diff --git a/demos/STM32/NIL-STM32H755ZI-NUCLEO144/cfg/mcuconf.h b/demos/STM32/NIL-STM32H755ZI-NUCLEO144/cfg/mcuconf.h
index e8dc228e2..a81fd5f80 100644
--- a/demos/STM32/NIL-STM32H755ZI-NUCLEO144/cfg/mcuconf.h
+++ b/demos/STM32/NIL-STM32H755ZI-NUCLEO144/cfg/mcuconf.h
@@ -123,11 +123,11 @@
 #define STM32_SW                            STM32_SW_PLL1_P_CK
 #define STM32_RTCSEL                        STM32_RTCSEL_LSE_CK
 #define STM32_D1CPRE                        STM32_D1CPRE_DIV1
-#define STM32_D1HPRE                        STM32_D1HPRE_DIV4
-#define STM32_D1PPRE3                       STM32_D1PPRE3_DIV1
-#define STM32_D2PPRE1                       STM32_D2PPRE1_DIV1
-#define STM32_D2PPRE2                       STM32_D2PPRE2_DIV1
-#define STM32_D3PPRE4                       STM32_D3PPRE4_DIV1
+#define STM32_D1HPRE                        STM32_D1HPRE_DIV2
+#define STM32_D1PPRE3                       STM32_D1PPRE3_DIV2
+#define STM32_D2PPRE1                       STM32_D2PPRE1_DIV2
+#define STM32_D2PPRE2                       STM32_D2PPRE2_DIV2
+#define STM32_D3PPRE4                       STM32_D3PPRE4_DIV2
 
 /*
  * Peripherals clocks static settings.
diff --git a/demos/STM32/RT-STM32H723ZG-NUCLEO144/cfg/mcuconf.h b/demos/STM32/RT-STM32H723ZG-NUCLEO144/cfg/mcuconf.h
index 076cf15bb..aa839592b 100644
--- a/demos/STM32/RT-STM32H723ZG-NUCLEO144/cfg/mcuconf.h
+++ b/demos/STM32/RT-STM32H723ZG-NUCLEO144/cfg/mcuconf.h
@@ -118,11 +118,11 @@
 #define STM32_SW                            STM32_SW_PLL1_P_CK
 #define STM32_RTCSEL                        STM32_RTCSEL_LSE_CK
 #define STM32_D1CPRE                        STM32_D1CPRE_DIV1
-#define STM32_D1HPRE                        STM32_D1HPRE_DIV4
-#define STM32_D1PPRE3                       STM32_D1PPRE3_DIV1
-#define STM32_D2PPRE1                       STM32_D2PPRE1_DIV1
-#define STM32_D2PPRE2                       STM32_D2PPRE2_DIV1
-#define STM32_D3PPRE4                       STM32_D3PPRE4_DIV1
+#define STM32_D1HPRE                        STM32_D1HPRE_DIV2
+#define STM32_D1PPRE3                       STM32_D1PPRE3_DIV2
+#define STM32_D2PPRE1                       STM32_D2PPRE1_DIV2
+#define STM32_D2PPRE2                       STM32_D2PPRE2_DIV2
+#define STM32_D3PPRE4                       STM32_D3PPRE4_DIV2
 
 /*
  * Peripherals clocks static settings.
diff --git a/demos/STM32/RT-STM32H735IG-DISCOVERY/cfg/mcuconf.h b/demos/STM32/RT-STM32H735IG-DISCOVERY/cfg/mcuconf.h
index 0cbc56166..f2e551f05 100644
--- a/demos/STM32/RT-STM32H735IG-DISCOVERY/cfg/mcuconf.h
+++ b/demos/STM32/RT-STM32H735IG-DISCOVERY/cfg/mcuconf.h
@@ -118,11 +118,11 @@
 #define STM32_SW                            STM32_SW_PLL1_P_CK
 #define STM32_RTCSEL                        STM32_RTCSEL_LSE_CK
 #define STM32_D1CPRE                        STM32_D1CPRE_DIV1
-#define STM32_D1HPRE                        STM32_D1HPRE_DIV4
-#define STM32_D1PPRE3                       STM32_D1PPRE3_DIV1
-#define STM32_D2PPRE1                       STM32_D2PPRE1_DIV1
-#define STM32_D2PPRE2                       STM32_D2PPRE2_DIV1
-#define STM32_D3PPRE4                       STM32_D3PPRE4_DIV1
+#define STM32_D1HPRE                        STM32_D1HPRE_DIV2
+#define STM32_D1PPRE3                       STM32_D1PPRE3_DIV2
+#define STM32_D2PPRE1                       STM32_D2PPRE1_DIV2
+#define STM32_D2PPRE2                       STM32_D2PPRE2_DIV2
+#define STM32_D3PPRE4                       STM32_D3PPRE4_DIV2
 
 /*
  * Peripherals clocks static settings.
diff --git a/demos/STM32/RT-STM32H755ZI-NUCLEO144/cfg/mcuconf.h b/demos/STM32/RT-STM32H755ZI-NUCLEO144/cfg/mcuconf.h
index aca1b8a72..c94de6b3b 100644
--- a/demos/STM32/RT-STM32H755ZI-NUCLEO144/cfg/mcuconf.h
+++ b/demos/STM32/RT-STM32H755ZI-NUCLEO144/cfg/mcuconf.h
@@ -123,11 +123,11 @@
 #define STM32_SW                            STM32_SW_PLL1_P_CK
 #define STM32_RTCSEL                        STM32_RTCSEL_LSE_CK
 #define STM32_D1CPRE                        STM32_D1CPRE_DIV1
-#define STM32_D1HPRE                        STM32_D1HPRE_DIV4
-#define STM32_D1PPRE3                       STM32_D1PPRE3_DIV1
-#define STM32_D2PPRE1                       STM32_D2PPRE1_DIV1
-#define STM32_D2PPRE2                       STM32_D2PPRE2_DIV1
-#define STM32_D3PPRE4                       STM32_D3PPRE4_DIV1
+#define STM32_D1HPRE                        STM32_D1HPRE_DIV2
+#define STM32_D1PPRE3                       STM32_D1PPRE3_DIV2
+#define STM32_D2PPRE1                       STM32_D2PPRE1_DIV2
+#define STM32_D2PPRE2                       STM32_D2PPRE2_DIV2
+#define STM32_D3PPRE4                       STM32_D3PPRE4_DIV2
 
 /*
  * Peripherals clocks static settings.
diff --git a/demos/STM32/RT-STM32H755ZI_M4-NUCLEO144/cfg/mcuconf.h b/demos/STM32/RT-STM32H755ZI_M4-NUCLEO144/cfg/mcuconf.h
index f4479fe88..39f07abc0 100644
--- a/demos/STM32/RT-STM32H755ZI_M4-NUCLEO144/cfg/mcuconf.h
+++ b/demos/STM32/RT-STM32H755ZI_M4-NUCLEO144/cfg/mcuconf.h
@@ -123,11 +123,11 @@
 #define STM32_SW                            STM32_SW_PLL1_P_CK
 #define STM32_RTCSEL                        STM32_RTCSEL_LSE_CK
 #define STM32_D1CPRE                        STM32_D1CPRE_DIV1
-#define STM32_D1HPRE                        STM32_D1HPRE_DIV4
-#define STM32_D1PPRE3                       STM32_D1PPRE3_DIV1
-#define STM32_D2PPRE1                       STM32_D2PPRE1_DIV1
-#define STM32_D2PPRE2                       STM32_D2PPRE2_DIV1
-#define STM32_D3PPRE4                       STM32_D3PPRE4_DIV1
+#define STM32_D1HPRE                        STM32_D1HPRE_DIV2
+#define STM32_D1PPRE3                       STM32_D1PPRE3_DIV2
+#define STM32_D2PPRE1                       STM32_D2PPRE1_DIV2
+#define STM32_D2PPRE2                       STM32_D2PPRE2_DIV2
+#define STM32_D3PPRE4                       STM32_D3PPRE4_DIV2
 
 /*
  * Peripherals clocks static settings.