diff --git a/Core/Src/usart.c b/Core/Src/usart.c
index 8fb2634..b34f79f 100644
--- a/Core/Src/usart.c
+++ b/Core/Src/usart.c
@@ -71,7 +71,7 @@ void MX_USART3_UART_Init(void)
   huart3.Instance = USART3;
   huart3.Init.BaudRate = 19200;
   huart3.Init.WordLength = UART_WORDLENGTH_8B;
-  huart3.Init.StopBits = UART_STOPBITS_1;
+  huart3.Init.StopBits = UART_STOPBITS_2;
   huart3.Init.Parity = UART_PARITY_NONE;
   huart3.Init.Mode = UART_MODE_TX_RX;
   huart3.Init.HwFlowCtl = UART_HWCONTROL_NONE;
diff --git a/sdk b/sdk
index e78069f..eb85daa 160000
--- a/sdk
+++ b/sdk
@@ -1 +1 @@
-Subproject commit e78069f293807d8ed385d8acd233c60ff3248110
+Subproject commit eb85daa5183b6d045c4ba701ce8bac065e923cda
diff --git a/zapp.ioc b/zapp.ioc
index c5d76c4..b9e80d4 100644
--- a/zapp.ioc
+++ b/zapp.ioc
@@ -230,7 +230,8 @@ TIM7.Prescaler=81
 USART1.IPParameters=VirtualMode
 USART1.VirtualMode=VM_ASYNC
 USART3.BaudRate=19200
-USART3.IPParameters=VirtualMode,BaudRate
+USART3.IPParameters=VirtualMode,BaudRate,StopBits
+USART3.StopBits=STOPBITS_2
 USART3.VirtualMode=VM_ASYNC
 VP_CRC_VS_CRC.Mode=CRC_Activate
 VP_CRC_VS_CRC.Signal=CRC_VS_CRC