diff --git a/src/board_ersky9x.cpp b/src/board_ersky9x.cpp
index e45401798..87e9d1926 100644
--- a/src/board_ersky9x.cpp
+++ b/src/board_ersky9x.cpp
@@ -55,9 +55,6 @@ volatile uint32_t Tenms ;
 /** Pins description corresponding to Rxd,Txd, (UART pins) */
 #define SECOND_PINS        {PINS_USART0}
 
-#define BT_USART       UART1
-#define BT_ID          ID_UART1
-
 #define CPU_INT         int32_t
 #define CPU_UINT        uint32_t
 
diff --git a/src/ersky9x/board.h b/src/ersky9x/board.h
index b0a69db23..1ca8bd728 100644
--- a/src/ersky9x/board.h
+++ b/src/ersky9x/board.h
@@ -604,6 +604,10 @@ extern uint32_t transSpeed;
 #define BOARD_USART_BASE           USART1
 #define BOARD_ID_USART             ID_USART1
 
+// BlueTooth
+#define BT_USART       UART1
+#define BT_ID          ID_UART1
+
 //------------------------------------------------------------------------------
 
 
diff --git a/src/gruvin9x/somo14d.cpp b/src/gruvin9x/somo14d.cpp
index 85613a2df..be1dc25df 100644
--- a/src/gruvin9x/somo14d.cpp
+++ b/src/gruvin9x/somo14d.cpp
@@ -40,9 +40,7 @@
  old DSM2 code) which seemed to much for the interrupt. 
  */
 
-#ifndef SIMU
-#include "open9x.h"
-#endif
+#include "../open9x.h"
 
 // Start and stop bits need to be 2ms in duration. Start bit is low, stop bit is high
 #define SOMOSSBIT    4 //The 2ms of a stop/start bit
diff --git a/src/simpgmspace.cpp b/src/simpgmspace.cpp
index 801517237..d0f328f93 100644
--- a/src/simpgmspace.cpp
+++ b/src/simpgmspace.cpp
@@ -287,7 +287,9 @@ namespace simu {
 #include <direct.h>
 #endif
 
+#if defined(PCBARM)
 FATFS g_FATFS_Obj;
+#endif
 
 FRESULT f_stat (const TCHAR*, FILINFO*)
 {
@@ -410,6 +412,9 @@ FRESULT f_getcwd (TCHAR *path, UINT sz_path)
   return FR_OK;
 }
 
+#if defined(PCBARM)
 int32_t Card_state = SD_ST_MOUNTED;
 uint32_t Card_CSD[4]; // TODO elsewhere
 #endif
+
+#endif