AMS AS7030B Bedienungsanleitung
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AS7030B
Content Guide
Demo Kit Manual •PUBLIC
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Content Guide
1Introduction....................................3
1.1 Kit Content.................................................... 3
1.2 Ordering Information .................................... 4
2Getting Started...............................5
3Hardware Description....................7
3.1 Hardware Architecture .................................7
3.2 Power Supply............................................... 8
4AS7030B Overview........................9
4.1 Optical Front End (OFE) .............................. 9
4.2 ECG Amplifier............................................. 12
4.3 Electrical Analog Front End (EAFE)........... 14
4.4 Light-to-Frequency Converter (LTF) .......... 15
4.5 ADC and FIFO ........................................... 15
4.6 Digital Interface.......................................... 17
4.7 Sampling Sequencer.................................. 17
5Software Description................... 23
5.1 Software Architecture................................. 23
5.2 Graphical User Interface............................ 27
5.3 FW, Driver, API.......................................... 55
6Revision Information................... 62
7Legal Information ........................ 63
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AS7030B
Introduction
Demo Kit Manual •PUBLIC
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1 Introduction
The AS7030B Evaluation Kit allows evaluation of all functions on the AS7030B Biosensor and test
them in various applications.
The initial Evaluation Kit works with USB connection to the PC and comes with a GUI, which enables
the user to change AS7030B register settings, see measurement results and many more.
The SDK (Software Development Kit) currently contains algorithms for HRM, HRV and BP and is
supplied with the Evaluation Kit. The compiled firmware can be flashed onto the STM32 ARM Cortex-
M4 low power MCU.
1.1 Kit Content
Figure 1:
Evaluation Hardware Board
For full flexibility, the vital signs sensor (AS7030B), an accelerometer (LIS2DH12) and three
electrodes are located on the break out board, which can be used in any application and re-connected
to the main board via FPC cable once broken off. There is also the option to attach external
electrodes. If you are using an optional Wristband evaluation kit, AS7038 wristband needs to be
connected to the Wristband PicoBlade connector K500 on Mainboard and sensor part of the kit need
to be separated from Mainboard.
Any signals important for development are accessible for probing at pin headers.
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AS7030B
Getting Started
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2 Getting Started
The client software latest version is available for download at https://ams.com/as7030B#tab/tools or
the software is possible to find on the USB stick as a part of the evaluation kit. To install, start the
installer executable and follow the instructions as shown in Figure 2 (left to right top to bottom).
Figure 2:
AS7030B Vital Signs Sensor Installation
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AS7030B
Getting Started
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For Windows OS versions prior to Windows®10, the STSW-STM32102 virtual COM port driver needs
to be installed as well. The driver can be found in the <drivers\STM32_vcp_driver> folder contained
within the client software installation path. To install it, go to your OS version directory (Win7 or Win8,
OS versions prior to Windows®7 are compatible with the Windows®7), then:
1. Double click on dpinst_x86.exe if you are running a 32-bits OS version
2. Double click on dpinst_amd64.exe if you are running a 64-bits OS version
3. Follow the instructions
For updating the FW on the evaluation board over USB, the DfuSe driver from STMicroelectronics has
to be installed. This is available in the <drivers\DFU> folder contained within the client software
installation path. To install it, go to your OS version directory (Win7, Win8 or Win8.1), then:
1. Go to [x86] directory or [x64] directory based on your OS version:
2. Double click on dpinst_x86.exe if you are running a 32-bits OS version
3. Double click on dpinst_amd64.exe if you are running a 64-bits OS version
4. Follow the instructions
Information
In some cases, it can be necessary that the driver needs to be installed even on a Windows 10
system. In this case chose the driver installer from the Win 8.1 folder and install.
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AS7030B
Hardware Description
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3 Hardware Description
3.1 Hardware Architecture
Figure 3:
Evaluation Hardware Board –Top View
SWD
Interface IEC 60601
Compilant DC-DC
converter AS7030
ECG INN Electrode
ECG REF Electrode
ECG INP Electrode
Break Out Line
Test Point for External ECG REF Electrode
Test Point for External ECG INN Electrode
Test Point for External ECG INP Electrode
STM32L476RET6
MCU Isolators for all
Signals
Pin Header
DFU Button
Micro USB
Pin Header
Current
Consumption
ADC ADS114
Connector for
Sensor Board
Molex PN:
53261_1071, 10
Contacts
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Hardware Description
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Figure 4:
Evaluation Hardware Board –Bottom View
3.2 Power Supply
The AS7030B Eval Kit is supplied by the USB connection. In order to avoid a direct connection from
the electrodes to the power grid, an IEC 60601-1 compliant RECOM DCDC converter (R0.25S-0505/H
or R0.25S-0505/HP) is assembled on the board as well as isolator ICs for all signals passing to the
sensor board. This means that there is no galvanic connection between the sensor board and the
power grid.
Accelerometer
LIS2DH12
Connector for
External
Electrodes
Connector for
Break out Board
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AS7030B
AS7030B Overview
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4 AS7030B Overview
The AS7030B is a photocurrent and voltage sensor capable of taking PPG, ECG, proximity and skin
temperature/resistivity measurements. It integrates an optical front end, ECG amplifier, electrical
analog front end and light to frequency (LTF) converter. It features a built-in sampling sequencer, 128-
byte FIFO, a 14-bit SAR ADC, four GPIO pins and an I2C interface.
4.1 Optical Front End (OFE)
The figure below shows the block diagram of the optical front end.
Figure 5:
Optical Front End
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AS7030B Overview
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The optical front end consists of:
●4 LED drivers, individually configurable, operated manually or controlled by the built-in sampling
sequencer
●2 built-in green LEDs (VD1 and VD2)
●1 built-in IR LED (VD4)
●1 free for connecting an external LED to VD3
●6 photodiodes
●4 with green filters (PD1, PD2, PD3 and PD4)
●1 with IR filter (B) (PD5)
●1 Clear (A) (PD6)
Figure 6:
Photodiode Arrangement
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