diff --git a/demos/STM32/RT-STM32H743I-NUCLEO144/debug/RT-STM32H743I-NUCLEO144 (OpenOCD, Flash and Run).launch b/demos/STM32/RT-STM32H743I-NUCLEO144/debug/RT-STM32H743I-NUCLEO144 (OpenOCD, Flash and Run).launch
index 798eef66e..fa9261ad2 100644
--- a/demos/STM32/RT-STM32H743I-NUCLEO144/debug/RT-STM32H743I-NUCLEO144 (OpenOCD, Flash and Run).launch	
+++ b/demos/STM32/RT-STM32H743I-NUCLEO144/debug/RT-STM32H743I-NUCLEO144 (OpenOCD, Flash and Run).launch	
@@ -33,7 +33,7 @@
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 <stringAttribute key="org.eclipse.cdt.launch.DEBUGGER_REGISTER_GROUPS" value=""/>
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 <stringAttribute key="org.eclipse.cdt.launch.GLOBAL_VARIABLES" value="&lt;?xml version=&quot;1.0&quot; encoding=&quot;UTF-8&quot; standalone=&quot;no&quot;?&gt;&#10;&lt;globalVariableList/&gt;&#10;"/>
 <stringAttribute key="org.eclipse.cdt.launch.MEMORY_BLOCKS" value="&lt;?xml version=&quot;1.0&quot; encoding=&quot;UTF-8&quot; standalone=&quot;no&quot;?&gt;&#10;&lt;memoryBlockExpressionList&gt;&#10;&lt;memoryBlockExpressionItem&gt;&#10;&lt;expression text=&quot;0x0&quot;/&gt;&#10;&lt;/memoryBlockExpressionItem&gt;&#10;&lt;memoryBlockExpressionItem&gt;&#10;&lt;expression text=&quot;0x11087000&quot;/&gt;&#10;&lt;/memoryBlockExpressionItem&gt;&#10;&lt;/memoryBlockExpressionList&gt;&#10;"/>
 <stringAttribute key="org.eclipse.cdt.launch.PROGRAM_NAME" value="./build/ch.elf"/>
diff --git a/demos/STM32/RT-STM32H743I-NUCLEO144/main.c b/demos/STM32/RT-STM32H743I-NUCLEO144/main.c
index c070cd9a9..13849bd2b 100644
--- a/demos/STM32/RT-STM32H743I-NUCLEO144/main.c
+++ b/demos/STM32/RT-STM32H743I-NUCLEO144/main.c
@@ -29,9 +29,9 @@ static THD_FUNCTION(Thread1, arg) {
   (void)arg;
   chRegSetThreadName("blinker");
   while (true) {
-    palSetLine(LINE_ARD_D13);
+    palSetLine(LINE_ZIO_D33);
     chThdSleepMilliseconds(500);
-    palClearLine(LINE_ARD_D13);
+    palClearLine(LINE_ZIO_D33);
     chThdSleepMilliseconds(500);
   }
 }
@@ -51,12 +51,6 @@ int main(void) {
   halInit();
   chSysInit();
 
-  /*
-   * ARD_D13 is programmed as output (board LED).
-   */
-  palClearLine(LINE_ARD_D13);
-  palSetLineMode(LINE_ARD_D13, PAL_MODE_OUTPUT_PUSHPULL);
-
   /*
    * Activates the serial driver 1 using the driver default configuration.
    */
diff --git a/demos/STM32/RT-STM32H743I-NUCLEO144/mcuconf.h b/demos/STM32/RT-STM32H743I-NUCLEO144/mcuconf.h
index 39359e7c6..d317d47f6 100644
--- a/demos/STM32/RT-STM32H743I-NUCLEO144/mcuconf.h
+++ b/demos/STM32/RT-STM32H743I-NUCLEO144/mcuconf.h
@@ -102,10 +102,6 @@
 #define STM32_PLL3_DIVP_VALUE               2
 #define STM32_PLL3_DIVQ_VALUE               8
 #define STM32_PLL3_DIVR_VALUE               8
-#define STM32_MCO1SEL                       STM32_MCO1SEL_HSI_CK
-#define STM32_MCO1PRE_VALUE                 4
-#define STM32_MCO2SEL                       STM32_MCO2SEL_SYS_CK
-#define STM32_MCO2PRE_VALUE                 4
 
 /*
  * Core clocks dynamic settings (can be changed at runtime).
@@ -124,6 +120,10 @@
  * Peripherals clocks static settings.
  * Reading STM32 Reference Manual is required.
  */
+#define STM32_MCO1SEL                       STM32_MCO1SEL_HSI_CK
+#define STM32_MCO1PRE_VALUE                 4
+#define STM32_MCO2SEL                       STM32_MCO2SEL_SYS_CK
+#define STM32_MCO2PRE_VALUE                 4
 #define STM32_CKPERSEL                      STM32_CKPERSEL_HSE_CK
 #define STM32_SDMMCSEL                      STM32_SDMMCSEL_PLL1_Q_CK
 #define STM32_QSPISEL                       STM32_QSPISEL_HCLK
diff --git a/os/hal/boards/ST_NUCLEO144_H743ZI/board.c b/os/hal/boards/ST_NUCLEO144_H743ZI/board.c
index 5ee0873d7..7173084e8 100644
--- a/os/hal/boards/ST_NUCLEO144_H743ZI/board.c
+++ b/os/hal/boards/ST_NUCLEO144_H743ZI/board.c
@@ -155,8 +155,8 @@ static void stm32_gpio_init(void) {
 
   /* Enabling GPIO-related clocks, the mask comes from the
      registry header file.*/
-  rccResetAHB1(STM32_GPIO_EN_MASK);
-  rccEnableAHB1(STM32_GPIO_EN_MASK, true);
+  rccResetAHB4(STM32_GPIO_EN_MASK);
+  rccEnableAHB4(STM32_GPIO_EN_MASK, true);
 
   /* Initializing all the defined GPIO ports.*/
 #if STM32_HAS_GPIOA
diff --git a/os/hal/ports/STM32/LLD/GPIOv2/stm32_gpio.h b/os/hal/ports/STM32/LLD/GPIOv2/stm32_gpio.h
index acc5324e3..5dec0825d 100644
--- a/os/hal/ports/STM32/LLD/GPIOv2/stm32_gpio.h
+++ b/os/hal/ports/STM32/LLD/GPIOv2/stm32_gpio.h
@@ -96,7 +96,6 @@ typedef struct {
   volatile uint32_t     LOCKR;
   volatile uint32_t     AFRL;
   volatile uint32_t     AFRH;
-  volatile uint32_t     BRR;
 } stm32_gpio_t;
 
 /*===========================================================================*/
diff --git a/os/hal/ports/STM32/STM32H7xx/hal_lld.h b/os/hal/ports/STM32/STM32H7xx/hal_lld.h
index 9f9818f18..639269b05 100644
--- a/os/hal/ports/STM32/STM32H7xx/hal_lld.h
+++ b/os/hal/ports/STM32/STM32H7xx/hal_lld.h
@@ -1607,8 +1607,7 @@
 /**
  * @brief   PLL2 DIVP field.
  */
-#if ((STM32_PLL2_DIVP_VALUE >= 2) && (STM32_PLL2_DIVP_VALUE <= 128) &&      \
-     ((STM32_PLL2_DIVP_VALUE & 1U) == 0U)) ||                               \
+#if ((STM32_PLL2_DIVP_VALUE >= 2) && (STM32_PLL2_DIVP_VALUE <= 128)) ||     \
     defined(__DOXYGEN__)
 #define STM32_PLL2_DIVP             ((STM32_PLL2_DIVP_VALUE - 1U) << 9U)
 #else
@@ -1618,8 +1617,7 @@
 /**
  * @brief   PLL3 DIVP field.
  */
-#if ((STM32_PLL3_DIVP_VALUE >= 2) && (STM32_PLL3_DIVP_VALUE <= 128) &&      \
-     ((STM32_PLL3_DIVP_VALUE & 1U) == 0U)) ||                               \
+#if ((STM32_PLL3_DIVP_VALUE >= 2) && (STM32_PLL3_DIVP_VALUE <= 128)) ||     \
     defined(__DOXYGEN__)
 #define STM32_PLL3_DIVP             ((STM32_PLL3_DIVP_VALUE - 1U) << 9U)
 #else