SNVU932A March   2025  – August 2025 LP5814 , LP5814I , LP5815

 

  1.   1
  2.   Description
  3.   Get Started
  4.   Features
  5.   Applications
  6.   6
  7. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
    3. 1.3 Device Information
  8. 2Hardware
    1. 2.1 Setup
    2. 2.2 Jumper Information
  9. 3Software
    1. 3.1 Software Description
    2. 3.2 Graphical User Interface (GUI) Installation
    3. 3.3 Graphical User Interface (GUI) Guidance
      1. 3.3.1 Hardware Connection
      2. 3.3.2 Start Page
      3. 3.3.3 Hardware Setup Page
      4. 3.3.4 Home Page
      5. 3.3.5 LED Control Page
        1. 3.3.5.1 Turn ON LED in Manual Mode
        2. 3.3.5.2 Turn On LED in Autonomous Mode
      6. 3.3.6 Enter and Exit Shutdown Mode
      7. 3.3.7 Read Flags
  10. 4Hardware Design Files
    1. 4.1 Schematics
    2. 4.2 PCB Layouts
    3. 4.3 Bill of Materials (BOM)
  11. 5Additional Information
    1. 5.1 Trademarks
  12. 6Revision History

3.3.5.2 Turn On LED in Autonomous Mode

This section shows the steps to turn on the red LED (OUT2) and white LED (OUT3) LEDs in autonomous animation mode with the patterns as shown in Table 3-1 and .

Table 3-1 Design Parameters
LED PATTERNS
Red LED (OUT2)

Animation Mode, Blinking with 5Hz Frequency
White LED (OUT3) Animation Mode, Breathing with 1s Exponential Ramping Up and 1s Exponential Ramping Down

LP5814DRLEVM, LP5815DRLEVM, LP5814YCHEVM and LP5815YCHEVM Blinking Pattern

Figure 3-13 Blinking Pattern

LP5814DRLEVM, LP5815DRLEVM, LP5814YCHEVM and LP5815YCHEVM Breathing Pattern

Figure 3-14 Breathing Pattern

  1. Enable chip through clicking Chip Enabled button as shown in Figure 3-15.

  2. Select the red LED (OUT2) and white LED (OUT3) to do the configuration through clicking the red LED and white LED with Shift keyboard button pushed.

  3. Enable the selected red LED and white LED through selecting the Enable item from the Enable LED pulldown menu.

    Set the selected red LED and white LED in autonomous animation mode through selecting the Auto item from the Select Mode pulldown menu.

    Enable exponential PWM dimming for the selected red LED and white LED through selecting the Exponential item from the PWM Dimming Scale pulldown menu.


    LP5814DRLEVM, LP5815DRLEVM, LP5814YCHEVM and LP5815YCHEVM Chip Enable and Auto Mode Set

    Figure 3-15 Chip Enable and Auto Mode Set
  4. Click the Device Configuration button on the right side of the LED Control page to open the maximum current configure panel as shown in Figure 3-16. Set the MC (Maximum Current) for the selected red LED and white LED through selecting the 25.5mA or 51mA item from the Maximum Current pulldown menu.
  5. Click UPDATE button on the top right corner to make the configurations in above step 3 and step 4 take effect.
  6. Set DC (Dot Current) value for the selected blue LED and green LED through entering the data in the Dot Current control as shown in Figure 3-16.

    LP5814DRLEVM, LP5815DRLEVM, LP5814YCHEVM and LP5815YCHEVM Current Set and Update Command Send in Auto Mode

    Figure 3-16 Current Set and Update Command Send in Auto Mode

  7. Click the Auto Mode Configuration tab to open the patterns setting panel as shown in Figure 3-17.

    Select engine 0 for selected red LED (OUT2) through selecting the Engine0 is selected item from the OUT2 Engine Channel pulldown menu.

    Select engine 1 for selected white LED (OUT3) through selecting the Engine1 is selected item from the OUT3 Engine Channel pulldown menu


    LP5814DRLEVM, LP5815DRLEVM, LP5814YCHEVM and LP5815YCHEVM Engine Select

    Figure 3-17 Engine Select

  8. Enable engine 0 order 0 through clicking the toggle button besides the Order 0 under Engine 0 control panel. Select pattern 0 for engine 0 order 0 through selecting the Pattern0 is selected item from the pulldown menu under the Order 0 as shown in Figure 3-18.

    Enable engine 1 order 0 through clicking the toggle button besides the Order 0 under Engine 1 control panel. Select pattern 1 for engine 1 order 0 through selecting the Pattern1 is selected item from the pulldown menu under the Order 0 as shown in Figure 3-18.


    LP5814DRLEVM, LP5815DRLEVM, LP5814YCHEVM and LP5815YCHEVM Engine Order Enable

    Figure 3-18 Engine Order Enable

  9. Set the parameters of pattern 0 as the value shown in the Table 3-2 table.

    Set the parameters of pattern 1 as the value shown in the Table 3-3 table.

    Enter the values under the PATTERN 0 and PATTERN 1 control panels as shown in Figure 3-19.

    Table 3-2 PATTERN0 5Hz Blinking Parameters
    Address Register Set Value Description
    1Ch PATTERN0_PAUSE_TIME 00h No pause time
    1Dh PATTERN0_REPEAT_TIME 0Fh Infinite repeat times
    1Eh PATTERN0_PWM0 FFh PATTERN0_PWM0 = FFh
    1Fh PATTERN0_PWM1 FFh PATTERN0_PWM1 = FFh
    20h PATTERN0_PWM2 00h PATTERN0_PWM2 = 0
    21h PATTERN0_PWM3 00h PATTERN0_PWM3 = 0
    22h PATTERN0_PWM4 00h PATTERN0_PWM4 = 0
    23h PATTERN0_SLOPER_TIME1 02h PATTERN0_SLOPER_T1 = 0, PATTERN0_SLOPER_T0 = 0.1s
    24h PATTERN0_SLOPER_TIME2 02h PATTERN0_SLOPER_T3 = 0, PATTERN0_SLOPER_T2 = 0.1s
    Table 3-3 PATTERN1 Breathing Parameters
    Address Register Set Value Description
    25h PATTERN1_PAUSE_TIME 00h No pause time
    26h PATTERN1_REPEAT_TIME 0Fh Infinite repeat times
    27h PATTERN1_PWM0 00h PATTERN1_PWM0 = 0
    28h PATTERN1_PWM1 FFh PATTERN1_PWM1 = FFh
    29h PATTERN1_PWM2 FFh PATTERN1_PWM2 = FFh
    2Ah PATTERN1_PWM3 00h PATTERN1_PWM3 = 0
    2Bh PATTERN1_PWM4 00h PATTERN1_PWM4 = 0
    2Ch PATTERN1_SLOPER_TIME1 4Bh PATTERN1_SLOPER_T1 = 0.2s, PATTERN1_SLOPER_T0 = 1s
    2Dh PATTERN1_SLOPER_TIME2 4Bh PATTERN1_SLOPER_T3 = 0.2s, PATTERN1_SLOPER_T2 = 1s


    LP5814DRLEVM, LP5815DRLEVM, LP5814YCHEVM and LP5815YCHEVM Pattern Parameters Set

    Figure 3-19 Pattern Parameters Set
  10. Finally, send start command to start the configured patterns running on the red LED (OUT2) and white LED (OUT3) through clicking the START button as shown in Figure 3-20.

    The selected red LED starts blinking in 5Hz frequency and selected white LED starts breathing up and down after sending start command.


    LP5814DRLEVM, LP5815DRLEVM, LP5814YCHEVM and LP5815YCHEVM Start Command Send

    Figure 3-20 Start Command Send