+int CmdLFEM4X(const char *Cmd);
+int CmdReadWord(const char *Cmd);
+int CmdWriteWord(const char *Cmd);
+int EM4x50Read(const char *Cmd, bool verbose);
+
+bool EM4x05IsBlock0(uint32_t *word);
+
+int usage_lf_em410x_sim(void);
+int usage_lf_em_read(void);
+int usage_lf_em_write(void);