diff --git a/bsp/stm32/libraries/STM32H7xx_HAL/CMSIS/Device/ST/STM32H7xx/Include/stm32h747xx.h b/bsp/stm32/libraries/STM32H7xx_HAL/CMSIS/Device/ST/STM32H7xx/Include/stm32h747xx.h
index 41c44ff065..c8d0a9c5f9 100644
--- a/bsp/stm32/libraries/STM32H7xx_HAL/CMSIS/Device/ST/STM32H7xx/Include/stm32h747xx.h
+++ b/bsp/stm32/libraries/STM32H7xx_HAL/CMSIS/Device/ST/STM32H7xx/Include/stm32h747xx.h
@@ -217,9 +217,7 @@ typedef enum
 
 #define SMPS       /*!< Switched mode power supply feature */
 
-#if !defined(__CC_ARM) || defined(__CLANG_ARM) || defined(__ICCARM__)
-#define CORE_CM7
-#endif
+
 
 /**
   * @brief Configuration of the Cortex-M4/ Cortex-M7 Processor and Core Peripherals
diff --git a/bsp/stm32/stm32h747-st-discovery/board/SConscript b/bsp/stm32/stm32h747-st-discovery/board/SConscript
index da8731eb90..5f34d27d46 100644
--- a/bsp/stm32/stm32h747-st-discovery/board/SConscript
+++ b/bsp/stm32/stm32h747-st-discovery/board/SConscript
@@ -23,7 +23,7 @@ elif rtconfig.CROSS_TOOL == 'iar':
 
 # STM32H743xx || STM32H750xx || STM32F753xx
 # You can select chips from the list above
-CPPDEFINES = ['STM32H747xx']
+CPPDEFINES = ['STM32H747xx', 'CORE_CM7']
 group = DefineGroup('Drivers', src, depend = [''], CPPPATH = path, CPPDEFINES = CPPDEFINES)
 
 Return('group')
diff --git a/bsp/stm32/stm32h747-st-discovery/project.uvprojx b/bsp/stm32/stm32h747-st-discovery/project.uvprojx
index a6d4eb3c75..e8a7a8d6f6 100644
--- a/bsp/stm32/stm32h747-st-discovery/project.uvprojx
+++ b/bsp/stm32/stm32h747-st-discovery/project.uvprojx
@@ -336,7 +336,7 @@
             <v6Rtti>0</v6Rtti>
             <VariousControls>
               <MiscControls></MiscControls>
-              <Define>STM32H747xx, USE_HAL_DRIVER</Define>
+              <Define>STM32H747xx, CORE_CM7, USE_HAL_DRIVER</Define>
               <Undefine></Undefine>
               <IncludePath>.;..\..\..\include;board;board\CubeMX_Config\CM7\Inc;..\libraries\HAL_Drivers;..\libraries\HAL_Drivers\config;..\..\..\libcpu\arm\common;..\..\..\libcpu\arm\cortex-m7;..\..\..\components\drivers\include;..\..\..\components\drivers\include;..\..\..\components\drivers\include;..\..\..\components\finsh;..\..\..\components\libc\compilers\common;..\libraries\STM32H7xx_HAL\STM32H7xx_HAL_Driver\Inc;..\libraries\STM32H7xx_HAL\CMSIS\Device\ST\STM32H7xx\Include;..\libraries\STM32H7xx_HAL\CMSIS\Include</IncludePath>
             </VariousControls>