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TRF7960A: If my NFC Reader/Writer only has 1 antenna, do I need to use the anti-collision to comply with ISO15693?

erik lee2
Genius 3060 points
Part Number: TRF7960A

hI,

i saw the example code of TRF7960A, it has "Iso15693Anticollision" function in iso15693.c,

if my system only has 1 antenna, do i need to use this function?

sorry for my poor knowledeg in this field.

  • 0
    TI__Guru* 91206 points

    Dear Erik -

    ISO15693 anti-collision usage is optional. Furthermore, it (anti-collision) is about arbitrating more than one tag in the field of one antenna. Usually, the application developer (that is you) would issue Inventory command with single slot in a polling manner and handle single tags as they come into the field. If two or more tags are presented when using single slot mode, a collision would be detected - you would then switch to using Inventory command with 16 slots and arbitrate them to retrieve the UIDs and then proceed to other tag operations (if part of the application, i.e. read block(s), write blocks(s), etc.)