一、Introduction

Product introduction

HDMI-TO-MIPI-CSI Drive Board

The HDMI-TO-MIPI-CSI drive board uses the video bridge chip RK628D,
which can realize the conversion requirements of HDMI video signal to
MIPI CSI signal, greatly simplify the hardware design, improve the
hardware design efficiency, and save the overall cost. It can be
applied to intelligent micro projector, intelligent display screen,
video acquisition and conversion products.


Shipping list(Only for references)


Specifications

Size: 43.5mm * 30 mm

HDMI RX Interface:  Compliant with HDMI 1.4/HDMI 2.0  Supports 8/10bit
per component video format  Supports rgb888/yuv420  Supports Max
resolution 4K@60fps (yuv420)

MIPI CSI Interface:  Compliant with MIPI DPHY V1.2  Support Format:
YUV422  Main Support Resolution:3840x2160@30fps,1920x1080@60fps,1280x
720@60fps,720x480@60fps

LINEOUT Interface:  Same audio output: 3.5mm headphone interface  * 1,
3P-2mm * 1, 2P-1.25mm * 1

Interface Definition


Line Out:  Output the analog signal processed by the sound card to the
audio device through this interface.

二、Usage

See the

Compile the firmware

 section for the embedded board support list.

Hardware connection

RK3566/RK3568/RK3588/RK3588S Series Embedded Board


RK3399 Series Embedded Board


Note:1. Operate this step when the drive board and development board
are in power off state to avoid burning them. 2.If the RK3399 series
embedded board has two MIPI CSI interfaces, it is connected to MIPI
CSI0 by default.

Android uses HDMI-IN

HdmiIn2 application is built in the system by default, as shown in the
figure:


Click to enter the application, the interface will display HDMI-IN
video, and the audio will be output from LineOut on the driver board.
The application supports the maximum output resolution 3840x2160@30fps
.

Linux uses HDMI-IN

Run the following script on the device:

   #!/bin/bash

   export DISPLAY=:0
   export XAUTHORITY=/home/firefly/.Xauthority
   export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/lib/aarch64-linux-gnu/gstreamer-1.0
   WIDTH=1920
   HEIGHT=1080
   SINK=xvimagesink

   gst-launch-1.0 v4l2src device=/dev/video0 ! video/x-raw,format=NV12,width=${WIDTH},height=${HEIGHT} ! videoconvert ! $SINK &

   wait

三、Firmware and Resource download

Related documents and firmware download, see the official website

Resource Download

四、Tutorial

Flash firmware

Compile the firmware

RK3566 platform

RK3568 platform

RK3588 platform

RK3588S platform