From eb7259bc370e3b8b89663ef50b863301c892ee24 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Niccol=C3=B2=20Betto?= <niccolo.betto@skywarder.eu>
Date: Mon, 20 Nov 2023 14:42:41 +0100
Subject: [PATCH] [USART] Allow override of USARTx_IRQHandlers

Accomplished through removing all the weak definitions of the USART
IRQs, and making the default IRQ handlers weak themselves. This allows
redefining the IRQ handlers to override them in code outside Miosix.
---
 miosix/arch/common/drivers/serial_stm32.cpp      |  8 ++++----
 .../core/stage_1_boot.cpp                        |  6 +++---
 .../stm32f100c8_microboard/core/stage_1_boot.cpp |  6 +++---
 .../core/stage_1_boot.cpp                        |  6 +++---
 .../stm32f100cb_tempsensor/core/stage_1_boot.cpp |  6 +++---
 .../stm32f100cx_generic/core/stage_1_boot.cpp    |  6 +++---
 .../core/stage_1_boot.cpp                        |  6 +++---
 .../core/stage_1_boot.cpp                        | 10 +++++-----
 .../stm32f103c8_breakout/core/stage_1_boot.cpp   |  6 +++---
 .../core/stage_1_boot.cpp                        |  6 +++---
 .../stm32f103cx_generic/core/stage_1_boot.cpp    |  6 +++---
 .../stm32f103ve_mp3v2/core/stage_1_boot.cpp      | 10 +++++-----
 .../core/stage_1_boot.cpp                        | 10 +++++-----
 .../stm32f103ze_redbull_v2/core/stage_1_boot.cpp | 10 +++++-----
 .../core/stage_1_boot.cpp                        | 10 +++++-----
 .../stm32f205_generic/core/stage_1_boot.cpp      | 12 ++++++------
 .../core/stage_1_boot.cpp                        | 12 ++++++------
 .../core/stage_1_boot.cpp                        | 12 ++++++------
 .../core/stage_1_boot.cpp                        | 12 ++++++------
 .../core/stage_1_boot.cpp                        | 12 ++++++------
 .../stm32f207zg_EthBoardV2/core/stage_1_boot.cpp | 12 ++++++------
 .../stm32f207zg_nucleo/core/stage_1_boot.cpp     | 12 ++++++------
 .../core/stage_1_boot.cpp                        |  6 +++---
 .../atsam4lc2aa_generic/core/stage_1_boot.cpp    |  6 +++---
 .../core/stage_1_boot.cpp                        | 10 +++++-----
 .../stm32f401re_nucleo/core/stage_1_boot.cpp     |  6 +++---
 .../core/stage_1_boot.cpp                        |  6 +++---
 .../stm32f407vg_bitsboard/core/stage_1_boot.cpp  | 12 ++++++------
 .../core/stage_1_boot.cpp                        | 12 ++++++------
 .../core/stage_1_boot.cpp                        | 12 ++++++------
 .../stm32f411ce_blackpill/core/stage_1_boot.cpp  |  6 +++---
 .../stm32f411re_nucleo/core/stage_1_boot.cpp     |  6 +++---
 .../stm32f429zi_oledboard2/core/stage_1_boot.cpp | 16 ++++++++--------
 .../core/stage_1_boot.cpp                        | 16 ++++++++--------
 .../core/stage_1_boot.cpp                        | 16 ++++++++--------
 .../core/stage_1_boot.cpp                        | 16 ++++++++--------
 .../core/stage_1_boot.cpp                        | 16 ++++++++--------
 .../stm32l476rg_nucleo/core/stage_1_boot.cpp     | 10 +++++-----
 .../stm32l4r9zi_sensortile/core/stage_1_boot.cpp | 10 +++++-----
 .../stm32f746zg_nucleo/core/stage_1_boot.cpp     | 16 ++++++++--------
 .../stm32f767zi_nucleo/core/stage_1_boot.cpp     | 16 ++++++++--------
 .../stm32f769ni_discovery/core/stage_1_boot.cpp  | 16 ++++++++--------
 .../stm32h753xi_eval/core/stage_1_boot.cpp       | 16 ++++++++--------
 43 files changed, 221 insertions(+), 221 deletions(-)

diff --git a/miosix/arch/common/drivers/serial_stm32.cpp b/miosix/arch/common/drivers/serial_stm32.cpp
index 4c5448e8..422bd1a9 100644
--- a/miosix/arch/common/drivers/serial_stm32.cpp
+++ b/miosix/arch/common/drivers/serial_stm32.cpp
@@ -73,7 +73,7 @@ void __attribute__((noinline)) usart1irqImpl()
 /**
  * \internal interrupt routine for usart1
  */
-void __attribute__((naked)) USART1_IRQHandler()
+void __attribute__((naked, weak)) USART1_IRQHandler()
 {
     saveContext();
     asm volatile("bl _Z13usart1irqImplv");
@@ -93,7 +93,7 @@ void __attribute__((noinline)) usart2irqImpl()
 /**
  * \internal interrupt routine for usart2
  */
-void __attribute__((naked)) USART2_IRQHandler()
+void __attribute__((naked, weak)) USART2_IRQHandler()
 {
     saveContext();
     asm volatile("bl _Z13usart2irqImplv");
@@ -113,14 +113,14 @@ void __attribute__((noinline)) usart3irqImpl()
  * \internal interrupt routine for usart3
  */
 #if !defined(STM32F072xB)
-void __attribute__((naked)) USART3_IRQHandler()
+void __attribute__((naked, weak)) USART3_IRQHandler()
 {
     saveContext();
     asm volatile("bl _Z13usart3irqImplv");
     restoreContext();
 }
 #else  //!defined(STM32F072xB)
-void __attribute__((naked)) USART3_4_IRQHandler()
+void __attribute__((naked, weak)) USART3_4_IRQHandler()
 {
     saveContext();
     asm volatile("bl _Z13usart3irqImplv");
diff --git a/miosix/arch/cortexM0_stm32f0/stm32f072rb_stm32f0discovery/core/stage_1_boot.cpp b/miosix/arch/cortexM0_stm32f0/stm32f072rb_stm32f0discovery/core/stage_1_boot.cpp
index 5186ae08..31e682ca 100644
--- a/miosix/arch/cortexM0_stm32f0/stm32f072rb_stm32f0discovery/core/stage_1_boot.cpp
+++ b/miosix/arch/cortexM0_stm32f0/stm32f072rb_stm32f0discovery/core/stage_1_boot.cpp
@@ -225,8 +225,8 @@ void (* const __Vectors[])() __attribute__ ((section(".isr_vector"))) =
 #pragma weak I2C2_IRQHandler = Default_Handler
 #pragma weak SPI1_IRQHandler = Default_Handler
 #pragma weak SPI2_IRQHandler = Default_Handler
-#pragma weak USART1_IRQHandler = Default_Handler
-#pragma weak USART2_IRQHandler = Default_Handler
-#pragma weak USART3_4_IRQHandler = Default_Handler
+// #pragma weak USART1_IRQHandler = Default_Handler
+// #pragma weak USART2_IRQHandler = Default_Handler
+// #pragma weak USART3_4_IRQHandler = Default_Handler
 #pragma weak CEC_CAN_IRQHandler = Default_Handler
 #pragma weak USB_IRQHandler = Default_Handler
diff --git a/miosix/arch/cortexM3_stm32f1/stm32f100c8_microboard/core/stage_1_boot.cpp b/miosix/arch/cortexM3_stm32f1/stm32f100c8_microboard/core/stage_1_boot.cpp
index daa7dbf6..dd99c7e3 100644
--- a/miosix/arch/cortexM3_stm32f1/stm32f100c8_microboard/core/stage_1_boot.cpp
+++ b/miosix/arch/cortexM3_stm32f1/stm32f100c8_microboard/core/stage_1_boot.cpp
@@ -271,9 +271,9 @@ void (* const __Vectors[])() __attribute__ ((section(".isr_vector"))) =
 #pragma weak I2C2_ER_IRQHandler = Default_Handler
 #pragma weak SPI1_IRQHandler = Default_Handler
 #pragma weak SPI2_IRQHandler = Default_Handler
-#pragma weak USART1_IRQHandler = Default_Handler
-#pragma weak USART2_IRQHandler = Default_Handler
-#pragma weak USART3_IRQHandler = Default_Handler
+// #pragma weak USART1_IRQHandler = Default_Handler
+// #pragma weak USART2_IRQHandler = Default_Handler
+// #pragma weak USART3_IRQHandler = Default_Handler
 #pragma weak EXTI15_10_IRQHandler = Default_Handler
 #pragma weak RTCAlarm_IRQHandler = Default_Handler
 #pragma weak CEC_IRQHandler = Default_Handler
diff --git a/miosix/arch/cortexM3_stm32f1/stm32f100c8_vaisala_rs41/core/stage_1_boot.cpp b/miosix/arch/cortexM3_stm32f1/stm32f100c8_vaisala_rs41/core/stage_1_boot.cpp
index daa7dbf6..dd99c7e3 100644
--- a/miosix/arch/cortexM3_stm32f1/stm32f100c8_vaisala_rs41/core/stage_1_boot.cpp
+++ b/miosix/arch/cortexM3_stm32f1/stm32f100c8_vaisala_rs41/core/stage_1_boot.cpp
@@ -271,9 +271,9 @@ void (* const __Vectors[])() __attribute__ ((section(".isr_vector"))) =
 #pragma weak I2C2_ER_IRQHandler = Default_Handler
 #pragma weak SPI1_IRQHandler = Default_Handler
 #pragma weak SPI2_IRQHandler = Default_Handler
-#pragma weak USART1_IRQHandler = Default_Handler
-#pragma weak USART2_IRQHandler = Default_Handler
-#pragma weak USART3_IRQHandler = Default_Handler
+// #pragma weak USART1_IRQHandler = Default_Handler
+// #pragma weak USART2_IRQHandler = Default_Handler
+// #pragma weak USART3_IRQHandler = Default_Handler
 #pragma weak EXTI15_10_IRQHandler = Default_Handler
 #pragma weak RTCAlarm_IRQHandler = Default_Handler
 #pragma weak CEC_IRQHandler = Default_Handler
diff --git a/miosix/arch/cortexM3_stm32f1/stm32f100cb_tempsensor/core/stage_1_boot.cpp b/miosix/arch/cortexM3_stm32f1/stm32f100cb_tempsensor/core/stage_1_boot.cpp
index daa7dbf6..dd99c7e3 100644
--- a/miosix/arch/cortexM3_stm32f1/stm32f100cb_tempsensor/core/stage_1_boot.cpp
+++ b/miosix/arch/cortexM3_stm32f1/stm32f100cb_tempsensor/core/stage_1_boot.cpp
@@ -271,9 +271,9 @@ void (* const __Vectors[])() __attribute__ ((section(".isr_vector"))) =
 #pragma weak I2C2_ER_IRQHandler = Default_Handler
 #pragma weak SPI1_IRQHandler = Default_Handler
 #pragma weak SPI2_IRQHandler = Default_Handler
-#pragma weak USART1_IRQHandler = Default_Handler
-#pragma weak USART2_IRQHandler = Default_Handler
-#pragma weak USART3_IRQHandler = Default_Handler
+// #pragma weak USART1_IRQHandler = Default_Handler
+// #pragma weak USART2_IRQHandler = Default_Handler
+// #pragma weak USART3_IRQHandler = Default_Handler
 #pragma weak EXTI15_10_IRQHandler = Default_Handler
 #pragma weak RTCAlarm_IRQHandler = Default_Handler
 #pragma weak CEC_IRQHandler = Default_Handler
diff --git a/miosix/arch/cortexM3_stm32f1/stm32f100cx_generic/core/stage_1_boot.cpp b/miosix/arch/cortexM3_stm32f1/stm32f100cx_generic/core/stage_1_boot.cpp
index daa7dbf6..dd99c7e3 100644
--- a/miosix/arch/cortexM3_stm32f1/stm32f100cx_generic/core/stage_1_boot.cpp
+++ b/miosix/arch/cortexM3_stm32f1/stm32f100cx_generic/core/stage_1_boot.cpp
@@ -271,9 +271,9 @@ void (* const __Vectors[])() __attribute__ ((section(".isr_vector"))) =
 #pragma weak I2C2_ER_IRQHandler = Default_Handler
 #pragma weak SPI1_IRQHandler = Default_Handler
 #pragma weak SPI2_IRQHandler = Default_Handler
-#pragma weak USART1_IRQHandler = Default_Handler
-#pragma weak USART2_IRQHandler = Default_Handler
-#pragma weak USART3_IRQHandler = Default_Handler
+// #pragma weak USART1_IRQHandler = Default_Handler
+// #pragma weak USART2_IRQHandler = Default_Handler
+// #pragma weak USART3_IRQHandler = Default_Handler
 #pragma weak EXTI15_10_IRQHandler = Default_Handler
 #pragma weak RTCAlarm_IRQHandler = Default_Handler
 #pragma weak CEC_IRQHandler = Default_Handler
diff --git a/miosix/arch/cortexM3_stm32f1/stm32f100rb_stm32vldiscovery/core/stage_1_boot.cpp b/miosix/arch/cortexM3_stm32f1/stm32f100rb_stm32vldiscovery/core/stage_1_boot.cpp
index daa7dbf6..dd99c7e3 100644
--- a/miosix/arch/cortexM3_stm32f1/stm32f100rb_stm32vldiscovery/core/stage_1_boot.cpp
+++ b/miosix/arch/cortexM3_stm32f1/stm32f100rb_stm32vldiscovery/core/stage_1_boot.cpp
@@ -271,9 +271,9 @@ void (* const __Vectors[])() __attribute__ ((section(".isr_vector"))) =
 #pragma weak I2C2_ER_IRQHandler = Default_Handler
 #pragma weak SPI1_IRQHandler = Default_Handler
 #pragma weak SPI2_IRQHandler = Default_Handler
-#pragma weak USART1_IRQHandler = Default_Handler
-#pragma weak USART2_IRQHandler = Default_Handler
-#pragma weak USART3_IRQHandler = Default_Handler
+// #pragma weak USART1_IRQHandler = Default_Handler
+// #pragma weak USART2_IRQHandler = Default_Handler
+// #pragma weak USART3_IRQHandler = Default_Handler
 #pragma weak EXTI15_10_IRQHandler = Default_Handler
 #pragma weak RTCAlarm_IRQHandler = Default_Handler
 #pragma weak CEC_IRQHandler = Default_Handler
diff --git a/miosix/arch/cortexM3_stm32f1/stm32f100rc_solertegiard/core/stage_1_boot.cpp b/miosix/arch/cortexM3_stm32f1/stm32f100rc_solertegiard/core/stage_1_boot.cpp
index ff462441..13fb3fff 100644
--- a/miosix/arch/cortexM3_stm32f1/stm32f100rc_solertegiard/core/stage_1_boot.cpp
+++ b/miosix/arch/cortexM3_stm32f1/stm32f100rc_solertegiard/core/stage_1_boot.cpp
@@ -289,9 +289,9 @@ void (* const __Vectors[])() __attribute__ ((section(".isr_vector"))) =
 #pragma weak I2C2_ER_IRQHandler = Default_Handler
 #pragma weak SPI1_IRQHandler = Default_Handler
 #pragma weak SPI2_IRQHandler = Default_Handler
-#pragma weak USART1_IRQHandler = Default_Handler
-#pragma weak USART2_IRQHandler = Default_Handler
-#pragma weak USART3_IRQHandler = Default_Handler
+// #pragma weak USART1_IRQHandler = Default_Handler
+// #pragma weak USART2_IRQHandler = Default_Handler
+// #pragma weak USART3_IRQHandler = Default_Handler
 #pragma weak EXTI15_10_IRQHandler = Default_Handler
 #pragma weak RTC_Alarm_IRQHandler = Default_Handler
 #pragma weak CEC_IRQHandler = Default_Handler
@@ -300,8 +300,8 @@ void (* const __Vectors[])() __attribute__ ((section(".isr_vector"))) =
 #pragma weak TIM14_IRQHandler = Default_Handler
 #pragma weak TIM5_IRQHandler = Default_Handler
 #pragma weak SPI3_IRQHandler = Default_Handler
-#pragma weak UART4_IRQHandler = Default_Handler
-#pragma weak UART5_IRQHandler = Default_Handler
+// #pragma weak UART4_IRQHandler = Default_Handler
+// #pragma weak UART5_IRQHandler = Default_Handler
 #pragma weak TIM6_DAC_IRQHandler = Default_Handler
 #pragma weak TIM7_IRQHandler = Default_Handler
 #pragma weak DMA2_Channel1_IRQHandler = Default_Handler
diff --git a/miosix/arch/cortexM3_stm32f1/stm32f103c8_breakout/core/stage_1_boot.cpp b/miosix/arch/cortexM3_stm32f1/stm32f103c8_breakout/core/stage_1_boot.cpp
index b763b45c..1a9d3165 100644
--- a/miosix/arch/cortexM3_stm32f1/stm32f103c8_breakout/core/stage_1_boot.cpp
+++ b/miosix/arch/cortexM3_stm32f1/stm32f103c8_breakout/core/stage_1_boot.cpp
@@ -261,9 +261,9 @@ void (* const __Vectors[])() __attribute__ ((section(".isr_vector"))) =
 #pragma weak I2C2_ER_IRQHandler = Default_Handler
 #pragma weak SPI1_IRQHandler = Default_Handler
 #pragma weak SPI2_IRQHandler = Default_Handler
-#pragma weak USART1_IRQHandler = Default_Handler
-#pragma weak USART2_IRQHandler = Default_Handler
-#pragma weak USART3_IRQHandler = Default_Handler
+// #pragma weak USART1_IRQHandler = Default_Handler
+// #pragma weak USART2_IRQHandler = Default_Handler
+// #pragma weak USART3_IRQHandler = Default_Handler
 #pragma weak EXTI15_10_IRQHandler = Default_Handler
 #pragma weak RTC_Alarm_IRQHandler = Default_Handler
 #pragma weak USBWakeUp_IRQHandler = Default_Handler
diff --git a/miosix/arch/cortexM3_stm32f1/stm32f103cb_als_mainboard_rev2/core/stage_1_boot.cpp b/miosix/arch/cortexM3_stm32f1/stm32f103cb_als_mainboard_rev2/core/stage_1_boot.cpp
index 7c8cba6c..7a188a25 100644
--- a/miosix/arch/cortexM3_stm32f1/stm32f103cb_als_mainboard_rev2/core/stage_1_boot.cpp
+++ b/miosix/arch/cortexM3_stm32f1/stm32f103cb_als_mainboard_rev2/core/stage_1_boot.cpp
@@ -262,9 +262,9 @@ void (* const __Vectors[])() __attribute__ ((section(".isr_vector"))) =
 #pragma weak I2C2_ER_IRQHandler = Default_Handler
 #pragma weak SPI1_IRQHandler = Default_Handler
 #pragma weak SPI2_IRQHandler = Default_Handler
-#pragma weak USART1_IRQHandler = Default_Handler
-#pragma weak USART2_IRQHandler = Default_Handler
-#pragma weak USART3_IRQHandler = Default_Handler
+// #pragma weak USART1_IRQHandler = Default_Handler
+// #pragma weak USART2_IRQHandler = Default_Handler
+// #pragma weak USART3_IRQHandler = Default_Handler
 #pragma weak EXTI15_10_IRQHandler = Default_Handler
 #pragma weak RTCAlarm_IRQHandler = Default_Handler
 #pragma weak USBWakeUp_IRQHandler = Default_Handler
diff --git a/miosix/arch/cortexM3_stm32f1/stm32f103cx_generic/core/stage_1_boot.cpp b/miosix/arch/cortexM3_stm32f1/stm32f103cx_generic/core/stage_1_boot.cpp
index 7c8cba6c..7a188a25 100644
--- a/miosix/arch/cortexM3_stm32f1/stm32f103cx_generic/core/stage_1_boot.cpp
+++ b/miosix/arch/cortexM3_stm32f1/stm32f103cx_generic/core/stage_1_boot.cpp
@@ -262,9 +262,9 @@ void (* const __Vectors[])() __attribute__ ((section(".isr_vector"))) =
 #pragma weak I2C2_ER_IRQHandler = Default_Handler
 #pragma weak SPI1_IRQHandler = Default_Handler
 #pragma weak SPI2_IRQHandler = Default_Handler
-#pragma weak USART1_IRQHandler = Default_Handler
-#pragma weak USART2_IRQHandler = Default_Handler
-#pragma weak USART3_IRQHandler = Default_Handler
+// #pragma weak USART1_IRQHandler = Default_Handler
+// #pragma weak USART2_IRQHandler = Default_Handler
+// #pragma weak USART3_IRQHandler = Default_Handler
 #pragma weak EXTI15_10_IRQHandler = Default_Handler
 #pragma weak RTCAlarm_IRQHandler = Default_Handler
 #pragma weak USBWakeUp_IRQHandler = Default_Handler
diff --git a/miosix/arch/cortexM3_stm32f1/stm32f103ve_mp3v2/core/stage_1_boot.cpp b/miosix/arch/cortexM3_stm32f1/stm32f103ve_mp3v2/core/stage_1_boot.cpp
index d1f91b32..4da9c2d7 100644
--- a/miosix/arch/cortexM3_stm32f1/stm32f103ve_mp3v2/core/stage_1_boot.cpp
+++ b/miosix/arch/cortexM3_stm32f1/stm32f103ve_mp3v2/core/stage_1_boot.cpp
@@ -323,9 +323,9 @@ void (* const __Vectors[])() __attribute__ ((section(".isr_vector"))) =
 #pragma weak I2C2_ER_IRQHandler = Default_Handler
 #pragma weak SPI1_IRQHandler = Default_Handler
 #pragma weak SPI2_IRQHandler = Default_Handler
-#pragma weak USART1_IRQHandler = Default_Handler
-#pragma weak USART2_IRQHandler = Default_Handler
-#pragma weak USART3_IRQHandler = Default_Handler
+// #pragma weak USART1_IRQHandler = Default_Handler
+// #pragma weak USART2_IRQHandler = Default_Handler
+// #pragma weak USART3_IRQHandler = Default_Handler
 #pragma weak EXTI15_10_IRQHandler = Default_Handler
 #pragma weak RTCAlarm_IRQHandler = Default_Handler
 #pragma weak USBWakeUp_IRQHandler = Default_Handler
@@ -338,8 +338,8 @@ void (* const __Vectors[])() __attribute__ ((section(".isr_vector"))) =
 #pragma weak SDIO_IRQHandler = Default_Handler
 #pragma weak TIM5_IRQHandler = Default_Handler
 #pragma weak SPI3_IRQHandler = Default_Handler
-#pragma weak UART4_IRQHandler = Default_Handler
-#pragma weak UART5_IRQHandler = Default_Handler
+// #pragma weak UART4_IRQHandler = Default_Handler
+// #pragma weak UART5_IRQHandler = Default_Handler
 #pragma weak TIM6_IRQHandler = Default_Handler
 #pragma weak TIM7_IRQHandler = Default_Handler
 #pragma weak DMA2_Channel1_IRQHandler = Default_Handler
diff --git a/miosix/arch/cortexM3_stm32f1/stm32f103ve_strive_mini/core/stage_1_boot.cpp b/miosix/arch/cortexM3_stm32f1/stm32f103ve_strive_mini/core/stage_1_boot.cpp
index c73356cd..4e8d5096 100644
--- a/miosix/arch/cortexM3_stm32f1/stm32f103ve_strive_mini/core/stage_1_boot.cpp
+++ b/miosix/arch/cortexM3_stm32f1/stm32f103ve_strive_mini/core/stage_1_boot.cpp
@@ -331,9 +331,9 @@ void (* const __Vectors[])() __attribute__ ((section(".isr_vector"))) =
 #pragma weak I2C2_ER_IRQHandler = Default_Handler
 #pragma weak SPI1_IRQHandler = Default_Handler
 #pragma weak SPI2_IRQHandler = Default_Handler
-#pragma weak USART1_IRQHandler = Default_Handler
-#pragma weak USART2_IRQHandler = Default_Handler
-#pragma weak USART3_IRQHandler = Default_Handler
+// #pragma weak USART1_IRQHandler = Default_Handler
+// #pragma weak USART2_IRQHandler = Default_Handler
+// #pragma weak USART3_IRQHandler = Default_Handler
 #pragma weak EXTI15_10_IRQHandler = Default_Handler
 #pragma weak RTCAlarm_IRQHandler = Default_Handler
 #pragma weak USBWakeUp_IRQHandler = Default_Handler
@@ -346,8 +346,8 @@ void (* const __Vectors[])() __attribute__ ((section(".isr_vector"))) =
 #pragma weak SDIO_IRQHandler = Default_Handler
 #pragma weak TIM5_IRQHandler = Default_Handler
 #pragma weak SPI3_IRQHandler = Default_Handler
-#pragma weak UART4_IRQHandler = Default_Handler
-#pragma weak UART5_IRQHandler = Default_Handler
+// #pragma weak UART4_IRQHandler = Default_Handler
+// #pragma weak UART5_IRQHandler = Default_Handler
 #pragma weak TIM6_IRQHandler = Default_Handler
 #pragma weak TIM7_IRQHandler = Default_Handler
 #pragma weak DMA2_Channel1_IRQHandler = Default_Handler
diff --git a/miosix/arch/cortexM3_stm32f1/stm32f103ze_redbull_v2/core/stage_1_boot.cpp b/miosix/arch/cortexM3_stm32f1/stm32f103ze_redbull_v2/core/stage_1_boot.cpp
index f388462c..0473ff25 100644
--- a/miosix/arch/cortexM3_stm32f1/stm32f103ze_redbull_v2/core/stage_1_boot.cpp
+++ b/miosix/arch/cortexM3_stm32f1/stm32f103ze_redbull_v2/core/stage_1_boot.cpp
@@ -337,9 +337,9 @@ void (* const __Vectors[])() __attribute__ ((section(".isr_vector"))) =
 #pragma weak I2C2_ER_IRQHandler = Default_Handler
 #pragma weak SPI1_IRQHandler = Default_Handler
 #pragma weak SPI2_IRQHandler = Default_Handler
-#pragma weak USART1_IRQHandler = Default_Handler
-#pragma weak USART2_IRQHandler = Default_Handler
-#pragma weak USART3_IRQHandler = Default_Handler
+// #pragma weak USART1_IRQHandler = Default_Handler
+// #pragma weak USART2_IRQHandler = Default_Handler
+// #pragma weak USART3_IRQHandler = Default_Handler
 #pragma weak EXTI15_10_IRQHandler = Default_Handler
 #pragma weak RTCAlarm_IRQHandler = Default_Handler
 #pragma weak USBWakeUp_IRQHandler = Default_Handler
@@ -352,8 +352,8 @@ void (* const __Vectors[])() __attribute__ ((section(".isr_vector"))) =
 #pragma weak SDIO_IRQHandler = Default_Handler
 #pragma weak TIM5_IRQHandler = Default_Handler
 #pragma weak SPI3_IRQHandler = Default_Handler
-#pragma weak UART4_IRQHandler = Default_Handler
-#pragma weak UART5_IRQHandler = Default_Handler
+// #pragma weak UART4_IRQHandler = Default_Handler
+// #pragma weak UART5_IRQHandler = Default_Handler
 #pragma weak TIM6_IRQHandler = Default_Handler
 #pragma weak TIM7_IRQHandler = Default_Handler
 #pragma weak DMA2_Channel1_IRQHandler = Default_Handler
diff --git a/miosix/arch/cortexM3_stm32f1/stm32f103ze_stm3210e-eval/core/stage_1_boot.cpp b/miosix/arch/cortexM3_stm32f1/stm32f103ze_stm3210e-eval/core/stage_1_boot.cpp
index e789ff76..4ebcfd5a 100644
--- a/miosix/arch/cortexM3_stm32f1/stm32f103ze_stm3210e-eval/core/stage_1_boot.cpp
+++ b/miosix/arch/cortexM3_stm32f1/stm32f103ze_stm3210e-eval/core/stage_1_boot.cpp
@@ -341,9 +341,9 @@ void (* const __Vectors[])() __attribute__ ((section(".isr_vector"))) =
 #pragma weak I2C2_ER_IRQHandler = Default_Handler
 #pragma weak SPI1_IRQHandler = Default_Handler
 #pragma weak SPI2_IRQHandler = Default_Handler
-#pragma weak USART1_IRQHandler = Default_Handler
-#pragma weak USART2_IRQHandler = Default_Handler
-#pragma weak USART3_IRQHandler = Default_Handler
+// #pragma weak USART1_IRQHandler = Default_Handler
+// #pragma weak USART2_IRQHandler = Default_Handler
+// #pragma weak USART3_IRQHandler = Default_Handler
 #pragma weak EXTI15_10_IRQHandler = Default_Handler
 #pragma weak RTCAlarm_IRQHandler = Default_Handler
 #pragma weak USBWakeUp_IRQHandler = Default_Handler
@@ -356,8 +356,8 @@ void (* const __Vectors[])() __attribute__ ((section(".isr_vector"))) =
 #pragma weak SDIO_IRQHandler = Default_Handler
 #pragma weak TIM5_IRQHandler = Default_Handler
 #pragma weak SPI3_IRQHandler = Default_Handler
-#pragma weak UART4_IRQHandler = Default_Handler
-#pragma weak UART5_IRQHandler = Default_Handler
+// #pragma weak UART4_IRQHandler = Default_Handler
+// #pragma weak UART5_IRQHandler = Default_Handler
 #pragma weak TIM6_IRQHandler = Default_Handler
 #pragma weak TIM7_IRQHandler = Default_Handler
 #pragma weak DMA2_Channel1_IRQHandler = Default_Handler
diff --git a/miosix/arch/cortexM3_stm32f2/stm32f205_generic/core/stage_1_boot.cpp b/miosix/arch/cortexM3_stm32f2/stm32f205_generic/core/stage_1_boot.cpp
index a9a04045..39e54beb 100644
--- a/miosix/arch/cortexM3_stm32f2/stm32f205_generic/core/stage_1_boot.cpp
+++ b/miosix/arch/cortexM3_stm32f2/stm32f205_generic/core/stage_1_boot.cpp
@@ -366,9 +366,9 @@ void (* const __Vectors[])() __attribute__ ((section(".isr_vector"))) =
 #pragma weak I2C2_ER_IRQHandler = Default_Handler
 #pragma weak SPI1_IRQHandler = Default_Handler
 #pragma weak SPI2_IRQHandler = Default_Handler
-#pragma weak USART1_IRQHandler = Default_Handler
-#pragma weak USART2_IRQHandler = Default_Handler
-#pragma weak USART3_IRQHandler = Default_Handler
+// #pragma weak USART1_IRQHandler = Default_Handler
+// #pragma weak USART2_IRQHandler = Default_Handler
+// #pragma weak USART3_IRQHandler = Default_Handler
 #pragma weak EXTI15_10_IRQHandler = Default_Handler
 #pragma weak RTC_Alarm_IRQHandler = Default_Handler
 #pragma weak OTG_FS_WKUP_IRQHandler = Default_Handler
@@ -381,8 +381,8 @@ void (* const __Vectors[])() __attribute__ ((section(".isr_vector"))) =
 #pragma weak SDIO_IRQHandler = Default_Handler
 #pragma weak TIM5_IRQHandler = Default_Handler
 #pragma weak SPI3_IRQHandler = Default_Handler
-#pragma weak UART4_IRQHandler = Default_Handler
-#pragma weak UART5_IRQHandler = Default_Handler
+// #pragma weak UART4_IRQHandler = Default_Handler
+// #pragma weak UART5_IRQHandler = Default_Handler
 #pragma weak TIM6_DAC_IRQHandler = Default_Handler
 #pragma weak TIM7_IRQHandler = Default_Handler
 #pragma weak DMA2_Stream0_IRQHandler = Default_Handler
@@ -400,7 +400,7 @@ void (* const __Vectors[])() __attribute__ ((section(".isr_vector"))) =
 #pragma weak DMA2_Stream5_IRQHandler = Default_Handler
 #pragma weak DMA2_Stream6_IRQHandler = Default_Handler
 #pragma weak DMA2_Stream7_IRQHandler = Default_Handler
-#pragma weak USART6_IRQHandler = Default_Handler
+// #pragma weak USART6_IRQHandler = Default_Handler
 #pragma weak I2C3_EV_IRQHandler = Default_Handler
 #pragma weak I2C3_ER_IRQHandler = Default_Handler
 #pragma weak OTG_HS_EP1_OUT_IRQHandler = Default_Handler
diff --git a/miosix/arch/cortexM3_stm32f2/stm32f205rc_skyward_stormtrooper/core/stage_1_boot.cpp b/miosix/arch/cortexM3_stm32f2/stm32f205rc_skyward_stormtrooper/core/stage_1_boot.cpp
index e4d867df..182b77ff 100644
--- a/miosix/arch/cortexM3_stm32f2/stm32f205rc_skyward_stormtrooper/core/stage_1_boot.cpp
+++ b/miosix/arch/cortexM3_stm32f2/stm32f205rc_skyward_stormtrooper/core/stage_1_boot.cpp
@@ -335,9 +335,9 @@ void (* const __Vectors[])() __attribute__ ((section(".isr_vector"))) =
 #pragma weak I2C2_ER_IRQHandler = Default_Handler
 #pragma weak SPI1_IRQHandler = Default_Handler
 #pragma weak SPI2_IRQHandler = Default_Handler
-#pragma weak USART1_IRQHandler = Default_Handler
-#pragma weak USART2_IRQHandler = Default_Handler
-#pragma weak USART3_IRQHandler = Default_Handler
+// #pragma weak USART1_IRQHandler = Default_Handler
+// #pragma weak USART2_IRQHandler = Default_Handler
+// #pragma weak USART3_IRQHandler = Default_Handler
 #pragma weak EXTI15_10_IRQHandler = Default_Handler
 #pragma weak RTC_Alarm_IRQHandler = Default_Handler
 #pragma weak OTG_FS_WKUP_IRQHandler = Default_Handler
@@ -350,8 +350,8 @@ void (* const __Vectors[])() __attribute__ ((section(".isr_vector"))) =
 #pragma weak SDIO_IRQHandler = Default_Handler
 #pragma weak TIM5_IRQHandler = Default_Handler
 #pragma weak SPI3_IRQHandler = Default_Handler
-#pragma weak UART4_IRQHandler = Default_Handler
-#pragma weak UART5_IRQHandler = Default_Handler
+// #pragma weak UART4_IRQHandler = Default_Handler
+// #pragma weak UART5_IRQHandler = Default_Handler
 #pragma weak TIM6_DAC_IRQHandler = Default_Handler
 #pragma weak TIM7_IRQHandler = Default_Handler
 #pragma weak DMA2_Stream0_IRQHandler = Default_Handler
@@ -367,7 +367,7 @@ void (* const __Vectors[])() __attribute__ ((section(".isr_vector"))) =
 #pragma weak DMA2_Stream5_IRQHandler = Default_Handler
 #pragma weak DMA2_Stream6_IRQHandler = Default_Handler
 #pragma weak DMA2_Stream7_IRQHandler = Default_Handler
-#pragma weak USART6_IRQHandler = Default_Handler
+// #pragma weak USART6_IRQHandler = Default_Handler
 #pragma weak I2C3_EV_IRQHandler = Default_Handler
 #pragma weak I2C3_ER_IRQHandler = Default_Handler
 #pragma weak OTG_HS_EP1_OUT_IRQHandler = Default_Handler
diff --git a/miosix/arch/cortexM3_stm32f2/stm32f205rg_sony-newman/core/stage_1_boot.cpp b/miosix/arch/cortexM3_stm32f2/stm32f205rg_sony-newman/core/stage_1_boot.cpp
index da001959..8a3c130c 100644
--- a/miosix/arch/cortexM3_stm32f2/stm32f205rg_sony-newman/core/stage_1_boot.cpp
+++ b/miosix/arch/cortexM3_stm32f2/stm32f205rg_sony-newman/core/stage_1_boot.cpp
@@ -339,9 +339,9 @@ void (* const __Vectors[])() __attribute__ ((section(".isr_vector"))) =
 #pragma weak I2C2_ER_IRQHandler = Default_Handler
 #pragma weak SPI1_IRQHandler = Default_Handler
 #pragma weak SPI2_IRQHandler = Default_Handler
-#pragma weak USART1_IRQHandler = Default_Handler
-#pragma weak USART2_IRQHandler = Default_Handler
-#pragma weak USART3_IRQHandler = Default_Handler
+// #pragma weak USART1_IRQHandler = Default_Handler
+// #pragma weak USART2_IRQHandler = Default_Handler
+// #pragma weak USART3_IRQHandler = Default_Handler
 #pragma weak EXTI15_10_IRQHandler = Default_Handler
 #pragma weak RTC_Alarm_IRQHandler = Default_Handler
 #pragma weak OTG_FS_WKUP_IRQHandler = Default_Handler
@@ -354,8 +354,8 @@ void (* const __Vectors[])() __attribute__ ((section(".isr_vector"))) =
 #pragma weak SDIO_IRQHandler = Default_Handler
 #pragma weak TIM5_IRQHandler = Default_Handler
 #pragma weak SPI3_IRQHandler = Default_Handler
-#pragma weak UART4_IRQHandler = Default_Handler
-#pragma weak UART5_IRQHandler = Default_Handler
+// #pragma weak UART4_IRQHandler = Default_Handler
+// #pragma weak UART5_IRQHandler = Default_Handler
 #pragma weak TIM6_DAC_IRQHandler = Default_Handler
 #pragma weak TIM7_IRQHandler = Default_Handler
 #pragma weak DMA2_Stream0_IRQHandler = Default_Handler
@@ -373,7 +373,7 @@ void (* const __Vectors[])() __attribute__ ((section(".isr_vector"))) =
 #pragma weak DMA2_Stream5_IRQHandler = Default_Handler
 #pragma weak DMA2_Stream6_IRQHandler = Default_Handler
 #pragma weak DMA2_Stream7_IRQHandler = Default_Handler
-#pragma weak USART6_IRQHandler = Default_Handler
+// #pragma weak USART6_IRQHandler = Default_Handler
 #pragma weak I2C3_EV_IRQHandler = Default_Handler
 #pragma weak I2C3_ER_IRQHandler = Default_Handler
 #pragma weak OTG_HS_EP1_OUT_IRQHandler = Default_Handler
diff --git a/miosix/arch/cortexM3_stm32f2/stm32f207ig_stm3220g-eval/core/stage_1_boot.cpp b/miosix/arch/cortexM3_stm32f2/stm32f207ig_stm3220g-eval/core/stage_1_boot.cpp
index a9a04045..39e54beb 100644
--- a/miosix/arch/cortexM3_stm32f2/stm32f207ig_stm3220g-eval/core/stage_1_boot.cpp
+++ b/miosix/arch/cortexM3_stm32f2/stm32f207ig_stm3220g-eval/core/stage_1_boot.cpp
@@ -366,9 +366,9 @@ void (* const __Vectors[])() __attribute__ ((section(".isr_vector"))) =
 #pragma weak I2C2_ER_IRQHandler = Default_Handler
 #pragma weak SPI1_IRQHandler = Default_Handler
 #pragma weak SPI2_IRQHandler = Default_Handler
-#pragma weak USART1_IRQHandler = Default_Handler
-#pragma weak USART2_IRQHandler = Default_Handler
-#pragma weak USART3_IRQHandler = Default_Handler
+// #pragma weak USART1_IRQHandler = Default_Handler
+// #pragma weak USART2_IRQHandler = Default_Handler
+// #pragma weak USART3_IRQHandler = Default_Handler
 #pragma weak EXTI15_10_IRQHandler = Default_Handler
 #pragma weak RTC_Alarm_IRQHandler = Default_Handler
 #pragma weak OTG_FS_WKUP_IRQHandler = Default_Handler
@@ -381,8 +381,8 @@ void (* const __Vectors[])() __attribute__ ((section(".isr_vector"))) =
 #pragma weak SDIO_IRQHandler = Default_Handler
 #pragma weak TIM5_IRQHandler = Default_Handler
 #pragma weak SPI3_IRQHandler = Default_Handler
-#pragma weak UART4_IRQHandler = Default_Handler
-#pragma weak UART5_IRQHandler = Default_Handler
+// #pragma weak UART4_IRQHandler = Default_Handler
+// #pragma weak UART5_IRQHandler = Default_Handler
 #pragma weak TIM6_DAC_IRQHandler = Default_Handler
 #pragma weak TIM7_IRQHandler = Default_Handler
 #pragma weak DMA2_Stream0_IRQHandler = Default_Handler
@@ -400,7 +400,7 @@ void (* const __Vectors[])() __attribute__ ((section(".isr_vector"))) =
 #pragma weak DMA2_Stream5_IRQHandler = Default_Handler
 #pragma weak DMA2_Stream6_IRQHandler = Default_Handler
 #pragma weak DMA2_Stream7_IRQHandler = Default_Handler
-#pragma weak USART6_IRQHandler = Default_Handler
+// #pragma weak USART6_IRQHandler = Default_Handler
 #pragma weak I2C3_EV_IRQHandler = Default_Handler
 #pragma weak I2C3_ER_IRQHandler = Default_Handler
 #pragma weak OTG_HS_EP1_OUT_IRQHandler = Default_Handler
diff --git a/miosix/arch/cortexM3_stm32f2/stm32f207ze_als_camboard/core/stage_1_boot.cpp b/miosix/arch/cortexM3_stm32f2/stm32f207ze_als_camboard/core/stage_1_boot.cpp
index 98b941e1..13cc1c60 100644
--- a/miosix/arch/cortexM3_stm32f2/stm32f207ze_als_camboard/core/stage_1_boot.cpp
+++ b/miosix/arch/cortexM3_stm32f2/stm32f207ze_als_camboard/core/stage_1_boot.cpp
@@ -364,9 +364,9 @@ void (* const __Vectors[])() __attribute__ ((section(".isr_vector"))) =
 #pragma weak I2C2_ER_IRQHandler = Default_Handler
 #pragma weak SPI1_IRQHandler = Default_Handler
 #pragma weak SPI2_IRQHandler = Default_Handler
-#pragma weak USART1_IRQHandler = Default_Handler
-#pragma weak USART2_IRQHandler = Default_Handler
-#pragma weak USART3_IRQHandler = Default_Handler
+// #pragma weak USART1_IRQHandler = Default_Handler
+// #pragma weak USART2_IRQHandler = Default_Handler
+// #pragma weak USART3_IRQHandler = Default_Handler
 #pragma weak EXTI15_10_IRQHandler = Default_Handler
 #pragma weak RTC_Alarm_IRQHandler = Default_Handler
 #pragma weak OTG_FS_WKUP_IRQHandler = Default_Handler
@@ -379,8 +379,8 @@ void (* const __Vectors[])() __attribute__ ((section(".isr_vector"))) =
 #pragma weak SDIO_IRQHandler = Default_Handler
 #pragma weak TIM5_IRQHandler = Default_Handler
 #pragma weak SPI3_IRQHandler = Default_Handler
-#pragma weak UART4_IRQHandler = Default_Handler
-#pragma weak UART5_IRQHandler = Default_Handler
+// #pragma weak UART4_IRQHandler = Default_Handler
+// #pragma weak UART5_IRQHandler = Default_Handler
 #pragma weak TIM6_DAC_IRQHandler = Default_Handler
 #pragma weak TIM7_IRQHandler = Default_Handler
 #pragma weak DMA2_Stream0_IRQHandler = Default_Handler
@@ -398,7 +398,7 @@ void (* const __Vectors[])() __attribute__ ((section(".isr_vector"))) =
 #pragma weak DMA2_Stream5_IRQHandler = Default_Handler
 #pragma weak DMA2_Stream6_IRQHandler = Default_Handler
 #pragma weak DMA2_Stream7_IRQHandler = Default_Handler
-#pragma weak USART6_IRQHandler = Default_Handler
+// #pragma weak USART6_IRQHandler = Default_Handler
 #pragma weak I2C3_EV_IRQHandler = Default_Handler
 #pragma weak I2C3_ER_IRQHandler = Default_Handler
 #pragma weak OTG_HS_EP1_OUT_IRQHandler = Default_Handler
diff --git a/miosix/arch/cortexM3_stm32f2/stm32f207zg_EthBoardV2/core/stage_1_boot.cpp b/miosix/arch/cortexM3_stm32f2/stm32f207zg_EthBoardV2/core/stage_1_boot.cpp
index 98b941e1..13cc1c60 100644
--- a/miosix/arch/cortexM3_stm32f2/stm32f207zg_EthBoardV2/core/stage_1_boot.cpp
+++ b/miosix/arch/cortexM3_stm32f2/stm32f207zg_EthBoardV2/core/stage_1_boot.cpp
@@ -364,9 +364,9 @@ void (* const __Vectors[])() __attribute__ ((section(".isr_vector"))) =
 #pragma weak I2C2_ER_IRQHandler = Default_Handler
 #pragma weak SPI1_IRQHandler = Default_Handler
 #pragma weak SPI2_IRQHandler = Default_Handler
-#pragma weak USART1_IRQHandler = Default_Handler
-#pragma weak USART2_IRQHandler = Default_Handler
-#pragma weak USART3_IRQHandler = Default_Handler
+// #pragma weak USART1_IRQHandler = Default_Handler
+// #pragma weak USART2_IRQHandler = Default_Handler
+// #pragma weak USART3_IRQHandler = Default_Handler
 #pragma weak EXTI15_10_IRQHandler = Default_Handler
 #pragma weak RTC_Alarm_IRQHandler = Default_Handler
 #pragma weak OTG_FS_WKUP_IRQHandler = Default_Handler
@@ -379,8 +379,8 @@ void (* const __Vectors[])() __attribute__ ((section(".isr_vector"))) =
 #pragma weak SDIO_IRQHandler = Default_Handler
 #pragma weak TIM5_IRQHandler = Default_Handler
 #pragma weak SPI3_IRQHandler = Default_Handler
-#pragma weak UART4_IRQHandler = Default_Handler
-#pragma weak UART5_IRQHandler = Default_Handler
+// #pragma weak UART4_IRQHandler = Default_Handler
+// #pragma weak UART5_IRQHandler = Default_Handler
 #pragma weak TIM6_DAC_IRQHandler = Default_Handler
 #pragma weak TIM7_IRQHandler = Default_Handler
 #pragma weak DMA2_Stream0_IRQHandler = Default_Handler
@@ -398,7 +398,7 @@ void (* const __Vectors[])() __attribute__ ((section(".isr_vector"))) =
 #pragma weak DMA2_Stream5_IRQHandler = Default_Handler
 #pragma weak DMA2_Stream6_IRQHandler = Default_Handler
 #pragma weak DMA2_Stream7_IRQHandler = Default_Handler
-#pragma weak USART6_IRQHandler = Default_Handler
+// #pragma weak USART6_IRQHandler = Default_Handler
 #pragma weak I2C3_EV_IRQHandler = Default_Handler
 #pragma weak I2C3_ER_IRQHandler = Default_Handler
 #pragma weak OTG_HS_EP1_OUT_IRQHandler = Default_Handler
diff --git a/miosix/arch/cortexM3_stm32f2/stm32f207zg_nucleo/core/stage_1_boot.cpp b/miosix/arch/cortexM3_stm32f2/stm32f207zg_nucleo/core/stage_1_boot.cpp
index ccf892d3..c82dd485 100644
--- a/miosix/arch/cortexM3_stm32f2/stm32f207zg_nucleo/core/stage_1_boot.cpp
+++ b/miosix/arch/cortexM3_stm32f2/stm32f207zg_nucleo/core/stage_1_boot.cpp
@@ -366,9 +366,9 @@ void (* const __Vectors[])() __attribute__ ((section(".isr_vector"))) =
 #pragma weak I2C2_ER_IRQHandler = Default_Handler
 #pragma weak SPI1_IRQHandler = Default_Handler
 #pragma weak SPI2_IRQHandler = Default_Handler
-#pragma weak USART1_IRQHandler = Default_Handler
-#pragma weak USART2_IRQHandler = Default_Handler
-#pragma weak USART3_IRQHandler = Default_Handler
+// #pragma weak USART1_IRQHandler = Default_Handler
+// #pragma weak USART2_IRQHandler = Default_Handler
+// #pragma weak USART3_IRQHandler = Default_Handler
 #pragma weak EXTI15_10_IRQHandler = Default_Handler
 #pragma weak RTC_Alarm_IRQHandler = Default_Handler
 #pragma weak OTG_FS_WKUP_IRQHandler = Default_Handler
@@ -381,8 +381,8 @@ void (* const __Vectors[])() __attribute__ ((section(".isr_vector"))) =
 #pragma weak SDIO_IRQHandler = Default_Handler
 #pragma weak TIM5_IRQHandler = Default_Handler
 #pragma weak SPI3_IRQHandler = Default_Handler
-#pragma weak UART4_IRQHandler = Default_Handler
-#pragma weak UART5_IRQHandler = Default_Handler
+// #pragma weak UART4_IRQHandler = Default_Handler
+// #pragma weak UART5_IRQHandler = Default_Handler
 #pragma weak TIM6_DAC_IRQHandler = Default_Handler
 #pragma weak TIM7_IRQHandler = Default_Handler
 #pragma weak DMA2_Stream0_IRQHandler = Default_Handler
@@ -400,7 +400,7 @@ void (* const __Vectors[])() __attribute__ ((section(".isr_vector"))) =
 #pragma weak DMA2_Stream5_IRQHandler = Default_Handler
 #pragma weak DMA2_Stream6_IRQHandler = Default_Handler
 #pragma weak DMA2_Stream7_IRQHandler = Default_Handler
-#pragma weak USART6_IRQHandler = Default_Handler
+// #pragma weak USART6_IRQHandler = Default_Handler
 #pragma weak I2C3_EV_IRQHandler = Default_Handler
 #pragma weak I2C3_ER_IRQHandler = Default_Handler
 #pragma weak OTG_HS_EP1_OUT_IRQHandler = Default_Handler
diff --git a/miosix/arch/cortexM3_stm32l1/stm32l151c8_als_mainboard/core/stage_1_boot.cpp b/miosix/arch/cortexM3_stm32l1/stm32l151c8_als_mainboard/core/stage_1_boot.cpp
index 3a527734..edb253c4 100644
--- a/miosix/arch/cortexM3_stm32l1/stm32l151c8_als_mainboard/core/stage_1_boot.cpp
+++ b/miosix/arch/cortexM3_stm32l1/stm32l151c8_als_mainboard/core/stage_1_boot.cpp
@@ -274,9 +274,9 @@ void (* const __Vectors[])() __attribute__ ((section(".isr_vector"))) =
 #pragma weak I2C2_ER_IRQHandler = Default_Handler
 #pragma weak SPI1_IRQHandler = Default_Handler
 #pragma weak SPI2_IRQHandler = Default_Handler
-#pragma weak USART1_IRQHandler = Default_Handler
-#pragma weak USART2_IRQHandler = Default_Handler
-#pragma weak USART3_IRQHandler = Default_Handler
+// #pragma weak USART1_IRQHandler = Default_Handler
+// #pragma weak USART2_IRQHandler = Default_Handler
+// #pragma weak USART3_IRQHandler = Default_Handler
 #pragma weak EXTI15_10_IRQHandler = Default_Handler
 #pragma weak RTC_Alarm_IRQHandler = Default_Handler
 #pragma weak USB_FS_WKUP_IRQHandler = Default_Handler
diff --git a/miosix/arch/cortexM4_atsam4l/atsam4lc2aa_generic/core/stage_1_boot.cpp b/miosix/arch/cortexM4_atsam4l/atsam4lc2aa_generic/core/stage_1_boot.cpp
index 4b2d5468..290b5038 100644
--- a/miosix/arch/cortexM4_atsam4l/atsam4lc2aa_generic/core/stage_1_boot.cpp
+++ b/miosix/arch/cortexM4_atsam4l/atsam4lc2aa_generic/core/stage_1_boot.cpp
@@ -360,9 +360,9 @@ void (* const __Vectors[])() __attribute__ ((section(".isr_vector"))) =
 #pragma weak TWIM1_Handler = Default_Handler
 #pragma weak TWIS1_Handler = Default_Handler
 #pragma weak USART0_Handler = Default_Handler
-#pragma weak USART1_Handler = Default_Handler
-#pragma weak USART2_Handler = Default_Handler
-#pragma weak USART3_Handler = Default_Handler
+// #pragma weak USART1_Handler = Default_Handler
+// #pragma weak USART2_Handler = Default_Handler
+// #pragma weak USART3_Handler = Default_Handler
 #pragma weak ADCIFE_Handler = Default_Handler
 #pragma weak DACC_Handler = Default_Handler
 #pragma weak ACIFC_Handler = Default_Handler
diff --git a/miosix/arch/cortexM4_stm32f3/stm32f303vc_stm32f3discovery/core/stage_1_boot.cpp b/miosix/arch/cortexM4_stm32f3/stm32f303vc_stm32f3discovery/core/stage_1_boot.cpp
index e544d2ab..6ddde006 100644
--- a/miosix/arch/cortexM4_stm32f3/stm32f303vc_stm32f3discovery/core/stage_1_boot.cpp
+++ b/miosix/arch/cortexM4_stm32f3/stm32f303vc_stm32f3discovery/core/stage_1_boot.cpp
@@ -320,9 +320,9 @@ void (* const __Vectors[])() __attribute__ ((section(".isr_vector"))) =
 #pragma weak I2C2_ER_IRQHandler = Default_Handler
 #pragma weak SPI1_IRQHandler = Default_Handler
 #pragma weak SPI2_IRQHandler = Default_Handler
-#pragma weak USART1_IRQHandler = Default_Handler
-#pragma weak USART2_IRQHandler = Default_Handler
-#pragma weak USART3_IRQHandler = Default_Handler
+// #pragma weak USART1_IRQHandler = Default_Handler
+// #pragma weak USART2_IRQHandler = Default_Handler
+// #pragma weak USART3_IRQHandler = Default_Handler
 #pragma weak EXTI15_10_IRQHandler = Default_Handler
 #pragma weak RTC_Alarm_IRQHandler = Default_Handler
 #pragma weak USBWakeUp_IRQHandler = Default_Handler
@@ -332,8 +332,8 @@ void (* const __Vectors[])() __attribute__ ((section(".isr_vector"))) =
 #pragma weak TIM8_CC_IRQHandler = Default_Handler
 #pragma weak ADC3_IRQHandler = Default_Handler
 #pragma weak SPI3_IRQHandler = Default_Handler
-#pragma weak UART4_IRQHandler = Default_Handler
-#pragma weak UART5_IRQHandler = Default_Handler
+// #pragma weak UART4_IRQHandler = Default_Handler
+// #pragma weak UART5_IRQHandler = Default_Handler
 #pragma weak TIM6_DAC_IRQHandler = Default_Handler
 #pragma weak TIM7_IRQHandler = Default_Handler
 #pragma weak DMA2_Channel1_IRQHandler = Default_Handler
diff --git a/miosix/arch/cortexM4_stm32f4/stm32f401re_nucleo/core/stage_1_boot.cpp b/miosix/arch/cortexM4_stm32f4/stm32f401re_nucleo/core/stage_1_boot.cpp
index 9c2b18f8..aed21829 100644
--- a/miosix/arch/cortexM4_stm32f4/stm32f401re_nucleo/core/stage_1_boot.cpp
+++ b/miosix/arch/cortexM4_stm32f4/stm32f401re_nucleo/core/stage_1_boot.cpp
@@ -306,8 +306,8 @@ void (* const __Vectors[])() __attribute__ ((section(".isr_vector"))) =
 #pragma weak I2C2_ER_IRQHandler = Default_Handler
 #pragma weak SPI1_IRQHandler = Default_Handler
 #pragma weak SPI2_IRQHandler = Default_Handler
-#pragma weak USART1_IRQHandler = Default_Handler
-#pragma weak USART2_IRQHandler = Default_Handler
+// #pragma weak USART1_IRQHandler = Default_Handler
+// #pragma weak USART2_IRQHandler = Default_Handler
 #pragma weak EXTI15_10_IRQHandler = Default_Handler
 #pragma weak RTC_Alarm_IRQHandler = Default_Handler
 #pragma weak OTG_FS_WKUP_IRQHandler = Default_Handler
@@ -324,7 +324,7 @@ void (* const __Vectors[])() __attribute__ ((section(".isr_vector"))) =
 #pragma weak DMA2_Stream5_IRQHandler = Default_Handler
 #pragma weak DMA2_Stream6_IRQHandler = Default_Handler
 #pragma weak DMA2_Stream7_IRQHandler = Default_Handler
-#pragma weak USART6_IRQHandler = Default_Handler
+// #pragma weak USART6_IRQHandler = Default_Handler
 #pragma weak I2C3_EV_IRQHandler = Default_Handler
 #pragma weak I2C3_ER_IRQHandler = Default_Handler
 #pragma weak FPU_IRQHandler = Default_Handler
diff --git a/miosix/arch/cortexM4_stm32f4/stm32f401vc_stm32f4discovery/core/stage_1_boot.cpp b/miosix/arch/cortexM4_stm32f4/stm32f401vc_stm32f4discovery/core/stage_1_boot.cpp
index e357cb5e..b5e0dcb6 100644
--- a/miosix/arch/cortexM4_stm32f4/stm32f401vc_stm32f4discovery/core/stage_1_boot.cpp
+++ b/miosix/arch/cortexM4_stm32f4/stm32f401vc_stm32f4discovery/core/stage_1_boot.cpp
@@ -306,8 +306,8 @@ void (* const __Vectors[])() __attribute__ ((section(".isr_vector"))) =
 #pragma weak I2C2_ER_IRQHandler = Default_Handler
 #pragma weak SPI1_IRQHandler = Default_Handler
 #pragma weak SPI2_IRQHandler = Default_Handler
-#pragma weak USART1_IRQHandler = Default_Handler
-#pragma weak USART2_IRQHandler = Default_Handler
+// #pragma weak USART1_IRQHandler = Default_Handler
+// #pragma weak USART2_IRQHandler = Default_Handler
 #pragma weak EXTI15_10_IRQHandler = Default_Handler
 #pragma weak RTC_Alarm_IRQHandler = Default_Handler
 #pragma weak OTG_FS_WKUP_IRQHandler = Default_Handler
@@ -324,7 +324,7 @@ void (* const __Vectors[])() __attribute__ ((section(".isr_vector"))) =
 #pragma weak DMA2_Stream5_IRQHandler = Default_Handler
 #pragma weak DMA2_Stream6_IRQHandler = Default_Handler
 #pragma weak DMA2_Stream7_IRQHandler = Default_Handler
-#pragma weak USART6_IRQHandler = Default_Handler
+// #pragma weak USART6_IRQHandler = Default_Handler
 #pragma weak I2C3_EV_IRQHandler = Default_Handler
 #pragma weak I2C3_ER_IRQHandler = Default_Handler
 #pragma weak FPU_IRQHandler = Default_Handler
diff --git a/miosix/arch/cortexM4_stm32f4/stm32f407vg_bitsboard/core/stage_1_boot.cpp b/miosix/arch/cortexM4_stm32f4/stm32f407vg_bitsboard/core/stage_1_boot.cpp
index 9af45b2d..f4b99aec 100644
--- a/miosix/arch/cortexM4_stm32f4/stm32f407vg_bitsboard/core/stage_1_boot.cpp
+++ b/miosix/arch/cortexM4_stm32f4/stm32f407vg_bitsboard/core/stage_1_boot.cpp
@@ -333,9 +333,9 @@ void (* const __Vectors[])() __attribute__ ((section(".isr_vector"))) =
 #pragma weak I2C2_ER_IRQHandler = Default_Handler
 #pragma weak SPI1_IRQHandler = Default_Handler
 #pragma weak SPI2_IRQHandler = Default_Handler
-#pragma weak USART1_IRQHandler = Default_Handler
-#pragma weak USART2_IRQHandler = Default_Handler
-#pragma weak USART3_IRQHandler = Default_Handler
+// #pragma weak USART1_IRQHandler = Default_Handler
+// #pragma weak USART2_IRQHandler = Default_Handler
+// #pragma weak USART3_IRQHandler = Default_Handler
 #pragma weak EXTI15_10_IRQHandler = Default_Handler
 #pragma weak RTC_Alarm_IRQHandler = Default_Handler
 #pragma weak OTG_FS_WKUP_IRQHandler = Default_Handler
@@ -348,8 +348,8 @@ void (* const __Vectors[])() __attribute__ ((section(".isr_vector"))) =
 #pragma weak SDIO_IRQHandler = Default_Handler
 #pragma weak TIM5_IRQHandler = Default_Handler
 #pragma weak SPI3_IRQHandler = Default_Handler
-#pragma weak UART4_IRQHandler = Default_Handler
-#pragma weak UART5_IRQHandler = Default_Handler
+// #pragma weak UART4_IRQHandler = Default_Handler
+// #pragma weak UART5_IRQHandler = Default_Handler
 #pragma weak TIM6_DAC_IRQHandler = Default_Handler
 #pragma weak TIM7_IRQHandler = Default_Handler
 #pragma weak DMA2_Stream0_IRQHandler = Default_Handler
@@ -367,7 +367,7 @@ void (* const __Vectors[])() __attribute__ ((section(".isr_vector"))) =
 #pragma weak DMA2_Stream5_IRQHandler = Default_Handler
 #pragma weak DMA2_Stream6_IRQHandler = Default_Handler
 #pragma weak DMA2_Stream7_IRQHandler = Default_Handler
-#pragma weak USART6_IRQHandler = Default_Handler
+// #pragma weak USART6_IRQHandler = Default_Handler
 #pragma weak I2C3_EV_IRQHandler = Default_Handler
 #pragma weak I2C3_ER_IRQHandler = Default_Handler
 #pragma weak OTG_HS_EP1_OUT_IRQHandler = Default_Handler
diff --git a/miosix/arch/cortexM4_stm32f4/stm32f407vg_stm32f4discovery/core/stage_1_boot.cpp b/miosix/arch/cortexM4_stm32f4/stm32f407vg_stm32f4discovery/core/stage_1_boot.cpp
index 41405d27..58feb9c1 100644
--- a/miosix/arch/cortexM4_stm32f4/stm32f407vg_stm32f4discovery/core/stage_1_boot.cpp
+++ b/miosix/arch/cortexM4_stm32f4/stm32f407vg_stm32f4discovery/core/stage_1_boot.cpp
@@ -332,9 +332,9 @@ void (* const __Vectors[])() __attribute__ ((section(".isr_vector"))) =
 #pragma weak I2C2_ER_IRQHandler = Default_Handler
 #pragma weak SPI1_IRQHandler = Default_Handler
 #pragma weak SPI2_IRQHandler = Default_Handler
-#pragma weak USART1_IRQHandler = Default_Handler
-#pragma weak USART2_IRQHandler = Default_Handler
-#pragma weak USART3_IRQHandler = Default_Handler
+// #pragma weak USART1_IRQHandler = Default_Handler
+// #pragma weak USART2_IRQHandler = Default_Handler
+// #pragma weak USART3_IRQHandler = Default_Handler
 #pragma weak EXTI15_10_IRQHandler = Default_Handler
 #pragma weak RTC_Alarm_IRQHandler = Default_Handler
 #pragma weak OTG_FS_WKUP_IRQHandler = Default_Handler
@@ -347,8 +347,8 @@ void (* const __Vectors[])() __attribute__ ((section(".isr_vector"))) =
 #pragma weak SDIO_IRQHandler = Default_Handler
 #pragma weak TIM5_IRQHandler = Default_Handler
 #pragma weak SPI3_IRQHandler = Default_Handler
-#pragma weak UART4_IRQHandler = Default_Handler
-#pragma weak UART5_IRQHandler = Default_Handler
+// #pragma weak UART4_IRQHandler = Default_Handler
+// #pragma weak UART5_IRQHandler = Default_Handler
 #pragma weak TIM6_DAC_IRQHandler = Default_Handler
 #pragma weak TIM7_IRQHandler = Default_Handler
 #pragma weak DMA2_Stream0_IRQHandler = Default_Handler
@@ -366,7 +366,7 @@ void (* const __Vectors[])() __attribute__ ((section(".isr_vector"))) =
 #pragma weak DMA2_Stream5_IRQHandler = Default_Handler
 #pragma weak DMA2_Stream6_IRQHandler = Default_Handler
 #pragma weak DMA2_Stream7_IRQHandler = Default_Handler
-#pragma weak USART6_IRQHandler = Default_Handler
+// #pragma weak USART6_IRQHandler = Default_Handler
 #pragma weak I2C3_EV_IRQHandler = Default_Handler
 #pragma weak I2C3_ER_IRQHandler = Default_Handler
 #pragma weak OTG_HS_EP1_OUT_IRQHandler = Default_Handler
diff --git a/miosix/arch/cortexM4_stm32f4/stm32f407vg_thermal_test_chip/core/stage_1_boot.cpp b/miosix/arch/cortexM4_stm32f4/stm32f407vg_thermal_test_chip/core/stage_1_boot.cpp
index c9c30305..5224b072 100644
--- a/miosix/arch/cortexM4_stm32f4/stm32f407vg_thermal_test_chip/core/stage_1_boot.cpp
+++ b/miosix/arch/cortexM4_stm32f4/stm32f407vg_thermal_test_chip/core/stage_1_boot.cpp
@@ -333,9 +333,9 @@ void (* const __Vectors[])() __attribute__ ((section(".isr_vector"))) =
 #pragma weak I2C2_ER_IRQHandler = Default_Handler
 #pragma weak SPI1_IRQHandler = Default_Handler
 #pragma weak SPI2_IRQHandler = Default_Handler
-#pragma weak USART1_IRQHandler = Default_Handler
-#pragma weak USART2_IRQHandler = Default_Handler
-#pragma weak USART3_IRQHandler = Default_Handler
+// #pragma weak USART1_IRQHandler = Default_Handler
+// #pragma weak USART2_IRQHandler = Default_Handler
+// #pragma weak USART3_IRQHandler = Default_Handler
 #pragma weak EXTI15_10_IRQHandler = Default_Handler
 #pragma weak RTC_Alarm_IRQHandler = Default_Handler
 #pragma weak OTG_FS_WKUP_IRQHandler = Default_Handler
@@ -348,8 +348,8 @@ void (* const __Vectors[])() __attribute__ ((section(".isr_vector"))) =
 #pragma weak SDIO_IRQHandler = Default_Handler
 #pragma weak TIM5_IRQHandler = Default_Handler
 #pragma weak SPI3_IRQHandler = Default_Handler
-#pragma weak UART4_IRQHandler = Default_Handler
-#pragma weak UART5_IRQHandler = Default_Handler
+// #pragma weak UART4_IRQHandler = Default_Handler
+// #pragma weak UART5_IRQHandler = Default_Handler
 #pragma weak TIM6_DAC_IRQHandler = Default_Handler
 #pragma weak TIM7_IRQHandler = Default_Handler
 #pragma weak DMA2_Stream0_IRQHandler = Default_Handler
@@ -367,7 +367,7 @@ void (* const __Vectors[])() __attribute__ ((section(".isr_vector"))) =
 #pragma weak DMA2_Stream5_IRQHandler = Default_Handler
 #pragma weak DMA2_Stream6_IRQHandler = Default_Handler
 #pragma weak DMA2_Stream7_IRQHandler = Default_Handler
-#pragma weak USART6_IRQHandler = Default_Handler
+// #pragma weak USART6_IRQHandler = Default_Handler
 #pragma weak I2C3_EV_IRQHandler = Default_Handler
 #pragma weak I2C3_ER_IRQHandler = Default_Handler
 #pragma weak OTG_HS_EP1_OUT_IRQHandler = Default_Handler
diff --git a/miosix/arch/cortexM4_stm32f4/stm32f411ce_blackpill/core/stage_1_boot.cpp b/miosix/arch/cortexM4_stm32f4/stm32f411ce_blackpill/core/stage_1_boot.cpp
index 1c6ea2b3..fc38f1b3 100644
--- a/miosix/arch/cortexM4_stm32f4/stm32f411ce_blackpill/core/stage_1_boot.cpp
+++ b/miosix/arch/cortexM4_stm32f4/stm32f411ce_blackpill/core/stage_1_boot.cpp
@@ -308,8 +308,8 @@ void (* const __Vectors[])() __attribute__ ((section(".isr_vector"))) =
 #pragma weak I2C2_ER_IRQHandler = Default_Handler
 #pragma weak SPI1_IRQHandler = Default_Handler
 #pragma weak SPI2_IRQHandler = Default_Handler
-#pragma weak USART1_IRQHandler = Default_Handler
-#pragma weak USART2_IRQHandler = Default_Handler
+// #pragma weak USART1_IRQHandler = Default_Handler
+// #pragma weak USART2_IRQHandler = Default_Handler
 #pragma weak EXTI15_10_IRQHandler = Default_Handler
 #pragma weak RTC_Alarm_IRQHandler = Default_Handler
 #pragma weak OTG_FS_WKUP_IRQHandler = Default_Handler
@@ -326,7 +326,7 @@ void (* const __Vectors[])() __attribute__ ((section(".isr_vector"))) =
 #pragma weak DMA2_Stream5_IRQHandler = Default_Handler
 #pragma weak DMA2_Stream6_IRQHandler = Default_Handler
 #pragma weak DMA2_Stream7_IRQHandler = Default_Handler
-#pragma weak USART6_IRQHandler = Default_Handler
+// #pragma weak USART6_IRQHandler = Default_Handler
 #pragma weak I2C3_EV_IRQHandler = Default_Handler
 #pragma weak I2C3_ER_IRQHandler = Default_Handler
 #pragma weak FPU_IRQHandler = Default_Handler
diff --git a/miosix/arch/cortexM4_stm32f4/stm32f411re_nucleo/core/stage_1_boot.cpp b/miosix/arch/cortexM4_stm32f4/stm32f411re_nucleo/core/stage_1_boot.cpp
index 1c6ea2b3..fc38f1b3 100644
--- a/miosix/arch/cortexM4_stm32f4/stm32f411re_nucleo/core/stage_1_boot.cpp
+++ b/miosix/arch/cortexM4_stm32f4/stm32f411re_nucleo/core/stage_1_boot.cpp
@@ -308,8 +308,8 @@ void (* const __Vectors[])() __attribute__ ((section(".isr_vector"))) =
 #pragma weak I2C2_ER_IRQHandler = Default_Handler
 #pragma weak SPI1_IRQHandler = Default_Handler
 #pragma weak SPI2_IRQHandler = Default_Handler
-#pragma weak USART1_IRQHandler = Default_Handler
-#pragma weak USART2_IRQHandler = Default_Handler
+// #pragma weak USART1_IRQHandler = Default_Handler
+// #pragma weak USART2_IRQHandler = Default_Handler
 #pragma weak EXTI15_10_IRQHandler = Default_Handler
 #pragma weak RTC_Alarm_IRQHandler = Default_Handler
 #pragma weak OTG_FS_WKUP_IRQHandler = Default_Handler
@@ -326,7 +326,7 @@ void (* const __Vectors[])() __attribute__ ((section(".isr_vector"))) =
 #pragma weak DMA2_Stream5_IRQHandler = Default_Handler
 #pragma weak DMA2_Stream6_IRQHandler = Default_Handler
 #pragma weak DMA2_Stream7_IRQHandler = Default_Handler
-#pragma weak USART6_IRQHandler = Default_Handler
+// #pragma weak USART6_IRQHandler = Default_Handler
 #pragma weak I2C3_EV_IRQHandler = Default_Handler
 #pragma weak I2C3_ER_IRQHandler = Default_Handler
 #pragma weak FPU_IRQHandler = Default_Handler
diff --git a/miosix/arch/cortexM4_stm32f4/stm32f429zi_oledboard2/core/stage_1_boot.cpp b/miosix/arch/cortexM4_stm32f4/stm32f429zi_oledboard2/core/stage_1_boot.cpp
index c4d44696..d3a2f52b 100644
--- a/miosix/arch/cortexM4_stm32f4/stm32f429zi_oledboard2/core/stage_1_boot.cpp
+++ b/miosix/arch/cortexM4_stm32f4/stm32f429zi_oledboard2/core/stage_1_boot.cpp
@@ -358,9 +358,9 @@ void (* const __Vectors[])() __attribute__ ((section(".isr_vector"))) =
 #pragma weak I2C2_ER_IRQHandler = Default_Handler
 #pragma weak SPI1_IRQHandler = Default_Handler
 #pragma weak SPI2_IRQHandler = Default_Handler
-#pragma weak USART1_IRQHandler = Default_Handler
-#pragma weak USART2_IRQHandler = Default_Handler
-#pragma weak USART3_IRQHandler = Default_Handler
+// #pragma weak USART1_IRQHandler = Default_Handler
+// #pragma weak USART2_IRQHandler = Default_Handler
+// #pragma weak USART3_IRQHandler = Default_Handler
 #pragma weak EXTI15_10_IRQHandler = Default_Handler
 #pragma weak RTC_Alarm_IRQHandler = Default_Handler
 #pragma weak OTG_FS_WKUP_IRQHandler = Default_Handler
@@ -373,8 +373,8 @@ void (* const __Vectors[])() __attribute__ ((section(".isr_vector"))) =
 #pragma weak SDIO_IRQHandler = Default_Handler
 #pragma weak TIM5_IRQHandler = Default_Handler
 #pragma weak SPI3_IRQHandler = Default_Handler
-#pragma weak UART4_IRQHandler = Default_Handler
-#pragma weak UART5_IRQHandler = Default_Handler
+// #pragma weak UART4_IRQHandler = Default_Handler
+// #pragma weak UART5_IRQHandler = Default_Handler
 #pragma weak TIM6_DAC_IRQHandler = Default_Handler
 #pragma weak TIM7_IRQHandler = Default_Handler
 #pragma weak DMA2_Stream0_IRQHandler = Default_Handler
@@ -392,7 +392,7 @@ void (* const __Vectors[])() __attribute__ ((section(".isr_vector"))) =
 #pragma weak DMA2_Stream5_IRQHandler = Default_Handler
 #pragma weak DMA2_Stream6_IRQHandler = Default_Handler
 #pragma weak DMA2_Stream7_IRQHandler = Default_Handler
-#pragma weak USART6_IRQHandler = Default_Handler
+// #pragma weak USART6_IRQHandler = Default_Handler
 #pragma weak I2C3_EV_IRQHandler = Default_Handler
 #pragma weak I2C3_ER_IRQHandler = Default_Handler
 #pragma weak OTG_HS_EP1_OUT_IRQHandler = Default_Handler
@@ -403,8 +403,8 @@ void (* const __Vectors[])() __attribute__ ((section(".isr_vector"))) =
 #pragma weak CRYP_IRQHandler = Default_Handler
 #pragma weak HASH_RNG_IRQHandler = Default_Handler
 #pragma weak FPU_IRQHandler = Default_Handler
-#pragma weak UART7_IRQHandler = Default_Handler
-#pragma weak UART8_IRQHandler = Default_Handler
+// #pragma weak UART7_IRQHandler = Default_Handler
+// #pragma weak UART8_IRQHandler = Default_Handler
 #pragma weak SPI4_IRQHandler = Default_Handler
 #pragma weak SPI5_IRQHandler = Default_Handler
 #pragma weak SPI6_IRQHandler = Default_Handler
diff --git a/miosix/arch/cortexM4_stm32f4/stm32f429zi_skyward_anakin/core/stage_1_boot.cpp b/miosix/arch/cortexM4_stm32f4/stm32f429zi_skyward_anakin/core/stage_1_boot.cpp
index c4d44696..d3a2f52b 100644
--- a/miosix/arch/cortexM4_stm32f4/stm32f429zi_skyward_anakin/core/stage_1_boot.cpp
+++ b/miosix/arch/cortexM4_stm32f4/stm32f429zi_skyward_anakin/core/stage_1_boot.cpp
@@ -358,9 +358,9 @@ void (* const __Vectors[])() __attribute__ ((section(".isr_vector"))) =
 #pragma weak I2C2_ER_IRQHandler = Default_Handler
 #pragma weak SPI1_IRQHandler = Default_Handler
 #pragma weak SPI2_IRQHandler = Default_Handler
-#pragma weak USART1_IRQHandler = Default_Handler
-#pragma weak USART2_IRQHandler = Default_Handler
-#pragma weak USART3_IRQHandler = Default_Handler
+// #pragma weak USART1_IRQHandler = Default_Handler
+// #pragma weak USART2_IRQHandler = Default_Handler
+// #pragma weak USART3_IRQHandler = Default_Handler
 #pragma weak EXTI15_10_IRQHandler = Default_Handler
 #pragma weak RTC_Alarm_IRQHandler = Default_Handler
 #pragma weak OTG_FS_WKUP_IRQHandler = Default_Handler
@@ -373,8 +373,8 @@ void (* const __Vectors[])() __attribute__ ((section(".isr_vector"))) =
 #pragma weak SDIO_IRQHandler = Default_Handler
 #pragma weak TIM5_IRQHandler = Default_Handler
 #pragma weak SPI3_IRQHandler = Default_Handler
-#pragma weak UART4_IRQHandler = Default_Handler
-#pragma weak UART5_IRQHandler = Default_Handler
+// #pragma weak UART4_IRQHandler = Default_Handler
+// #pragma weak UART5_IRQHandler = Default_Handler
 #pragma weak TIM6_DAC_IRQHandler = Default_Handler
 #pragma weak TIM7_IRQHandler = Default_Handler
 #pragma weak DMA2_Stream0_IRQHandler = Default_Handler
@@ -392,7 +392,7 @@ void (* const __Vectors[])() __attribute__ ((section(".isr_vector"))) =
 #pragma weak DMA2_Stream5_IRQHandler = Default_Handler
 #pragma weak DMA2_Stream6_IRQHandler = Default_Handler
 #pragma weak DMA2_Stream7_IRQHandler = Default_Handler
-#pragma weak USART6_IRQHandler = Default_Handler
+// #pragma weak USART6_IRQHandler = Default_Handler
 #pragma weak I2C3_EV_IRQHandler = Default_Handler
 #pragma weak I2C3_ER_IRQHandler = Default_Handler
 #pragma weak OTG_HS_EP1_OUT_IRQHandler = Default_Handler
@@ -403,8 +403,8 @@ void (* const __Vectors[])() __attribute__ ((section(".isr_vector"))) =
 #pragma weak CRYP_IRQHandler = Default_Handler
 #pragma weak HASH_RNG_IRQHandler = Default_Handler
 #pragma weak FPU_IRQHandler = Default_Handler
-#pragma weak UART7_IRQHandler = Default_Handler
-#pragma weak UART8_IRQHandler = Default_Handler
+// #pragma weak UART7_IRQHandler = Default_Handler
+// #pragma weak UART8_IRQHandler = Default_Handler
 #pragma weak SPI4_IRQHandler = Default_Handler
 #pragma weak SPI5_IRQHandler = Default_Handler
 #pragma weak SPI6_IRQHandler = Default_Handler
diff --git a/miosix/arch/cortexM4_stm32f4/stm32f429zi_skyward_homeone/core/stage_1_boot.cpp b/miosix/arch/cortexM4_stm32f4/stm32f429zi_skyward_homeone/core/stage_1_boot.cpp
index c4d44696..d3a2f52b 100644
--- a/miosix/arch/cortexM4_stm32f4/stm32f429zi_skyward_homeone/core/stage_1_boot.cpp
+++ b/miosix/arch/cortexM4_stm32f4/stm32f429zi_skyward_homeone/core/stage_1_boot.cpp
@@ -358,9 +358,9 @@ void (* const __Vectors[])() __attribute__ ((section(".isr_vector"))) =
 #pragma weak I2C2_ER_IRQHandler = Default_Handler
 #pragma weak SPI1_IRQHandler = Default_Handler
 #pragma weak SPI2_IRQHandler = Default_Handler
-#pragma weak USART1_IRQHandler = Default_Handler
-#pragma weak USART2_IRQHandler = Default_Handler
-#pragma weak USART3_IRQHandler = Default_Handler
+// #pragma weak USART1_IRQHandler = Default_Handler
+// #pragma weak USART2_IRQHandler = Default_Handler
+// #pragma weak USART3_IRQHandler = Default_Handler
 #pragma weak EXTI15_10_IRQHandler = Default_Handler
 #pragma weak RTC_Alarm_IRQHandler = Default_Handler
 #pragma weak OTG_FS_WKUP_IRQHandler = Default_Handler
@@ -373,8 +373,8 @@ void (* const __Vectors[])() __attribute__ ((section(".isr_vector"))) =
 #pragma weak SDIO_IRQHandler = Default_Handler
 #pragma weak TIM5_IRQHandler = Default_Handler
 #pragma weak SPI3_IRQHandler = Default_Handler
-#pragma weak UART4_IRQHandler = Default_Handler
-#pragma weak UART5_IRQHandler = Default_Handler
+// #pragma weak UART4_IRQHandler = Default_Handler
+// #pragma weak UART5_IRQHandler = Default_Handler
 #pragma weak TIM6_DAC_IRQHandler = Default_Handler
 #pragma weak TIM7_IRQHandler = Default_Handler
 #pragma weak DMA2_Stream0_IRQHandler = Default_Handler
@@ -392,7 +392,7 @@ void (* const __Vectors[])() __attribute__ ((section(".isr_vector"))) =
 #pragma weak DMA2_Stream5_IRQHandler = Default_Handler
 #pragma weak DMA2_Stream6_IRQHandler = Default_Handler
 #pragma weak DMA2_Stream7_IRQHandler = Default_Handler
-#pragma weak USART6_IRQHandler = Default_Handler
+// #pragma weak USART6_IRQHandler = Default_Handler
 #pragma weak I2C3_EV_IRQHandler = Default_Handler
 #pragma weak I2C3_ER_IRQHandler = Default_Handler
 #pragma weak OTG_HS_EP1_OUT_IRQHandler = Default_Handler
@@ -403,8 +403,8 @@ void (* const __Vectors[])() __attribute__ ((section(".isr_vector"))) =
 #pragma weak CRYP_IRQHandler = Default_Handler
 #pragma weak HASH_RNG_IRQHandler = Default_Handler
 #pragma weak FPU_IRQHandler = Default_Handler
-#pragma weak UART7_IRQHandler = Default_Handler
-#pragma weak UART8_IRQHandler = Default_Handler
+// #pragma weak UART7_IRQHandler = Default_Handler
+// #pragma weak UART8_IRQHandler = Default_Handler
 #pragma weak SPI4_IRQHandler = Default_Handler
 #pragma weak SPI5_IRQHandler = Default_Handler
 #pragma weak SPI6_IRQHandler = Default_Handler
diff --git a/miosix/arch/cortexM4_stm32f4/stm32f429zi_stm32f4discovery/core/stage_1_boot.cpp b/miosix/arch/cortexM4_stm32f4/stm32f429zi_stm32f4discovery/core/stage_1_boot.cpp
index c4d44696..d3a2f52b 100644
--- a/miosix/arch/cortexM4_stm32f4/stm32f429zi_stm32f4discovery/core/stage_1_boot.cpp
+++ b/miosix/arch/cortexM4_stm32f4/stm32f429zi_stm32f4discovery/core/stage_1_boot.cpp
@@ -358,9 +358,9 @@ void (* const __Vectors[])() __attribute__ ((section(".isr_vector"))) =
 #pragma weak I2C2_ER_IRQHandler = Default_Handler
 #pragma weak SPI1_IRQHandler = Default_Handler
 #pragma weak SPI2_IRQHandler = Default_Handler
-#pragma weak USART1_IRQHandler = Default_Handler
-#pragma weak USART2_IRQHandler = Default_Handler
-#pragma weak USART3_IRQHandler = Default_Handler
+// #pragma weak USART1_IRQHandler = Default_Handler
+// #pragma weak USART2_IRQHandler = Default_Handler
+// #pragma weak USART3_IRQHandler = Default_Handler
 #pragma weak EXTI15_10_IRQHandler = Default_Handler
 #pragma weak RTC_Alarm_IRQHandler = Default_Handler
 #pragma weak OTG_FS_WKUP_IRQHandler = Default_Handler
@@ -373,8 +373,8 @@ void (* const __Vectors[])() __attribute__ ((section(".isr_vector"))) =
 #pragma weak SDIO_IRQHandler = Default_Handler
 #pragma weak TIM5_IRQHandler = Default_Handler
 #pragma weak SPI3_IRQHandler = Default_Handler
-#pragma weak UART4_IRQHandler = Default_Handler
-#pragma weak UART5_IRQHandler = Default_Handler
+// #pragma weak UART4_IRQHandler = Default_Handler
+// #pragma weak UART5_IRQHandler = Default_Handler
 #pragma weak TIM6_DAC_IRQHandler = Default_Handler
 #pragma weak TIM7_IRQHandler = Default_Handler
 #pragma weak DMA2_Stream0_IRQHandler = Default_Handler
@@ -392,7 +392,7 @@ void (* const __Vectors[])() __attribute__ ((section(".isr_vector"))) =
 #pragma weak DMA2_Stream5_IRQHandler = Default_Handler
 #pragma weak DMA2_Stream6_IRQHandler = Default_Handler
 #pragma weak DMA2_Stream7_IRQHandler = Default_Handler
-#pragma weak USART6_IRQHandler = Default_Handler
+// #pragma weak USART6_IRQHandler = Default_Handler
 #pragma weak I2C3_EV_IRQHandler = Default_Handler
 #pragma weak I2C3_ER_IRQHandler = Default_Handler
 #pragma weak OTG_HS_EP1_OUT_IRQHandler = Default_Handler
@@ -403,8 +403,8 @@ void (* const __Vectors[])() __attribute__ ((section(".isr_vector"))) =
 #pragma weak CRYP_IRQHandler = Default_Handler
 #pragma weak HASH_RNG_IRQHandler = Default_Handler
 #pragma weak FPU_IRQHandler = Default_Handler
-#pragma weak UART7_IRQHandler = Default_Handler
-#pragma weak UART8_IRQHandler = Default_Handler
+// #pragma weak UART7_IRQHandler = Default_Handler
+// #pragma weak UART8_IRQHandler = Default_Handler
 #pragma weak SPI4_IRQHandler = Default_Handler
 #pragma weak SPI5_IRQHandler = Default_Handler
 #pragma weak SPI6_IRQHandler = Default_Handler
diff --git a/miosix/arch/cortexM4_stm32f4/stm32f469ni_stm32f469i-disco/core/stage_1_boot.cpp b/miosix/arch/cortexM4_stm32f4/stm32f469ni_stm32f469i-disco/core/stage_1_boot.cpp
index b1e43630..b5751e42 100644
--- a/miosix/arch/cortexM4_stm32f4/stm32f469ni_stm32f469i-disco/core/stage_1_boot.cpp
+++ b/miosix/arch/cortexM4_stm32f4/stm32f469ni_stm32f469i-disco/core/stage_1_boot.cpp
@@ -360,9 +360,9 @@ void (* const __Vectors[])() __attribute__ ((section(".isr_vector"))) =
 #pragma weak I2C2_ER_IRQHandler = Default_Handler
 #pragma weak SPI1_IRQHandler = Default_Handler
 #pragma weak SPI2_IRQHandler = Default_Handler
-#pragma weak USART1_IRQHandler = Default_Handler
-#pragma weak USART2_IRQHandler = Default_Handler
-#pragma weak USART3_IRQHandler = Default_Handler
+// #pragma weak USART1_IRQHandler = Default_Handler
+// #pragma weak USART2_IRQHandler = Default_Handler
+// #pragma weak USART3_IRQHandler = Default_Handler
 #pragma weak EXTI15_10_IRQHandler = Default_Handler
 #pragma weak RTC_Alarm_IRQHandler = Default_Handler
 #pragma weak OTG_FS_WKUP_IRQHandler = Default_Handler
@@ -375,8 +375,8 @@ void (* const __Vectors[])() __attribute__ ((section(".isr_vector"))) =
 #pragma weak SDIO_IRQHandler = Default_Handler
 #pragma weak TIM5_IRQHandler = Default_Handler
 #pragma weak SPI3_IRQHandler = Default_Handler
-#pragma weak UART4_IRQHandler = Default_Handler
-#pragma weak UART5_IRQHandler = Default_Handler
+// #pragma weak UART4_IRQHandler = Default_Handler
+// #pragma weak UART5_IRQHandler = Default_Handler
 #pragma weak TIM6_DAC_IRQHandler = Default_Handler
 #pragma weak TIM7_IRQHandler = Default_Handler
 #pragma weak DMA2_Stream0_IRQHandler = Default_Handler
@@ -394,7 +394,7 @@ void (* const __Vectors[])() __attribute__ ((section(".isr_vector"))) =
 #pragma weak DMA2_Stream5_IRQHandler = Default_Handler
 #pragma weak DMA2_Stream6_IRQHandler = Default_Handler
 #pragma weak DMA2_Stream7_IRQHandler = Default_Handler
-#pragma weak USART6_IRQHandler = Default_Handler
+// #pragma weak USART6_IRQHandler = Default_Handler
 #pragma weak I2C3_EV_IRQHandler = Default_Handler
 #pragma weak I2C3_ER_IRQHandler = Default_Handler
 #pragma weak OTG_HS_EP1_OUT_IRQHandler = Default_Handler
@@ -404,8 +404,8 @@ void (* const __Vectors[])() __attribute__ ((section(".isr_vector"))) =
 #pragma weak DCMI_IRQHandler = Default_Handler
 #pragma weak HASH_RNG_IRQHandler = Default_Handler
 #pragma weak FPU_IRQHandler = Default_Handler
-#pragma weak UART7_IRQHandler = Default_Handler
-#pragma weak UART8_IRQHandler = Default_Handler
+// #pragma weak UART7_IRQHandler = Default_Handler
+// #pragma weak UART8_IRQHandler = Default_Handler
 #pragma weak SPI4_IRQHandler = Default_Handler
 #pragma weak SPI5_IRQHandler = Default_Handler
 #pragma weak SPI6_IRQHandler = Default_Handler
diff --git a/miosix/arch/cortexM4_stm32l4/stm32l476rg_nucleo/core/stage_1_boot.cpp b/miosix/arch/cortexM4_stm32l4/stm32l476rg_nucleo/core/stage_1_boot.cpp
index 65e95347..793a25ec 100644
--- a/miosix/arch/cortexM4_stm32l4/stm32l476rg_nucleo/core/stage_1_boot.cpp
+++ b/miosix/arch/cortexM4_stm32l4/stm32l476rg_nucleo/core/stage_1_boot.cpp
@@ -332,9 +332,9 @@ void (* const __Vectors[])() __attribute__ ((section(".isr_vector"))) =
 #pragma weak I2C2_ER_IRQHandler = Default_Handler
 #pragma weak SPI1_IRQHandler = Default_Handler
 #pragma weak SPI2_IRQHandler = Default_Handler
-#pragma weak USART1_IRQHandler = Default_Handler
-#pragma weak USART2_IRQHandler = Default_Handler
-#pragma weak USART3_IRQHandler = Default_Handler
+// #pragma weak USART1_IRQHandler = Default_Handler
+// #pragma weak USART2_IRQHandler = Default_Handler
+// #pragma weak USART3_IRQHandler = Default_Handler
 #pragma weak EXTI15_10_IRQHandler = Default_Handler
 #pragma weak RTC_Alarm_IRQHandler = Default_Handler
 #pragma weak DFSDM1_FLT3_IRQHandler = Default_Handler
@@ -347,8 +347,8 @@ void (* const __Vectors[])() __attribute__ ((section(".isr_vector"))) =
 #pragma weak SDMMC1_IRQHandler = Default_Handler
 #pragma weak TIM5_IRQHandler = Default_Handler
 #pragma weak SPI3_IRQHandler = Default_Handler
-#pragma weak UART4_IRQHandler = Default_Handler
-#pragma weak UART5_IRQHandler = Default_Handler
+// #pragma weak UART4_IRQHandler = Default_Handler
+// #pragma weak UART5_IRQHandler = Default_Handler
 #pragma weak TIM6_DAC_IRQHandler = Default_Handler
 #pragma weak TIM7_IRQHandler = Default_Handler
 #pragma weak DMA2_Channel1_IRQHandler = Default_Handler
diff --git a/miosix/arch/cortexM4_stm32l4/stm32l4r9zi_sensortile/core/stage_1_boot.cpp b/miosix/arch/cortexM4_stm32l4/stm32l4r9zi_sensortile/core/stage_1_boot.cpp
index 5664ef3b..c6714d0c 100644
--- a/miosix/arch/cortexM4_stm32l4/stm32l4r9zi_sensortile/core/stage_1_boot.cpp
+++ b/miosix/arch/cortexM4_stm32l4/stm32l4r9zi_sensortile/core/stage_1_boot.cpp
@@ -353,9 +353,9 @@ void (* const __Vectors[])() __attribute__ ((section(".isr_vector"))) =
 #pragma weak I2C2_ER_IRQHandler = Default_Handler
 #pragma weak SPI1_IRQHandler = Default_Handler
 #pragma weak SPI2_IRQHandler = Default_Handler
-#pragma weak USART1_IRQHandler = Default_Handler
-#pragma weak USART2_IRQHandler = Default_Handler
-#pragma weak USART3_IRQHandler = Default_Handler
+// #pragma weak USART1_IRQHandler = Default_Handler
+// #pragma weak USART2_IRQHandler = Default_Handler
+// #pragma weak USART3_IRQHandler = Default_Handler
 #pragma weak EXTI15_10_IRQHandler = Default_Handler
 #pragma weak RTC_Alarm_IRQHandler = Default_Handler
 #pragma weak DFSDM1_FLT3_IRQHandler = Default_Handler
@@ -367,8 +367,8 @@ void (* const __Vectors[])() __attribute__ ((section(".isr_vector"))) =
 #pragma weak SDMMC1_IRQHandler = Default_Handler
 #pragma weak TIM5_IRQHandler = Default_Handler
 #pragma weak SPI3_IRQHandler = Default_Handler
-#pragma weak UART4_IRQHandler = Default_Handler
-#pragma weak UART5_IRQHandler = Default_Handler
+// #pragma weak UART4_IRQHandler = Default_Handler
+// #pragma weak UART5_IRQHandler = Default_Handler
 #pragma weak TIM6_DAC_IRQHandler = Default_Handler
 #pragma weak TIM7_IRQHandler = Default_Handler
 #pragma weak DMA2_Channel1_IRQHandler = Default_Handler
diff --git a/miosix/arch/cortexM7_stm32f7/stm32f746zg_nucleo/core/stage_1_boot.cpp b/miosix/arch/cortexM7_stm32f7/stm32f746zg_nucleo/core/stage_1_boot.cpp
index 79d1483f..f2c6c947 100644
--- a/miosix/arch/cortexM7_stm32f7/stm32f746zg_nucleo/core/stage_1_boot.cpp
+++ b/miosix/arch/cortexM7_stm32f7/stm32f746zg_nucleo/core/stage_1_boot.cpp
@@ -367,9 +367,9 @@ void (* const __Vectors[])() __attribute__ ((section(".isr_vector"))) =
 #pragma weak I2C2_ER_IRQHandler = Default_Handler
 #pragma weak SPI1_IRQHandler = Default_Handler
 #pragma weak SPI2_IRQHandler = Default_Handler
-#pragma weak USART1_IRQHandler = Default_Handler
-#pragma weak USART2_IRQHandler = Default_Handler
-#pragma weak USART3_IRQHandler = Default_Handler
+// #pragma weak USART1_IRQHandler = Default_Handler
+// #pragma weak USART2_IRQHandler = Default_Handler
+// #pragma weak USART3_IRQHandler = Default_Handler
 #pragma weak EXTI15_10_IRQHandler = Default_Handler
 #pragma weak RTC_Alarm_IRQHandler = Default_Handler
 #pragma weak OTG_FS_WKUP_IRQHandler = Default_Handler
@@ -382,8 +382,8 @@ void (* const __Vectors[])() __attribute__ ((section(".isr_vector"))) =
 #pragma weak SDMMC1_IRQHandler = Default_Handler
 #pragma weak TIM5_IRQHandler = Default_Handler
 #pragma weak SPI3_IRQHandler = Default_Handler
-#pragma weak UART4_IRQHandler = Default_Handler
-#pragma weak UART5_IRQHandler = Default_Handler
+// #pragma weak UART4_IRQHandler = Default_Handler
+// #pragma weak UART5_IRQHandler = Default_Handler
 #pragma weak TIM6_DAC_IRQHandler = Default_Handler
 #pragma weak TIM7_IRQHandler = Default_Handler
 #pragma weak DMA2_Stream0_IRQHandler = Default_Handler
@@ -401,7 +401,7 @@ void (* const __Vectors[])() __attribute__ ((section(".isr_vector"))) =
 #pragma weak DMA2_Stream5_IRQHandler = Default_Handler
 #pragma weak DMA2_Stream6_IRQHandler = Default_Handler
 #pragma weak DMA2_Stream7_IRQHandler = Default_Handler
-#pragma weak USART6_IRQHandler = Default_Handler
+// #pragma weak USART6_IRQHandler = Default_Handler
 #pragma weak I2C3_EV_IRQHandler = Default_Handler
 #pragma weak I2C3_ER_IRQHandler = Default_Handler
 #pragma weak OTG_HS_EP1_OUT_IRQHandler = Default_Handler
@@ -411,8 +411,8 @@ void (* const __Vectors[])() __attribute__ ((section(".isr_vector"))) =
 #pragma weak DCMI_IRQHandler = Default_Handler
 #pragma weak RNG_IRQHandler = Default_Handler
 #pragma weak FPU_IRQHandler = Default_Handler
-#pragma weak UART7_IRQHandler = Default_Handler
-#pragma weak UART8_IRQHandler = Default_Handler
+// #pragma weak UART7_IRQHandler = Default_Handler
+// #pragma weak UART8_IRQHandler = Default_Handler
 #pragma weak SPI4_IRQHandler = Default_Handler
 #pragma weak SPI5_IRQHandler = Default_Handler
 #pragma weak SPI6_IRQHandler = Default_Handler
diff --git a/miosix/arch/cortexM7_stm32f7/stm32f767zi_nucleo/core/stage_1_boot.cpp b/miosix/arch/cortexM7_stm32f7/stm32f767zi_nucleo/core/stage_1_boot.cpp
index edb932de..68959563 100644
--- a/miosix/arch/cortexM7_stm32f7/stm32f767zi_nucleo/core/stage_1_boot.cpp
+++ b/miosix/arch/cortexM7_stm32f7/stm32f767zi_nucleo/core/stage_1_boot.cpp
@@ -396,9 +396,9 @@ void (*const __Vectors[])() __attribute__((section(".isr_vector"))) =
 #pragma weak I2C2_ER_IRQHandler = Default_Handler
 #pragma weak SPI1_IRQHandler = Default_Handler
 #pragma weak SPI2_IRQHandler = Default_Handler
-#pragma weak USART1_IRQHandler = Default_Handler
-#pragma weak USART2_IRQHandler = Default_Handler
-#pragma weak USART3_IRQHandler = Default_Handler
+// #pragma weak USART1_IRQHandler = Default_Handler
+// #pragma weak USART2_IRQHandler = Default_Handler
+// #pragma weak USART3_IRQHandler = Default_Handler
 #pragma weak EXTI15_10_IRQHandler = Default_Handler
 #pragma weak RTC_Alarm_IRQHandler = Default_Handler
 #pragma weak OTG_FS_WKUP_IRQHandler = Default_Handler
@@ -411,8 +411,8 @@ void (*const __Vectors[])() __attribute__((section(".isr_vector"))) =
 #pragma weak SDMMC1_IRQHandler = Default_Handler
 #pragma weak TIM5_IRQHandler = Default_Handler
 #pragma weak SPI3_IRQHandler = Default_Handler
-#pragma weak UART4_IRQHandler = Default_Handler
-#pragma weak UART5_IRQHandler = Default_Handler
+// #pragma weak UART4_IRQHandler = Default_Handler
+// #pragma weak UART5_IRQHandler = Default_Handler
 #pragma weak TIM6_DAC_IRQHandler = Default_Handler
 #pragma weak TIM7_IRQHandler = Default_Handler
 #pragma weak DMA2_Stream0_IRQHandler = Default_Handler
@@ -430,7 +430,7 @@ void (*const __Vectors[])() __attribute__((section(".isr_vector"))) =
 #pragma weak DMA2_Stream5_IRQHandler = Default_Handler
 #pragma weak DMA2_Stream6_IRQHandler = Default_Handler
 #pragma weak DMA2_Stream7_IRQHandler = Default_Handler
-#pragma weak USART6_IRQHandler = Default_Handler
+// #pragma weak USART6_IRQHandler = Default_Handler
 #pragma weak I2C3_EV_IRQHandler = Default_Handler
 #pragma weak I2C3_ER_IRQHandler = Default_Handler
 #pragma weak OTG_HS_EP1_OUT_IRQHandler = Default_Handler
@@ -441,8 +441,8 @@ void (*const __Vectors[])() __attribute__((section(".isr_vector"))) =
 #pragma weak CRYP_IRQHandler = Default_Handler
 #pragma weak RNG_IRQHandler = Default_Handler
 #pragma weak FPU_IRQHandler = Default_Handler
-#pragma weak UART7_IRQHandler = Default_Handler
-#pragma weak UART8_IRQHandler = Default_Handler
+// #pragma weak UART7_IRQHandler = Default_Handler
+// #pragma weak UART8_IRQHandler = Default_Handler
 #pragma weak SPI4_IRQHandler = Default_Handler
 #pragma weak SPI5_IRQHandler = Default_Handler
 #pragma weak SPI6_IRQHandler = Default_Handler
diff --git a/miosix/arch/cortexM7_stm32f7/stm32f769ni_discovery/core/stage_1_boot.cpp b/miosix/arch/cortexM7_stm32f7/stm32f769ni_discovery/core/stage_1_boot.cpp
index ae2ecded..e8ba2135 100644
--- a/miosix/arch/cortexM7_stm32f7/stm32f769ni_discovery/core/stage_1_boot.cpp
+++ b/miosix/arch/cortexM7_stm32f7/stm32f769ni_discovery/core/stage_1_boot.cpp
@@ -406,9 +406,9 @@ void (*const __Vectors[])() __attribute__((section(".isr_vector"))) =
 #pragma weak I2C2_ER_IRQHandler = Default_Handler
 #pragma weak SPI1_IRQHandler = Default_Handler
 #pragma weak SPI2_IRQHandler = Default_Handler
-#pragma weak USART1_IRQHandler = Default_Handler
-#pragma weak USART2_IRQHandler = Default_Handler
-#pragma weak USART3_IRQHandler = Default_Handler
+// #pragma weak USART1_IRQHandler = Default_Handler
+// #pragma weak USART2_IRQHandler = Default_Handler
+// #pragma weak USART3_IRQHandler = Default_Handler
 #pragma weak EXTI15_10_IRQHandler = Default_Handler
 #pragma weak RTC_Alarm_IRQHandler = Default_Handler
 #pragma weak OTG_FS_WKUP_IRQHandler = Default_Handler
@@ -421,8 +421,8 @@ void (*const __Vectors[])() __attribute__((section(".isr_vector"))) =
 #pragma weak SDMMC1_IRQHandler = Default_Handler
 #pragma weak TIM5_IRQHandler = Default_Handler
 #pragma weak SPI3_IRQHandler = Default_Handler
-#pragma weak UART4_IRQHandler = Default_Handler
-#pragma weak UART5_IRQHandler = Default_Handler
+// #pragma weak UART4_IRQHandler = Default_Handler
+// #pragma weak UART5_IRQHandler = Default_Handler
 #pragma weak TIM6_DAC_IRQHandler = Default_Handler
 #pragma weak TIM7_IRQHandler = Default_Handler
 #pragma weak DMA2_Stream0_IRQHandler = Default_Handler
@@ -440,7 +440,7 @@ void (*const __Vectors[])() __attribute__((section(".isr_vector"))) =
 #pragma weak DMA2_Stream5_IRQHandler = Default_Handler
 #pragma weak DMA2_Stream6_IRQHandler = Default_Handler
 #pragma weak DMA2_Stream7_IRQHandler = Default_Handler
-#pragma weak USART6_IRQHandler = Default_Handler
+// #pragma weak USART6_IRQHandler = Default_Handler
 #pragma weak I2C3_EV_IRQHandler = Default_Handler
 #pragma weak I2C3_ER_IRQHandler = Default_Handler
 #pragma weak OTG_HS_EP1_OUT_IRQHandler = Default_Handler
@@ -451,8 +451,8 @@ void (*const __Vectors[])() __attribute__((section(".isr_vector"))) =
 #pragma weak CRYP_IRQHandler = Default_Handler
 #pragma weak RNG_IRQHandler = Default_Handler
 #pragma weak FPU_IRQHandler = Default_Handler
-#pragma weak UART7_IRQHandler = Default_Handler
-#pragma weak UART8_IRQHandler = Default_Handler
+// #pragma weak UART7_IRQHandler = Default_Handler
+// #pragma weak UART8_IRQHandler = Default_Handler
 #pragma weak SPI4_IRQHandler = Default_Handler
 #pragma weak SPI5_IRQHandler = Default_Handler
 #pragma weak SPI6_IRQHandler = Default_Handler
diff --git a/miosix/arch/cortexM7_stm32h7/stm32h753xi_eval/core/stage_1_boot.cpp b/miosix/arch/cortexM7_stm32h7/stm32h753xi_eval/core/stage_1_boot.cpp
index 0f1c89a9..b595020c 100644
--- a/miosix/arch/cortexM7_stm32h7/stm32h753xi_eval/core/stage_1_boot.cpp
+++ b/miosix/arch/cortexM7_stm32h7/stm32h753xi_eval/core/stage_1_boot.cpp
@@ -463,9 +463,9 @@ void (* const __Vectors[])() __attribute__ ((section(".isr_vector"))) =
 #pragma weak I2C2_ER_IRQHandler = Default_Handler
 #pragma weak SPI1_IRQHandler = Default_Handler
 #pragma weak SPI2_IRQHandler = Default_Handler
-#pragma weak USART1_IRQHandler = Default_Handler
-#pragma weak USART2_IRQHandler = Default_Handler
-#pragma weak USART3_IRQHandler = Default_Handler
+// #pragma weak USART1_IRQHandler = Default_Handler
+// #pragma weak USART2_IRQHandler = Default_Handler
+// #pragma weak USART3_IRQHandler = Default_Handler
 #pragma weak EXTI15_10_IRQHandler = Default_Handler
 #pragma weak RTC_Alarm_IRQHandler = Default_Handler
 #pragma weak TIM8_BRK_TIM12_IRQHandler = Default_Handler
@@ -477,8 +477,8 @@ void (* const __Vectors[])() __attribute__ ((section(".isr_vector"))) =
 #pragma weak SDMMC1_IRQHandler = Default_Handler
 #pragma weak TIM5_IRQHandler = Default_Handler
 #pragma weak SPI3_IRQHandler = Default_Handler
-#pragma weak UART4_IRQHandler = Default_Handler
-#pragma weak UART5_IRQHandler = Default_Handler
+// #pragma weak UART4_IRQHandler = Default_Handler
+// #pragma weak UART5_IRQHandler = Default_Handler
 #pragma weak TIM6_DAC_IRQHandler = Default_Handler
 #pragma weak TIM7_IRQHandler = Default_Handler
 #pragma weak DMA2_Stream0_IRQHandler = Default_Handler
@@ -492,7 +492,7 @@ void (* const __Vectors[])() __attribute__ ((section(".isr_vector"))) =
 #pragma weak DMA2_Stream5_IRQHandler = Default_Handler
 #pragma weak DMA2_Stream6_IRQHandler = Default_Handler
 #pragma weak DMA2_Stream7_IRQHandler = Default_Handler
-#pragma weak USART6_IRQHandler = Default_Handler
+// #pragma weak USART6_IRQHandler = Default_Handler
 #pragma weak I2C3_EV_IRQHandler = Default_Handler
 #pragma weak I2C3_ER_IRQHandler = Default_Handler
 #pragma weak OTG_HS_EP1_OUT_IRQHandler = Default_Handler
@@ -503,8 +503,8 @@ void (* const __Vectors[])() __attribute__ ((section(".isr_vector"))) =
 #pragma weak CRYP_IRQHandler = Default_Handler
 #pragma weak HASH_RNG_IRQHandler = Default_Handler
 #pragma weak FPU_IRQHandler = Default_Handler
-#pragma weak UART7_IRQHandler = Default_Handler
-#pragma weak UART8_IRQHandler = Default_Handler
+// #pragma weak UART7_IRQHandler = Default_Handler
+// #pragma weak UART8_IRQHandler = Default_Handler
 #pragma weak SPI4_IRQHandler = Default_Handler
 #pragma weak SPI5_IRQHandler = Default_Handler
 #pragma weak SPI6_IRQHandler = Default_Handler
-- 
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