diff --git a/SerialPorts.c b/SerialPorts.c
index 5fae53b..8846291 100644
--- a/SerialPorts.c
+++ b/SerialPorts.c
@@ -98,7 +98,7 @@ static void vSerialPort_InitUSART5(tSerialPortArtery *env) {
             1, 1, 1, 2,
             false, 0xFF,
             buf_USART5_DMA, sizeof(buf_USART5_DMA),
-            256, 256
+            1024, 0
     );
 
 }