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关于RFID2模块(基于TRF7970A)写入数据问题

TI工程师及各位前辈,我购买了一款DLP-RFID2模块,但在写入数据时发现 只能写入8个字符其指令码为

②//Write DATA(固定8字节长度)
01 0F00 0304 1842 21 00ddccbbaa 0000

②//Write DATA(指定UID标签固定8字节长度)
01 1700 0304 1862 21 5B5D21544AC007E0 0001000000 0000
01 1700 0304 1862 21 5B5D21544AC007E0 0078563412 0000

那么如果想写入一个随意长度的DATA,请问我该如何操作?,非常感谢各位的指导,谢谢!