diff --git a/targets/TARGET_STM/TARGET_STM32F2/STM32Cube_FW/CMSIS/stm32f205xx.h b/targets/TARGET_STM/TARGET_STM32F2/STM32Cube_FW/CMSIS/stm32f205xx.h
index d86312ed09..c315ffd322 100644
--- a/targets/TARGET_STM/TARGET_STM32F2/STM32Cube_FW/CMSIS/stm32f205xx.h
+++ b/targets/TARGET_STM/TARGET_STM32F2/STM32Cube_FW/CMSIS/stm32f205xx.h
@@ -7,7 +7,7 @@
   *          This file contains :  
   *           - Data structures and the address mapping for all peripherals
   *           - Peripherals registers declarations and bits definition
-  *           - Macros to access peripheral’s registers hardware
+  *           - Macros to access peripheral's registers hardware
   *
   ******************************************************************************
   * @attention
diff --git a/targets/TARGET_STM/TARGET_STM32F2/STM32Cube_FW/CMSIS/stm32f207xx.h b/targets/TARGET_STM/TARGET_STM32F2/STM32Cube_FW/CMSIS/stm32f207xx.h
index b6eb4dc63d..9182ea9b56 100644
--- a/targets/TARGET_STM/TARGET_STM32F2/STM32Cube_FW/CMSIS/stm32f207xx.h
+++ b/targets/TARGET_STM/TARGET_STM32F2/STM32Cube_FW/CMSIS/stm32f207xx.h
@@ -7,7 +7,7 @@
   *          This file contains :  
   *           - Data structures and the address mapping for all peripherals
   *           - Peripherals registers declarations and bits definition
-  *           - Macros to access peripheral’s registers hardware
+  *           - Macros to access peripheral's registers hardware
   *
   ******************************************************************************
   * @attention
diff --git a/targets/TARGET_STM/TARGET_STM32F2/STM32Cube_FW/CMSIS/stm32f215xx.h b/targets/TARGET_STM/TARGET_STM32F2/STM32Cube_FW/CMSIS/stm32f215xx.h
index 6c33ec9822..fa440202f0 100644
--- a/targets/TARGET_STM/TARGET_STM32F2/STM32Cube_FW/CMSIS/stm32f215xx.h
+++ b/targets/TARGET_STM/TARGET_STM32F2/STM32Cube_FW/CMSIS/stm32f215xx.h
@@ -7,7 +7,7 @@
   *          This file contains :  
   *           - Data structures and the address mapping for all peripherals
   *           - Peripherals registers declarations and bits definition
-  *           - Macros to access peripheral’s registers hardware
+  *           - Macros to access peripheral's registers hardware
   *
   ******************************************************************************
   * @attention
diff --git a/targets/TARGET_STM/TARGET_STM32F2/STM32Cube_FW/CMSIS/stm32f217xx.h b/targets/TARGET_STM/TARGET_STM32F2/STM32Cube_FW/CMSIS/stm32f217xx.h
index 78dc95465a..7164bb71ca 100644
--- a/targets/TARGET_STM/TARGET_STM32F2/STM32Cube_FW/CMSIS/stm32f217xx.h
+++ b/targets/TARGET_STM/TARGET_STM32F2/STM32Cube_FW/CMSIS/stm32f217xx.h
@@ -7,7 +7,7 @@
   *          This file contains :  
   *           - Data structures and the address mapping for all peripherals
   *           - Peripherals registers declarations and bits definition
-  *           - Macros to access peripheral’s registers hardware
+  *           - Macros to access peripheral's registers hardware
   *
   ******************************************************************************
   * @attention
diff --git a/targets/TARGET_STM/TARGET_STM32F2/STM32Cube_FW/CMSIS/stm32f2xx.h b/targets/TARGET_STM/TARGET_STM32F2/STM32Cube_FW/CMSIS/stm32f2xx.h
index 4c26e62608..5d643dcfd9 100644
--- a/targets/TARGET_STM/TARGET_STM32F2/STM32Cube_FW/CMSIS/stm32f2xx.h
+++ b/targets/TARGET_STM/TARGET_STM32F2/STM32Cube_FW/CMSIS/stm32f2xx.h
@@ -8,8 +8,8 @@
   *          is using in the C source code, usually in main.c. This file contains:
   *           - Configuration section that allows to select:
   *              - The STM32F2xx device used in the target application
-  *              - To use or not the peripheral’s drivers in application code(i.e. 
-  *                code will be based on direct access to peripheral’s registers 
+  *              - To use or not the peripheral's drivers in application code(i.e.
+  *                code will be based on direct access to peripheral's registers
   *                rather than drivers API), this option is controlled by 
   *                "#define USE_HAL_DRIVER"
   *  
diff --git a/targets/TARGET_STM/TARGET_STM32F2/STM32Cube_FW/STM32F2xx_HAL_Driver/stm32f2xx_hal_cryp.c b/targets/TARGET_STM/TARGET_STM32F2/STM32Cube_FW/STM32F2xx_HAL_Driver/stm32f2xx_hal_cryp.c
index d0f654acc5..db59205632 100644
--- a/targets/TARGET_STM/TARGET_STM32F2/STM32Cube_FW/STM32F2xx_HAL_Driver/stm32f2xx_hal_cryp.c
+++ b/targets/TARGET_STM/TARGET_STM32F2/STM32Cube_FW/STM32F2xx_HAL_Driver/stm32f2xx_hal_cryp.c
@@ -299,7 +299,7 @@ HAL_StatusTypeDef HAL_CRYP_Init(CRYP_HandleTypeDef *hcryp)
   }
 #endif /* (USE_HAL_CRYP_REGISTER_CALLBACKS) */
 
-  /* Set the key size(This bit field is ‘don’t care’ in the DES or TDES modes) data type and Algorithm */
+  /* Set the key size(This bit field is "don't care" in the DES or TDES modes) data type and Algorithm */
   MODIFY_REG(hcryp->Instance->CR, CRYP_CR_DATATYPE|CRYP_CR_KEYSIZE|CRYP_CR_ALGOMODE, hcryp->Init.DataType | hcryp->Init.KeySize | hcryp->Init.Algorithm);
 
   /* Reset Error Code field */
@@ -398,7 +398,7 @@ HAL_StatusTypeDef HAL_CRYP_SetConfig(CRYP_HandleTypeDef *hcryp, CRYP_ConfigTypeD
     hcryp->Init.KeySize      = pConf->KeySize;
     hcryp->Init.pInitVect    = pConf->pInitVect;
 
-    /* Set the key size(This bit field is ‘don’t care’ in the DES or TDES modes) data type, AlgoMode and operating mode*/
+    /* Set the key size(This bit field is "don't care" in the DES or TDES modes) data type, AlgoMode and operating mode*/
     MODIFY_REG(hcryp->Instance->CR, CRYP_CR_DATATYPE|CRYP_CR_KEYSIZE|CRYP_CR_ALGOMODE, hcryp->Init.DataType | hcryp->Init.KeySize | hcryp->Init.Algorithm);
 
     /* Process Unlocked */
diff --git a/targets/TARGET_STM/TARGET_STM32F2/STM32Cube_FW/STM32F2xx_HAL_Driver/stm32f2xx_hal_wwdg.c b/targets/TARGET_STM/TARGET_STM32F2/STM32Cube_FW/STM32F2xx_HAL_Driver/stm32f2xx_hal_wwdg.c
index 6850ad2535..39846d93a5 100644
--- a/targets/TARGET_STM/TARGET_STM32F2/STM32Cube_FW/STM32F2xx_HAL_Driver/stm32f2xx_hal_wwdg.c
+++ b/targets/TARGET_STM/TARGET_STM32F2/STM32Cube_FW/STM32F2xx_HAL_Driver/stm32f2xx_hal_wwdg.c
@@ -40,7 +40,7 @@
         (++) max time (mS) = 1000 * (Counter - 0x40) / WWDG clock
     (+) Typical values:
         (++) Counter min (T[5;0] = 0x00) at 30MHz (PCLK1) with zero prescaler:
-             max timeout before reset: approximately 136.53µs
+             max timeout before reset: approximately 136.53us
         (++) Counter max (T[5;0] = 0x3F) at 30MHz (PCLK1) with prescaler
              dividing by 8:
              max timeout before reset: approximately 69.91ms