User manual

www.ti.com

AFE44x0SPO2EVM Hardware

Table 1 contains the Save tab control descriptions.

Table 1. Save Tab Control Descriptions

Button/Control Description

Saves the scope analysis result.

Scope Analysis

The result is saved in the file Device_<record number>_Analysis.xls.

Saves the FFT analysis result.

FFT Analysis

The result is saved in the file Device_<record number>_Analysis.xls.

Saves the histogram analysis result.

Histogram Analysis

The result is saved in the file Device_<record number>_Analysis.xls.

All the current register values are read from the EVM and stored.

The result is saved in the file Device_<record number>_Analysis.xls.

Data – Codes Acquired data sample values are stored to the file Device_ <record number>_Codes.xls.

FFT Data Acquired data sample’s FFT values are stored to the file Device_ <record number>_FFT.xls.

Histogram Data Acquired data sample’s histogram values are stored to the file Device_ <record number>_Histogram.xls.

The Record Number saves files with the provided number in the file name. User notes can also be added

to the file by typing the notes in the User Comments control.

5 AFE44x0SPO2EVM Hardware

CAUTION

Many of the components on the AFE44x0SPO2EVM are susceptible to damage

by electrostatic discharge (ESD). Customers are advised to observe proper

ESD handling precautions when unpacking and handling the EVM, including

the use of a grounded wrist strap, bootstraps, or mats at an approved ESD

workstation. Safety glasses should also be worn.

The key features of the AFE44x0 Analog Front End demonstration board are:

• Based on MSP430F5529

• DB9 pulse oximeter sensor cable support

• Acquire data at up to 3000 Hz in evaluation mode

• SPI Data interface

The AFE44x0SPO2EVM board can be used as a demo board for pulse oximeter and heart rate

applications. The BOM is provided in Section 11. The printed circuit board (PCB) and schematic are

shown in Section 12.1 and Section 12.2, respectively.

MSP430F5529 (U2 – see Section 12.2) is the microcontroller 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 explain the main hardware components available on the EVM. Figure 34 shows the

functional block diagram for the EVM.

SLAU480C–January 2013–Revised May 2014 AFE4400 and AFE4490 Development Guide

Submit Documentation Feedback