[Sipeed LicheeRV 86 Panel Review] 2- Board Resource Introduction and Data Collection

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[Sipeed LicheeRV 86 Panel Review] 2- Board Resource Introduction and Data Collection [Copy link]

 

Board Resource Introduction

Lichee RV-86 is a smart home central control development kit that is compatible with Lichee RV-Nezha CM.

Supports WAFT (WebAssembly Framework For Things) development environment. WAFT is a high-performance application development framework for AIoT.

Basic characteristics of the board

Adapt to Lichee RV core board ( Sipeed LicheeRV-Nezha CM ), Allwinner D1 main chip, 512MB DDR3 memory

Supports Linux system and WAFT development environment

Equipped with a 4-inch capacitive touch screen with a resolution of 480*480 , supporting human-computer interaction applications

Onboard 100M Ethernet and Wi-Fi+BT modules , supporting Ethernet and wireless network connections

Onboard DC-DC circuit, supports external 9~12V power input

Onboard speaker amplifier and two-way digital microphones , supporting audio playback and dual-microphone noise reduction

Onboard GPIO + power supply expansion pin header, application scenarios can be expanded through GPIO

Onboard USB to UART and USB-HOST circuits for easy serial port debugging and external USB device connection

Reserved RTC circuit

Hardware and software overview

By looking at the "Sipeed Lichee RV 86 Panel Specification", you can learn about the board's hardware and software related information:

Hardware Overview

Software Overview

Working conditions

Function Introduction

Let's take a look at the location and function of each interface, module, and chip on the board :

1 : RGB+TP interface dedicated to 4-inch touch screen (IPS display, resolution 480x480, touch chip FT6336G)

2 : MIPI+TP interface compatible with Nezha 8-inch screen

3 : 5V+UART expansion interface

4 : 9~12V power interface

5 : FPC IO expansion interface (reserved function)

6 : Power indicator

7 : Speaker interface

8 : GPIO pin header

9 : Digital microphone

10 : USB to UART debugging interface (Type-C)

11 : Reset button

12 : USB-HOST expansion interface (Type-C)

13 : IPEX first generation antenna interface

14 : Core board slot

15 : Ethernet status indicator

16 : Ethernet expansion interface

17 : Network port transformer (HR641680E)

18 : Ethernet interface (RTL8201)

19 : WIFI module (XR829, WIFI+BT)

20 : Power chip (AP6502)

21 : DDR3 memory (SK Hynix H5TQ4G63AFR-RDC)

22 : Main control chip (allwinner D1)

23 : Micro SD card slot

24 : USB port on the core board (Type-C)

25 : FEL (firmware exchange launch) button on the core board

D1 chip introduction

The core board of the board is a D1-H chip from Allwinner Technology.

D1-H is Allwinner Technology's first chip based on the RISC-V instruction set . It integrates Alibaba's Pingtouge 64-bit C906 core , supports RVV, 1GHz+ main frequency, and can support Linux, RTOS and other systems. It also supports up to 4K H.265/H.264 decoding, has a built-in HiFi4 DSP, and can be connected to up to 2GB DDR3. It can be applied to smart cities, smart cars, smart commercial displays, smart home appliances, smart offices, scientific research and education and other fields.

The block diagram of the chip's internal structure is as follows, and you can see that the resources are very rich:

Board information collection

The study and use of the board cannot be separated from the collection of information. The relevant resource websites for this board are:

Sipeed official website: https://www.sipeed.com

Sipeed forum: https://bbs.sipeed.com

OCC Forum/Waft UI Development Information: https://occ.t-head.cn

Allwinner official SDk: < https://open.allwinnertech.com/ >

Allwinner official development materials: < https://d1.docs.aw-ol.com >

Summarize

This article introduces the basic features and software and hardware module functions of Lichee RV-86, as well as the collection and organization of board-related resources.

freebsder

It took a lot of hard work to organize the text and pictures.