INA220 Software Overview
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shows an error that pops up if the computer cannot communicate with the EVM. If you receive
this error, first check to see that the USB cable is properly connected. This error can also occur if you
connect the USB cable before the USB DIG Platform 9V power source. A second possible reason for this
problem is that there may be a problem with your computer USB Human Interface Device Driver. Make
sure that when you plug the in the USB cable, the computer recognizes the device. If the sound is on, you
will hear the distinctive sound that you expect when a USB device is properly connected to the PC.
Figure 11. INA220EVM Software—No Communication with the USB DIG Platform
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INA220 Evaluation Module
SBOU079A – July 2009 – Revised February 2010
Copyright © 2009–2010, Texas Instruments Incorporated
