Writing Data to a Tag

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M Marshall Ellis 1 year 3 months ago
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Hello all:

When writing data to a tag with the Android RFID SDK, you must specify hex data to write. Does this mean that all of your data fields should comply with a 4 bit multiple size? i.e. should not have a field less than 4 bits?

Thanks in advance

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2 Replies

S Sean Kennedy

HI Marshall,

If you are referring to the 16-bit DWORD value that need to be written to tags in the demo apps - yes this is correct.

 Quick reminder - it is not "4-bit" * characters * -- rather it is a group of 4 hex characters / word for writing to the tags.

And Yes, our RFID API3 SDK - expects 2-bytes / 1-word notation for tag Data transactions for valid word boundaries.

M Marshall Ellis

Thank you Sean ... I may not have phrased my question perfectly but you answered my question! We were seeing this anyway and getting errors when we were not using WORD boundaries!

Thank you

Marshall

 

 

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