Texas Instruments BOOST-LP5569EVM User manual

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User's Guide
SNVU564A–July 2017–Revised August 2017
Using the BOOST-LP5569EVM Evaluation Module
The Texas Instruments LP5569 evaluation module (EVM) helps designers evaluate the operation and
performance of the LP5569 nine-LED driver. The LP5569 device is an RGB LED driver that can
individually control up to 9 LEDs. The driver has 12-bit PWM and 8-bit current control of each low-side
LED current sink. The current sinks can be individually controlled through the I2C interface.
The EVM contains one LP5569 device (see Table 1).
Table 1. Device and Package Configurations
REFERENCE ID DEVICE PACKAGE
U1 LP5569 WQFN (24)
Contents
1 Setup .......................................................................................................................... 3
1.1 Input/Output Connector Description.............................................................................. 3
1.2 I2C Address Selection .............................................................................................. 3
1.3 LED Type and Supply Selection.................................................................................. 3
1.4 RGB LED Operation................................................................................................ 4
1.5 White LED Operation............................................................................................... 5
1.6 External LED Operation............................................................................................ 6
1.7 EVM and MSP-EXP432P401R LaunchPad Development Kit Setup ........................................ 6
1.8 Minimum Procedure for Turning on the LEDs .................................................................. 8
2 EVM Software................................................................................................................ 9
2.1 EVM Software Installation ......................................................................................... 9
2.2 XDS110 Driver Installation....................................................................................... 14
2.3 EVM Software Launch............................................................................................ 16
2.4 Update Firmware for MSP-EXP432P401R LaunchPad Development Kit ................................. 16
2.5 MSP432 Firmware Running...................................................................................... 18
2.6 Main Menu ......................................................................................................... 18
2.7 Status Bar .......................................................................................................... 18
2.8 Information View................................................................................................... 19
2.9 Register View...................................................................................................... 19
2.10 Control Menu....................................................................................................... 21
2.11 Control View – Program Tab..................................................................................... 24
2.12 Control View – Code Memory Tab.............................................................................. 25
2.13 Control View – Source Edit Tab................................................................................. 25
2.14 Control View – Log Tab .......................................................................................... 27
2.15 Console............................................................................................................. 27
3 LP5569 Programming ..................................................................................................... 29
3.1 Programming Flow Chart ........................................................................................ 29
3.2 Reserved Keywords............................................................................................... 30
3.3 Commenting ....................................................................................................... 30
3.4 Directives........................................................................................................... 31
3.5 Labels............................................................................................................... 31
3.6 Instruction Set Details ............................................................................................ 32
3.7 Programming Examples.......................................................................................... 34
4 Board Layout................................................................................................................ 38

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5 Schematic ................................................................................................................... 41
6 Bill of Materials (BOM)..................................................................................................... 42
Trademarks
LaunchPad is a trademark of Texas Instruments.
Microsoft, Windows are registered trademarks of Microsoft Corporation.
All other trademarks are the property of their respective owners.

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1 Setup
This section describes the jumpers and connectors on the EVM as well and how to properly connect, set
up, and use the LP5569EVM. The input voltage range for VIN is 2.5 V to 5.5 V. The input voltage range for
V1P8 is 1.65 V to 1.95 V.
1.1 Input/Output Connector Description
• ADDR_SEL – is provided to configure the I2C slave address.
• DISVIO – is provided to disable the onboard 1.8-V LDO when supplying an external 1.8-V supply.
• I18 – is provided to measure the V1P8 supply current through a 1-Ωsense resistor.
• I2C – is provided to monitor the I2C SDA and SCL signals.
• IIN – is provided to measure the VIN supply current through a 1-Ωsense resistor.
• IOUT – is provided to measure the VOUT supply current. The jumper must be installed for normal
operation.
• J1 and J2 are the TI LaunchPad connector interface.
• JLED – is provided to connect an external LED to the LP5569EVM evaluation module.
• JIS – is provided to measure the LED current through a 1-Ωsense resistor.
• JL1 – is provided to select either a white or RGB LED on LED0, LED1, and LED2 and on the LED
supply.
• JL2 – is provided to select either a white or RGB LED on LED3, LED4, and LED5 and on the LED
supply.
• JL3 – is provided to select either a white or RGB LED on LED6, LED7, and LED8 and on the LED
supply.
• VINSEL – is provided to select 3.3 V either from the MSP432 LaunchPad™ development kit or from an
external supply connected to JLED.
1.2 I2C Address Selection
The LP5569 I2C slave address is set according to the jumper installed on ADDR_SEL.
Figure 1. ADDR_SEL Configuration
1.3 LED Type and Supply Selection
The connectors JL1, JL2, and JL3 are used to select the LED type and supply rail.
Figure 2. JL1, JL2, JL3 Configuration

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Figure 3. LP5569EVM
1.4 RGB LED Operation
For proper operation of the LP5569 device, ADDR_SEL, IOUT, JL1, JL2, JL3, JLED, and VINSEL must be
properly configured. The recommended settings, using shunts, are as follows:
• ADDR_SEL: Shunt installed between pins 1 and 2 only.
• IOUT: Shunt installed.

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• JL1: Shunts installed between pins 3 and 5 and pins 4 and 6 (RGB LED selected).
• JL2: Shunts installed between pins 3 and 5 and pins 4 and 6 (RGB LED selected).
• JL3: Shunts installed between pins 3 and 5 and pins 4 and 6 (RGB LED selected).
• JLED: Shunts installed between pins 1 and 2, 5 and 6, 11 and 12, 13 and 14, 15 and 16, 17 and 18,
19 and 20, 21 and 22, 23 and 24, 25 and 26, 27 and 28.
In this configuration, the green and blue LEDs are connected to the charge pump output with the red
LEDs connected to VIN.
Figure 4. RGB Configuration Jumper Settings
1.5 White LED Operation
For proper operation of the LP5569 device, ADDR_SEL, IOUT, JL1, JL2, JL3, JLED, and VINSEL must be
properly configured. The recommended settings, using shunts, are as follows:
• ADDR_SEL: Shunt installed between pins 1 and 2 only.
• IOUT: Shunt installed.
• JL1: Shunt installed between pins 1 and 3 (white LED selected).
• JL2: Shunt installed between pins 1 and 3 (white LED selected).
• JL3: Shunt installed between pins 1 and 3 (white LED selected).
• JLED: Shunts installed between pins 1 and 2, 5 and 6, 11 and 12, 13 and 14, 15 and 16, 17 and 18,
19 and 20, 21 and 22, 23 and 24, 25 and 26, 27 and 28.
In this configuration, the white LEDs are connected to the charge pump output.

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Figure 5. White LED Jumper Settings
1.6 External LED Operation
For proper operation of the LP5569 device, ADDR_SEL, IOUT, JL1, JL2, JL3, JLED, and VINSEL must be
properly configured. The recommended settings, using shunts, are as follows:
• ADDR_SEL: Shunt installed between pins 1 and 2 only.
• IOUT: Shunt installed.
• JL1: No shunt installed.
• JL2: No shunt installed.
• JL3: No shunt installed.
• JLED: No shunt installed, external LED cathodes connected to JLED pins 11, 13, 15, 17, 19, 21, 23,
25, and 27 with LED anodes connected to either JLED pin 1 (VOUT) or pin 3 (VIN).
In this configuration, the LEDs are located on a separate board connected to JLED. Multiple LP5569-
EVMs can be stacked vertically to control up to 72 LEDs (8 LP5569EVMs) using a single MSP432
LaunchPad developmant kit.
1.7 EVM and MSP-EXP432P401R LaunchPad Development Kit Setup
The MSP-EXP432P401R LaunchPad jumpers should be set as shown in Figure 6.

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Figure 6. MSP432 Jumper Settings
Connect the MSP432 LaunchPad development kit and EVM (BOOSTXL-LP5569) as shown in Figure 7.

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Figure 7. Connect Evaluation Board and LaunchPad Development Kit
1.8 Minimum Procedure for Turning on the LEDs
The minimum procedure for turning on the LEDs is as follows:
1. Verify jumper pin settings on the MSP-EXP432P401R LaunchPad development kit and the
LP5569EVM board.
2. Connect the MSP-EXP432P401R LaunchPad to the LP5569EVM board.
3. If it is the first time to use the MSP432, install an XDS110 driver. See the MSP432P401R SimpleLink™
Microcontroller LaunchPad™ Development Kit (MSP ‑ EXP432P401R) User's Guide for more-detailed
information regarding the XDS110 driver.
4. Verify the XDS110 Class Application/User UART and XDS110 Class Auxiliary Data Port on the
Microsoft®Windows®Device Manager.
5. Install and run the EVM software.
6. If the LaunchPad development kit is a new one or was used another purpose, the EVM software asks
to update the firmware. Update the firmware through the top menu, File →Update Firmware. The EVM
software restarts after updating the firmware.

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7. Make sure the Hardware Connected message appears on the status bar.
8. Select the Control Page Menu and Manual tab.
9. Set the appropriate I2C slave address.
10. Click the EN button to high. (Red color means high.)
11. Set the chip_en bit and click Yes to read all registers.
12. Set cp_mode to 1× mode.
13. Change the pwm[0….8] register values and click the Update button.
2 EVM Software
EVM software is available for download from the Product Folder. The LP5569EVM is connected via USB
to the computer and controlled with special EVM software (Windows 7 and 10 compatible). A
SimpleLink™ MSP432P401R LaunchPad™ Development Kit is used with the EVM to provide I2C
communication and external PWM, EN, and INT pin control with the LP5569 device via USB.
Figure 8. MSP432 LaunchPad Developmant Kit (MSP-EXP432P401R) and LP5569 EVM
2.1 EVM Software Installation
Execute the setup_LP5569_EVM.msi file. If it is compressed in zip file format, unzip first in any location,
and then click the Run button even though the Windows security warning message appears. Click the
Next button.

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Figure 9. Setting Up the LP5569 EVM
Check to accept the agreement and click the Next button to proceed with the installation.

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Figure 10. License Agreement
Click Next button. By default, the program is installed in the C:\Program Files (x86)\Texas
Instruments\LP5569 folder and Texas Instruments\LP5569EVM in the start menu.

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Figure 11. Installation Directory Dialog
Click the Next button to proceed with the installation.

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Figure 12. Installation Progress
Check to create a desktop icon for the program and check to launch the EVM software after installation.

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Figure 13. LP5569 Setup Wizard
2.2 XDS110 Driver Installation
The EVM software uses XDS110, a back-channel UART-over-USB connection, so it should be installed
properly.
Connect the PC and MSP-EXP432P401R LaunchPad development kit using a USB cable and open the
Device Manager of Windows (Control Panel→Device Manager). Verify that XDS110 Class
Application/User UART and XDS110 Class Auxiliary Data Port appear.

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Figure 14. Verify XDS110 Driver
If they are shown as USB Serial Device (COMx), the driver must be updated.
Figure 15. Driver Update
The XDS100 driver can be downloaded from XDS Emulation Software Package. If the EVM software is
already installed in your computer, the driver software can be saved in the folder where the EVM software
is already installed. The default EVM software installation folder is C:\Program Files (x86)\Texas
Instruments\LP5569 EVM.

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Figure 16. Driver Installation
2.3 EVM Software Launch
Run C:\Program Files (x86)\Texas Instruments\ LP5569 EVM\LP5569_EVM.exe if the default installation
folder was not modified in the EVM software installation step or click the desktop icon, LP5569_EVM.
Figure 17. Desktop Icon
2.4 Update Firmware for MSP-EXP432P401R LaunchPad Development Kit
The MSP-EXP432P401R LaunchPad development kit can be used for many purposes. Therefore, if the
LaunchPad development kit is a new one or was used for another purpose, the EVM software asks to
update the firmware through a popup window.

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Figure 18. MSP432 Update Firmware
Firmware can be updated through the top menu, FILE →FW Update.
Figure 19. Firmware Update Menu
A firmware-download-status popup is displayed after finishing the firmware update.
Figure 20. Firmware Download Status
The EVM software is restarted after updating the firmware.

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2.5 MSP432 Firmware Running
There are three LEDs on the MSP-EXP432P401R LaunchPad development kit, and if the firmware is
working properly, the LED color is usually blue when there is no transaction between the firmware and the
EVM software.
Figure 21. MSP432 LED
2.6 Main Menu
There are three available views on the main menu: Info,Register, and Control. The components in each
view are synchronized so any changes performed in one view of the menu are automatically updated in
the others.
Figure 22. Main Menu Icons
2.7 Status Bar
The status bar at the bottom of the EVM software screen provides information regarding hardware
connection status, I2C communication status, and software versions. Once the EVM software is connected
to the hardware and starts to communicate with the firmware of the MSP432 LaunchPad development kit,
the light blue sign Hardware Connected is displayed.
Figure 23. Status Bar (Hardware Connected)

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2.8 Information View
The information view is shown when the EVM software is started or the Info icon is clicked, and it provides
brief information about the LP5569 device. For more-detailed information, see LP5569 Nine-Channel I2C
RGB LED Driver With Engine Control and Charge Pump.
Figure 24. Information View
2.9 Register View
The register view is shown when the Register icon is clicked, and it provides the register values, field
values, and descriptions.

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Figure 25. Register View (Collapsed)
Clicking on a bold text entry in the RegisterName column expands the register group to reveal all registers
contained within the RegisterName group. Any RegisterName that is expanded can be collapsed by
clicking on the RegisterName a second time.
Figure 26. Register View (Expanded)