Microchip Technology SAMA5D2-PTC-EK Manuel utilisateur

SAMA5D2-PTC-EK

SAMA5D2-PTC-EK User's Guide

Scope

This user's guide describes how to use the SAMA5D2 PTC Evaluation Kit (SAMA5D2-PTC-EK).

The SAMA5D2-PTC-EK is used to evaluate the capabilities of the Peripheral Touch Controller (PTC)

designed for the SAMA5D2 series of embedded MPUs. Refer to the Configuration Summary table in the

SAMA5D2 Series Datasheet for the list of MPUs featuring PTC.

Table of Contents

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

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

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

1.2. Recommended Reading...............................................................................................................3

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

2.1. SAMA5D2-PTC-EK Features....................................................................................................... 4

2.2. SAMA5D2-PTC-EK Content.........................................................................................................5

2.3. Evaluation Kit Specifications........................................................................................................ 5

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

3. Board Components....................................................................................................6

3.1. Board Overview............................................................................................................................6

3.2. Function Blocks............................................................................................................................ 9

3.3. External Interfaces..................................................................................................................... 31

3.4. Debugging Capabilities.............................................................................................................. 35

3.5. PIO Usage on Expansion Connectors........................................................................................40

4. Installation and Operation........................................................................................48

4.1. System and Configuration Requirements...................................................................................48

4.2. Board Setup............................................................................................................................... 48

5. Appendix A. Schematics and Layouts..................................................................... 49

6. Revision History.......................................................................................................62

6.1. Rev. A - 12/2017.........................................................................................................................62

The Microchip Web Site................................................................................................ 63

Customer Change Notification Service..........................................................................63

Customer Support......................................................................................................... 63

Microchip Devices Code Protection Feature................................................................. 63

Legal Notice...................................................................................................................64

Trademarks................................................................................................................... 64

Quality Management System Certified by DNV.............................................................65

Worldwide Sales and Service........................................................................................66

SAMA5D2-PTC-EK

1. Introduction

1.1 Document Layout

The document is organized as follows:

•Chapter 1. "Introduction"

•Chapter 2. "Product Overview" – Important information about the SAMA5D2-PTC-EK board

• Chapter 3. "Board Components" – Specifications of the SAMA5D2-PTC-EK and high-level

description of the major components and interfaces

• Chapter 4. "Installation and Operation" – Instructions on how to get started with the SAMA5D2-

PTC-EK

• Appendix A. "Schematics and Layouts" – SAMA5D2-PTC-EK schematics and layout diagrams

1.2 Recommended Reading

The following Microchip document is available and recommended as a supplemental reference resource:

• SAMA5D2 Series Datasheet. Lit. Number DS60001476

SAMA5D2-PTC-EK

Introduction

2. Product Overview

2.1 SAMA5D2-PTC-EK Features

The SAMA5D2-PTC-EK follows the Microchip MPU strategy for low cost evaluation kits with maximum

reuse capability, and is built on the SAMA5D2 Xplained Ultra (XULT) hardware and software ecosystem.

This board is mainly dedicated to evaluating the Peripheral Touch Controller capabilities.

Table 2-1. SAMA5D2-PTC-EK Features

Characteristics Specifications Components

Processor SAMA5D27-CU (289-ball BGA) 14x14mm

body, 0.8mm pitch

–

Clock speed MPU: 24 MHz, 32.768 KHz

PHY: Crystal 25 MHz

–

Memory Two 16-bit, 2-Gbit DDR2

One 4-Gbit Nand Flash

One QSPI Flash

One Serial Data Flash (optional)

One EEPROM

Winbond W972GG6KB-25

Micron MT29F4G08

Microchip SST26VF064B

Microchip SST26VF032B

Microchip 24AA02E48

Display One LCD interface connector RGB, 18 bits

SD/MMC One standard SD card interface

One microSD card interface

With 3.3V/1.8V power switch

–

USB One USB host type A

One USB device type MicroAB

One USB HSIC

With 5V power switch

–

Connector not mounted

Ethernet One ETH PHY Micrel KSZ8081RN

Debug Port One JLINK-OB/ JLINK-CDC

One JTAG interface

Embedded JLINK-OB and JLINK-

CDC (ATSAM3U4C TFBGA100)

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

Four push button switches

–

DisableBoot, Reset, WakeUp, User

Free

Expansion One set of XPRO WINGS connectors

One ITO FLEX connector

One Port B connector

One PIOBU connector

One mikroBUS connector

Dedicated PTC QTouch

Optional

–

SAMA5D2-PTC-EK

Product Overview

Characteristics Specifications Components

Board Supply From USB A and USB JLINK-OB 5VDC

Backup Power Supply SuperCap ELNA DSK-3R3H204T614-H2L

2.2 SAMA5D2-PTC-EK Content

The SAMA5D2-PTC-EK evaluation kit includes the following:

•The SAMA5D2-PTC-EK board

•A USB cable

2.3 Evaluation Kit Specifications

Table 2-2. Evaluation Kit Specifications

Characteristic Specification

Board SAMA5D2-PTC-EK

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)

Main board dimensions 135 × 90 × 20 mm

RoHS status Compliant

Board identification SAMA5D2 Peripheral Touch Controller Evaluation Kit

2.4 Power Sources

Several options are available to power up the SAMA5D2-PTC-EK board:

•USB powering through the USB Micro-AB connector (J4 - default configuration)

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

(J9)

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

SAMA5D2-PTC-EK

Product Overview

3. Board Components

This section covers the specifications of the SAMA5D2-PTC-EK and provides a high-level description of

the board'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 board. It is expected that

the user will refer to the appropriate documents of these devices to access detailed information.

3.1 Board Overview

The fully-featured SAMA5D2-PTC-EK board integrates multiple peripherals and interface connectors, as

shown in the figure below.

3.1.1 Default Jumper Settings

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

measurement points. Jumpers in blue are not populated.

SAMA5D2-PTC-EK

Board Components

Figure 3-1. Default Jumper Settings

The following table describes the functionality of the jumpers.

Table 3-1. SAMA5D2-PTC-EK Jumper Settings

Jumper Default Function

JP1 Closed VDD_MAIN_5V current measurement

JP2 Closed VDDOSC, VDDUTMII, VDDANA, VDDAUDIOPLL current measurement

JP3 Closed VDDISC + VDDIOP0/1/2 current measurement

JP4 Closed VDDIODDR_MPU current measurement

JP5 Closed VDDCORE current measurement

JP6 Closed VDDBU current measurement

JP7 Open PIOBU1, PIOBU7

JP8 Closed Disables NAND_CS (open=disable)

JP9 Open Enables JTAG-CDC (closed=disable)

JP10 Open Enables JTAG-OB (closed=disable)

JP11 Open Erases SAM3U Flash Code (closed = erase)

SAMA5D2-PTC-EK

Board Components

Jumper Default Function

WARNING

Warning: This jumper is reserved for factory configuration and should

never be used by the end user.

JP12 Closed Powers mikroBUS extension (3.3V)

JP13 Open Disables QSPI

JP14 1-2 Enables 3.3V JLINK-OB, connected to shutdown circuitry

2-3 Enables 3.3V JLINK-OB, always ON

3.1.2 Connectors on Board

The following table describes the interface connectors on the SAMA5D2-PTC-EK.

Table 3-2. SAMA5D2-PTC-EK Board Interface Connectors

Connector Interfaces to

J1 PIOBU, tamper and analog comparator connector (not populated)

J2 JTAG, 10-pin IDC connector

J3 USB Host B. Supports USB host using a type A connector

J4 USB A Device. Supports USB device using a type Micro-AB connector

J5 USB-C HSIC header (not populated)

J6 Standard SDMMC connector

J7 microSD connector

J8 Ethernet 10/100 RJ45

J9 USB-A MicroAB, JLink-OB port

J10 PCB connector for factory-programming the JLINK-OB/SAM3U

J11, J12 Xplained Pro expansion connectors (PTC-dedicated add-on boards)

J13 PIOs PortB connector

J14 ITO connector

J15 A&B mikroBUS connector

J16 Expansion TFT LCD connector for display module

SAMA5D2-PTC-EK

Board Components

3.2 Function Blocks

Figure 3-2. SAMA5D2-PTC-EK Block Diagram

POWER

MONITOR

JLINK-OB

JTAG Interface

JLINK Power

5v/3v3

USB

Connector

Function Select

System Supplies

POWER

REGULATORS

SHDN

UART

MPU JTAG

Interface

JTAG

Switch

JTAG LCD (18bits)

TWI/SPI

RJ45

USB A&B

SDHC0 SDHC1

SAMA5D2-PTC-EK

Push

Button

FPC Connector

DEBUG

Interface

Reset, Wkup

DisBoot, User

SD Card

Connector

uSD

Connector

3v3, 2v5,1v8, 1v2

VDDBU

GPIO

USB

Detection

ETH

PHY

PTC

QSPI

Flash

DDR2

SDRAM

DDR2

SDRAM

Power

Cap

Serial

EEprom

Nand

Flash

PIOBU Connector

MikroBUS

Interface

ITO Connector

XPRO (1&2)

PTC Interface

GPIO

PortB[0-7]

Power

Switch

VBUS

USB-B

Connector

USB-A

Connector

SPI

Flash

Leds

JLINK-OB

JLINK-CDC

SAMA5D27

RGB

Leds

Tri

State

3.2.1 Processor

The SAMA5D2 Series is a high-performance, power-efficient embedded MPU based on the ARM®

Cortex®-A5 processor.

Please refer to the SAMA5D2 Series datasheet for more information.

3.2.2 Power Supply Topology and Power Distribution

3.2.2.1 Input Power Options

Two options are available to power the SAMA5D2-PTC-EK board. The USB-powered operation is the

default configuration and comes from the USB device ports (J4-J9) connected to a PC or a 5VDC supply.

Such USB power source is sufficient to supply the board in most applications. It is important to note that

when the USB-powered operation is used, the USB port down the way has a limited powering capability.

If the USB-B Host port (J3) is required to provide full powering capabilities to the target application, it is

recommended to use an external DC supply instead of a USB power source.

The following figure is a schematic of the power options.

SAMA5D2-PTC-EK

Board Components

Figure 3-3. Input Powering

VDD_MAIN_5V

GND_POWER

VBUS_USBA

VBUS_JLINK

U1A

DMP2160UFD

100nF

C0402

U4A

DMP2160UFD

R5 100K

R0402

R6 DNP

R0402

U1B

DMP2160UFD

JP1

Header 1X2

C12

100nF

C0402

10K

R0402

U4B

DMP2160UFD

100K

R0402

JPR1

Jumper

100nF

C0402

Note: USB-powered operation eliminates additional wires and batteries. It is the preferred mode of

operation for any project that requires only a 5V source at up to 500 mA.

Jumper JP1 is used to perform MAIN_5V current measurements on the SAMA5D2-PTC-EK board.

3.2.2.2 Power Supply Requirements and Restrictions

Detailed information on the device power supplies is provided in tables “SAMA5D2 Power Supplies” and

“Power Supply Connections” in the SAMA5D2 Series datasheet.

3.2.2.3 Power-up and Power-down Considerations

Power-up and power-down considerations are described in section “Power Considerations” of the

SAMA5D2 Series datasheet.

CAUTION

Caution: The power-up and power-down sequences provided in the SAMA5D2 Series

datasheet must be respected for reliable operation of the device.

3.2.2.4 Power Management

The board power management uses three types of regulators:

• One dual synchronous step-down DC-DC regulator (U2 MIC2230) generates the 3.3V/800mA and

1.8V/800mA power lines and utilizes a high-efficiency, fixed-frequency (2.5 MHz), current-mode

PWM control architecture that requires a minimum number of external components.

• One ultra low-dropout linear regulator (U3 MIC47053) generates the 1.25V/500mA from the 1.8V

source.

• One high-performance single 2.5V/150mA is used as a VDDFUSE generator (U5 MIC5366).

The main regulators are enabled through a Field Effect Transistor (FET) scheme. The processor can

assert SHDN (a VDDBU-powered I/O) to shut down the regulators to enter Backup mode. All regulators

on the board are also shut down by the action of the SHDN signal.

A 3.3V battery (supercap) is implemented to permanently maintain VDDBU voltage (note: jumper JP6

must be in place). The board can be woken up by action on the PB4 button, which drives the WKUP

signal (also a VDDBU-powered I/O).

The figure below shows the power management scheme.

SAMA5D2-PTC-EK

Board Components

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