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#1 2019-06-24 12:35:26

pabloinca
Contributor
Registered: 2019-06-21
Posts: 2

Time in seconds - hf 14a list for NFC card

Start |        End | Src | Data (! denotes parity error)                                           | CRC | Annotation         
------------+------------+-----+-------------------------------------------------------------------------+-----+--------------------         
          0 |        224 | Rdr |01                                                                       |     |           
    7546004 |    7548372 | Tag |04  00                                                                       |     |           
    7569204 |    7575028 | Tag |08  0b  3e  b5  88                                                       |     |           
    7602932 |    7606516 | Tag |20  fc  70                                                               |     |           
    7627716 |    7635844 | Tag |05  78  80  78  02  65  88                                               |  ok |   


How do I convert the START and END values into time in seconds

for example, line 1 of the NFC communication data above,
start  0 End 224:

does it mean it takes 224 carrier periods
i.e 224 x (1/13.56) micro seconds

Is this correct interpretation? Please correct me if its wrong

May thanks in advance.

Pablo

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