Awọn aami Uhf RFID ni gbogbogbo pin si awọn agbegbe mẹrin:
【Reserve】 : Adirẹsi: 0-3; Adirẹsi: 0-1 Tọju 32bit pa ọrọigbaniwọle (pa). Awọn aiyipada iye ni 00 00 00 00.
2-3 Tọju ọrọ igbaniwọle Wiwọle 32-bit. Awọn aiyipada iye ni 00 00 00 00.
Nigba ti agbegbe ko ba ti paro tabi ti paroko, the data in the area can be rewritten at will.
【EPC(EPC Area)】 : Adirẹsi: 2-7; Store the 96bit ID number, which is the area where the data that is normally read out by default by our device is stored. Nigba ti agbegbe ko ba ti paro tabi ti paroko, the data in the area can be rewritten at will.
【TID(TID area)】 : Adirẹsi: 0-5; Store a 48-bit globally unique and unalterable ID number.
【User(User area)】 : Adirẹsi: 0-31; Store 688-bit data. By default, each address is 00 00. If the area is not encrypted or encrypted, data in the area can be rewritten at will.
The above areas are explained with the Alien H9, a more commonly used tag chip, as an example. Different chips, the corresponding regional data and the actual role may be different
To read the USER area data, it is recommended that you first look at the EPC protocol, EPC several basic operations are read, write, lock, pa.
The protocol document is very detailed, in addition, if you are doing application development, to operate according to the API provided by the manufacturers, you need to read the API functions of the manufacturers.
If you are doing the underlying baseband development, you should be more familiar with the EPC protocol.