diff --git a/libraries/AP_HAL_ChibiOS/hwdef/CubeOrangePlus/hwdef-bl.dat b/libraries/AP_HAL_ChibiOS/hwdef/CubeOrangePlus/hwdef-bl.dat
index 86d0a0f042..d9311fb299 100644
--- a/libraries/AP_HAL_ChibiOS/hwdef/CubeOrangePlus/hwdef-bl.dat
+++ b/libraries/AP_HAL_ChibiOS/hwdef/CubeOrangePlus/hwdef-bl.dat
@@ -7,6 +7,12 @@ undef USB_STRING_PRODUCT
 undef USB_STRING_MANUFACTURER
 undef APJ_BOARD_ID
 undef USB_PRODUCT
+undef MCU
+
+# MCU class and specific type
+MCU STM32H7xx STM32H757xx
+define CORE_CM7
+define SMPS_PWR
 
 # USB setup
 USB_PRODUCT 0x1058
diff --git a/libraries/AP_HAL_ChibiOS/hwdef/CubeOrangePlus/hwdef.dat b/libraries/AP_HAL_ChibiOS/hwdef/CubeOrangePlus/hwdef.dat
index c0fff5ff8a..984aed5405 100644
--- a/libraries/AP_HAL_ChibiOS/hwdef/CubeOrangePlus/hwdef.dat
+++ b/libraries/AP_HAL_ChibiOS/hwdef/CubeOrangePlus/hwdef.dat
@@ -6,6 +6,12 @@ undef USB_STRING_PRODUCT
 undef USB_STRING_MANUFACTURER
 undef APJ_BOARD_ID
 undef USB_PRODUCT
+undef MCU
+
+# MCU class and specific type
+MCU STM32H7xx STM32H757xx
+define CORE_CM7
+define SMPS_PWR
 
 # USB setup
 USB_PRODUCT 0x1058