RockpiS/Core

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ROCK Pi S Core

SoM Introduction

ROCK Pi S Core is the SoM based on ROCK Pi S with CPU/RAM/Storage/Wireless in a small stamp footprint at 35mm x 35mm, it supports the following features:

• Quad-core ARM Cortex-A35 CPU
• Full implementation of the ARM architecture v8-A instruction set
• ARM Neon Advanced SIMD (single instruction, multiple data) support for accelerated media and signal processing computation
• ARMv8 Cryptography Extensions
• Include VFP v3 hardware to support single and double-precision operations
• TrustZone technology support
• 256MB/512MB RAM option
• 128M to 1GB storage option
• 802.11 a/b/g/n wifi Bluetooth 2.1/4.2(RTL8723DS)
• support eMMC up to 128GB
• support uSD card up to 128GB
• 120 PIN available

PINOUT

Check the SoM full 120 PINOUT definition.

Evaluation Carrier Board1: Shajin

Features

Model	Shajin
Power supply	DC 12V adapter or USB Type-C adapter
Storage media	eMMC / SD Nand / TF card
Ethernet	100M Bit Ethernet
Key	Reset key x1 Maskrom key x1 ADC Key x1
LORA Module	optional
DBT50Q Module	optional
MIC Array
RS232	x1
RS485	x1
RTC	x1
Touch Screen	5.0inch LCD
USB	USB 2.0 Type-A Host x2 USB 3.0 Type-C OTG x1

Download

• Shajin Carrier Board design files (Altium Designer Projects)
• Shajin Carrier Board schematic (.pdf)
• Shajin Carrier Board 2D files (.dxf)
• Shajin Carrier Board Components Reference (.pdf)

Shajin Hardware Revisions

V1.0

The first version of Shajin Carrier Board.

Getting Started

Essential Things

• ROCK Pi S Core and Shajin board

• One of the Storage media below:
  • MicroSD card, larger than 8GB.
  • SD Nand
  • eMMC

• One of the power supply methods
  • DC 12V Adapter
  • PC/Laptop which has USB ports
    • Shajin can be powered from the PC/Laptop USB ports directly

• USB Type-C to Type-A cable
  • For both power and USB communication(adb/fastboot) with HOST PC.

Get System Image

Shajin Debian Buster

Flash System Image

There are three kinds of storage media used as system storage. They are TF card, eMMC and SD Nand.

And choose one way to flash system image.

• Method of installation on MicroSD.
• Method of installation on SD NAND/eMMC.

Access from the Host PC/Laptop

Option 1: ADB

Check Using adb.

Option 2: Serial Console

Shajin Buster system uses ttyS3 as serial console. And the baud rate of serial console is 115200(8N1).

Soc RK3308 Uart3 pins are directly layout to "UART to RS485 IC" or "UART to RS232 IC".

To use serial console, you need to select which way to go, RS485 port or RS232 port.

When using RS485 port, the wire connection is shown as below.

Shajin Board	<--->	USB to RS485 Board
RS485_A	<--->	A
RS485_B	<--->	B

When using RS232 port, the wire connection is shown as below.

Shajin Board	<--->	USB to RS232 Board
RS232_RX	<--->	RS232_TX
RS232_TX	<--->	RS232_RX
GND	<--->	GND

As for the serial tool setting, check Serial Console.

LED

There is one Power LED on ROCK Pi S Core board. It is always on when the board is given power.