SLWRB4179B Silicon Labs

UG422: EFR32xG21 2.4 GHz 10 dBm with EFP Wireless Starter Kit User s Guide A Wireless Starter Kit with the BRD4179B Radio Board is an ex- BRD4179B RADIO BOARD FEATURES cellent starting point to get familiar with the EFR32 Wireless Gecko Wireless System-on-Chip. It also provides all necessary EFR32xG21 Wireless Gecko Wireless SoC with 1024 kB Flash and 96 kB RAM tools for developing a Silicon Labs wireless application. (EFR32MG21A010F1024IM32). BRD4179B is a plug-in board for the Wireless Starter Kit Mainboard. It is a complete ref- Inverted-F PCB antenna (2.4 GHz band) erence design for the EFR32xG21 Wireless SoC, with matching network and a PCB an- EFP0104 Energy Friendly Power tenna for 10 dBm output power in the 2.4 GHz band. The EFR32 on the radio board is Management IC powered by an EFP01 Energy Friendly Power Management IC (PMIC) in the Wired Buck WIRELESS STK MAINBOARD FEATURES with LDO C configuration (EFP0104) for improved efficiency. The Wireless Starter Kit Mainboard contains an on-board J-Link debugger with a Packet Advanced Energy Monitor Trace Interface and a Virtual COM port, enabling application development and debug- Packet Trace Interface ging of the attached radio board as well as external hardware. Virtual COM port SEGGER J-Link on-board debugger This document describes how to use the BRD4179B Radio Board together with a Wire- less Starter Kit Mainboard. External device debugging Ethernet and USB connectivity Low power 128x128 pixel Memory LCD- TFT User LEDs / pushbuttons 20-pin 2.54 mm EXP header Breakout pads for Wireless SoC I/O CR2032 coin cell battery support SOFTWARE SUPPORT Simplicity Studio Energy Profiler Network Analyzer ORDERING INFORMATION SLWRB4179B 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 EFP01 PMIC Power Topology.........................15 4.3 Board Controller Power...........................15 4.4 EFR32 Reset ..............................15 5. Peripherals............................... 16 5.1 Push Buttons and LEDs...........................16 5.2 EFP01 PMIC ..............................16 5.3 Virtual COM Port .............................17 5.3.1 Host Interfaces ............................18 5.3.2 Serial Configuration...........................18 5.3.3 Hardware Handshake ..........................19 6. Board Controller............................. 20 6.1 Admin Console..............................20 6.1.1 Connecting..............................20 6.1.2 Built-in Help .............................20 6.1.3 Command Examples ..........................21 6.2 Virtual UART ..............................21 6.2.1 Target to Host.............................21 6.2.2 Host to Target.............................21 6.2.3 Limitations..............................21 silabs.com Building a more connected world. Rev. 1.0 2