Mif.Anticoll
This command is deprecated. Do not use it in new code as we may remove it in the future!
This command performs an anti-collision sequence.
A number of bits equal to the BitCount value will be used in PreSelSer for preselection of cards in the HF field of the antenna. This means that only cards with a serial number matching the first BitCount bits of PreSelSer will be taken into consideration. The command returns an unambiguous serial number in the Snr value which may be used for the card selection procedure, using the Mif.Select command.
For new applications, the Iso14a.Anticoll command should be used instead.
Properties
- Command code: 0x1002
- Command timeout: 100 ms
- Possible status codes: General status codes, Mif.ErrNoTag, Mif.ErrBitcount, Mif.ErrBytecount, Mif.ErrColl, Mif.ErrParity, Mif.ErrFraming
Parameters (request frame)
| Name | Type/Size | Description |
|---|---|---|
| BitCount | Integer (8 bits) | Number of bits to be considered in PreSelSer . |
| PreSelSer | Raw data (length 4 Bytes) | Part of the card's serial number which will be used for preselection of cards. The amount of considered bits is specified by the BitCount value. |
Returned values (response frame)
| Name | Type/Size | Description |
|---|---|---|
| Snr | Raw data (length 4 Bytes) | Unambiguous serial number of selected label. |