SLWRB4321A

UG351: WGM160P Wi-Fi Module Wireless Starter Kit User s Guide A Wireless Starter Kit with the BRD4321A Radio Board is an ex- BRD4321A RADIO BOARD FEATURES cellent starting point to get familiar with the WGM160P Wi-Fi Module. It also provides the necessary tools for developing a Sili- WGM160P Wi-Fi Module with 2 MB Flash and 512 kB RAM, with integrated antenna con Labs wireless application. USB Micro-B connector offers device BRD4321A is a plug-in board for the Wireless Starter Kit Mainboard. It contains the mode support WGM160P Wi-Fi Module, a USB Micro-B connector and a MicroSD card slot. MicroSD card slot The Wireless Starter Kit Mainboard contains an on-board J-Link debugger with a Packet WIRELESS STK MAINBOARD FEATURES Trace Interface and a virtual COM port, enabling application development and debugging the attached radio board as well as external hardware. The mainboard also contains Advanced Energy Monitor sensors and peripherals for easy demonstration of some of the WGM160P s many capa- Packet Trace Interface bilities. Virtual COM Port This document describes how to use the BRD4321A Radio Board together with a Wire- SEGGER J-Link on-board debugger less Starter Kit Mainboard. External device debugging Ethernet and USB connectivity Silicon Labs Si7021 Relative Humidity and Temperature sensor Low Power 128x128 pixel Memory LCD User LEDs / Pushbuttons 20-pin 2.54 mm EXP header Breakout pads for Wi-Fi Module I/O CR2032 coin cell battery support EXP BOARD FEATURES Ethernet PHY and connector SOFTWARE SUPPORT Simplicity Studio Gecko OS Studio ORDERING INFORMATION SLWSTK6121A SLWRB4321A silabs.com Building a more connected world. Rev. 1.0 Table of Contents 1. Introduction................................4 1.1 Radio Boards..............................4 1.2 Ordering Information ...........................4 1.3 Getting Started .............................4 2. Hardware Overview.............................5 2.1 Hardware Layout.............................5 2.2 Block Diagram..............................6 3. Connectors................................7 3.1 J-Link USB Connector...........................7 3.2 Ethernet Connector............................7 3.3 Breakout Pads .............................8 3.4 EXP Header ..............................9 3.4.1 EXP Header Pinout..........................10 3.5 Debug Connector.............................11 3.6 Simplicity Connector............................12 3.7 Debug Adapter .............................13 4. Power Supply and Reset.......................... 14 4.1 Radio Board Power Selection ........................14 4.2 Board Controller Power...........................15 4.3 WGM160P Reset.............................15 4.4 Battery Holder..............................15 5. Peripherals............................... 16 5.1 Push Buttons and LEDs ..........................16 5.2 Memory LCD-TFT Display..........................17 5.3 Si7021 Relative Humidity and Temperature Sensor .................18 5.4 USB Micro-B Connector ..........................19 5.5 MicroSD Card Slot ............................19 5.6 Virtual COM Port.............................20 5.6.1 Host Interfaces ...........................21 5.6.2 Serial Configuration..........................21 5.6.3 Hardware Handshake .........................22 6. RMII Ethernet EXP Board.......................... 23 6.1 BRD8026A Errata ............................23 7. Board Controller............................. 24 7.1 Admin Console .............................24 7.1.1 Connecting.............................24 silabs.com Building a more connected world. Rev. 1.0 2