优化代码和脱机时长判断
diff --git a/supwisdom/sp_config.h b/supwisdom/sp_config.h
index f895a46..13375f3 100644
--- a/supwisdom/sp_config.h
+++ b/supwisdom/sp_config.h
@@ -232,10 +232,10 @@
   uint8 cardtype;
   uint8 expiredate[4];
 
-  uint8 waterlimit;		//µ¥´Î³öË®ÉÏÏÞ£¨100ml£©
+  uint16 waterlimit;		//µ¥´Î³öË®ÉÏÏÞ£¨100ml£©
   uint32 cobillno;		//½»Ò×¶©µ¥±àºÅ,BCDÂë
   uint8	permit;			//ÊÇ·ñÔÊÐíÏû·Ñ£¬0-ÔÊÐí£¬1-²»ÔÊÐí
-  uint8 limitmsg[45];		//ÏÞÖÆÏû·ÑÐÅÏ¢
+  char limitmsg[45];		//ÏÞÖÆÏû·ÑÐÅÏ¢
   sp_qrcode_t qrcode;	//¶þάÂë
   sp_feepara_t feepara;
 } sp_card_t;