Texas Instruments LP5523 Programmable 9-Output LED Driver Evaluation Module LP5523EVM/NOPB LP5523EVM/NOPB Datenbogen
Produktcode
LP5523EVM/NOPB
CONNECTING EVALUATION BOARD TO COMPUTER
30187001
FIGURE 4. LP5523 Evaluation Software Control Panel
1.
Check that the jumpers on the evaluation board are on wanted positions.
2.
Connect the evaluation board to your computer using a USB cable.
3.
If this is first time you use the evaluation board install FTDI's VCP drivers.
4.
Start the evaluation software LP5523.exe.
5.
Click Init USB button.
6.
Reset the LP5523 circuit by clicking the Reset button on upper right corner of the window. In the message box that appears,
click OK to confirm the register reading.
click OK to confirm the register reading.
7.
shows the
evaluation software user interface (Control Panel).
You should see USB OK message on the status bar (shown in the lower part of the window). If the USB communication is not
working correctly, shut down the evaluation software and unplug the USB cable. Plug in the USB cable again and reset the eval-
uation board by pressing the on board reset button (S1). Wait about 5 seconds and repeat steps 4 to 6 above. If the evaluation
software is still unable to find evaluation board, you'll need to change com port settings as described in chapter INSTALLING FTDI
DRIVERS.
working correctly, shut down the evaluation software and unplug the USB cable. Plug in the USB cable again and reset the eval-
uation board by pressing the on board reset button (S1). Wait about 5 seconds and repeat steps 4 to 6 above. If the evaluation
software is still unable to find evaluation board, you'll need to change com port settings as described in chapter INSTALLING FTDI
DRIVERS.
CONTROLLING EVALUATION BOARD FROM PC
The evaluation software provides read-write control over the registers within the LP5523. Bits can be set from a logical ‘1’ to a
logical ‘0’ or vice versa by a mouse click and for some settings there is also a slider control provided. The evaluation software
window is divided into two panels: control panel and indicator panel (see
logical ‘0’ or vice versa by a mouse click and for some settings there is also a slider control provided. The evaluation software
window is divided into two panels: control panel and indicator panel (see
). The leftmost panel is the indicator panel, and
it shows the status of the LP5523 registers (excluding the program memory).
The rightmost panel is the control panel — it is used to change the status of the registers, to program the device, or to debug the
program depending on the selected view. The view is selected by the tabs on the top of the window. The Manual view appears
when the evaluation software starts. The Manual view is used to run the device "manually," i.e,. the program execution engines
are not used. It contains also some LP5523 basic settings, like serial bus address selection. In the next chapter the user is guided
The rightmost panel is the control panel — it is used to change the status of the registers, to program the device, or to debug the
program depending on the selected view. The view is selected by the tabs on the top of the window. The Manual view appears
when the evaluation software starts. The Manual view is used to run the device "manually," i.e,. the program execution engines
are not used. It contains also some LP5523 basic settings, like serial bus address selection. In the next chapter the user is guided
AN-2227 - LP5523 Evaluation Kit
Copyright © 1999-2012, Texas Instruments Incorporated
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