Forum › MIFARE and NFC Reader IC`s › Can´t get Anticollision loop with two PICCs. › Reply To: Can´t get Anticollision loop with two PICCs.
Thank you for your answer,
I checked the firmware and I found a bug. It is fine now. However, I see that some pair of cards work better than others.
I have a pair of tags where the collision is detected properly (CollErr flag from ErrorREG set) but then CollPoss bits (in CollReg) show the erroneous position of the collision. As I said, sometimes works fine and some others not. I am quite confused. Does is something to do with the MinLevel and CollLevel in RxThresholdReg? I don´t know how they shoul be configured.
Could it be due to the gain? I configured to the the maximum.
Thanks again for your help.
BR.
Aitor.
I checked the firmware and I found a bug. It is fine now. However, I see that some pair of cards work better than others.
I have a pair of tags where the collision is detected properly (CollErr flag from ErrorREG set) but then CollPoss bits (in CollReg) show the erroneous position of the collision. As I said, sometimes works fine and some others not. I am quite confused. Does is something to do with the MinLevel and CollLevel in RxThresholdReg? I don´t know how they shoul be configured.
Could it be due to the gain? I configured to the the maximum.
Thanks again for your help.
BR.
Aitor.
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