Software Control
4
SLAU454A – July 2012 – Revised April 2016
Copyright © 2012–2016, Texas Instruments Incorporated
TSW4806EVM
2.2.1
LMK04800 Main Tab
After starting the GUI, the LMK04800 Main tab is selected by default and the display looks as shown in
.
Figure 2. LMK04800 Main Tab Window
If the GUI connects to the board properly, the USB Status indicator turns green. If the indicator is not
bright green (as shown in
), check that the board is powered up and the USB cable is installed.
Press the
Reset USB
button a few times. If this still does not establish the connection, cycle power to the
board and host PC. If this still does not correct the problem, make sure the USB drivers were installed
properly using the Device Manager tool on the PC.
(1)
The EEPROM Read only works properly with the Windows 7 OS by opening the GUI using the
Run as Administrator
option.
Table 2. Main Window Description
Section
Description
Reset USB
Issues a software reset to the FTDI USB controller.
Send All
Sends all current displayed GUI values to the LMK internal registers.
Save
Saves all of the current displayed GUI values to a file.
Load
Opens a browser for loading a custom register file into the GUI. The values are not loaded into
the LMK until the
Send All
button is clicked.
Read All
Currently not used.
EXIT
Closes the GUI
EEPROM
(1)
Writes and reads the GUI register values to the on-board EEPROM. The writable address range
is from 8 to 15. The readable range is from 0 to 15. Addresses 0-7 are factory programmed and
read only.
LMK04800 Registers
Displays the address and data values of the LMK.