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Maxim Integrated MAXREFDES101, Руководство пользователя

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Maxim Integrated 

Page 7 of 39 

System Diagram 

 

Figure 3. MAXREFDES101# system diagram. 

 

 

Содержание MAXREFDES101

Страница 1: ...paring and running the MAXREFDES101 Health Sensor Platform This platform uses several biosensors power management ICs PMIC and microcontrollers from Maxim Integrated in a wrist worn design that allows...

Страница 2: ...pdating the Sensor Hub Algorithm 13 Using the PC GUI 16 USB Connection 16 BLE Connection 19 Starting the ECG Measurement 20 Starting the Temperature Measurement 22 Starting the PPG Measurement 23 Inst...

Страница 3: ...embedded heart rate algorithm to the MAX32664 15 Figure 14 USB connection to PC using a USB Type C cable left and Pico adapter board right 16 Figure 15 Scan for devices 17 Figure 16 Successful connec...

Страница 4: ...nyway 33 Figure 36 mbed Serial Port in Device Manager 33 Figure 37 MSD connection to PC using USB Type C cable left and Pico adapter board right 34 Figure 38 Flash Log Parser 35 Figure 39 Log file PPG...

Страница 5: ...Maxim Integrated Page 5 of 39 Detailed Hardware Description Figure 1 MAXREFDES101 wearable form factor in detail Figure 2 MAXREFDES101 exploded view...

Страница 6: ...during a firmware upgrade for the micro board Watch enclosure Battery 1 USB Micro B cable for firmware upgrade of the micro board 1 USB Type C cable for PC communication with the micro board or chargi...

Страница 7: ...Maxim Integrated Page 7 of 39 System Diagram Figure 3 MAXREFDES101 system diagram...

Страница 8: ...The MAXDAP TYPE C Pico adapter board has two USB Micro B connectors The top connector next to the push button is used for updating the firmware of the micro board The left connector next to the DEVIC...

Страница 9: ...mode temperature mode and info mode To cycle between modes press and release button 2 or button 3 Figure 5 Watch display modes Note There is no display in ECG mode because the noise from the display...

Страница 10: ...es at the center of the back of the watch Figure 6 PPG measurement ECG Measurement To take an ECG measurement wear the watch on the wrist and make sure the skin has direct contact with electrodes 2 an...

Страница 11: ...REFDES101 Design Resources tab Note The software package includes the latest firmware algorithm and the corresponding Windows or Android application All three must be updated to ensure compatibility 2...

Страница 12: ...lgorithm and the corresponding Windows or Android application All three must be updated to ensure compatibility 2 Insert the Pico adapter board into the USB Type C connector of the watch This establis...

Страница 13: ...r Hub algorithm can be updated with the PC GUI by performing the following steps 1 Download and extract the Eval Package from the Software section on the MAXREFDES101 Design Resources tab Note The sof...

Страница 14: ...PPG Figure 12 Maxim DeviceStudio connected devices 5 Go to Device Tab Update SmartSensor_MAX32660 Software Update Firmware and select the msbl file from the extracted Eval Package 6 The embedded hear...

Страница 15: ...Maxim Integrated Page 15 of 39 Figure 13 Upload embedded heart rate algorithm to the MAX32664...

Страница 16: ...h USB or Bluetooth Low Energy BLE The Windows 7 PC GUI only supports connection to the MAXREFDES101 through USB USB Connection 1 Connect the watch to the PC with a USB Type C cable or with the Pico ad...

Страница 17: ...Maxim Integrated Page 17 of 39 2 Under Scan Mode select Serial over USB Click Scan Figure 15 Scan for devices...

Страница 18: ...Maxim Integrated Page 18 of 39 3 Verify that Connected Devices lists ECG TEMP and PPG Figure 16 Successful connection over USB...

Страница 19: ...ct Windows BLE Click Scan 2 Select the device with the MAC address that matches the MAC address listed on the watch info screen Click Connect Figure 17 BLE device selection 3 Verify that Connected Dev...

Страница 20: ...e on board flash Data is not streamed to the GUI while Flash Logging is enabled 4 Select the desired filters 5 Adjust the ECG parameters The default parameters can be used for the first time Refer to...

Страница 21: ...Maxim Integrated Page 21 of 39 Figure 20 ECG measurement sample...

Страница 22: ...Kit 2 Check the box for Log to File to save the data 3 Check the box for Log to Flash to save the data to the on board flash Data is not streamed to the GUI while Flash Logging is enabled 4 Select the...

Страница 23: ...for Accelerometer Chart to plot the accelerometer data 5 Check the box for Algorithm Data to see the algorithm data HR bpm HR Confidence and Activity 6 Select Raw mode to manually set the AFE setting...

Страница 24: ...Maxim Integrated Page 24 of 39 Figure 23 PPG measurement sample...

Страница 25: ...sources other than the Google Play Store 2 Download the Android Eval Pack using the web browser on the Android device from the Software section on the MAXREFDES101 Design Resources tab 3 Open Download...

Страница 26: ...d and open the Android application Select Scan to detect nearby devices Figure 25 Available Devices list 2 Tap the device with the MAC address that matches the MAC address listed on the watch info scr...

Страница 27: ...ner and check Log to File to save data to a file 4 Tap the button in the top right corner and check Log to Flash to save data to the on board flash Data is not streamed to the app while Flash Logging...

Страница 28: ...d select YES to use the default setting 7 Wear the watch on the wrist and make sure the skin has direct contact with electrodes 2 and 3 Then place a finger from the opposite hand on electrode 1 8 Tap...

Страница 29: ...save data to a file 3 Tap the button in the top right corner and check Log to Flash to save data to the on board flash Data is not streamed to the app while Flash Logging is enabled 4 Wear the watch...

Страница 30: ...ht corner and check Log to Flash to save data to the on board flash Data is not streamed to the app while Flash Logging is enabled 4 Tap the Celsius or Fahrenheit radio button to select the units 5 Ta...

Страница 31: ...Maxim Integrated Page 31 of 39 Figure 31 Android app temperature measurement sample...

Страница 32: ...Design Resources tab 2 Extract the zip file to a known location 3 Open Device Manager Device Manager can be found in the Control Panel 4 If manual driver installation is needed the MAXREFDES101 appea...

Страница 33: ...gure 34 Browse to extracted release package 8 When prompted by the Windows Security window click Install this driver software anyway Figure 35 Choose Install this driver software anyway 9 After the dr...

Страница 34: ...watch is still tethered to the PC or Android device flash logging can be stopped by pressing the Stop button in the GUI or app Downloading the Log File After flash logging is complete download and par...

Страница 35: ...o be parsed to convert them to a readable csv format 6 In the PC GUI open the Flash Log Parser from the Tools menu 7 Select the maximlog file choose an output folder and click PARSE A csv file is gene...

Страница 36: ...Axis Acceleration g Acceleration in z axis in unit of g Heart Rate bpm Heart rate in unit of beats per min HR confidence Heart rate algorithm extraction confidence a threshold confidence 85 is recomm...

Страница 37: ...amples are dropped during Bluetooth transmission Raw ECG ECG data count Filtered ECG Filtered ECG data count defined by user s choice of filter setting ETAG 2 0 ECG FIFO data tag see table 48 in MAX30...

Страница 38: ...initions TEMP_ csv COLUMN DESCRIPTION Time Time stamp Sample count Data index ranging from 0 to 255 for monitoring if samples are dropped during Bluetooth transmission Temperature C Temperature in uni...

Страница 39: ...ons or technology described is intended to suggest possible uses and may be superseded MAXIM INTEGRATED PRODUCTS INC DOES NOT ASSUME LIABILITY FOR OR PROVIDE A REPRESENTATION OF ACCURACY OF THE INFORM...

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