Renesas RZ/N1S User manual

Quick Start Guide

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Jan.31.2020

RZ/N1S Group

CONNECT IT! ETHERNET RZ/N1S-DB

Introduction

RZ/N1 is a family of scalable ARM® based industrial Ethernet switches. Due to the integrated performant

ARM® Cortex®-A7 CPU, they are ideal choice for building products such as Programmable Logic Controllers

(PLC), complex remote-IO slaves, industrial switches, gateways or operator terminals.

RZ/N1 Family consists of three devices, out of which the RZ/N1S, is an industrial ethernet communication

System on Chip with a 3 or 5-ports, depending on the respective chosen package 324BGA/196BGA.

This guide shall assist you to quickly start with your evaluation of the RZ/N1S device on the related Solution

Kit board(s) and the Solution Kit software and documentation. It represents a short guide for the first time users

with the instructions for the first startup of the board.

In addition to this document, please be aware of the extensive documentation on RZ/N1 devices, evaluation

boards and software that you may find in the Solution Kit Documentation directory.

The Solution Kit boards can solely be used for evaluation purposes. It is not allowed to use the boards for

commercial purposes.

List of reference documents

Document name

User’s Manual: System Introduction, Multiplexing, Electrical and Mechanical Information

User’s Manual: System Control and Peripheral

User’s Manual: Peripherals

User’s Manual: R-IN Engine and Ethernet Peripherals

User’s Manual: Generic Open Abstraction Layer

RZ/N1S Development Board Schematic

RZ/N1S Development Board Setup Notes

RZ/N1 U-Boot User Manual

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List of Abbreviations and Acronyms

Abbreviation

Full Form

API

Application Programming Interface

BSP

Board Support Package

CANopen Bus Protocol

DLR

Device Level Ring Protocol

EtherCAT / ECAT

EtherCAT Network Protocol

EtherNet/IP / EIP

EtherNet/IP Network Protocol

EPL

Ethernet POWERLINK Network Protocol

PNIO

PROFINET IO Protocol

PROFINET

Process Field Network Protocol

lwIP

Lightweight IP Protocol

GOAL

Generic OS Abstraction Layer, Communication Framework on RZ/N1x

LLDP

Link Layer Discovery Protocol

NVM

Non-volatile memory

Operating System

Real-Time

API

Application Programming Interface

Hardware

Software

HSR

High-Availability Seamless Redundancy Protocol

PRP

Parallel Redundancy Protocol

IBIS

I/O Buffer Information Specification for pin signal simulation

EtherCAT is registered trademark and patented technology, licensed by Beckhoff Automation GmbH, Germany.

Sercos is a registered trademark of Sercos International e.V.

Ethernet POWERLINK is the registered trademark of Ethernet POWERLINK Standardization Group (EPSG).

CAN(Controller Area Network)：An automotive network specification developed by Robert Bosch GmbH of Germany

All registered trademarks or trademarks are the property of their respective owners.

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1. Overview

The following chapters will help you setup the hardware and software environment and run a sample

application on your RZ/N1L evaluation board.

•The Solution Kit is being actively updated and new versions of it are iteratively released

•Current version of Solution Kit is providing a snapshot of the latest software and documentation

versions at the release time

The CONNECT IT! ETHERNET RZ/N1S Solution Kit is based on the RZ/N1S, a 3/5-port, industrial Ethernet

communication SoC in a 324BGA / 196BGA package. RZ/N1D features two independent blocks integrated in

a single package –a communication block based on the proven multi-protocol R-IN Engine, as well as an

application block and a variety of peripherals. In contrast to the RZ/N1D, RZ/N1S includes only a single ARM®

Cortex®-A7 CPU without an external DDR interface, but with 6MB internal SRAM. Please refer to the RZ/N1S

device documentation for further differences. Also, the RZ/N1S Solution Kit contains everything you need for

fast evaluation and rapid prototyping of multiple industrial Ethernet protocols.

The RZ/N1S Solution Kit contains

•RZ/N1S CPU Development Board

•IAR I-jet Lite debugger (incl. 20pin flat ribbon and USB-micro/A cable)

•USB Cable Micro / Type-A

•DVD RZ/N1x-DB Solution Kit for all RZ/N1x devices / boards

Additionally, one can order the RZ/N1-EB Expansion Board separately, that provides the user with the

possibility to use an expanded range of functionalities and RZ/N1S interfaces. RZ/N1-EB kit contains:

•RZ/N1-EB Expansion Board

•Power Supply 24V/750mA

•Power Supply Primary Adapters Euro/UK/JPN-US

The expansion board has no stand-alone capability and requires an RZ/N1D or RZ/N1S CPU board.

RZ/N1S

APPLICATION

ThreadX

6MB SRAM

QSPI/NAND

CAN/UART/I2C

SDIO/USB

HD DisplayController

Arm®Cortex®–A7

ETHERNET COMMUNICATION

uItron + HWRTOS

Multi-Protocol

Industrial Ethernet

Arm®Cortex®–M3 5 Port Real-Time

EthernetSwitch

GOAL

C2C

Communication

324BGA(15x15mm, 0.8mm pitch)

196BGA(12x12mm, 0.8mm pitch)

Figure 1-1: RZ/N1S Functional and HW overview

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2. Hardware Setup

2.1 CPU Demo Board Setup

To get started quickly with the board, please identify the connectors on the RZ/N1S-DB CPU Board.

Figure 2-1: Board connectors overview

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1. Switches and Jumpers

Please take care that the following switches are set.

Table 1: RZ/N1S GPIO Multiplexer DIP-Switch SW5

Number

SW ON (low)

SW OFF (high)

Default

Setting

RMII/MII

LCD

OFF

CAT/S3

PMOD

ON*

MSEBI

Mixed

OFF

RMII2 / MDIO 3

QSPI2-Memory

OFF

USB 1x Host 1x Device

USB 2 x Host

ARM Debug**

FTDI Debug

Segger Debugger

I-Jet Debugger

OFF

Not used

OFF

*PHY reset available only in PMOD configuration

**ARM serial debug feature is not supported with the RZ/N1S demo board from the solution kit package

Table 2: RZ/N1S Boot Config DIP-Switch SW4

Switch

SW ON (white bar)

SW OFF

Default

Setting

SW3

JTAG Mode

ARM Coresight Mode

OFF

SW10

Boot from NAND

Boot from QSPI/USB

OFF

SW11

LCD pull up

LCD pull down

SW12

LCD pull up

LCD pull down

SW1

RXCLK4 from PHY

RXCLK4 from GPIO61

SW7

RXCLK5 from PHY

RXCLK5 from GPIO61

Please refer to the schematics

Table 3: Ethernet RX Clock Selection

SW1:

RX_CLK4 Setting

Switch

On Setting (white bar) (default)

Off Setting

SW1

RXCLK4 from Phy

RXCLK4 from GPIO61

SW7:

RX_CLK5 Setting

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Switch

On Setting (white bar) (default)

Off Setting

SW7

RXCLK5 from Phy

RXCLK5 from GPIO61

Table 4: Jumper Settings RZ/N1S-DB

USB Power

Jumper

On Setting (default)

Off Setting

CN14

Power from USB

Power from expansion board

SRESET from Debugger to RZ/N1D

Jumper

On Setting (default)

Off Setting

CN10

RZ/N1D is connected with the

SRESET from the Debugger

Debugger cannot reset the CPU

MRESETout

Jumper

On Setting

Off Setting (default)

CN9

MRESETOUT is connected to

the Debugger

Debugger cannot detect any

internal CPU reset

USB Host/Device Mode

Jumper

On Setting

Off Setting (default)

CN2

OTG mode ID

Peri Mode ID

Table 5: Push buttons

SW2:

Boot Mode Select

In case SW3 (2) has selected QSPI it is possible to boot from USB instead of the QSPI if SW2 is

pressed down during RESET.

Switch

On Setting

Off Setting

SW2

Boot from USB

Boot from QSPI

Table 6: Reset and NMI Button

SW8

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Power On Clear

Switch

On Setting

Off Setting

SW8

POR Reset

Release POR Reset

SW9:

Soft Reset

Switch

On Setting

Off Setting

SW4

Soft Reset

Release Soft Reset

SW6:

CM3 NMI

Switch

On Setting

Off Setting

SW6

Generate CM3 NMI

Release CM3 NMI

For more information please refer to the hardware setup notes (RZ_N1S_DB_Board_Setup_Notes) and

schematics (RZ_N1S_DB_Board_Schematic) in respective board documentation folder in Solution Kit.

1. JTAG Debug Connector

This connection is required for software development purposes, to be able to run and debug the

software on the target. The IAR Debugger cable has one unused key pin, therefore pin 7 of the CN7

connector should be cut or bent, as shown below. After this step, you can attach your I-jet debugger

to the board via JTAG cable.

Figure 2-2: Connector CN10 with removed pin 7

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Figure 2-3: I-Jet Debugger connection

2. Power connector and serial-over-USB

The board is powered via USB connector CN6. Please make sure that the jumper CN14 is ON.

Please connect the board to your PC via USB cable to the connector CN6. The same interface is

used for serial UART communication with the board, so if you have a windows PC, after connecting

the board via USB, you should be able to see a new device registered with 4 new USB Serial COM

ports. You may use any of the terminal emulator on your PC to open a serial port connection to the

board. The board uses the 3rd port for UART output at 115200,8,n,1. On Linux PCs, if you have no

other serial-over-USB devices attached, this is accessed using /dev/ttyUSB2, provided you do not

have any other USB devices attached.

Figure 2-4: Power connector and serial over USB

If the board is not recognized by Windows, please install the FTDI driver that you may find under

…\YCONNECT-IT-RZN_V1.x\Tools\FTDI.

If the required 3.3V are supplied to RZ/N1S, the green LED24 will be lit and stay ON.

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You can perform a soft-reset of the board by pressing SW9.

3. Ethernet Interface

The Ethernet connection to the PC or a PLC can be prepared using one of the two RJ-45 connectors

CN5 or CN1, as shown in Figure 2-5: Ethernet RJ-45 connectorsFigure 2-5. For running the

EtherCAT sample program you can use any of the two connectors. There are two PHY Micrel chips

connected to these RJ-45 connectors.

Figure 2-5: Ethernet RJ-45 connectors

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2.2 Expansion Board Setup

If you are using the expansion board together with your RZ/N1S CPU Board, here you may find some setup

notes for it. For more information refer to the board documentation in the Solution Kit. The expansion board

comes with an external power supply to drive the expansion board and the RZ/N1x CPU board plugged onto

the connectors J1 and J2. Please note the position of the power supply selection jumper below and ensure

that the 12…24V position is chosen. This board expands the RZ/N1S CPU boards with 3 Gbit PHY ports, an

SD-Card slot, a USB Host as well as CAN, RS232, RS485, PMODs, LCD display interface with integrated

touch screen, etc.

Figure 2-6: RZ/N1-EB Expansion Board Overview

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