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DB3672B Demo Board User Guide

MEMSIC Semiconductor (Tianjin) Co., Ltd.

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Summary of Contents for DB3672B

Page 1: ...DB3672B Demo Board User Guide MEMSIC Semiconductor Tianjin Co Ltd...

Page 2: ...1 3 mm CSP and MC3635 1 6 x 1 6 mm LGA ultra low power 3 axis accelerometers by providing g force data to 32 bit ARM Cortex M4 Motion sensing algorithms are performed in firmware on the MCU to demons...

Page 3: ...ions 6 Application Flow 6 Firmware Update Tool 12 Current Measurement 14 Schematics 16 EV3672 EV3635 EVAL boards install 19 Order a board from www mouser com 19 GET quick start guide from MEMSIC 19 Pl...

Page 4: ...sh storage and 256 KB SRAM 4 0 96 128x64 monochrome OLED U11 using ssd1306 controller 5 CP210x USB to UART interface J1 chip for connection to PC 6 Four LEDs 1 Application controllable Red D3 Green D4...

Page 5: ...MEMSIC DB3672B APS 045 0031 v1 1 Page 5 of 22 Formal release date 2020 08 17 BT1 CR2032 J4 MC3635 PWR measurement connector J5 MC3672 PWR measurement connector Figure 4 Components bottom view...

Page 6: ...0 32 v1 0 0 Single Tap 95 Double Tap 90 Triple Tap Shake 95 1 3 0 23 v1 0 0 2 or more back and forth shakes Freefall 99 0 6 0 16 v1 0 0 2 cm drop Tilt Angle N A 3 6 6 73 v1 0 0 Pitch Roll Face Side N...

Page 7: ...quent feature is shown This button is used to toggle between different demo modes First feature is Tap mode Tap window waiting for tapping on the screen When screen is tapped once Single Tapped is sho...

Page 8: ...8 Shake Mode Freefall Mode Freefall mode window waiting for freefall event When device dropped over 10 cm height freefall event is shown on screen and Green LED D5 is ON for 2 seconds Figure 9 Freefa...

Page 9: ...e Side Mode Jump Rope Mode Jump mode waiting for Jump Jump Rope mode track number of Jumps Figure 12 Jump Rope Mode Activity Mode In this mode DB3672B acts like a pedometer which measures number of st...

Page 10: ...y Mode Sniff Mode Sniff mode is a unique feature in MC3672 MC3635 to have sensor enter an ultra low power state 0 4uA and can be activated when significant motion is detected Sniff mode waiting for mo...

Page 11: ...IC DB3672B APS 045 0031 v1 1 Page 11 of 22 Formal release date 2020 08 17 Figure 16 Demo application flow Raw Data Tap s Shake Free Fall Tilt Face Side Activity Detect Jump Rope Sniff Power Switch QR...

Page 12: ...show up in Device Manager as COM Port See Image below 4 Unzip MEMSIC_DB3672B_tools v1 0 0 zip file 5 Click to open DB3672_flash_tool exe application from package Do NOT copy it outside of the folder 6...

Page 13: ...MEMSIC DB3672B APS 045 0031 v1 1 Page 13 of 22 Formal release date 2020 08 17 Figure 18 Serial Port Not Detected Figure 19 DB3672 FW flash tool...

Page 14: ...NT MEASUREMENT DB3672B board has a pair of jumpers for measuring current consumption on MEMSIC accelerometers U9 U10 J4 MC3635 and J5 MC3672 jumper can be used to measure current on sensor depicted ul...

Page 15: ...1 1 Page 15 of 22 Formal release date 2020 08 17 Figure 21 Sniff current at 6Hz Figure 22 Wake supply current ultra low power 25Hz Sensor Category Sniff Current 6Hz Wake Current ULP 25Hz MC3672 0 4 uA...

Page 16: ...MEMSIC DB3672B APS 045 0031 v1 1 Page 16 of 22 Formal release date 2020 08 17 SCHEMATICS...

Page 17: ...MEMSIC DB3672B APS 045 0031 v1 1 Page 17 of 22 Formal release date 2020 08 17...

Page 18: ...MEMSIC DB3672B APS 045 0031 v1 1 Page 18 of 22 Formal release date 2020 08 17...

Page 19: ...C DB3672B APS 045 0031 v1 1 Page 19 of 22 Formal release date 2020 08 17 EV3672 EV3635 EVAL BOARDS INSTALL ORDER A BOARD FROM WWW MOUSER COM GET QUICK START GUIDE FROM MEMSIC PLUG EV36XXA INTO A BREAD...

Page 20: ...MEMSIC DB3672B APS 045 0031 v1 1 Page 20 of 22 Formal release date 2020 08 17 CONNECT TO PROCESSOR ARDUINO VIA SPI OR I2C GET DRIVERS FROM MEMSIC...

Page 21: ...MEMSIC DB3672B APS 045 0031 v1 1 Page 21 of 22 Formal release date 2020 08 17 LOAD AND RUN MC36XX DEMO...

Page 22: ...v1 1 Page 22 of 22 Formal release date 2020 08 17 REVISION HISTORY Date Revision Description 2019 06 18 APS 045 0031v1 0 First release 2020 08 17 APS 045 0031v1 1 Change to MEMSIC format based on the...

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