DSS Colorbar Test

Table of Contents

• Introduction
• Supported Combinations
• Steps to Run the Example
• See Also
• Sample Output

Introduction

This example tests the inbuilt colorbar generation of overlay manager of DSS. DSS has two overlay managers OVR1 and OVR2. Each overlay manager supports a simple internal color bar insertion in each display output path to enable testing of display output interface without using the frame buffer data from the memory.

The colors are: White, Yellow, Cyan, Green, Magenta, Red, Blue, Black. When internal colorbar is enabled, the overlay output data is replaced by the predefined ARGB48 color bar data .The example configures Video Port and Overlay managers using DSS driver IOCTLS. Since the colorbar is internal to DSS, there is no Video pipeline configuration required. The example configures Overlay Manager OVR1 to enable internal colorbar enable feature.

The example configures OLDI LVDS panel for Video Port 1. Please refer SK-LCD1 for panel details. The Video port timinng parameters are configured with respect to SK-LCD1. Timing parameters can be configured using sysconfig option.

Supported Combinations

Parameter	Value
CPU + OS	a53ss0-0 freertos
Toolchain	arm.gnu.aarch64-none
Board	am62x-sk, am62x-sk-lp, am62x-sip-sk
Example folder	examples/drivers/dss/dss_colorbar_test

Steps to Run the Example

• When using CCS projects to build, import the CCS project for the required combination and build it using the CCS project menu (see Using SDK with CCS Projects).
• When using makefiles to build, note the required combination and build using make command (see Using SDK with Makefiles)
• Launch a CCS debug session and run the executable, see CCS Launch, Load and Run

Attention

As the wake-up R5 is the device manager, it needs to be started by the SBL. So it can not be loaded through CCS. It should be flashed and booted through SBL.

• Refer Flash an example application for flashing the application.

See Also

DSS

Sample Output

Sciserver Testapp Built On: Dec  7 2023 14:12:00
Sciserver Version: v2023.11.0.0REL.MCUSDK.MM.NN.PP.bb
RM_PM_HAL Version: vMM.NN.PP
Starting Sciserver..... PASSED
DispApp_init() - DONE !!!
DSS colorbar application started...
Display create complete!!
Starting display ... !!!
Display in progress ... DO NOT HALT !!!
Display delete complete!!
DispApp_deInit() - DONE !!!
DSS colorbar test Passed!!

Display Output