USER GUIDE ATRS485 Xplained Pro Preface ® Atmel ATRS485 Xplained Pro is an extension board to the Atmel Xplained Pro evaluation platform. ATRS485 Xplained Pro is designed to connect with RS485/422 supporting devices. 42488A-MCU-07/2015 Table of Contents Preface .......................................................................................... 1 1. Introduction .............................................................................. 3 1.1. 1.2. Features .............................................................................. 3 Kit Overview ......................................................................... 3 2. Getting Started ........................................................................ 4 2.1. 2.2. 2.3. Three Steps to Start Exploring the Atmel Xplained Pro Platform ...... 4 Connecting ATRS485 Xplained Pro to the Xplained Pro MCU Board .................................................................................. 4 Design Documentation and Related Links .................................. 4 3. Xplained Pro ............................................................................ 5 3.1. 3.2. Hardware Identification System ................................................ 5 Standard Headers and Connectors ........................................... 5 3.2.1. Xplained Pro Standard Extension Header ...................... 5 4. Hardware User Guide ............................................................. 7 4.1. Headers and Connectors ........................................................ 7 4.1.1. ATRS485 Xplained Pro Extension Header ...................... 7 5. Hardware Revision History and Known Issues ...................... 8 5.1. 5.2. Identifying Product ID and Revision .......................................... 8 Revision 6 ........................................................................... 8 6. Document Revision History ..................................................... 9 7. Evaluation Board/Kit Important Notice .................................. 10 ATRS485 Xplained Pro [USER GUIDE] 42488A-MCU-07/2015 2 1. Introduction 1.1 Features ● ● 1.2 RS485/422 transceiver ● Full duplex and half duplex operation ● ESD protection and fail safe mode available ● 5V and 3.3V operation ● Supports profibus mode Xplained Pro hardware identification system Kit Overview Atmel ATRS485 Xplained Pro is a RS485/422 board for the Xplained Pro platform. It connects to any Xplained Pro standard extension header on any RS485 supporting Xplained Pro MCU board. Figure 1-1. ATRS485 Xplained Pro Extension Board ATRS485 Xplained Pro [USER GUIDE] 42488A-MCU-07/2015 3 2. Getting Started 2.1 Three Steps to Start Exploring the Atmel Xplained Pro Platform 2.2 1. Download and install Atmel Studio. 2. Launch Atmel Studio. 3. Connect ATRS485 Xplained Pro to the Xplained Pro MCU board and connect a USB cable to the DEBUG USB port on the Xplained Pro MCU board. Connecting ATRS485 Xplained Pro to the Xplained Pro MCU Board ATRS485 Xplained Pro is designed to be connected to the Xplained Pro header marked EXT1. It is compatible with all Xplained Pro EXT headers. Refer to the pin-out of your Xplained Pro evaluation kit to find out which Xplained Pro EXT headers that can be used. Once the Xplained Pro MCU board is powered, the green power LED will be lit and Atmel Studio will auto detect which Xplained Pro MCU and extension board(s) connected. Atmel Studio will present relevant information like datasheets and kit documentation. The kit landing page in Atmel Studio also have the option to launch Atmel Software Framework (ASF) example applications for the kit. The target device is programmed and debugged by the on-board Embedded Debugger. No external programmer or debugger tool is needed. 2.3 Design Documentation and Related Links The following list contains links to the most relevant documents and software for ATRS485 Xplained Pro 1. 1 Xplained Pro products - Atmel Xplained Pro is a series of small-sized and easy-to-use evaluation kits ® for Atmel AVR 8- and 32-bit microcontrollers and SoC RF modules. It consists of a series of low cost MCU and wireless boards for evaluation and demonstration of features and capabilities of different MCU and / wireless families. 2 2. ATRS485 Xplained Pro User Guide - PDF version of this User Guide. 3. ATRS485 Xplained Pro Design Documentation - Package containing schematics, BOM, assembly drawings, 3D plots, layer plots etc. 4. Atmel Studio - Free Atmel IDE for development of C/C++ and assembler code for Atmel microcontrollers. 5. ATRS485-Xpro - Product page with information and documentation. 3 4 5 1 http://www.atmel.com/XplainedPro http://www.atmel.com/tools/atrs485-xpro.aspx?tab=documents 3 http://www.atmel.com/tools/atrs485-xpro.aspx?tab=documents 4 http://www.atmel.com/atmelstudio 5 http://www.atmel.com/devices/atrs485.aspx 2 ATRS485 Xplained Pro [USER GUIDE] 42488A-MCU-07/2015 4 3. Xplained Pro Xplained Pro is an evaluation platform that provides the complete Atmel microcontroller and / SoC RF experience. The platform consists of ● Microcontroller (MCU) and RF evaluation kits ● Support a wide range of extension boards ● Atmel Software Framework (ASF) drivers and demo code integrated with Atmel Studio ● User guides, application notes, datasheets, and example code through Atmel Studio 1 Xplained Pro MCU and extension boards can be purchased in the Atmel Web Store . 3.1 Hardware Identification System All Xplained Pro compatible extension boards have an Atmel ATSHA204A CryptoAuthentication™ chip mounted. This chip contains information that identifies the extension with its name and some extra data. When an Xplained Pro extension board is connected to an Xplained Pro board the information is read and sent to Atmel Studio. The Atmel Kits extension, installed with Atmel Studio, will give relevant information, code examples, and links to relevant documents. Table 3-1, “Xplained Pro ID Chip Content” on page 5 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 Atmel’\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 Standard Headers and Connectors 3.2.1 Xplained Pro Standard Extension Header All Xplained Pro evaluation kits have one or more dual row, 20-pin, 100mil extension headers. Xplained Pro boards have male headers while Xplained Pro extension boards have their female counterparts. Note that all pins are not always connected. However, all the connected pins follow the defined pin-out described in Table 3-2, “Xplained Pro Extension Header” on page 5. The extension headers can be used to connect a wide variety of Xplained Pro extensions to Xplained Pro boards and to access the pins of the target MCU on Xplained Pro board directly. Table 3-2. Xplained Pro Extension Header 1 Pin Number Name Description 1 ID Communication line to the ID chip on extension board. 2 GND Ground. 3 ADC(+) Analog to digital converter, alternatively positive part of differential ADC. 4 ADC(-) Analog to digital converter, alternatively negative part of differential ADC. 5 GPIO1 General purpose I/O. 6 GPIO2 General purpose I/O. http://www.atmel.com/buy/inventory/default.aspx?parts=ATRS485-XPRO ATRS485 Xplained Pro [USER GUIDE] 42488A-MCU-07/2015 5 Pin Number Name Description 7 PWM(+) Pulse width modulation, alternatively positive part of differential PWM. 8 PWM(-) Pulse width modulation, alternatively negative part of differential PWM. 9 IRQ/GPIO Interrupt request line and/or general purpose I/O. 10 SPI_SS_B/GPIO Slave select for SPI and/or general purpose I/O. 11 TWI_SDA Data line for two-wire interface. Always implemented, bus type. 12 TWI_SCL Clock line for two-wire interface. Always implemented, bus type. 13 USART_RX Receiver line of Universal Synchronous and Asynchronous serial Receiver and Transmitter. 14 USART_TX Transmitter line of Universal Synchronous and Asynchronous serial Receiver and Transmitter. 15 SPI_SS_A Slave select for SPI. Should be unique if possible. 16 SPI_MOSI Master out slave in line of Serial peripheral interface. Always implemented, bus type. 17 SPI_MISO Master in slave out line of Serial peripheral interface. Always implemented, bus type. 18 SPI_SCK Clock for Serial peripheral interface. Always implemented, bus type. 19 GND Ground. 20 VCC Power for extension board. ATRS485 Xplained Pro [USER GUIDE] 42488A-MCU-07/2015 6 4. Hardware User Guide 4.1 Headers and Connectors 4.1.1 ATRS485 Xplained Pro Extension Header ATRS485 Xplained Pro implements one Xplained Pro Standard Extension Header on page 5 marked with EXT in silkscreen. This header makes it possible to connect the board to any RS485 supporting Xplained Pro MCU board. The pin-out definition for the extension header can be seen in Table 4-1, “ATRS485 Xplained Pro Extension Header” on page 7. Table 4-1. ATRS485 Xplained Pro Extension Header Pin on EXT Function Description 1 ID_DATA Communication line to ID chip 2 GND Ground 3 NC 4 NC 5 GPIO1_RTS Driver Enable to RS485 Transceiver 6 GPIO2_CTS Receiver Enable to RS485 Transceiver 7 NC 8 NC 9 NC 10 NC 11 NC 12 NC 13 UART_RX Receive pin of target MCU RS485 interface 14 UART_TX Transmit pin of target MCU RS485 interface 15 NC 16 NC 17 NC 18 NC 19 GND Ground. 20 VCC_3V3_5V0 Target supply voltage ATRS485 Xplained Pro [USER GUIDE] 42488A-MCU-07/2015 7 5. Hardware Revision History and Known Issues 5.1 Identifying Product ID and Revision The revision and product identifier of Xplained Pro boards can be found in two ways; through Atmel Studio or by looking at the sticker on the bottom side of the PCB. By connecting an Xplained Pro board to a computer with Atmel Studio running, an information window will pop up. The first six digits of the serial number, which is listed under kit details, contain the product identifier and revision. Information about connected Xplained Pro extension boards will also appear in the Atmel Kits window. The same information can be found on the sticker on the bottom side of the PCB. Most kits will print the identifier and revision 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 QR-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 kit identifier for ATRS485 Xplained Pro is 2518. 5.2 Revision 6 Revision 6 of ATRS485 Xplained Pro is the initial released version, there are no known issues. ATRS485 Xplained Pro [USER GUIDE] 42488A-MCU-07/2015 8 6. Document Revision History Document revision Date Comment 42488A 07/2015 Initial document release ATRS485 Xplained Pro [USER GUIDE] 42488A-MCU-07/2015 9 7. Evaluation Board/Kit Important Notice This evaluation board/kit is intended for use for FURTHER ENGINEERING, DEVELOPMENT, DEMONSTRATION, OR EVALUATION PURPOSES ONLY. It is not a finished product and may not (yet) comply with some or any technical or legal requirements that are applicable to finished products, including, without limitation, directives regarding electromagnetic compatibility, recycling (WEEE), FCC, CE or UL (except as may be otherwise noted on the board/kit). Atmel supplied this board/kit "AS IS," without any warranties, with all faults, at the buyer's and further users' sole risk. The user assumes all responsibility and liability for proper and safe handling of the goods. Further, the user indemnifies Atmel from all claims arising from the handling or use of the goods. Due to the open construction of the product, it is the user's responsibility to take any and all appropriate precautions with regard to electrostatic discharge and any other technical or legal concerns. EXCEPT TO THE EXTENT OF THE INDEMNITY SET FORTH ABOVE, NEITHER USER NOR ATMEL SHALL BE LIABLE TO EACH OTHER FOR ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES. No license is granted under any patent right or other intellectual property right of Atmel covering or relating to any machine, process, or combination in which such Atmel products or services might be or are used. ATRS485 Xplained Pro [USER GUIDE] 42488A-MCU-07/2015 10 Atmel Corporation T: (+1)(408) 441.0311 1600 Technology Drive, San Jose, CA 95110 USA F: (+1)(408) 436.4200 | www.atmel.com © 2015 Atmel Corporation. / Rev.: 42488A-MCU-07/2015 ® ® ® Atmel , Atmel logo and combinations thereof, Enabling Unlimited Possibilities , AVR , and others are registered trademarks or trademarks of Atmel Corporation in U.S. and other countries. Other terms and product names may be trademarks of others. DISCLAIMER: The information in this document is provided in connection with Atmel products. No license, express or implied, by estoppel or otherwise, to any intellectual property right is granted by this document or in connection with the sale of Atmel products. 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