Microchip Technology SAMA5D27 SOM1 Kit1 Manual de usuario

SAMA5D27 SOM1 Kit1

SAMA5D27 SOM1 Kit1 User's Guide

Scope

This user's guide provides detailed information on the overall design of the SAMA5D27 SOM1 Kit1 and

describes how to use the kit.

The kit is the evaluation platform for the SAMA5D27 SIP (System-In-Package) and SOM (System-On-

Module), and comprises:

• a baseboard

• a SAMA5D27 SOM soldered on the baseboard

• a SAMA5D27 SIP soldered on the SOM

• a USB cable

See the figure below.

Figure 1. SAMA5D27 SOM1 Kit1 Overview

SIP

(System-In-Package)

SOM (System-On-Module)

Baseboard

Table of Contents

Scope.............................................................................................................................. 1

1. Introduction................................................................................................................3

1.1. Document Layout......................................................................................................................... 3

1.2. Reference Documents..................................................................................................................3

2. Product Overview...................................................................................................... 4

2.1. Kit Contents..................................................................................................................................4

2.2. Features....................................................................................................................................... 4

2.3. Specifications............................................................................................................................... 5

2.4. Power Sources............................................................................................................................. 5

3. Baseboard Components............................................................................................7

3.1. Baseboard Overview.................................................................................................................... 7

3.2. Function Blocks.......................................................................................................................... 10

3.3. External Interfaces..................................................................................................................... 27

3.4. Debugging Capabilities.............................................................................................................. 33

3.5. PIO Usage on Expansion Connectors........................................................................................39

4. Installation and Operation........................................................................................46

4.1. System and Configuration Requirements...................................................................................46

4.2. Baseboard Setup........................................................................................................................46

5. Errata.......................................................................................................................47

5.1. Incorrect NRST and WKUP Push Button Markings....................................................................47

6. Appendix: Schematics and Layouts........................................................................ 48

7. Revision History.......................................................................................................58

The Microchip Web Site................................................................................................ 59

Customer Change Notification Service..........................................................................59

Customer Support......................................................................................................... 59

Microchip Devices Code Protection Feature................................................................. 59

Legal Notice...................................................................................................................60

Trademarks................................................................................................................... 60

Quality Management System Certified by DNV.............................................................61

Worldwide Sales and Service........................................................................................62

SAMA5D27 SOM1 Kit1

1. Introduction

1.1 Document Layout

The document is organized as follows:

•Introduction

•Product Overview – Important information about the kit

•Board Components – Specifications of the kit and high-level description of the major components

and interfaces

•Installation and Operation – Instructions on how to get started with the kit

•Errata

•Appendix: Schematics and Layouts – Kit schematics and layout diagrams

1.2 Reference Documents

The following Microchip documents are available and recommended as supplemental reference

resources:

Type Document Title Available Ref. No./Product

Data Sheet SAMA5D2 www.microchip.com/SAMA5D2 DS60001476

Data Sheet SAMA5D2 System-On-Module

(SOM)

www.microchip.com/ATSAMA5D27-

SOM1 DS60001521

Data Sheet SAMA5D2 System-In-Package

(SIP) www.microchip.com/SAMA5D2 SIP DS60001484

SAMA5D27 SOM1 Kit1

Introduction

2. Product Overview

2.1 Kit Contents

The kit includes the following:

• One baseboard with soldered SOM

• One USB cable

2.2 Features

The kit comprises a baseboard with a soldered SAMA5D27 SOM1 module. The module features a

SAMA5D27-D1G-CU SIP embedding a 1-Gbit DDR2 SDRAM. The SOM offers a reliable and cost-

effective embedded platform for building end products, as well as a small form factor, complemented by

many connectivity interfaces. The SOM is a fully-featured industrially-certified single board computer

designed for integration into customer applications.

The SOM module is a purpose-built small footprint hardware platform equipped with a wide array of high-

speed connectivity engineered to support various applications such as IoT endpoints, wearables,

appliances or industrial equipment.

The SOM integrates a 1-Gbit DDR2 SDRAM, a QSPI memory and a 10/100 Mbps Ethernet controller.

128 GPIO pins are provided by the SOM for general use in the system. All GPIO pins are independent

and can be configured as inputs or outputs, with or without pull-up/pull-down resistors.

The baseboard features a wide range of peripherals, as well as a user interface and expansion options,

including two mikroBUS™ click interface headers to support over 300 MikroElektronika click boards™ and

one Pmod™ interface.

Table 2-1. Baseboard Features

Characteristics Specifications Components

Memory One QSPI Flash (unmounted) Tested with Macronix MX25L25673GM2I-08G

Crypto One CryptoAuthentication™ device ATECC608

USB Com Port One USB host

One USB device

One USB HSIC

Connector type C

Connector type microAB

2-pin header (not populated)

Ethernet One Ethernet interface RJ45 connector

CAN One CAN interface ATA6561

Video One LCD RGB 24-bit interface

One ISC 12-bit interface

50-pin FPC connector

2x15 male connector

Storage One standard SD card interface

One microSD card interface

With 3.3V/1.8V power switch

–

SAMA5D27 SOM1 Kit1

Product Overview

...........continued

Characteristics Specifications Components

Debug port One J-Link-OB and J-Link-CDC

One JTAG interface

Microchip SAM3U micro-controller with

embedded J-Link firmware

–

Board Monitor One RGB (Red, Green, Blue) LED

Four push button switches

–

Power ON, Reset, Wakeup, User Free

Expansion One tamper connector

One Pmod connector

Two mikroBUS interfaces

10-pin male connector

6-pin female connector

2x8-pin female connector

Board Supply From USB A and/or USB J-Link-OB 5 VDC

Power saving SuperCap –

Refer to www.microchip.com for:

• Sample code and technical support

• Linux® software and demos

2.3 Specifications

Table 2-2. Kit Specifications

Characteristic Specification

Ordering code ATSAMA5D27-SOM1-EK1

Board supply voltage USB-powered

Temperature Operating: 0°C to +70°C

Storage: –40°C to +85°C

Relative humidity 0 to 90% (non-condensing)

Baseboard dimensions 135 × 90 × 20 mm

RoHS status Compliant

2.4 Power Sources

Two options are available to power up the baseboard:

• USB powering through the USB Micro-AB connector (J17 - default configuration)

• Powering through the USB Micro-AB connector on the J-Link-OB Embedded Debugger interface

(J10)

The two power sources can coexist. A priority mechanism manages the automatic switching between the

two. The priority source is J-Link (J10), the secondary source is the USB port (J17).

SAMA5D27 SOM1 Kit1

Product Overview

Table 2-3. Electrical Characteristics

Electrical Parameter Value

Input voltage 5VCC

Maximum input voltage 6VCC

Maximum 3.3VDC current available 1.2A

I/O voltage 3.3V only

SAMA5D27 SOM1 Kit1

Product Overview

3. Baseboard Components

This section covers the specifications of the SAMA5D27 SOM1 Kit1 baseboard and provides a high-level

description of the baseboard's major components and interfaces. This document is not intended to

provide a detailed documentation about the processor or about any other component used on the

baseboard. It is expected that the user will refer to the appropriate documents of these devices to access

detailed information.

3.1 Baseboard Overview

The fully-featured SAMA5D27 SOM1 Kit1 baseboard integrates multiple peripherals and interface

connectors, as shown in the figure below.

Figure 3-1. SAMA5D27 SOM1 Kit1 Baseboard Overview

The following picture illustrates the kit block diagram.

SAMA5D27 SOM1 Kit1

Baseboard Components

Figure 3-2. SAMA5D27 SOM1 Kit1 Block Diagram

PCB JTAG

Interface

SPI

Flash

System Supplies POWER

REGULATOR

GPIO, SHDN

UART

MPU JTAG

Interface

JTAG

LCD

ISC

TWI

FLEXCOM

RJ45

ETH

CAN

mikroBUS

Interface

mikroBUS

Interface

GPIO

USB A&B

SDHC0

SDHC1

RGB

LEDs

USB

Detection

DEBUG

Interface

Push

Button

Reset, Wkup

DisBoot, User

Pmod

Interface

PIOBU Connector

ISC Connector

3v3, 1v8

Power

Cap VDDBU

JTAG

SWITCH

USB-A

Connector

USB-B

Connector

uSD

Connector

SD Card

Connector

GPIO

USB

Power Switch

3.3V, 1.8V

FPC Connector

POWER

MONITOR SAMA5D27-SOM1

DDR2, QSPI, EEPROM,

ETHERNET PHY, GPIOs

JLINK-OB

JLINK-CDC

Dual

LED

Function Select

QSPI

GPIO Function Select

Power

Switch

CRYPTO

ECC608

Tri

State

JLINK Power

5V/3.3V

USB

Connector

3.1.1 Default Jumper Settings

The figure below shows the default jumper settings. Jumpers in red are configuration items and current

measurement points. The following table describes the functionality of the jumpers.

Figure 3-3. Default Jumper Settings

Table 3-1. Jumper Settings

Jumper Default Function

J1 Closed VDD_MAIN_5V current measurement

SAMA5D27 SOM1 Kit1

Baseboard Components

...........continued

Jumper Default Function

J2 Closed VDD_3V3 SOM current measurement

J4 Closed VDDBU current measurement

J7 Open Enables J-Link-OB (closed=disable)

J8 Open

Erases SAM3U firmware code (closed=erase at power-up)

WARNING

Must remain open. If closed, the SAM3U contents are erased and J-Link

functionality is discarded.

J9 Open Enables JTAG-CDC (closed=disable)

J13 Open Disables SOM boot memories (closed=disable)

J22 Closed Enables 3.3V power mikroBUS1 (closed=enable)

J28 Closed Enables 3.3V power mikroBUS2 (closed=enable)

3.1.2 Baseboard Connectors

The following table describes the interface connectors on the SAMA5D27 SOM1 Kit1 baseboard.

Table 3-2. Baseboard Interface Connectors

Connector Interfaces to

J5 CLK_AUDIO test point (not populated)

J6 PCB-edge JTAG connector for factory-programming the J-Link-OB

J10 USB-A MicroAB, J-Link-OB port

J11 MPU SAMA5D27 JTAG 10-pin IDC connector

J12 Standard SDMMC0 connector

J14 microSD connector

J15 Ethernet RJ45 connector

J16 CAN 3-pin screw connector

J17 USB-A MicroAB connector

J18 HSIC 2-point header

J19 USB-B type C connector

J20-J23 Jumper to select Pmod functions

J21 Pmod connector

J24-25 mikroBUS1 connectors

J26 Expansion TFT LCD connector for display module

J27 ISC connector

SAMA5D27 SOM1 Kit1

Baseboard Components

...........continued

Connector Interfaces to

J29-J30 mikroBUS2 connectors

J31 Tamper and analog comparator connector

J32 SHDN test point (not populated)

3.2 Function Blocks

3.2.1 SAMA5D27 SOM1

The SAMA5D27 SOM1 main features are as follows:

• Ultra-small SIP (SAMA5D27-D1G-CU) embedding an ultra-low-power SAMA5D27 Arm® Cortex®-

A5 processor and a 1 Gbit DDR2 SDRAM memory

• SST26VF064 64 Mb QSPI Flash

• 24AA02E48 2 Kb serial E2PROM with preprogrammed EUI node identity

• MIC2800 power management device

• KSZ8081RNA Ethernet Phy 10/100 MHz RMII

Refer to the SAMA5D27 SOM1 datasheet for more information.

Figure 3-4. SAMA5D27 SOM1 Block Diagram

MPU + DDR2 1Gb

SAMA5D27C-D1G-CU

LFBGA289

64Mbit Serial QUAD I/O

Flash Memory

SST26VF064BT-104I/MF

1K Serial EEPROM

with EUI-48

Node Identity

24AA02E48T-I/OT

ΤΜ

10BASE-T / 100BASE-TX

PHY With RMII Support

KSZ8081RNAIA

Power Management

Unit

MIC2800-G1JJYML

VDDSDHC VDDISC VDDBU

MAIN

3.3V

TWI Interface

103 I/O Available

CLASS-D Stereo

eMMC Interface

QSPI Interface

Camera Interface

Up to 4 * ADC Inputs

TWI Interface

Up to 4 * UART

2 * SPI Interfaces

Up to 4 * FLEXCOM

LCD Interface up to 24-bit

SSC Interface

Mono PDMIC Interface

Up to 2 * CAN

I²S Interface

SDIO Interface

SD-CARD Interface

External

QSPI

Connection

JTAG & DBGU Interfaces DEBUG

SYSTEM

MISC

USB Dev.

USB Host

HSIC

BACKUP

7 * PIOBU

RXD

WAKEUP

RESET

SHUTDOWN

CLK_AUDIO

COMPP / COMPN

Disable Boot

USB Device Connector

USB Host Connector

HSIC Device

Physical

Receiver

Transceiver

Interface

SAMA5D27 SOM1 Kit1

Baseboard Components

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