diff --git a/src/simpgmspace.cpp b/src/simpgmspace.cpp
index a73858303..f0914bc24 100644
--- a/src/simpgmspace.cpp
+++ b/src/simpgmspace.cpp
@@ -67,7 +67,6 @@ char* eeprom_buffer_data;
 volatile int32_t eeprom_buffer_size;
 bool eeprom_read_operation;
 #define EESIZE (128*4096)
-void configure_pins( uint32_t pins, uint16_t config ) { }
 #else
 extern uint16_t eeprom_pointer;
 extern const char* eeprom_buffer_data;
@@ -646,4 +645,14 @@ FlagStatus USART_GetFlagStatus(USART_TypeDef* USARTx, uint16_t USART_FLAG) { ret
 void GPIO_PinAFConfig(GPIO_TypeDef* GPIOx, uint16_t GPIO_PinSource, uint8_t GPIO_AF) { }
 void USART_Init(USART_TypeDef* USARTx, USART_InitTypeDef* USART_InitStruct) { }
 void USART_Cmd(USART_TypeDef* USARTx, FunctionalState NewState) { }
+void RCC_PLLI2SConfig(uint32_t PLLI2SN, uint32_t PLLI2SR) { }
+void RCC_PLLI2SCmd(FunctionalState NewState) { }
+void RCC_I2SCLKConfig(uint32_t RCC_I2SCLKSource) { }
+void SPI_I2S_DeInit(SPI_TypeDef* SPIx) { }
+void I2S_Init(SPI_TypeDef* SPIx, I2S_InitTypeDef* I2S_InitStruct) { }
+void I2S_Cmd(SPI_TypeDef* SPIx, FunctionalState NewState) { }
+void SPI_I2S_ITConfig(SPI_TypeDef* SPIx, uint8_t SPI_I2S_IT, FunctionalState NewState) { }
+void RCC_LSEConfig(uint8_t RCC_LSE) { }
+FlagStatus RCC_GetFlagStatus(uint8_t RCC_FLAG) { return RESET; }
+ErrorStatus RTC_WaitForSynchro(void) { return ERROR; }
 #endif
diff --git a/src/simpgmspace.h b/src/simpgmspace.h
index a36e14c91..dc45b7963 100644
--- a/src/simpgmspace.h
+++ b/src/simpgmspace.h
@@ -359,4 +359,6 @@ inline void GPIO_Init(GPIO_TypeDef* GPIOx, GPIO_InitTypeDef* GPIO_InitStruct) {
 #define GPIO_ReadInputDataBit(...) true
 #endif
 
+#define configure_pins(...)
+
 #endif
diff --git a/src/x9d/board_x9d.cpp b/src/x9d/board_x9d.cpp
index 204ac1292..137649268 100644
--- a/src/x9d/board_x9d.cpp
+++ b/src/x9d/board_x9d.cpp
@@ -55,6 +55,7 @@ volatile uint32_t Tenms ; // TODO to remove everywhere / use a #define
 #define PIN_PORT_MASK           0x0700
 #define PIN_SPEED_MASK          0x6000
 
+#if !defined(SIMU)
 void configure_pins( uint32_t pins, uint16_t config )
 {
   uint32_t address ;
@@ -98,6 +99,7 @@ void configure_pins( uint32_t pins, uint16_t config )
     }
   }
 }
+#endif
 
 uint8_t getTemperature()
 {