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5. Schematics, Assembly Drawings, and BOM

Schematics, assembly drawings, and bill of materials (BOM) are available through

Simplicity Studio

when the kit documentation pack-

age has been installed. They are also available from the Silicon Labs website and kit page.

UG407: WFM200S Wi-Fi

Expansion Kit User's Guide

Schematics, Assembly Drawings, and BOM

silabs.com

| Building a more connected world.

Rev. 1.0 | 16

Содержание WFM200S

Страница 1: ...i integration into any em bedded system The kit easily integrates and brings Wi Fi connectivity to a compatible Silicon Labs MCU Starter Kit through the EXP header The WFM200S Wi Fi Expansion Kit has also been designed after the Raspberry Pi Hardware Attached on Top HAT board specifi cation allowing the WFM200S Wi Fi Expansion Kit to connect to a Raspberry Pi WFM200S EXPANSION BOARD FEATURES Selec...

Страница 2: ...der Pinout 10 4 2 Raspberry Pi Connector 11 4 2 1 Raspberry Pi Connector Pinout 12 4 3 External FEM Connector 13 4 3 1 External FEM Connector Pinout 13 4 4 PTA Connector 14 4 4 1 PTA Connector Pinout 14 4 5 Secondary RF Connector 14 4 6 Power Supply 15 5 Schematics Assembly Drawings and BOM 16 6 Kit Revision History 17 6 1 SLEXP8023A Revision History 17 6 2 SLEXP8023C Revision History 17 7 Documen...

Страница 3: ...Raspberry Pi hardware attached on top HAT connector SDIO support is available only with selected hosts Figures 1 1 and 1 2 shows the kit connected to a Silicon Labs MCU STK through the Expansion Header and a Raspberry Pi respec tively Figure 1 1 WFM200S Wi Fi Expansion Kit Connected to a Silicon Labs EFM32GG11 MCU STK UG407 WFM200S Wi Fi Expansion Kit User s Guide Introduction silabs com Building ...

Страница 4: ...h differs in what s included in the box SLEXP8023A BRD8023A WFM200S Wi Fi EXP Board 8 GB Micro SD card with software image for Raspberry Pi 2 SLEXP8023C BRD8023A WFM200S Wi Fi EXP Board 8 GB Micro SD card with software image for Raspberry Pi 2 Raspberry Pi 2 Model B Single Board Computer Raspberry Pi Power Supply 5 1 V 2 5 A UG407 WFM200S Wi Fi Expansion Kit User s Guide Introduction silabs com Bu...

Страница 5: ...rry Pi connector On bottom side Current consumption measurement header Not mounted WFM200S Wi Fi Expansion Board Host interface select switch Secondary RF output coaxial connector TX RX Activity LED External FEM header Not mounted PTA header Not mounted Reset button Figure 2 1 WFM200S Wi Fi Expansion Kit Hardware Layout UG407 WFM200S Wi Fi Expansion Kit User s Guide Hardware Overview silabs com Bu...

Страница 6: ...on switch can be read but not controlled by the kit mcu through a GPIO pin The WFM200S Wi Fi Expansion Kit incorporates a set of multiplexer circuits which allows the user to use the same kit for evaluating the WFM200S in both applications requiring SPI or SDIO connectivity to the host These circuits will normally not be needed in an end user application since in most cases the interface to use wi...

Страница 7: ...the WFM200S U114 is an open drain active low output reset monitor which with the installed capacitor connected to the CD pin keeps NCP_RE SETn tied to ground for about 1 ms after VMCU_NCP has exceeded the threshold voltage of 0 9 V U115 is a tri state output buffer with an active low output enable signal connected to NCP_RESETn which pulls the CD pin of U116 low while NCP_RESETn is low U116 is a p...

Страница 8: ...nted EXP Header Raspberry Pi Connector Bottom side External FEM connector Not Mounted PTA connector Not Mounted Secondary RF output connector Current consumption header Not Mounted Figure 4 1 WFM200S Wi Fi Expansion Kit Connector Layout UG407 WFM200S Wi Fi Expansion Kit User s Guide Connectors silabs com Building a more connected world Rev 1 0 8 ...

Страница 9: ...al functions that are available 1 2 4 8 6 10 3 5 9 7 12 13 14 11 15 16 17 18 20 19 VMCU SPI_MOSI SDIO_DAT1 SPI_MISO SDIO_DAT0 SPI_SCLK SDIO_CMD SPI_CS SDIO_CLK SPI_WIRQ SDIO_DAT3 SDIO_DAT2 Not Connected NC 5V 3V3 GND GPIO_WUP Not Connected NC RESETn HIF_SEL_CTRL Not Connected NC Not Connected NC Not Connected NC BOARD_ID_SDA BOARD_ID_SCL Reserved Board Identification WFM200S I O Pin Figure 4 2 Exp...

Страница 10: ...Q SDIO_DAT3 14 SDIO_DAT2 16 Not Connected 18 Board 5 V supply Used to supply LDO regulator 20 Board 3V3 supply Only used for board identification 1 Ground 3 GPIO WFM200S WUP 5 Not Connected 7 GPIO WFM200S RESETn 9 GPIO HIF_SEL_CTRL read access 11 Not Connected 13 Not Connected 15 Not Connected 17 Identification of expansion boards 19 Identification of expansion boards UG407 WFM200S Wi Fi Expansion...

Страница 11: ...IO_DAT2 Not Connected NC RESETn GPIO_WIRQ Not Connected NC RPI_ID_SD GND SPI_SCLK SPI_MISO Not Connected NC Not Connected NC SPI_WIRQ GND GPIO_WUP GND RPI_ID_SC Not Connected NC SDIO_DAT1 SPI_CS SPI_MOSI 3V3 SDIO_CLK SDIO_DAT3 Not Connected NC GND Not Connected NC Not Connected NC Not Connected NC 3V3 GND SDIO_DAT0 SDIO_CMD GND Not Connected NC GPIO_FEM_5 GPIO_FEM_6 GND 5V 5V 40 39 37 33 35 31 38 ...

Страница 12: ...onnected 8 GPIO WFM200S FEM_6 BCM 14 9 GND Ground 10 GPIO WFM200S FEM_5 BCM 15 11 Not Connected 12 Not Connected 13 SDIO_DAT3 BCM 27 14 GND Ground 15 SDIO_CLK BCM 22 16 SDIO_CMD BCM 23 17 3V3 3v3 Power 18 SDIO_DAT0 BCM 24 19 SPI_MOSI BCM 10 20 GND Ground 21 SPI_MISO BCM 9 22 SDIO_DAT1 BCM 25 23 SPI_SCLK BCM 11 24 SPI_CS BCM 8 25 GND Ground 26 Not Connected 27 ID EEPROM SDA BCM 0 28 ID EEPROM SCL B...

Страница 13: ...e FEM_5 signal By default to optimize power consumption TX RX activity LED is not enabled PDS sections PROG_PINS_CFG and FEM_CFG should be updated to enable this functionality The pinout of the connector is illustrated in the figure below GND FEM_PDET FEM_6 FEM_5 VMCU_NCP FEM_4 FEM_3 VMCU_NCP 9 8 7 10 6 5 4 3 1 2 FEM_2 FEM_1 Figure 4 4 External FEM Connector 4 3 1 External FEM Connector Pinout The...

Страница 14: ...Table 4 4 PTA Connector Pin Descriptions Pin Number WFM200S Connection 1 PTA_RF_ACT REQUEST 2 PTA_TX_CONF GRANT 3 PTA_FREQ RHO 4 PTA_STATUS PRIORITY 5 GND 4 5 Secondary RF Connector The WFM200S secondary RF output is exposed on the WFM200S Wi Fi Expansion Kit through a Hirose u FL coaxial connector For connecting the secondary RF output to an RF measurement instrument 50 ohms resistor R641 shall b...

Страница 15: ...e WFM200S Wi Fi Expansion Kit is used to select between Low Power AEM mode and High Power LDO mode When the switch is set to Low Power AEM mode the WFM200S Wi Fi Transceiver Module is connected to the VMCU net on the Expansion Header When the switch is set to High Power LDO mode the WFM200S Wi Fi Transceiver Module is connec ted to the output of the LDO For applications requiring high power consum...

Страница 16: ...e available through Simplicity Studio when the kit documentation pack age has been installed They are also available from the Silicon Labs website and kit page UG407 WFM200S Wi Fi Expansion Kit User s Guide Schematics Assembly Drawings and BOM silabs com Building a more connected world Rev 1 0 16 ...

Страница 17: ...1940000224 01 11 19 A01 Figure 6 1 Kit Label 6 1 SLEXP8023A Revision History Kit Revision Released Description A01 2019 11 01 Initial release 6 2 SLEXP8023C Revision History Kit Revision Released Description A00 2019 11 01 Initial release UG407 WFM200S Wi Fi Expansion Kit User s Guide Kit Revision History silabs com Building a more connected world Rev 1 0 17 ...

Страница 18: ... Document Revision History Revision 1 0 2019 11 01 Initial document revision UG407 WFM200S Wi Fi Expansion Kit User s Guide Document Revision History silabs com Building a more connected world Rev 1 0 18 ...

Страница 19: ...ts The products are not designed or authorized to be used within any FDA Class III devices applications for which FDA premarket approval is required or Life Support Systems without the specific written consent of Silicon Labs A Life Support System is any product or system intended to support or sustain life and or health which if it fails can be reasonably expected to result in significant persona...

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