diff --git a/hw/bsp/mm32/boards/mm32f327x_bluepillplus/flash.ld b/hw/bsp/mm32/boards/mm32f327x_bluepillplus/flash.ld
index 0b45ee7bd..796ed04f6 100644
--- a/hw/bsp/mm32/boards/mm32f327x_bluepillplus/flash.ld
+++ b/hw/bsp/mm32/boards/mm32f327x_bluepillplus/flash.ld
@@ -1,4 +1,4 @@
-/* 
+/*
  * The MIT License (MIT)
  *
  * Copyright (c) 2020 MM32 SE TEAM
@@ -110,7 +110,7 @@ SECTIONS
   _sidata = LOADADDR(.data);
 
   /* Initialized data sections goes into RAM, load LMA copy after code */
-  .data : 
+  .data :
   {
     . = ALIGN(4);
     _sdata = .;        /* create a global symbol at data start */
@@ -121,7 +121,7 @@ SECTIONS
     _edata = .;        /* define a global symbol at data end */
   } >RAM AT> FLASH
 
-  
+
   /* Uninitialized data section */
   . = ALIGN(4);
   .bss :
@@ -149,7 +149,7 @@ SECTIONS
     . = ALIGN(8);
   } >RAM
 
-  
+
 
   /* Remove information from the standard libraries */
   /DISCARD/ :
diff --git a/hw/bsp/mm32/boards/mm32f327x_bluepillplus/mm32f327x_bluepillplus.c b/hw/bsp/mm32/boards/mm32f327x_bluepillplus/mm32f327x_bluepillplus.c
index 08abc83c6..0a07dc749 100644
--- a/hw/bsp/mm32/boards/mm32f327x_bluepillplus/mm32f327x_bluepillplus.c
+++ b/hw/bsp/mm32/boards/mm32f327x_bluepillplus/mm32f327x_bluepillplus.c
@@ -1,4 +1,4 @@
-/* 
+/*
  * The MIT License (MIT)
  *
  * Copyright (c) 2020 MM32 SE TEAM
@@ -59,7 +59,7 @@ const int baudrate = 115200;
 
 void board_init (void)
 {
-//   usb clock	
+//   usb clock
   USB_DeviceClockInit();
 
   if ( SysTick_Config(SystemCoreClock / 1000) )
diff --git a/hw/bsp/mm32/boards/mm32f327x_pitaya_lite/flash.ld b/hw/bsp/mm32/boards/mm32f327x_pitaya_lite/flash.ld
index 0b45ee7bd..796ed04f6 100644
--- a/hw/bsp/mm32/boards/mm32f327x_pitaya_lite/flash.ld
+++ b/hw/bsp/mm32/boards/mm32f327x_pitaya_lite/flash.ld
@@ -1,4 +1,4 @@
-/* 
+/*
  * The MIT License (MIT)
  *
  * Copyright (c) 2020 MM32 SE TEAM
@@ -110,7 +110,7 @@ SECTIONS
   _sidata = LOADADDR(.data);
 
   /* Initialized data sections goes into RAM, load LMA copy after code */
-  .data : 
+  .data :
   {
     . = ALIGN(4);
     _sdata = .;        /* create a global symbol at data start */
@@ -121,7 +121,7 @@ SECTIONS
     _edata = .;        /* define a global symbol at data end */
   } >RAM AT> FLASH
 
-  
+
   /* Uninitialized data section */
   . = ALIGN(4);
   .bss :
@@ -149,7 +149,7 @@ SECTIONS
     . = ALIGN(8);
   } >RAM
 
-  
+
 
   /* Remove information from the standard libraries */
   /DISCARD/ :
diff --git a/hw/bsp/mm32/boards/mm32f327x_pitaya_lite/mm32f327x_pitaya_lite.c b/hw/bsp/mm32/boards/mm32f327x_pitaya_lite/mm32f327x_pitaya_lite.c
index 819b440e5..381e93e11 100644
--- a/hw/bsp/mm32/boards/mm32f327x_pitaya_lite/mm32f327x_pitaya_lite.c
+++ b/hw/bsp/mm32/boards/mm32f327x_pitaya_lite/mm32f327x_pitaya_lite.c
@@ -1,4 +1,4 @@
-/* 
+/*
  * The MIT License (MIT)
  *
  * Copyright (c) 2020 MM32 SE TEAM