Specifications

Serial port intercommunication agreement | VI-88TR development handbook
Command parameter2: 2bytes, start address of MASK (unit: bit).
Command parameter3: 1byte, the length of MASK (unit: bit).
Command parameter4: m bytes, Mask. If LEN％8=0, then m=LEN/8. If
LEN％8≠0, then m=LEN/8+1.
Command packet: 『40H m+6 EEH mem addr LEN Mask
CheckSum』
Return data: if success, byte count of return data= number of all listed tags
M(1byte)+ data of (tag number sent out L(<=8)*L(digit count of
EPC+EPC)).
Note: LEN=0, to identify all readable tag ID in antenna radiation
field.
Digit count of EPC:00H-0Word，01H-1Word，02H-2Word，……，FFH-256Word
『F0H 3+L*N EEH M L*N CheckSum』
Command format with reader address:
Command code: EEH
Parameter of reader address: address
Command parameter1: 1byte mem, select memory bank.
0 Password
1 EPC
2 TID
3
User
Command parameter2: 2bytes addr, start address of MASK (unit: bit).
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