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User's Guide
SBOU113–June 2011
INA226EVM Evaluation Board and Software Tutorial
This user's guide describes the characteristics, operation, and use of the INA226EVM evaluation board. It
discusses how to set up and configure the software and hardware, and reviews various aspects of the
program operation. Throughout this document, the terms evaluation board, evaluation module, and EVM
are synonymous with the INA226EVM. This user's guide also includes information regarding operating
procedures and input/output connections, an electrical schematic, printed circuit board (PCB) layout
drawings, and a parts list for the EVM.
Contents
1 Overview ..................................................................................................................... 2
2 INA226EVM Hardware Setup ............................................................................................. 4
3 INA226EVM Hardware ..................................................................................................... 6
4 INA226EVM Software Setup ............................................................................................. 12
5 INA226EVM Software Overview ......................................................................................... 14
6 INA226EVM Documentation ............................................................................................. 22
List of Figures
1 Hardware Included with INA226EVM Kit................................................................................. 3
2 INA226EVM Hardware Setup ............................................................................................. 4
3 INA226EVM Board Block Diagram ....................................................................................... 5
4 SM-USB-DIG Platform Block Diagram................................................................................... 6
5 Typical Hardware Test Connections for INA226EVM.................................................................. 7
6 Connecting the USB Cable to the SM-USB-DIG Platform............................................................. 8
7 Confirmation of SM-USB-DIG Platform Driver Installation............................................................. 8
8 INA226EVM Default Jumper Settings.................................................................................... 9
9 Typical Filter Setup........................................................................................................ 11
10 INA226 Shunt Configurations............................................................................................ 12
11 INA226EVM Software Installation....................................................................................... 13
12 INA226EVM License Agreements....................................................................................... 13
13 INA226EVM Software Installation Progress ........................................................................... 13
14 INA226EVM Software Interface ......................................................................................... 14
15 INA226EVM Software: Communication Error with the SM-USB-DIG Platform.................................... 15
16 Setting the I
2
C Address................................................................................................... 16
17 Configuring Operating Mode............................................................................................. 16
18 Configuring Conversion Times........................................................................................... 17
19 Setting the Configuration Register (Calibration Register)............................................................ 17
20 Setting the Configuration Register (Current LSB)..................................................................... 17
21 Configuring the Alert Pin.................................................................................................. 18
22 INA226 Results Bar ....................................................................................................... 18
23 Theory of Operation Flowchart on the Calculation Tab .............................................................. 19
24 Registers Tab .............................................................................................................. 20
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2
C is a trademark of NXP Semiconductors.
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1
SBOU113–June 2011 INA226EVM Evaluation Board and Software Tutorial
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Verzeichnis
- ・ Blockdiagramm on Seite 5 Seite 6 Seite 23
- ・ Anwendungsbereich on Seite 27
