Find your hardware version
If you need to report a problem with your VTAP reader or find the right reference diagram you will need to know your hardware version.
If you can connect your VTAP reader to a PC, you can easily check the BOOT.TXT file.
If you navigate to the VTAP reader in the computer's file system. It will appear as an attached mass storage device and list the files contained, including the BOOT.TXT file.
Inspecting BOOT.TXT you will find a number next to the word Hardware: such as v5. This is the Hardware version in use.
Alternatively, over a serial connection to the VTAP reader, sending the ?b command will return the BOOT.TXT information.
If you cannot power the VTAP reader
Open the case, by removing the end label and the security screw - at the opposite end of the reader to the LED window, on a compact case.
You will find the version number printed on the PCB, such as "VTAP100-PCB-V4a ©2021 DOT ORIGIN Ltd." which is VTAP100 v4a hardware. In the photo below is "VTAP100-GEN2-PCB-Rev2 © 2022 DOT ORIGIN" which is also known as VTAP100 v5 hardware.
