oLCDWZ Object:

Property

Description

Address

Returns a pointer to the address of the oLCDWZ Object instance.

Data-Type: Address, Read-Only

Data-Range: 0 - 127

Baud

A value that specifies the baud rate to use.

Data-Type: Nibble

Data-Range: 0 - 7

Default Value: 2

The following table lists the values of the Baud Property:

Baud	Constant	Description
4	cv19200	The serial data communicates at 19200 Baud. (Default)
0, 1, 2, 3, 5, 6, 7		Reserved

IOLine

A value that specifies the physical I/O Line to use for serial communications.

Data-Type: Byte

Data-Range: 0 - 31

Operate

A value that specifies whether or not the data is updated.

Data-Type: Bit, Flag

Data-Range: 0 - 1

String

The Value property represented as a string.

Data-Type: String

Data-Range: 0 - 255

Value

The value of any ASCII or control character.

Data-Type: Byte, Default

Data-Range: 0 - 255

Methods:

Methods	Description
Clear	Clears the LCD screen.
Locate	Sets the cursor to the specified location. The Locate command uses two arguments; Row & Column, both of which are 0 based. Example: X.Locate(0,1) ' will locate cursor at 1st row, 2nd column. Example: X.Locate(1,9) ' will locate cursor at 2nd row, 10th column.

Example:

In the following example, the oLCDWZ Object is used.

'This program prints "Testing"
'to a Wirz SLI-OEM serial LCD

Dim A As New oLCDWZ 

Sub Main()
  A.IOLine = 16
  A.Clear
  A.String = "Testing" 
End Sub

Connections:

The oLCDWZ uses one I/O line. This I/O line is connected to the data line of the Wirz SLI-OEM LCD Controller Module.

See Also:

oLCD - An Object that uses a LCD module.
oLCDSE - An Object that outputs characters to a Scott Edwards LCD Module.
oVideoIC - An Object that overlays text on a video signal using an Intuitive Circuits OSD232 On-Screen Display Character Overlay Board.