Silicon Laboratories EZR32WG, User Manual

Page 1: ...g Multiplexer supporting external hardware as well as radio board Silicon Labs Si7021 Relative Humidity and Temperature sensor Ultra Low power 128x128 pixel Memory LCD LEDs Pushbuttons Reset button 20pin 2 54mm header for expansion boards Breakout pads for direct access to all radio I O pins Power sources including USB and CR2032 coin cell holder ORDERING INFO SLWSTK6222A RADIO BOARD FEATURES EZR3...

Page 2: ...nector 8 5 5 Si7021 Relative Humidity and Temperature Sensor 9 6 Advanced Energy Monitor 10 6 1 Introduction 10 6 2 Advanced Energy Monitor Theory of operation 10 6 3 AEM accuracy and performance 11 6 4 Usage 11 7 Board Controller 12 7 1 VCOM 12 8 Board Support Package 13 8 1 Application Programming Interface 13 8 2 Example Applications 13 8 3 How to include in your own applications 13 9 Connector...

Page 3: ... 10 4 Keil MDK ARM 21 11 Kit Manager and Upgrades 22 11 1 Kit Manager Operation 22 11 2 Firmware Upgrades 22 12 Schematics Assembly Drawings and BOM 23 13 Kit Revision History and Errata 24 13 1 Revision History 24 13 2 Errata 24 14 Document Revision History 25 EZR32WG 915MHz Wireless Starter Kit Table of Contents iii ...

Page 4: ...sed towards an external target instead of the included radio board To further enhance the WSTK usabili ty the WSTK Mainboard contains sensors and peripherals demonstrating some of the Wireless MCU s many capabilities 1 2 Kit Content The following items are contained in the box 2x BRD4001A Wireless Starter Kit Mainboards 2x BRD4503B EZR32 Wonder Gecko 915 MHz WSTK Radio Boards 2x 915 MHz antennas w...

Page 5: ...n overview of the EZR32WG 915MHz Wireless Starter Kit is shown in the figure below Figure 2 1 WSTK6222 Block Diagram EZR32WG 915MHz Wireless Starter Kit Kit Block Diagram silabs com Smart Connected Energy friendly Rev 1 2 2 ...

Page 6: ...Monitoring Figure 3 1 WSTK6222 hardware layout The kit consists of two BRD4001 Wireless Starter Kit Mainboards paired with two BRD4503B plug in radio boards with the following specifications Wireless MCU EZR32WG330F256R63G CPU core ARM Cortex M4 Flash memory 256 kB RAM 32 kB Sub GHz transceiver integrated in the Wireless MCU EZRadioPRO Operation frequency 915 MHz Transmit power 20 dBm Single anten...

Page 7: ...application where the MCU acts as a bus powered device Finally with the switch in the BAT position a 20mm coin cell battery in the CR2032 socket can be used to power the device Note The Advanced Energy Monitor can only measure the current consumption of the EZR32 when the power selection switch is in the DBG position 4 2 Board Controller Power The Board Controller is responsible for important feat...

Page 8: ...Board Controller Reset The Board Controller can be reset by removing and re inserting the J Link USB cable Removing the Board Controller USB cable will not reset the EZR32 but whenever the Board Controller is powered up again it will issue a RESET to the EZR32 through the on board debugger EZR32WG 915MHz Wireless Starter Kit Power Supply and Reset silabs com Smart Connected Energy friendly Rev 1 2...

Page 9: ... LEDs The kit has two user push buttons marked PB0 and PB1 They are connected to the EZR32 and are debounced by RC filters with a time constant of 1ms The buttons are connected to pins PC8 and PC9 In addition to the two push buttons the kit also features two yellow LEDs marked LED0 and LED1 that are controlled by GPIO pins on the EZR32 The LEDs are connected to pins PC10 and PC11 in an active high...

Page 10: ...M_DISP_MOSI PD7 when EFM_DISP_CS PE11 is high and the clock is sent on EFM_DISP_SCLK PC15 The maximum sup ported clock speed is 1 1 MHz EFM_DISP_COM PE10 is the COM Inversion line It must be pulsed periodically to prevent static build up in the display itself Please refer to the display application information for details on driving the display http www sharpmemorylcd com 1 28 inch memory lcd html...

Page 11: ...Radio Board supports operation in USB Device mode only even if the target radio also supports USB Host mode Figure 5 3 Radio Board USB Connector on page 8 shows how the USB lines are connected to the EZR32 Figure 5 3 Radio Board USB Connector EZR32WG 915MHz Wireless Starter Kit Peripherals silabs com Smart Connected Energy friendly Rev 1 2 8 ...

Page 12: ...precision sensing over a wider range and lower power consumption The optional factory installed cover offers a low profile convenient means of protecting the sensor during assembly e g reflow soldering and throughout the life of the product excluding liquids hydrophobic oleophobic and particulates The Si7021 offers an accurate low power factory calibrated digital solution ideal for measuring humid...

Page 13: ...ple gain stages and signal processing within the kit s board controller be fore the current sense signal is read by a host computer for display and or storage The current sense amplifier measures the voltage drop over a small series resistor and the gain stage further amplifies this voltage with two different gain settings to obtain two current ranges The transition between these two ranges occurs...

Page 14: ... small as 100 nA The AEM current sampling rate is 10000 Hz Note The AEM circuitry only works when the kit is powered and the power switch is in the AEM DBG position 6 4 Usage The AEM Advanced Energy Monitor data is collected by the board controller and can be displayed by the Energy Profiler available through Simplicity Studio By using the Energy Profiler current consumption and voltage can be mea...

Page 15: ...ontroller is only available when USB power is connected 7 1 VCOM When enabling virtual serial communication VCOM the board controller makes communication possible on the following interfaces Virtual USB COM port using a CDC driver provided that the kit is connected to a host computer TCP IP by connecting to the Wireless Starter Kit on port 4901 using a telnet client Expansion header when enabled b...

Page 16: ... ing the BSP with corresponding project Makefiles for supported IDEs The examples folder also contains examples showing how to use the different peripherals on the WSTK6222 8 3 How to include in your own applications The easiest way to include the BSP in your application is to create it using the Simplicity IDE Alternatively to base your work on the example application that uses the BSP The follow...

Page 17: ... 8 P 2 1 P 2 0 G N D G N D P 2 3 P 2 2 V R F V R F 3 V 3 3 V 3 Figure 9 1 Connector layout 9 1 Radio Board breakout pads Most of the EZR32 s pins are routed out to breakout pads at the top and bottom edges of the Wireless Starter Kit Mainboard A 2 54mm pitch pin header can be soldered on for easy access to the pins The figure below shows you how the pins of the EZR32 Wonder Gecko Radio Board BRD45...

Page 18: ...SDWIO JTAG TMS or Serial Wire Data I O 4 TCK SWCLK JTAG TCK or Serial Wire clock 6 TDO SWO JTAG TDO or Serial Wire Output 8 TDI JTAG data in 10 RESET Target MCU reset 12 TRACECLK ETM Trace Clock 14 TRACEDATA 0 ETM Trace Data 0 16 TRACEDATA 1 ETM Trace Data 1 18 TRACEDATA 2 ETM Trace Data 2 20 TRACEDATA 3 ETM Trace Data 3 9 Cable detect This signal must be pulled to ground by the external debugger ...

Page 19: ...ments while the 3V3 and 5V voltage pins are not To moni tor the current consumption of an external target with the AEM unplug the WSTK Radio Board from the WSTK Mainboard to avoid that the Radio Board current consumption is added to the measurements Table 9 2 Simplicity Header pin descriptions Pin number s Function Note 1 VMCU 3 3 V power rail monitored by the AEM 3 3V3 3 3 V power rail 5 5V 5 V p...

Page 20: ...functions that are available on the Expansion Header are listed in table Table 9 3 Some peripheral func tions available on Expansion Header on page 17 Figure 9 5 Expansion Header Table 9 3 Some peripheral functions available on Expansion Header Peripheral Peripheral pin MCU Pin EXP Header pin number USART SPI USART1_TX PD0 4 USART1_RX PD1 6 USART1_CLK PD2 8 USART1_CS PD3 10 I2C I2C1_SDA PC4 7 I2C1...

Page 21: ..._P1 PD6 16 OPAMP_OUT1 PB12 13 OPAMP_N2 PD3 10 OPAMP_P2 PD4 12 OPAMP_OUT2 PD5 PD0 14 4 Timer Compare Capture TIMER0_CC0 PD1 6 TIMER0_CC1 PD2 8 TIMER0_CC2 PD3 10 TIMER1_CC0 PD6 16 TIMER1_CC1 PD7 17 TIMER1_CC2 PB11 11 Low Energy Timer LETIM0_OUT0 PD6 PB11 PC4 16 11 7 LETIM0_OUT1 PD7 PB12 PC5 17 13 9 Low Energy Sensor Interface LESENSE LES_CH0 PC0 3 LES_CH3 PC3 5 LES_CH4 PC4 7 LES_CH5 PC5 9 LES_CH6 PC...

Page 22: ... PCNT2_S1IN PD1 6 Peripheral Reflex System PRS PRS_CH2 PC0 3 Note Please note that this table only sums up some of the alternate functions available on the expansion header Consult the EZR32WG330F256R63G datasheet for a complete list of alternate functions EZR32WG 915MHz Wireless Starter Kit Connectors silabs com Smart Connected Energy friendly Rev 1 2 19 ...

Page 23: ...t the desired example or demo from the list and click Next 7 Click Finish 8 Click the Debug button in the IDE to build and download the code to the hardware 9 Follow the instructions at the top of the main example file to set up the hardware as needed 10 Click the Resume button to start running the example 10 1 IAR Embedded Workbench for ARM An evaluation version of IAR Embedded Workbench for ARM ...

Page 24: ...oad details for CrossWorks for ARM You will find CrossWorks project files in the rowley subfolder of each project 10 4 Keil MDK ARM See the quick start guide for download details for evaluation versions of Keil MDK ARM The arm subfolder in each project contains project files for MDK ARM Please see the MDK ARM documentation for usage details EZR32WG 915MHz Wireless Starter Kit Integrated Developmen...

Page 25: ...le other will work with a generic J Link debugger connected Figure 11 1 Kit Manager 11 2 Firmware Upgrades Upgrading the kit firmware is done through Simplicity Studio Simplicity Studio will automatically check for new updates on startup You can also use the Kit Manager for manual upgrades Click the Browse button in the Update Kit section to select the correct file ending in emz Then click the Ins...

Page 26: ... materials BOM for the EZR32WG 915MHz Wireless Starter Kit board are available through Simplicity Studio when the kit documentation package has been installed EZR32WG 915MHz Wireless Starter Kit Schematics Assembly Drawings and BOM silabs com Smart Connected Energy friendly Rev 1 2 23 ...

Page 27: ... Revision History Kit Revision Released Description A01 02 02 2015 Initial kit release 13 2 Errata Table 13 2 Kit Errata Kit Revision Problem Description A00 A01 Radio board errata This kit revision includes a radio board with known errata See BRD4503B user guide for details EZR32WG 915MHz Wireless Starter Kit Kit Revision History and Errata silabs com Smart Connected Energy friendly Rev 1 2 24 ...

Page 28: ...fective Date Change Description 1 2 19 03 2015 Kit Errata added 1 1 23 02 2015 Minor text revision 1 00 19 02 2015 Major updates 0 10 23 12 2014 Initial document version EZR32WG 915MHz Wireless Starter Kit Document Revision History silabs com Smart Connected Energy friendly Rev 1 2 25 ...

Page 29: ...lth which if it fails can be reasonably expected to result in significant personal injury or death Silicon Laboratories products are generally not intended for military applications Silicon Laboratories products shall under no circumstances be used in weapons of mass destruction including but not limited to nuclear biological or chemical weapons or missiles capable of delivering such weapons Trade...