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关于TRF7970A对14443B卡的一些操作问题!

Other Parts Discussed in Thread: TRF7970A

有没有人知道,TRF7970A对14443B卡的四个基本指令怎么实现呀?TI个的程序例子,只有寻卡的程序,其他ATTRIB、HALT无法实现,发送命令可以发送到FIFO里面,但是标签没有回应!