【修改】添加对 AT Client 版本号判断

Signed-off-by: chenyong <1521761801@qq.com>

at_socket_esp8266.c

@@ -31,6 +31,10 @@
 
 #include <at_socket.h>
 
+#if !defined(AT_SW_VERSION_NUM) || AT_SW_VERSION_NUM < 0x10000
+#error "This AT Client version is older, please check and update latest AT Client!"
+#endif
+
 #ifndef AT_DEVICE_NOT_SELECTED
 
 #define ESP8266_MODULE_SEND_MAX_SIZE   2048

at_socket_m26.c

@@ -31,6 +31,10 @@
 #include <at.h>
 #include <at_socket.h>
 
+#if !defined(AT_SW_VERSION_NUM) || AT_SW_VERSION_NUM < 0x10000
+#error "This AT Client version is older, please check and update latest AT Client!"
+#endif
+
 #ifndef AT_DEVICE_NOT_SELECTED
 
 #define M26_MODULE_SEND_MAX_SIZE       1460