diff --git a/PlaneGcsSdk_Shared/CommunicationManagement/CommModuleGenerateMavLink.cs b/PlaneGcsSdk_Shared/CommunicationManagement/CommModuleGenerateMavLink.cs
index 29fba31..668eb7f 100644
--- a/PlaneGcsSdk_Shared/CommunicationManagement/CommModuleGenerateMavLink.cs
+++ b/PlaneGcsSdk_Shared/CommunicationManagement/CommModuleGenerateMavLink.cs
@@ -205,8 +205,11 @@ namespace Plane.CommunicationManagement
 
         private byte[] DoTaskLEDCommandAsync(int ledmode, float ledInterval, int ledtimes, byte cR,byte cG,Byte cB)
         {
-            //ledInterval间隔单位秒，改为单位100ms
-            byte LEDInterval = (byte)(ledInterval*10);  //(byte)(10 / ledInterval);
+            //新版固件ledInterval间隔单位秒，传输为一个字节无法传输小数，所以*10改为100ms，可传输一位小数
+            byte LEDInterval = (byte)(ledInterval*10);
+            
+            //兼容老版本任然是频率 
+            //byte LEDInterval = (byte)(ledInterval);
 
             MAVLink.mavlink_msg_id_led_control led = new MAVLink.mavlink_msg_id_led_control();
             led.target_system = 1;