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Texas Instruments TI Designs Reference

Texas Instruments TI Designs Reference

Wireless heart rate monitor
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TI Designs
Wireless Heart Rate Monitor Reference Design
TI Designs
TI Designs provide the foundation that you need
including methodology, testing and design files to
quickly evaluate and customize and system. TI
Designs help you accelerate your time to market.
Design Resources
Tool Folder Containing Design Files
TIDA-00096
ADS1293
Product Folder
CC2541
Product Folder
TPS61220
Product Folder
Small Programmer and Debugger for
CC Debugger
Low-Power RF System-on-Chips
An IMPORTANT NOTICE at the end of this TI reference design addresses authorized use, intellectual property matters and other
important disclaimers and information.
WebBench is a trademark of Texas Instruments.
All other trademarks are the property of their respective owners.
TIDU195A – January 2014 – Revised July 2014
Submit Documentation Feedback
Design Features
The Wireless Heart Rate Monitor with Bluetooth® low-
energy (BLE) is a reference design for customers to
develop end-products for battery-powered 3-channel
health and fitness electrocardiogram (ECG)
applications.
•
Supports 5-Lead ECG applications
•
Easily monitor heart rate data through an iOS
Mobile Application
•
Powered by a Lithium-ion battery
•
EMI filters integrated in the ADS1293 device reject
Interference from outside RF sources
•
Open-source Firmware and iOS application
enables quick time-to-market for customers
Featured Applications
•
Health and Fitness
Copyright © 2014, Texas Instruments Incorporated
Ajinder
Singh,
Natarajan Viswanathan
ASK Our Analog Experts
WebBench™ Calculator Tools
Wireless Heart Rate Monitor Reference Design
1

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Summary of Contents for Texas Instruments TI Designs

  • Page 1 Wireless Heart Rate Monitor Reference Design TI Designs Design Features TI Designs provide the foundation that you need The Wireless Heart Rate Monitor with Bluetooth® low- including methodology, testing and design files to energy (BLE) is a reference design for customers to quickly evaluate and customize and system.
  • Page 2 (DCK) measuring 2 mm × 2 mm to enable small circuit layout size. For the TPS61220 block diagram, see Figure Wireless Heart Rate Monitor Reference Design TIDU195A – January 2014 – Revised July 2014 Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated...
  • Page 3 – TPS6122x Low Input Voltage, 0.7V Boost Converter With 5.5μA Quiescent Current For more information on each of these devices, see the respective product folders at www.TI.com. TIDU195A – January 2014 – Revised July 2014 Wireless Heart Rate Monitor Reference Design Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated...
  • Page 4 Two differential or four single-ended inputs • SPI™-compatible interface • 3,5 mm × 3,5 mm × 0,9 mm QFN package Wireless Heart Rate Monitor Reference Design TIDU195A – January 2014 – Revised July 2014 Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated...
  • Page 5 (BLE LL TIMER) TIMER 3 (8-bit) RF_P RF_N TIMER 4 (8-bit) DIGITAL ANALOG MIXED Figure 3. CC2541 Block Diagram TIDU195A – January 2014 – Revised July 2014 Wireless Heart Rate Monitor Reference Design Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated...
  • Page 6 – Two I/O pins have LED Driving capabilities – Watchdog timer – Integrated high-performance comparator • Development Tools Wireless Heart Rate Monitor Reference Design TIDU195A – January 2014 – Revised July 2014 Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated...
  • Page 7 Network processor interface for applications running on an external microcontroller • BTool – Windows PC application for evaluation, development, and test TIDU195A – January 2014 – Revised July 2014 Wireless Heart Rate Monitor Reference Design Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated...
  • Page 8 Adjustable output voltage from 1.8 V to 6 V • Fixed output voltage versions • Small 6-pin SC-70 package Wireless Heart Rate Monitor Reference Design TIDU195A – January 2014 – Revised July 2014 Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated...
  • Page 9 8051 microcontroller core in addition to running the BLE stack. For additional information, see Section 4.4. TIDU195A – January 2014 – Revised July 2014 Wireless Heart Rate Monitor Reference Design Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated...
  • Page 10 Figure 7. Current Consumption-Active versus Sleep Modes Wireless Heart Rate Monitor Reference Design TIDU195A – January 2014 – Revised July 2014 Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated...
  • Page 11 5. In order to view the Identifier number (UDID), double click on Serial Number as shown in Figure 10 TIDU195A – January 2014 – Revised July 2014 Wireless Heart Rate Monitor Reference Design Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated...
  • Page 12 2. Once the top-left button is clicked, a menu appears, click on Add File to Library (see Figure 12) to navigate to and select the ecgmonitor.ipa file from the file directory. Wireless Heart Rate Monitor Reference Design TIDU195A – January 2014 – Revised July 2014 Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated...
  • Page 13 Getting Started www.ti.com Figure 12. Add File to Library TIDU195A – January 2014 – Revised July 2014 Wireless Heart Rate Monitor Reference Design Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated...
  • Page 14 (see Figure 15). Wireless Heart Rate Monitor Reference Design TIDU195A – January 2014 – Revised July 2014 Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated...
  • Page 15 Figure 16. ECG Monitor Application • Press the Start Scanning button as shown in Figure Figure 17. Launch Application TIDU195A – January 2014 – Revised July 2014 Wireless Heart Rate Monitor Reference Design Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated...
  • Page 16 – Figure 20 appears when connected to the body. Figure 20. ECG Data Connected to the Body Wireless Heart Rate Monitor Reference Design TIDU195A – January 2014 – Revised July 2014 Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated...
  • Page 17 The peer device may also discover and configure the battery service for battery level-state notifications. This functionality is the same as supported in Simple BLE Peripheral framework. TIDU195A – January 2014 – Revised July 2014 Wireless Heart Rate Monitor Reference Design Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated...

  • Page 18: Getting Started

    0x2D3A ECG_COMMAND 00 (1 byte) GATT_PERMIT_READ ECG command set Figure 21. ECG Peripheral Application: Complete Attribute Table Wireless Heart Rate Monitor Reference Design TIDU195A – January 2014 – Revised July 2014 Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated...
  • Page 19 ECG Sample2: Channel 3 ADC Low byte The Allowed maximum size of notification packet is 20 bytes. TIDU195A – January 2014 – Revised July 2014 Wireless Heart Rate Monitor Reference Design Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated...
  • Page 20 Figure 23. CC Debugger Launch the IAR project workspace as shown in Figure Figure 24. Project Details. Wireless Heart Rate Monitor Reference Design TIDU195A – January 2014 – Revised July 2014 Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated...
  • Page 21 Ensure that the software is on version 8.20.1 or newer as shown in Figure Figure 25. Version Control Figure 26 shows the main entry function. Figure 26. Main Function TIDU195A – January 2014 – Revised July 2014 Wireless Heart Rate Monitor Reference Design Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated...
  • Page 22 Start again to reconnect the demo board. If the issue continues, see the following solution on adjusting the input voltage from the battery. Wireless Heart Rate Monitor Reference Design TIDU195A – January 2014 – Revised July 2014 Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated...
  • Page 23 1500 1000 Time (s) C004 Input-Referred Noise (µV) C006 Figure 30. Input-Referred Noise Figure 31. Noise Histogram TIDU195A – January 2014 – Revised July 2014 Wireless Heart Rate Monitor Reference Design Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated...
  • Page 24 11L1 -4.38 -4.26 204.8 118.8283733 11L1 1800 -4.39 -4.48 147.2 115.5902624 11L1 2400 -4.42 -4.37 47.73 101.1310575 Wireless Heart Rate Monitor Reference Design TIDU195A – January 2014 – Revised July 2014 Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated...
  • Page 25 – IC – Industry Canada ICES-003 Class A See the Gas Sensor Platform Reference Design (SNOA922) for reference. TIDU195A – January 2014 – Revised July 2014 Wireless Heart Rate Monitor Reference Design Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated...
  • Page 26 V_Lithium 4.7µH EPL3015-472MLB VOUT V_Lithium 1.00Meg 10µF TPS61220DCK 0.1µF 47µF 10µF EG1390B 200k Figure 36. Power Section Wireless Heart Rate Monitor Reference Design TIDU195A – January 2014 – Revised July 2014 Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated...
  • Page 27 SYNCB RSTB VSSIO 22pF 0.1µF ADS1293CISQE/NOPB VDD_3 1.0Meg VDD_3 1.0Meg PTS635SL50LFS RSTB_1293 Figure 37. Analog Front End TIDU195A – January 2014 – Revised July 2014 Wireless Heart Rate Monitor Reference Design Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated...
  • Page 28 56.2k 1000pF CONN_FTSH-105-01-L-DV P0_3/MISO P0_5/SCK PULSE_BEAT 2.21k RESET_N Yellow BLE_RST 1293_RSTB PTS635SL50LFS RSTB_1293 Figure 38. ADS1293 Section Wireless Heart Rate Monitor Reference Design TIDU195A – January 2014 – Revised July 2014 Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated...
  • Page 29 LQG15HS2N2S02D MuRata Ω, SMD Inductor, Multilayer, Ferrite, 5.1 nH, 0.3 A, 0.2 Ω, 5.1nH 0402 LQG15HH5N1S02D MuRata TIDU195A – January 2014 – Revised July 2014 Wireless Heart Rate Monitor Reference Design Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated...
  • Page 30 1,6 mm Crystal, 4.096 MHz, 18 pF, SMD Crystal, 11,4 × 4,3 × ECS-41-18-5PXEN-TR ECS, Inc. 3,8 mm Wireless Heart Rate Monitor Reference Design TIDU195A – January 2014 – Revised July 2014 Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated...
  • Page 31 Figure 0. UNDEFINED Figure 0. UNDEFINED Figure 0. UNDEFINED Figure 39. Layer Plot Figure 0. UNDEFINED Figure 0. UNDEFINED TIDU195A – January 2014 – Revised July 2014 Wireless Heart Rate Monitor Reference Design Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated...
  • Page 32 Figure 40. All Layers Figure 41. Bottom Layer Figure 43. Top Layer Figure 42. Ground Layer Wireless Heart Rate Monitor Reference Design TIDU195A – January 2014 – Revised July 2014 Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated...
  • Page 33 To download the Gerber files for each board, see the design files at TIDA-00096. Figure 44. Fab Drawing TIDU195A – January 2014 – Revised July 2014 Wireless Heart Rate Monitor Reference Design Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated...
  • Page 34 SWRU270 About the Author AJINDER PAL SINGH is a Systems Architect at Texas Instruments where he is responsible for developing reference design solutions for the industrial segment. Ajinder brings to this role his extensive experience in high-speed digital, low-noise analog and RF system-level design expertise. Ajinder earned his Master of Science in Electrical Engineering (MSEE) from Texas Tech University in Lubbock, TX.
  • Page 35 Added paragraph explaining that installation of application is manual, but the designer must still connect to iTunes to ........................install the application. NOTE: Page numbers for previous revisions may differ from page numbers in the current version. TIDU195A – January 2014 – Revised July 2014 Revision History Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated...
  • Page 36 STANDARD TERMS AND CONDITIONS FOR EVALUATION MODULES Delivery: TI delivers TI evaluation boards, kits, or modules, including any accompanying demonstration software, components, or documentation (collectively, an “EVM” or “EVMs”) to the User (“User”) in accordance with the terms and conditions set forth herein. Acceptance of the EVM is expressly subject to the following terms and conditions.
  • Page 37 FCC Interference Statement for Class B EVM devices NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation.
  • Page 38 【無線電波を送信する製品の開発キットをお使いになる際の注意事項】 本開発キットは技術基準適合証明を受けておりません。 本製品のご使用に際しては、電波法遵守のため、以下のいずれかの措置を取っていただく必要がありますのでご注意ください。 1. 電波法施行規則第6条第1項第1号に基づく平成18年3月28日総務省告示第173号で定められた電波暗室等の試験設備でご使用 いただく。 2. 実験局の免許を取得後ご使用いただく。 3. 技術基準適合証明を取得後ご使用いただく。 なお、本製品は、上記の「ご使用にあたっての注意」を譲渡先、移転先に通知しない限り、譲渡、移転できないものとします。 上記を遵守頂けない場合は、電波法の罰則が適用される可能性があることをご留意ください。 日本テキサス・インスツルメンツ株式会社 東京都新宿区西新宿６丁目２４番１号 西新宿三井ビル 3.3.3 Notice for EVMs for Power Line Communication: Please see http://www.tij.co.jp/lsds/ti_ja/general/eStore/notice_02.page 電力線搬送波通信についての開発キットをお使いになる際の注意事項については、次のところをご覧くださ い。http://www.tij.co.jp/lsds/ti_ja/general/eStore/notice_02.page SPACER EVM Use Restrictions and Warnings: 4.1 EVMS ARE NOT FOR USE IN FUNCTIONAL SAFETY AND/OR SAFETY CRITICAL EVALUATIONS, INCLUDING BUT NOT LIMITED TO EVALUATIONS OF LIFE SUPPORT APPLICATIONS.
  • Page 39 Notwithstanding the foregoing, any judgment may be enforced in any United States or foreign court, and TI may seek injunctive relief in any United States or foreign court. Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265 Copyright © 2014, Texas Instruments Incorporated...
  • Page 40 IMPORTANT NOTICE FOR TI REFERENCE DESIGNS Texas Instruments Incorporated ("TI") reference designs are solely intended to assist designers (“Buyers”) who are developing systems that incorporate TI semiconductor products (also referred to herein as “components”). Buyer understands and agrees that Buyer remains responsible for using its independent analysis, evaluation and judgment in designing Buyer’s systems and products.