diff --git a/server/src/Peripherals/I2cClient.cs b/server/src/Peripherals/I2cClient.cs
index 14e65a1..893ae8b 100644
--- a/server/src/Peripherals/I2cClient.cs
+++ b/server/src/Peripherals/I2cClient.cs
@@ -123,7 +123,7 @@ public class I2c
                 i2cData[i++] = item;
             }
 
-            var ret = await UDPClientPool.WriteAddr(this.ep, 2, I2cAddr.Write, data);
+            var ret = await UDPClientPool.WriteAddr(this.ep, 2, I2cAddr.Write, i2cData);
             if (!ret.IsSuccessful)
             {
                 logger.Error($"Failed to write data to I2C FIFO: {ret.Error}");
diff --git a/server/src/UdpClientPool.cs b/server/src/UdpClientPool.cs
index c8edc84..bbfeee4 100644
--- a/server/src/UdpClientPool.cs
+++ b/server/src/UdpClientPool.cs
@@ -458,7 +458,11 @@ public class UDPClientPool
                 dataArray[(i * (256 * (32 / 8)))..] :
                 dataArray[(i * (256 * (32 / 8)))..((i + 1) * (256 * (32 / 8)))];
 
-            opts.BurstLength = ((byte)Math.Min(sendDataArray.Length / 4 - 1, 1));
+            opts.BurstLength = ((byte)(
+                sendDataArray.Length % 4 == 0 ?
+                (sendDataArray.Length / 4) :
+                (sendDataArray.Length / 4) + 1
+            ));
             ret = await UDPClientPool.SendAddrPackAsync(endPoint, new SendAddrPackage(opts));
             if (!ret) return new(new Exception("Send 1st address package failed!"));