BRD4320A Reference Manual Wizard Gecko WGM110 Wi-Fi® Module Radio Board Reference Manual The easy to use Silicon Labs Wizard Gecko WGM110 Wi-Fi Module offers best-in-class size with high RF performance for long range. WGM110 Module combines an integrated antenna, a high performance Wi-Fi transceiver, an energy efficient 32-bit MCU and a ready to use all inclusive Wi-Fi software and SDK. A reliable, secure and flexible protocol stack together with the features listed above and the required certifications offer a rapid Time to Market solution. Silicon Labs' BGScript™ scripting language allows standalone application design without the need for an external host CPU. Silicon Labs offers worldwide application engineering support. RADIO BOARD FEATURES • Wi-Fi Module: WGM110 • 802.11b/g/n compliant • TX power: +16 dBm • RX sensitivity: -98 dBm • CPU core: 32-bit ARM® Cortex-M3 • Flash memory: 1 MB • RAM: 128 kB • microSD card slot • USB 2.0 micro-B connector (Device Mode support) • Modular certification • FCC • IC • Japan • Korea • CE compliant • Fully plug-in compatible with Silicon Labs Wireless Starter Kit Mainboard (BRD4001A) silabs.com | Smart. Connected. Energy-friendly. Rev. 1.01 BRD4320A Reference Manual BRD4320A Radio Board Description 1. BRD4320A Radio Board Description The BRD4320A Radio Board contains the Wizard Gecko WGM110 Wi-Fi Module soldered onto a carrier board with two connectors. The connectors on the carrier board are used for attaching the BRD4320A on to a Silicon Labs Wireless Starter Kit Mainboard BRD4001A and together these two boards and the software in the WGM110 Module make up the Wizard Gecko Wi-Fi Module Wireless Starter Kit. silabs.com | Smart. Connected. Energy-friendly. Rev. 1.01 | 1 BRD4320A Reference Manual Radio Board Key Features 2. Radio Board Key Features The key features of the Wizard Gecko WGM110 Wi-Fi Module are listed below. Key features • Wizard Gecko WGM110 Wi-Fi Module • USB connector for: • USB data connection • Stand-alone powering • microSD card slot: • File system: FAT 16 or FAT 32 • Supported memory size: max. 32 GB • Supported memory card types: microSD or microSDHC silabs.com | Smart. Connected. Energy-friendly. Rev. 1.01 | 2 BRD4320A Reference Manual BRD4320A Connector 3. BRD4320A Connector The board-to-board connector scheme allows access to all Wizard Gecko WGM110 Wi-Fi Module GPIO pins as well as to the RESET signal. For more information on the functionalities of the available pins please see the WGM110 Wi-Fi Module Data Sheet. 3.1 BRD4320A Connector Pin Associations The figure below shows the pin mapping on the connector to the Module pins and their corresponding function on the Wireless Starter Kit Mainboard. P200 Upper Row 3v3 NC / P36 NC / P38 NC / P40 NC / P42 NC / P44 DBG_SWDIO / F0 DBG_SWO / F2 DBG_RESET / F4 VCOM_TX / PE10 / F6 VCOM_CTS / PE12 / F8 LED0 / PC0 / F10 BUTTON0 / PA2 / F12 DISP_EN / PC13 / F14 DISP_SI / SD_MOSI / PD0 / F16 DISP_COM / PC15 / F18 NC / F20 USB_VBUS 5V Board ID SCL P201 Lower Row GND P37 / PC9 / SENSOR_EN P39 / PC15 / DISP_COM P41 / NC P43 / NC P45 / NC F1 / DBG_SWCLK F3 / NC F5 / NC F7 / PE11 / VCOM_RX F9 / PE13 / VCOM_RTS F11 / PC1 / LED1 F13 / PA6 / BUTTON1 F15 / PD2 / SD_CLK / DISP_SCLK F17 / PC14 / DISP_SCS F19 / NC F21 / NC USB_VREG GND Board ID SDA GND PB11 / P0 PB12 / P2 PE14 / P4 PE15 / P6 VCOM_CTS / PE12 / P8 VCOM_RTS / PE13 / P10 I2C_SCL / PE1 / P12 BUTTON0 / PA2 / P14 BUTTON1 / PA6 / P16 LED0 / PC0 / P18 LED1 / PC1 / P20 VCOM_EN / PE2 / P22 WIFI_MISO / P24 WIFI_MOSI / P26 WIFI_CLK / P28 WIFI_CS / P30 NC / P32 NC / P34 GND VMCU_IN P1 / PD0 / SD_MOSI / DISP_SI P3 / PD1 / SD_MISO P5 / PD2 / SD_CLK / DISP_SCLK P7 / PD3 P9 / PD4 P11 / PD5 P13 / PE0 / I2C_SDA P15 / NC P17 / NC P19 / NC P21 / NC P23 / NC P25 / PE10 / VCOM_TX P27 / PE11 / VCOM_RX P29 / PD6 / SD_CD P31 / PD7 / SD_CS P33 / PC13 / DISP_EN P35 / PC14 / DISP_SCS VRF_IN Figure 3.1. Simplicity Connector 3.2 BRD4320A Connector Type BRD4320A contains two dual-row, female socket, 0.05" pitch polarized connectors (P/N: SFC-120-T2-L-D-A-K-TR) which provide the interface to the Wireless Starter Kit Mainboard. The Mainboard has the corresponding male header pin connectors (P/N: TFC-120-02F-D-LC-ND). silabs.com | Smart. Connected. Energy-friendly. Rev. 1.01 | 3 BRD4320A Reference Manual MicroSD Card Slot 4. MicroSD Card Slot BRD4320A contains a microSD card slot which is connected to the Wizard Gecko WGM110 Wi-Fi Module. It enables testing of SW applications utilizing a microSD or microSDHC card. The memory card can be accessed from the host processor using BGAPI commands, BGScript commands or by using the internal HTTP Server of the Module. Note: The microSD card slot is located on the bottom side of the BRD4320A Radio Board. To install a microSD or microSDHC card remove the Radio Board from the WSTK Mainboard and push the microSD or microSDHC card into the card slot with the metal contacts of the memory card facing towards the PCB and attach the Radio Board back into WSTK Mainboard connectors. CHARACTERISTICS Supported file systems: FAT 16 and FAT 32 Maximum memory size: 32 GB. Supported memory card types: microSD and microSDHC. Programming related information The microSD card slot is connected to USART1 Location 1 of the WGM110 Module and the Chip Select to Port D Bit 7. GPIO pinout, interfaces and alternative locations are described in the WGM110 Wi-Fi Module Data Sheet, hardware configuration in the UG161: WGM110 Wi-Fi Module Configuration User's Guide and related commands in detail in the WGM110 API Reference Manual. The connection between the microSD card slot and the WGM110 Module are shown below: PD0 (USART1_TX) CMD_MOSI PD1 (USART1_RX) DAT0_MISO PD2 (USART1_CLK) CLK PD7 (GPIO) CD_DAT3_CS PD6 (GPIO) DETECT microSD Card Connector WGM110 Figure 4.1. Connection between Radio Board microSD Card Slot and WGM110 Module silabs.com | Smart. Connected. Energy-friendly. Rev. 1.01 | 4 BRD4320A Reference Manual USB Connector 5. USB Connector BRD4320A contains a micro USB connector which is connected directly to the Wizard Gecko WGM110 Wi-Fi Module's USB port. This USB connector may be used in SW application tests as an interface between the Module and external devices such as a PC and/or simply to provide power to the Module. This is a useful feature since it allows the Module to be powered externally while the WSTK main board can be switched completely off. The radio board contains a voltage regulator and a transisor switch that automatically connects the regulated supply to the module power supply. The power select slide switch on the WSTK Mainboard should be set to USB or BAT to avoid conflict with the Mainboard power supply when using the USB connector. Note: Software configuration details for using the USB connector of the Radio Board are described in the "UG161: WGM110 Wi-Fi Module Configuration User's Guide". CHARACTERISTICS Supported USB standards: USB Full Speed USB connector type: micro USB (female) Maximum data transfer speed: 12 Mb/s. The connection between the USB connector and the WGM110 Module are shown below: D- PF10 (USB_DM) D+ PF11 (USB_DP) VBUS USB_VBUS USB micro-B Connector USB_VREGI USB_VREGO WGM110 1uF 4.7uF Figure 5.1. Connection between the Radio Board USB Connector and WGM110 Module silabs.com | Smart. Connected. Energy-friendly. Rev. 1.01 | 5 BRD4320A Reference Manual Mechanical Details 6. Mechanical Details 40 mm The Wizard Gecko WGM110 Wi-Fi Module Radio Board is illustrated in the figures below. 40 mm 5 mm 24 mm Figure 6.1. BRD4320A Top View 20 mm Figure 6.2. BRD4320A Bottom View silabs.com | Smart. Connected. Energy-friendly. Rev. 1.01 | 6 BRD4320A Reference Manual Radio Board Revision History and Errata 7. Radio Board Revision History and Errata 7.1 Revision History The kit revision can be found printed on the back side of the Radio Board. Table 7.1. Radio Board Revision History Kit Revision Released Description A01 22.02.2016 Initial kit release. 7.2 Errata There are no known errata at present. silabs.com | Smart. Connected. Energy-friendly. Rev. 1.01 | 7 BRD4320A Reference Manual Document Revision History 8. Document Revision History Revision 1.01 2016-05-23 Full production release with Module certifications. Revision 1.00 2016-02-22 Initial document release. silabs.com | Smart. Connected. Energy-friendly. Rev. 1.01 | 8 Table of Contents 1. BRD4320A Radio Board Description . . . . . . . . . . . . . . . . . . . . . . 1 2. Radio Board Key Features . . . . . . . . . . . . . . . . . . . . . . . . . . 2 3. BRD4320A Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 3.1 BRD4320A Connector Pin Associations . . . . . . . . . . . . . . . . . . . . . 3 3.2 BRD4320A Connector Type . . . . . . . . . . . . . . . . . . . . . 3 . . . . 4. MicroSD Card Slot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 5. USB Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 6. Mechanical Details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 7. Radio Board Revision History and Errata . . . . . . . . . . . . . . . . . . . . . 7 7.1 Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 7.2 Errata . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 . . . . 8. Document Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Table of Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Table of Contents 9 Simplicity Studio One-click access to MCU and wireless tools, documentation, software, source code libraries & more. Available for Windows, Mac and Linux! IoT Portfolio www.silabs.com/IoT SW/HW www.silabs.com/simplicity Quality www.silabs.com/quality Support and Community community.silabs.com Disclaimer Silicon Laboratories intends to provide customers with the latest, accurate, and in-depth documentation of all peripherals and modules available for system and software implementers using or intending to use the Silicon Laboratories products. Characterization data, available modules and peripherals, memory sizes and memory addresses refer to each specific device, and "Typical" parameters provided can and do vary in different applications. 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