BUF18830EVM Software
21
SBOU103A – April 2011 – Revised May 2016
Copyright © 2011–2016, Texas Instruments Incorporated
BUF18830EVM User Guide and Software Tutorial
2.3.7
Load From File Button
The BUF18830EVM software is also able to load data saved from previous evaluations. A saved register
configuration can be loaded into the BUF18830 using the
Load From File
button, as shown in
The program remembers where you saved the last register configuration. Simply select the desired
configuration and press
Open
.
Figure 22. Load From File Button and Window
2.3.8
Changing the DAC/V
COM
Analog Voltage
The voltage of any of the DAC or V
COM
channels can be adjusted in several ways. First, you can change
the voltage by entering the desired voltage directly in the voltage text box. In order to be able to manually
type the voltage into the text box, you must first click on the cell to be edited. Click a second time and the
cell turns from blue to black, and allows the user to type the updated voltage in the cell. The hexadecimal
DAC codes can be entered in the
Code
column in the same manner.
Another method of changing the voltage of a DAC or V
COM
channel is through the use of the slider on the
main software window. There is only a single slider that is used for all channels. In order to use the slider
to adjust the voltage of a particular channel, that channel must first be selected. To select a channel, click
on either the channel number, voltage, or code of a particular channel. The entire channel row highlights
in blue to show the user that the channel is selected. Adjusting the slider bar then only updates the
highlighted channel.
The final method to change DAC/V
COM
voltages is through the
±1 Code
and
±5 Code
buttons on the main
software window. These buttons allow for fine and coarse adjustments, respectively, to the highlighted
channel, giving the user the ability to quickly step the channel output up or down as needed without
having to manually enter the changes in the
Code
column.
