摘要： MF500PICCACTIVATEIDLE ()激活处于IDLE状态(上电复位和通信失败时卡片都处于这种状态)的一张卡片。用法：Mf500PiccActivateIdle ( unsigned char br, unsigned char * atq, unsigned char * sak, unsigned char * uid, unsigned char * uid_len)描述：本函数完... 阅读全文