Out of the box, Impinj doesn't provide a Windows 7 64bit native USB driver for the Indy Development Platform. So in the event that you receive a development board configured for USB, you will not be able to communicate to it from a Windows 7 machine.
In this video we will demonstrate the procedure to convert the Indy Development Platform from the USB mode to the UART mode so that it will operate properly on a Windows 7 64 bit operating system.
You will need to download the UART.bin file below.
Sam-Ba can be downloaded here:
(For following along with these instructions, we'd advise using an older version of Sam-Ba as the latest versions don't include a GUI. We have used version 2.16 without issue).