Start Page

Different device variants in the LP581x family are selected from the Start Page. The default setting of EVM is for LP5813, so to begin evaluation, select the LP5813 tab then click the EXPLORE button to begin evaluation. See Figure 4-5.

After clicking EXPLORE button, the GUI helps navigate users to the Hardware Set-up page. Click FINISH button when the hardware has been set properly. See Figure 4-6.

Figure 3-5 Start Page

Figure 3-6 Hardware Setup Page

Drive Mode Page

In the Drive Mode page, users can configure the scan mode for LP5813/LP5812, and the jumper setting for the scan mode configuration is shown on the preview window. See Figure 4-8.

Figure 3-8 Drive Mode Page

Mode Select Page

Set the operation mode for every LED pixel in the LED mode select page. See the details in this page in Figure 4-9.

1. Chip Enable button: Click this button to enable device at the beginning of evaluation.
2. Update Command: Click this button to update all the Device Configuration Register values.
3. LED Select: Before setting operation mode for LEDs, one or multiple LEDs (Shift + select for multiple LED selections) must be selected first.
4. Mode Selection: This part includes LED enable/disable, LED operation mode (manual/auto), PWM dimming scale (linear/exponential), PWM phase align (forward/middle/backward).
5. Device Configuration: Click this button to navigate to the Device configuration page. See Figure 4-10.

Figure 3-9 Mode Select Page

Figure 3-10 Device Configuration Page

After all the device configurations have been configured, click NEXT button to navigate to Manual Mode Configuration page.

Manual Mode Configuration Page

Set the analog dimming (dot current) and PWM dimming (manual PWM) value for every LED which is configure to manual mode. See Figure 4-11.

Figure 3-11 Manual Mode Configuration Page

After the manual mode LED brightness are configured, click NEXT button to navigate to Auto Mode Configuration page.

Auto Mode Configuration Page

This page is used to configure the animation engine of each device. One animation engine pattern is defined as shown in Figure 4-12. Three animation engine units (AEU) and two animation pause units (APU) compose the animation engine pattern. Users can also see more details about the animation engine in data sheet.

Figure 3-12 Animation Engine Pattern

All the parameters in the animation engine related register have random value when power up the device, so configure all the parameters before running the animation engine. Figure 4-13 shows the Auto Mode Configuration page.

Figure 3-13 Auto Mode Configuration Page

Users can preview the LED animation pattern by enabling the Preview Mode and click the SIMULATE button. See Figure 4-14.

Figure 3-14 Preview Mode

The dimming curve is also shown under the configuration page. See Figure 4-15.

Figure 3-15 Dimming Curve Preview

After making sure all the configurations have been set properly, click the START button in the AEU configuration section. The device starts to generate the animation effect desired.

Fault Detection

The LP5813/LP5812 continually detects the status for every LED dot. Once an open or short failure is detected, the fault status is also be monitored on the GUI. Clicking the fault summary at the right-top of the GUI shows the summary for all fault status (see Figure 3-16). The Clear Short LED and Clear open LED buttons are used to clear related fault flags when the failures are removed.

To have precise detection results, the PWM must be set above 25.

Figure 3-16 LED Fault Report