卡片初始化由发卡机完成，主要包括设置射频卡密码、控制字及初始化卡号等。
The initialization consists of Key A, Key B, Control byte and Card No.
根据芯片的特点给出了程序的设计思路，包括AD9833初始化、写控制字、合成频率等。
Given the characteristics of this chip, this paper provides the procedure design methodology that includes AD9833 initiative, write control and synthesis frequency.
根据芯片的特点给出了程序的设计思路，包括AD9833初始化、写控制字、合成频率等。
Given the characteristics of this chip, this paper provides the procedure design methodology that includes AD9833 initiative, write control and synthesis frequency.
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