Microchip Technology OLED1 Xplained Pro User manual

OLED1 Xplained Pro
OLED1 Xplained Pro User's Guide
Preface
Microchip OLED1 Xplained Pro is an extension board to the Microchip Xplained Pro evaluation platform. The board
enables the user to experiment with user interface applications with buttons, LEDs, and a display.
© 2020 Microchip Technology Inc. User Guide DS40002176A-page 1

Table of Contents
Preface........................................................................................................................................................... 1
1. Introduction............................................................................................................................................. 3
1.1. Features....................................................................................................................................... 3
1.2. Kit Overview................................................................................................................................. 3
2. Getting Started........................................................................................................................................ 4
2.1. Xplained Pro Quick Start.............................................................................................................. 4
2.2. Design Documentation and Relevant Links................................................................................. 4
3. Xplained Pro............................................................................................................................................5
3.1. Hardware Identification System....................................................................................................5
3.2. Xplained Pro Headers and Connectors........................................................................................5
4. Hardware User Guide............................................................................................................................. 7
4.1. Electrical Characteristics.............................................................................................................. 7
4.2. Headers and Connectors............................................................................................................. 7
4.3. Peripherals................................................................................................................................... 8
5. Hardware Revision History and Known Issues..................................................................................... 10
5.1. Identifying Product ID and Revision........................................................................................... 10
5.2. Revision 3...................................................................................................................................10
6. Document Revision History................................................................................................................... 11
The Microchip Website.................................................................................................................................12
Product Change Notification Service............................................................................................................12
Customer Support........................................................................................................................................ 12
Microchip Devices Code Protection Feature................................................................................................ 12
Legal Notice................................................................................................................................................. 12
Trademarks.................................................................................................................................................. 13
Quality Management System....................................................................................................................... 13
Worldwide Sales and Service.......................................................................................................................14
OLED1 Xplained Pro
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1. Introduction
1.1 Features
• UG-2832HSWEG04 Monochrome OLED Display
– 128 x 32 Pixels
– Controlled By 4-wire SPI Interface, Up To 100 MHz
• Three LEDs
• Three Mechanical Push Buttons
• Xplained Pro Hardware Identification System
1.2 Kit Overview
OLED1 Xplained Pro is a basic extension board for the Xplained Pro platform with three LEDs, three push buttons,
and an OLED display. The OLED display is controlled via a SPI interface up to 100 MHz. OLED1 Xplained Pro
connects to any Xplained Pro standard extension header on any Xplained Pro MCU board.
Figure 1-1. OLED1 Xplained Pro Top Overview
OLED1 Xplained Pro
Introduction
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2. Getting Started
2.1 Xplained Pro Quick Start
Steps to start exploring the Xplained Pro platform:
1. Download and install Atmel Studio/MPLAB® X.
2. Launch Atmel Studio/MPLAB® X.
When the Xplained Pro MCU kit is connected to the computer for the first time, the operating system installs the
driver software automatically. This driver supports 32-bit and 64-bit versions of Microsoft® Windows® XP, Windows
Vista®, Windows 7, Windows 8, Windows 10, and Windows Server 2012.
When the Xplained Pro MCU board is powered, the power LED (green) glows, and Atmel Studio/MPLAB® X
automatically detects the specific Xplained Pro MCU and extension board(s) that are connected. The landing page of
the kit in the Atmel Studio has an option to launch the Atmel Software Framework (ASF) and the Atmel START
example application codes for the kit. The target device is programmed and debugged by the on-board embedded
debugger and, therefore, no external programmer or debugger tool is required.
2.2 Design Documentation and Relevant Links
The following list contains links to the most relevant documents and software for OLED1 Xplained Pro:
•Xplained Products - Xplained Evaluation Kits are a series of easy-to-use evaluation kits for Microchip
microcontrollers and other Microchip products.
– Xplained Nano - used for low pin count devices and provides a minimalistic solution with access to all I/O
pins of the target microcontroller.
– Xplained Mini - used for medium pin count devices and adds Arduino Uno compatible header footprint and
a prototyping area.
– Xplained Pro - used for medium-to-high pin count devices that feature advanced debugging and
standardized extensions for peripheral functions.
Note: All the above kits have on-board programmers/debuggers, which creates a set of low-cost boards for
evaluation and demonstration of features and capabilities of different Microchip products.
•Atmel Studio - Free IDE for the development of C/C++ and assembler code for microcontrollers.
•Data Visualizer - Data Visualizer is a program used for processing and visualizing data. The Data Visualizer
can receive data from various sources such as serial ports and on-board debugger’s Data Gateway Interface as
found on Curiosity Nano and Xplained Pro boards.
•Hardware Users Guide in PDF format - PDF version of this User Guide.
•Design Documentation - Package containing CAD source, schematics, BOM, assembly drawings, 3D plots,
layer plots, etc.
•OLED1 Xplained Pro on Microchip web page - Microchip website link.
OLED1 Xplained Pro
Getting Started
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3. Xplained Pro
Xplained Pro is an evaluation platform containing a series of microcontroller boards (evaluation kits) and extension
boards. Atmel Studio/MPLAB® X is used to program and debug the microcontrollers on these boards. Atmel Studio
includes Advanced Software Framework (ASF) and Atmel START, which has drivers and demo code, and Data
Visualizer, which supports data streaming and advanced debugging. Xplained Pro evaluation kits can be connected
to a wide range of Xplained Pro extension boards through standardized headers and connectors. Xplained Pro
extension boards have identification (ID) chips to uniquely identify which boards are connected to the Xplained Pro
evaluation kits.
3.1 Hardware Identification System
All Xplained Pro extension boards come with an identification chip (ATSHA204A CryptoAuthentication™ chip) to
uniquely identify the boards that are connected to the Xplained Pro Evaluation Kit. This chip contains information that
identifies the extension with its name and some extra data. When an Xplained Pro extension is connected to an
Xplained Pro Evaluation Kit, the information is read and sent to the Atmel Studio/MPLAB® X. The following table
shows the data fields stored in the ID chip with example content.
Table 3-1. Xplained Pro ID Chip Content
Data Field Data Type Example Content
Manufacturer ASCII string Microchip'\0'
Product name ASCII string Segment LCD1 Xplained Pro'\0'
Product revision ASCII string 02'\0'
Product serial number ASCII string 1774020200000010’\0’
Minimum voltage [mV] uint16_t 3000
Maximum voltage [mV] uint16_t 3600
Maximum current [mA] uint16_t 30
3.2 Xplained Pro Headers and Connectors
3.2.1 Xplained Pro Standard Extension Header
All Xplained Pro kits have many dual-row, 20-pin, 100 mil extension headers. The Xplained Pro MCU boards have
male headers, while the Xplained Pro extensions have their female counterparts. The following table provides the pin
description of all the connected pins.
Info: Not all pins are always connected to all extension headers.
The extension headers can be used to connect a variety of Xplained Pro extensions to Xplained Pro MCU boards or
to access the pins of the target microcontroller on the Xplained Pro boards.
Table 3-2. Xplained Pro Standard Extension Header
Pin Number Pin Name Description
1 ID Pin to communicate with the ID chip on an extension board.
2 GND Ground.
OLED1 Xplained Pro
Xplained Pro
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...........continued
Pin Number Pin Name Description
3 ADC(+) Analog-to-Digital Converter; alternatively, a pin for the positive terminal of a
differential ADC.
4 ADC(-) Analog-to-Digital Converter; alternatively, a pin for the negative terminal of a
differential ADC.
5 GPIO1 General purpose I/O pin.
6 GPIO2 General purpose I/O pin.
7 PWM(+) Pulse-Width Modulation; alternatively, a pin for the positive part of a
differential PWM.
8 PWM(-) Pulse-Width Modulation; alternatively, a pin for the negative part of a
differential PWM.
9 IRQ/GPIO Interrupt request pin and/or general purpose I/O pin.
10 SPI_SS_B/GPIO Slave select pin for Serial Peripheral Interface (SPI) and/or general purpose
I/O pin.
11 I2C_SDA Data pin for I2C interface. Always connected, bus type.
12 I2C_SCL Clock pin for I2C interface. Always connected, bus type.
13 UART_RX Receiver pin of target device UART.
14 UART_TX Transmitter pin of target device UART.
15 SPI_SS_A Slave select for SPI. This pin should preferably not be connected to anything
else.
16 SPI_MOSI SPI master out slave in pin. Always connected, bus type.
17 SPI_MISO SPI master in slave out pin. Always connected, bus type.
18 SPI_SCK SPI clock pin. Always connected, bus type.
19 GND Ground pin for extension boards.
20 VCC Power pin for extension boards.
OLED1 Xplained Pro
Xplained Pro
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4. Hardware User Guide
4.1 Electrical Characteristics
OLED1 Xplained Pro can be connected to several Xplained Pro MCU boards and manually connected to other
hardware. Xplained Pro MCU board(s) that do not have 3.3V as its primary target voltage will read all ID devices on
connected extensions to check if they support the target voltage before enabling it to the extension headers. The
table below shows the static content written in the ID chip.
Table 4-1. OLED1 Xplained Pro ID Chip Content
Data Field Content
Product name OLED1 Xplained Pro
Minimum operation voltage 3.0V
Maximum operation voltage 3.6V
Maximum current 10mA
See also Hardware Identification System.
4.2 Headers and Connectors
4.2.1 OLED1 Xplained Pro Extension Header
OLED1 Xplained Pro implements one Xplained Pro standard extension header marked with EXT in silkscreen. This
header makes it possible to connect the board to any Xplained Pro MCU board. The pinout definition for the
extension header can be seen in the table below.
Table 4-2. OLED1 Xplained Pro Extension Header
Pin Number Function Description
1 ID Communication line to ID chip
2 GND Ground
3 BUTTON2 Push button 2, active-low
4 BUTTON3 Push button 3, active-low
5 DATA_CMD_SEL Data/command select for OLED display. High = data, low = command.
6 LED3 LED3, active-low
7 LED1 LED1, active-low
8 LED2 LED2, active-low
9 BUTTON1 Push button 1, active-low
10 DISPLAY_RESET Reset line for OLED display, active-low
11 NC
12 NC
13 NC
14 NC
OLED1 Xplained Pro
Hardware User Guide
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...........continued
Pin Number Function Description
15 DISPLAY_SS OLED display slave select, active-low
16 SPI MOSI MOSI signal SPI connected to OLED display
17 NC
18 SPI SCK Clock signal for SPI connected to OLED display
19 GND Ground
20 VCC Target supply voltage
Related Links
3.2.1 Xplained Pro Standard Extension Header
4.3 Peripherals
4.3.1 LEDs
There are three yellow LEDs available on OLED1 Xplained Pro. The LEDs can be activated by driving the connected
I/O line low.
Table 4-3. LED Connections
Pin On EXT Connector Silk Screen Marking
7 LED1
8 LED2
6 LED3
4.3.2 Push Buttons
There are three push buttons available on OLED1 Xplained Pro. When a button is pushed, the corresponding I/O pin
is connected to ground. There are no external pull-up resistors on OLED1 Xplained Pro, so internal pull-up resistors
have to be enabled in the target microcontroller.
Info: Remember to enable internal pull-up resistors in the target device to get a defined electrical level on
the I/O lines connected to the buttons.
Table 4-4. Push Buttons Connections
Pin On EXT Connector Silk Screen Marking
9 BUTTON1
3 BUTTON2
4 BUTTON3
4.3.3 OLED Display
OLED1 Xplained Pro features a 128 x 32 pixel white monochrome OLED display, UG-2832HSWEG04, from
WiseChip Semiconductor Inc. The display has a SSD1306 display controller by Solomon Systech built in and is
controlled via a 4-wire SPI interface + reset with the signals described in the table below. The data sheets for the
display module or the display controller is not publicly available and has to be acquired from the respective
manufacturers.
OLED1 Xplained Pro
Hardware User Guide
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Info:
Note that the OLED display does not have a SPI MISO signal. That means that data can only be written to
the display, not read.
Table 4-5. OLED Display Connections
Pin On EXT
Connector
Signal Name Description
16 SPI_MOSI SPI master out, slave in signal. Used to write data to the display.
18 SPI_SCK SPI clock signal, generated by the master.
5 DATA_CMD_SEL Data/command select. Used to choose whether the communication is
data to the display memory or a command to the LCD controller.
15 DISPLAY_SS SPI slave select signal, must be held low during SPI communication.
10 DISPLAY_RESET Reset signal to the OLED display, active-low. Used during initialization of
the display.
OLED1 Xplained Pro
Hardware User Guide
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5. Hardware Revision History and Known Issues
5.1 Identifying Product ID and Revision
There are two ways to find the revision and product identifier of the Xplained Pro boards: either through Atmel Studio/
MPLAB® X or by looking at the sticker on the bottom side of the PCB.
When an Xplained Pro MCU board is connected to a computer with Atmel Studio/MPLAB® X running, an information
window with the serial number is shown. The first six digits of the serial number contain the product identifier and
revision. Information about connected Xplained Pro extension boards is also shown in the window.
The same information can be found on the sticker on the bottom side of the PCB. Most kits have stickers that have
the identifier and revision printed in plain text as A09-nnnn/rr, where nnnn is the identifier, and rr is the revision.
Boards with limited space have a sticker with only a data matrix code, which contains a serial number string.
The serial number string has the following format:
"nnnnrrssssssssss"
n = product identifier
r = revision
s = serial number
The product identifier for the OLED1 Xplained Pro is A09-1769.
5.2 Revision 3
Revision 3 of OLED1 Xplained Pro is the initial released version.
OLED1 Xplained Pro boards with a serial number that ends with a number lower than 11148 may have a wrong
revision programmed into the Xplained Pro ID chip. This will only affect the information displayed by the Atmel Kits
extension in Atmel Studio. It will not affect the operation of the board.
OLED1 Xplained Pro
Hardware Revision History and Known Issues
© 2020 Microchip Technology Inc. User Guide DS40002176A-page 10