Microchip Technology SAMA5D2-PTC-EK Manual de usuario
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.
© 2017 Microchip Technology Inc. DS50002709A-page 1
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
© 2017 Microchip Technology Inc. DS50002709A-page 2
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
© 2017 Microchip Technology Inc. DS50002709A-page 3
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
Optional
Optional
–
SAMA5D2-PTC-EK
Product Overview
© 2017 Microchip Technology Inc. DS50002709A-page 4
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
© 2017 Microchip Technology Inc. DS50002709A-page 5
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
© 2017 Microchip Technology Inc. DS50002709A-page 6
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
© 2017 Microchip Technology Inc. DS50002709A-page 7
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
© 2017 Microchip Technology Inc. DS50002709A-page 8
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
5v
5v
5v
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
© 2017 Microchip Technology Inc. DS50002709A-page 9
Figure 3-3. Input Powering
VDD_MAIN_5V
GND_POWER
GND_POWER
GND_POWER
GND_POWER
GND_POWER
VBUS_USBA
VBUS_JLINK
U1A
DMP2160UFD
1
2
6
7
C1
100nF
C0402
U4A
DMP2160UFD
1
2
6
7
R5 100K
R0402
R6 DNP
R0402
U1B
DMP2160UFD
4
5
3
8
JP1
Header 1X2
1
2
C12
100nF
C0402
R1
10K
R0402
U4B
DMP2160UFD
4
5
3
8
R2
100K
R0402
JPR1
Jumper
C2
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
© 2017 Microchip Technology Inc. DS50002709A-page 10
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