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Texas Instruments ADS1x9xECG-FE User Manual Download Page 29

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ADS1x9xECG-FE Hardware Introduction

Figure 33. Simulator Connection

5.7

USB Interface

The ADS1x9xECG-FE has a mini USB interface for PC application connectivity requiring a standard mini
USB to USB cable for connection. ADS1x9xECG-FE is designed to work in the slave mode.

5.8

Onboard Key Interface

The ADS1x9xECG-FE board has four switches.

Figure 34

details the position of each switch.

29

SLAU384A – December 2011 – Revised April 2012

ADS1x9xECG-FE Demonstration Kit

Submit Documentation Feedback

Copyright © 2011–2012, Texas Instruments Incorporated

Summary of Contents for ADS1x9xECG-FE

Page 1: ...ADS1x9xECG FE Demonstration Kit User s Guide Literature Number SLAU384A December 2011 Revised April 2012...

Page 2: ...PIO Test Points 28 5 6 Analog Inputs 28 5 7 USB Interface 29 5 8 Onboard Key Interface 29 5 9 Visual Indication 30 6 Evaluation of ECG and Respiration Specific Functions 30 6 1 Evaluation Mode Analysi...

Page 3: ...ion Register Map 19 25 PC Application Analysis SCOPE 20 26 PC Application Analysis Histogram 21 27 PC Application Analysis FFT 22 28 PC Application Analysis ECG 23 29 PC Application Analysis ADS1292R...

Page 4: ...CG Cable Drawing 40 49 Top Layer Placement 47 50 Bottom Layer Placement 48 4 List of Figures SLAU384A December 2011 Revised April 2012 Submit Documentation Feedback Copyright 2011 2012 Texas Instrumen...

Page 5: ...diagnostic purposes The ADS1x9xECG FE demonstration kit is intended solely for evaluation and development purposes It is not intended for use and may not be used as all or part of an end equipment pro...

Page 6: ...The board can be assembled with any of these chips ADS1292 ADS1292R and ADS1192 demonstration kits are available The MSP430 firmware and PC application are designed to automatically detect the instal...

Page 7: ...ystem 1280 1024 or greater display screen resolution 3 1 2 Additional Requirements for use with Hardware ADS1x9xECG FE Demonstration Kit USB to mini USB cable DB9 ECG Cable 3 2 Installing the Software...

Page 8: ...t Figure 2 PC Application Installation Screen 1 Accept the License Agreement and click Next Figure 3 PC Application Installation Screen 2 8 ADS1x9xECG FE Demonstration Kit SLAU384A December 2011 Revis...

Page 9: ...The LabVIEW application software is installed now Click Next to install the Microsoft C 2008 Redistributable Package x86 Figure 5 PC Application Installation Screen 4 9 SLAU384A December 2011 Revised...

Page 10: ...creen appears Click Cancel to proceed Figure 6 PC Application Installation Screen 5 Click Finish to complete the installation procedure Figure 7 PC Application Installation Screen 6 10 ADS1x9xECG FE D...

Page 11: ...following screen appears Click Next Figure 8 PC Application Installation Screen 7 Accept the license terms and click Install Figure 9 PC Application Installation Screen 8 11 SLAU384A December 2011 Re...

Page 12: ...A onetime installation of the USB driver is required for the communication between ADS1x9xECG FE and PC application The following steps will ensure proper installation of the USB drivers 1 Plug in US...

Page 13: ...2 As shown in Figure 14 navigate to the directory in which MSP430 CDC inf file is located C Program Files Texas Instruments ADS1x9xevm USB Drivers This file will be copied to the directory while inst...

Page 14: ...ck Next Figure 14 Hardware Wizard Screen 3 Figure 15 Hardware Wizard Screen 4 14 ADS1x9xECG FE Demonstration Kit SLAU384A December 2011 Revised April 2012 Submit Documentation Feedback Copyright 2011...

Page 15: ...lick on Continue Anyway Figure 16 Hardware Wizard Screen 5 Click on Finish Figure 17 Hardware Wizard Screen 6 15 SLAU384A December 2011 Revised April 2012 ADS1x9xECG FE Demonstration Kit Submit Docume...

Page 16: ...software Unless the hardware has been disconnected the user will observe messages that confirm that the connection has been established and the program will wait in idle mode for user input If the con...

Page 17: ...file Live ECG RESP Display Provides streaming ECG signals along with heart rate lead off information and respiration 4 1 1 ADC Registers Tab The ADC register tab allows the user to configure the vari...

Page 18: ...ive signal General options including clocking are also available on this tab Figure 21 Register Configuration LOFF and RLD The GPIO Registers tab consists of the GPIO settings Figure 22 Register Confi...

Page 19: ...23 Register Configuration Respiration Registers The Registers Map tab reads back the register bit values from the ADS1x9xECG FE The Refresh Registers button provided in this tab read back the registe...

Page 20: ...The Scope sub tab displays the data in the time domain The units are converted from codes to volts using the voltage reference value set in the ADC Registers tab and are plotted as either input referr...

Page 21: ...oltage and peak to peak voltage for analysis Figure 26 PC Application Analysis Histogram The following buttons controls are available in this sub tab Button Control Description Histogram Analysis Runs...

Page 22: ...sis of the selected channel s and result will be shown on the pop up window Plot Channel selection button allow selecting All channels Channel 1 or Channel 2 for display AC Analysis Parameters Various...

Page 23: ...for the ADS1192 and ADS1292 The ADS1292R only displays Lead I or Respiration data Figure 28 PC Application Analysis ECG Figure 29 PC Application Analysis ADS1292R Respiration Low Pass Filter Enabled...

Page 24: ...Description Auto scaling Both x scale and y scale auto scaling is possible User can enable or disable this feature Export Data The displayed data can be exported to excel or Clipboard Annotation Provi...

Page 25: ...s will be stored to the file Device_ record number _Volts xls FFT Data Acquired data sample s FFT values will be stored to the file Device_ record number _FFT xls Histogram Data Acquired data sample s...

Page 26: ...ision for selecting either 50 Hz or 60 Hz notch filter The filter on the EVM board is automatically enabled based on the selection made Auto scaling Both x scale and y scale auto scaling is possible U...

Page 27: ...n Appendix C MSP430F5529 U7 is the micro controller used on the board For more details of the MSP430F5529 please visit http focus ti com docs prod folders print msp430f5529 html The following sections...

Page 28: ...3 Memory ADS1x9xECG FE has 8GB NAND Flash memory U14 installed for data storage 5 4 Accessing ADS1x9x Digital Signals ADS1x9x SPI interface with MSP430 can be accessed through the test points given i...

Page 29: ...ring a standard mini USB to USB cable for connection ADS1x9xECG FE is designed to work in the slave mode 5 8 Onboard Key Interface The ADS1x9xECG FE board has four switches Figure 34 details the posit...

Page 30: ...e state and steady blue LED D1 indicates the micro controller is busy in servicing requests from the PC application 6 Evaluation of ECG and Respiration Specific Functions The micro controller receives...

Page 31: ...function calls to communicate with the demonstration kit through the DLL There are two general operating modes available in the system 1 Evaluation Mode Analysis Mode 2 Live Data Streaming Mode 6 1 E...

Page 32: ...irmware to start the live data streaming The firmware will instruct the converter to run in continuous conversion mode monitoring the DRDY interrupt for notification as to when new data is ready Based...

Page 33: ...az www ti com Evaluation of ECG and Respiration Specific Functions Figure 37 Live Data Stream Mode Data Flow for ADS1292R 6 2 1 Filters IIR Filter DC signal removal 1st Order IIR filter is used to rem...

Page 34: ...ncy is selectable from the PC application This filter provides a very sharp cut off around 150 Hz with attenuation more than 30 dB at the stop band The notch at 50 60 Hz provides attenuation of more t...

Page 35: ...ction of a 161 order muscle artifact filter which has a passband of 0 67 Hz to 40 Hz This filter provides a sharp cut off at 40 Hz with attenuation of 30 dB at the stop band The frequency response for...

Page 36: ...the first derivative x n 1 is the sample value for n 1 th sample x n 1 is the sample value for n 1 th sample 2 The initial two seconds of the first derivative is stored in a buffer and the maximum val...

Page 37: ...grade The firmware on the ADS1x9xECG FE can be changed from the PC application by selecting the Firmware Upgrade option on the PC application At the end of the firmware upgrade the system issues a res...

Page 38: ...e will be available at C Program Files Texas Instruments ADS1x9xevm Firmware 4 Device will reset and come up with new firmware with itself 8 Connector Interface The following connectors used for exter...

Page 39: ...nnect 6 NC No Connect 7 NC No Connect 8 9 ECG_SHD_DRV 8 2 USB Mini Connector Figure 47 USB Mini Connector Pin Outs NO Signal Description 1 VBUS USB power 5 V 2 D USB DM 3 D USB DP 4 ID NC 5 GND GND 39...

Page 40: ...3 LL 4 RL 5 Open 6 Open 7 Open 8 Shield 9 Shield Figure 48 ECG Cable Drawing The ECG cable can be ordered through http www biometriccables com using the part number N26082011 40 ECG Cable Details SLAU...

Page 41: ...als BOM The following pages show the bill of materials table landscaped for readability 41 SLAU384A December 2011 Revised April 2012 ADS1x9x EVM Bill of Materials BOM Submit Documentation Feedback Cop...

Page 42: ...1 C23 CAP CER 1500PF 50V X7R 0402 AVX 04025C152JAT2A 13 2 2 2 C29 C30 CAP CER 12PF 5 50V NP0 0402 AVX 04025A120JAT2A 14 1 1 1 C32 CAP CER 0 47UF 16V X5R 0402 TDK C1005X5R1C474K 15 3 3 3 C37 C81 C82 C...

Page 43: ...R9 R13 R15 R17 R21 R22 R24 R25 R28 R39 R41 R42 R47 R65 R67 R68 44 0 0 0 Not Installed R74 R76 R78 R79 R80 R81 R83 R86 R88 R89 R90 R91 R92 R93 R96 R103 45 0 0 0 R2 Not Installed R4 R46 R60 R97 R108 46...

Page 44: ...HM 1 10W 5 0402 SMD Panasonic ERJ 2GEJ100X 69 2 2 2 R116 R118 RES 0 0 OHM 1 10W 0402 SMD Panasonic ERJ 2GE0R00X 70 2 2 2 SW1 SW4 SWITCH LT 6MM 160GF 5MM HEIGHT Panasonic EVQ 21505R 71 2 2 2 SW2 SW3 SW...

Page 45: ...25 33DBVT Battery Assembly 92 0 0 0 Connector on battery CONN HOUSING 2POS 100 W O RAMP Molex 22012021 93 0 0 0 Connector on battery CONN TERM CRIMP 18 24AWG TIN Molex 8030303 94 0 0 0 Battery 4 2V Li...

Page 46: ...matics C 1 PCB Layout The following pages show the PCB layout landscaped for readability 46 PCB Layout and Schematics SLAU384A December 2011 Revised April 2012 Submit Documentation Feedback Copyright...

Page 47: ...w ti com PCB Layout Figure 49 Top Layer Placement 47 SLAU384A December 2011 Revised April 2012 PCB Layout and Schematics Submit Documentation Feedback Copyright 2011 2012 Texas Instruments Incorporate...

Page 48: ...Layout www ti com Figure 50 Bottom Layer Placement 48 PCB Layout and Schematics SLAU384A December 2011 Revised April 2012 Submit Documentation Feedback Copyright 2011 2012 Texas Instruments Incorpora...

Page 49: ...2 Schematics The schematics are appended to the end of this data sheet 49 SLAU384A December 2011 Revised April 2012 PCB Layout and Schematics Submit Documentation Feedback Copyright 2011 2012 Texas I...

Page 50: ...Diagram 1 B Thursday August 04 2011 Battery Power Module USB I2C SPI USB UART JTAG BT Module GPIO SPI GPIO Flash Memory Micro SD LEDs Keys Optional Must have modules Data Power To PC Application 1 ADS...

Page 51: ...1 TP46 1 TP56 1 TP24 C14 1uF 1 TP52 1 TP42 R45 0E R41 NI C4 NI C18 1uF R36 1M R34 10K R37 0E R54 0E R66 10M 1 C60 47pF C6 10uF C49 2 2nF R2 NI 1 TP16 R73 51K R72 10M 1 C71 NI R23 0E 1 PGA1N 2 PGA1P 3...

Page 52: ...Date Sheet of 7 ADS1x9xECG FE A ADS1292 Power Supply 3 B Thursday August 04 2011 C38 10uF C36 10uF R60 0E R61 30 9K C39 0 1uF 1 IN 2 GND 3 EN 4 NR FB 5 OUT U10 TPS73201 R59 46 4K 1 TP32 C42 0 01uF L5...

Page 53: ...O2 32 I O3 33 NC15 34 NC16 35 NC17 36 VSS 37 VCC 38 PRE VSS2 39 NC18 40 NC19 41 I O4 42 I O5 43 I O6 44 I O7 45 NC20 46 NC21 47 NC22 48 NC23 U14 MT298G08AAAWP R93 NI DNI R107 1K 1 TP41 1 TP58 1 IO1 2...

Page 54: ...TCLK 74 PJ_2 TMS 75 PJ_3 TCK 76 RST NMI SBWTDIO 77 P6_0 CB0 A0 78 P6_1 CB1 A1 79 P6_2 CB2 A2 80 P6_3 CB3 A3 21 P1_0 TA0CLK ACLK 22 P1_1 TA0_0 23 P1_2 TA0_1 24 P1_3 TA0_2 25 P1_4 TA0_3 26 P1_5 TA0_4 2...

Page 55: ...6 NI R38 10K 1 LDO 2 STAT1 3 STAT2 4 AC 5 BAT1 6 BAT2 7 ISET2 8 PSEL 9 CE 10 ISET1 11 VSS 15 OUT3 16 OUT2 17 OUT1 18 ACPG 19 USBPG _ _VBSEL 12 TS 13 DPPM 14 TMR 20 USB 21 TP U8 BQ24032ARHLR R48 10K R1...

Page 56: ...6 NI R5 NI R13 NI DNI R3 NI R86 NI R78 NI 1 TP44 1 DIR1 2 DIR2 3 A1 4 A2 5 A3 6 A4 9 OE 16 VCCA 7 DIR3 8 DIR4 11 B4 12 B3 13 B2 14 B1 15 VCCB 10 GND U4 NI R8 NI 1 TP2 R74 NI 1 TP8 C61 NI C5 NI C55 NI...

Page 57: ...roduct This notice contains important safety information about temperatures and voltages For additional information on TI s environmental and or safety programs please contact the TI application engin...

Page 58: ...or use in safety critical applications such as life support where a failure of the TI product would reasonably be expected to cause severe personal injury or death unless officers of the parties have...

Page 59: ...401 Building No 5 JiuGe Business Center Lane 2301 Yishan Rd Minhang District Shanghai China Sales Direct 86 21 6401 6692 Email amall ameya360 com QQ 800077892 Skype ameyasales1 ameyasales2 Customer Se...

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