diff --git a/hal/targets.json b/hal/targets.json
index 4dbfb2d42f2..4ce3dc68717 100644
--- a/hal/targets.json
+++ b/hal/targets.json
@@ -717,7 +717,7 @@
         "inherits": ["Target"],
         "progen": {"target": "nucleo-f302r8"},
         "detect_code": ["0705"],
-        "device_has": ["ANALOGIN", "ANALOGOUT", "CAN", "I2C", "I2CSLAVE", "INTERRUPTIN", "PORTIN", "PORTINOUT", "PORTOUT", "PWMOUT", "RTC", "SERIAL", "SERIAL_ASYNCH", "SLEEP", "SPI", "SPISLAVE", "STDIO_MESSAGES"],
+        "device_has": ["ANALOGIN", "ANALOGOUT", "CAN", "I2C", "I2CSLAVE", "INTERRUPTIN", "PORTIN", "PORTINOUT", "PORTOUT", "PWMOUT", "RTC", "SERIAL", "SERIAL_ASYNCH", "SERIAL_FC", "SLEEP", "SPI", "SPISLAVE", "STDIO_MESSAGES"],
         "default_lib": "small",
         "release_versions": ["2"]
     },
@@ -732,7 +732,7 @@
         "progen": {"target": "nucleo-f303k8"},
         "detect_code": ["0775"],
         "default_lib": "small",
-        "device_has": ["ANALOGIN", "ANALOGOUT", "CAN", "I2C", "I2CSLAVE", "INTERRUPTIN", "PORTIN", "PORTINOUT", "PORTOUT", "PWMOUT", "RTC", "SERIAL", "SLEEP", "SPI", "SPISLAVE", "STDIO_MESSAGES"],
+        "device_has": ["ANALOGIN", "ANALOGOUT", "CAN", "I2C", "I2CSLAVE", "INTERRUPTIN", "PORTIN", "PORTINOUT", "PORTOUT", "PWMOUT", "RTC", "SERIAL", "SERIAL_FC", "SLEEP", "SPI", "SPISLAVE", "STDIO_MESSAGES"],
         "release_versions": ["2"]
     },
     "NUCLEO_F303RE": {
@@ -744,7 +744,7 @@
         "inherits": ["Target"],
         "progen": {"target": "nucleo-f303re"},
         "detect_code": ["0745"],
-        "device_has": ["ANALOGIN", "ANALOGOUT", "CAN", "I2C", "I2CSLAVE", "INTERRUPTIN", "PORTIN", "PORTINOUT", "PORTOUT", "PWMOUT", "RTC", "SERIAL", "SERIAL_ASYNCH", "SLEEP", "SPI", "SPISLAVE", "STDIO_MESSAGES"],
+        "device_has": ["ANALOGIN", "ANALOGOUT", "CAN", "I2C", "I2CSLAVE", "INTERRUPTIN", "PORTIN", "PORTINOUT", "PORTOUT", "PWMOUT", "RTC", "SERIAL", "SERIAL_ASYNCH", "SERIAL_FC", "SLEEP", "SPI", "SPISLAVE", "STDIO_MESSAGES"],
         "release_versions": ["2", "5"]
     },
     "NUCLEO_F303ZE": {
@@ -769,7 +769,7 @@
         "inherits": ["Target"],
         "progen": {"target": "nucleo-f334r8"},
         "detect_code": ["0735"],
-        "device_has": ["ANALOGIN", "ANALOGOUT", "CAN", "I2C", "I2CSLAVE", "INTERRUPTIN", "PORTIN", "PORTINOUT", "PORTOUT", "PWMOUT", "RTC", "SERIAL", "SERIAL_ASYNCH", "SLEEP", "SPI", "SPISLAVE", "STDIO_MESSAGES"],
+        "device_has": ["ANALOGIN", "ANALOGOUT", "CAN", "I2C", "I2CSLAVE", "INTERRUPTIN", "PORTIN", "PORTINOUT", "PORTOUT", "PWMOUT", "RTC", "SERIAL", "SERIAL_ASYNCH", "SERIAL_FC", "SLEEP", "SPI", "SPISLAVE", "STDIO_MESSAGES"],
         "default_lib": "small",
         "release_versions": ["2"]
     },
@@ -1040,7 +1040,7 @@
         "extra_labels": ["STM", "STM32F3", "STM32F303", "STM32F303VC"],
         "macros": ["DEVICE_RTC_LSI=1"],
         "supported_toolchains": ["GCC_ARM"],
-        "device_has": ["ANALOGIN", "ANALOGOUT", "I2C", "I2CSLAVE", "INTERRUPTIN", "PORTIN", "PORTINOUT", "PORTOUT", "PWMOUT", "RTC", "SERIAL", "SLEEP", "SPI", "SPISLAVE", "STDIO_MESSAGES"]
+        "device_has": ["ANALOGIN", "ANALOGOUT", "I2C", "I2CSLAVE", "INTERRUPTIN", "PORTIN", "PORTINOUT", "PORTOUT", "PWMOUT", "RTC", "RTC_LSI", "SERIAL", "SERIAL_FC", "SLEEP", "SPI", "SPISLAVE", "STDIO_MESSAGES"]
     },
     "DISCO_F334C8": {
         "inherits": ["Target"],
@@ -1051,9 +1051,9 @@
         "supported_toolchains": ["ARM", "uARM", "IAR", "GCC_ARM"],
         "progen": {"target": "disco-f334c8"},
         "detect_code": ["0810"],
-        "device_has": ["ANALOGIN", "ANALOGOUT", "I2C", "I2CSLAVE", "INTERRUPTIN", "PORTIN", "PORTINOUT", "PORTOUT", "PWMOUT", "RTC", "SERIAL", "SERIAL_ASYNCH", "SLEEP", "SPI", "SPISLAVE", "STDIO_MESSAGES"],
+        "device_has": ["ANALOGIN", "ANALOGOUT", "I2C", "I2CSLAVE", "INTERRUPTIN", "PORTIN", "PORTINOUT", "PORTOUT", "PWMOUT", "RTC", "RTC_LSI", "SERIAL", "SERIAL_ASYNCH", "SERIAL_FC", "SLEEP", "SPI", "SPISLAVE", "STDIO_MESSAGES"],
         "default_lib": "small",
-	"release_versions": ["2"]
+        "release_versions": ["2"]
     },
     "DISCO_F407VG": {
         "inherits": ["Target"],
diff --git a/hal/targets/hal/TARGET_STM/TARGET_STM32F3/PeripheralPins.h b/hal/targets/hal/TARGET_STM/TARGET_STM32F3/PeripheralPins.h
index e6077cf110d..433c6304002 100644
--- a/hal/targets/hal/TARGET_STM/TARGET_STM32F3/PeripheralPins.h
+++ b/hal/targets/hal/TARGET_STM/TARGET_STM32F3/PeripheralPins.h
@@ -55,6 +55,8 @@ extern const PinMap PinMap_PWM[];
 
 extern const PinMap PinMap_UART_TX[];
 extern const PinMap PinMap_UART_RX[];
+extern const PinMap PinMap_UART_RTS[];
+extern const PinMap PinMap_UART_CTS[];
 
 //*** SPI ***
 
diff --git a/hal/targets/hal/TARGET_STM/TARGET_STM32F3/TARGET_DISCO_F303VC/PeripheralPins.c b/hal/targets/hal/TARGET_STM/TARGET_STM32F3/TARGET_DISCO_F303VC/PeripheralPins.c
index e0905cda927..b131adfb84c 100644
--- a/hal/targets/hal/TARGET_STM/TARGET_STM32F3/TARGET_DISCO_F303VC/PeripheralPins.c
+++ b/hal/targets/hal/TARGET_STM/TARGET_STM32F3/TARGET_DISCO_F303VC/PeripheralPins.c
@@ -1,6 +1,6 @@
 /* mbed Microcontroller Library
  *******************************************************************************
- * Copyright (c) 2015, STMicroelectronics
+ * Copyright (c) 2016, STMicroelectronics
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -228,6 +228,26 @@ const PinMap PinMap_UART_RX[] = {
     {NC,    NC,     0}
 };
 
+const PinMap PinMap_UART_RTS[] = {
+    {PA_1,  UART_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF7_USART2)},
+    {PB_14, UART_3, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF7_USART3)},
+    {PD_12, UART_3, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF7_USART3)},
+    {PA_12, UART_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF7_USART1)},
+    {PF_6,  UART_3, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF7_USART3)},
+    {PD_4,  UART_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF7_USART2)},
+    {NC,    NC,    0}
+};
+
+const PinMap PinMap_UART_CTS[] = {
+    {PA_0,  UART_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF7_USART2)},
+    {PB_13, UART_3, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF7_USART3)},
+    {PD_11, UART_3, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF7_USART3)},
+    {PA_11, UART_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF7_USART1)},
+    {PA_13, UART_3, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF7_USART3)},
+    {PD_3,  UART_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF7_USART2)},
+    {NC,    NC,    0}
+};
+
 //*** SPI ***
 
 const PinMap PinMap_SPI_MOSI[] = {
diff --git a/hal/targets/hal/TARGET_STM/TARGET_STM32F3/TARGET_DISCO_F334C8/PeripheralPins.c b/hal/targets/hal/TARGET_STM/TARGET_STM32F3/TARGET_DISCO_F334C8/PeripheralPins.c
index 486f07cff65..9e38ad94fed 100644
--- a/hal/targets/hal/TARGET_STM/TARGET_STM32F3/TARGET_DISCO_F334C8/PeripheralPins.c
+++ b/hal/targets/hal/TARGET_STM/TARGET_STM32F3/TARGET_DISCO_F334C8/PeripheralPins.c
@@ -1,6 +1,6 @@
 /* mbed Microcontroller Library
  *******************************************************************************
- * Copyright (c) 2015, STMicroelectronics
+ * Copyright (c) 2016, STMicroelectronics
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -167,6 +167,20 @@ const PinMap PinMap_UART_RX[] = {
     {NC,    NC,     0}
 };
 
+const PinMap PinMap_UART_RTS[] = {
+    {PA_1,  UART_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF7_USART2)},
+    {PB_14, UART_3, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF7_USART3)},
+    {PA_12, UART_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF7_USART1)},
+    {NC,    NC,    0}
+};
+
+const PinMap PinMap_UART_CTS[] = {
+    {PA_0,  UART_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF7_USART2)},
+    {PB_13, UART_3, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF7_USART3)},
+    {PA_11, UART_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF7_USART1)},
+    {PA_13, UART_3, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF7_USART3)},
+    {NC,    NC,    0}
+};
 
 //*** SPI ***
 
diff --git a/hal/targets/hal/TARGET_STM/TARGET_STM32F3/TARGET_NUCLEO_F302R8/PeripheralPins.c b/hal/targets/hal/TARGET_STM/TARGET_STM32F3/TARGET_NUCLEO_F302R8/PeripheralPins.c
index a8695d8a749..71b7776b56c 100644
--- a/hal/targets/hal/TARGET_STM/TARGET_STM32F3/TARGET_NUCLEO_F302R8/PeripheralPins.c
+++ b/hal/targets/hal/TARGET_STM/TARGET_STM32F3/TARGET_NUCLEO_F302R8/PeripheralPins.c
@@ -1,6 +1,6 @@
 /* mbed Microcontroller Library
  *******************************************************************************
- * Copyright (c) 2015, STMicroelectronics
+ * Copyright (c) 2016, STMicroelectronics
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -171,6 +171,21 @@ const PinMap PinMap_UART_RX[] = {
     {NC,    NC,     0}
 };
 
+const PinMap PinMap_UART_RTS[] = {
+    {PA_1,  UART_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF7_USART2)},
+    {PB_14, UART_3, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF7_USART3)},
+    {PA_12, UART_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF7_USART1)},
+    {NC,    NC,    0}
+};
+
+const PinMap PinMap_UART_CTS[] = {
+    {PA_0,  UART_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF7_USART2)},
+    {PB_13, UART_3, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF7_USART3)},
+    {PA_11, UART_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF7_USART1)},
+    {PA_13, UART_3, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF7_USART3)},
+    {NC,    NC,    0}
+};
+
 //*** SPI ***
 
 const PinMap PinMap_SPI_MOSI[] = {
diff --git a/hal/targets/hal/TARGET_STM/TARGET_STM32F3/TARGET_NUCLEO_F303K8/PeripheralPins.c b/hal/targets/hal/TARGET_STM/TARGET_STM32F3/TARGET_NUCLEO_F303K8/PeripheralPins.c
index 6dbd71c70a3..6cdd198636a 100644
--- a/hal/targets/hal/TARGET_STM/TARGET_STM32F3/TARGET_NUCLEO_F303K8/PeripheralPins.c
+++ b/hal/targets/hal/TARGET_STM/TARGET_STM32F3/TARGET_NUCLEO_F303K8/PeripheralPins.c
@@ -1,6 +1,6 @@
 /* mbed Microcontroller Library
  *******************************************************************************
- * Copyright (c) 2015, STMicroelectronics
+ * Copyright (c) 2016, STMicroelectronics
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -144,6 +144,19 @@ const PinMap PinMap_UART_RX[] = {
     {NC,    NC,     0}
 };
 
+const PinMap PinMap_UART_RTS[] = {
+    {PA_1,  UART_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF7_USART2)},
+    {PA_12, UART_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF7_USART1)},
+    {NC,    NC,    0}
+};
+
+const PinMap PinMap_UART_CTS[] = {
+    {PA_0,  UART_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF7_USART2)},
+    {PA_11, UART_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF7_USART1)},
+    {PA_13, UART_3, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF7_USART3)},
+    {NC,    NC,    0}
+};
+
 //*** SPI ***
 
 const PinMap PinMap_SPI_MOSI[] = {
diff --git a/hal/targets/hal/TARGET_STM/TARGET_STM32F3/TARGET_NUCLEO_F303RE/PeripheralPins.c b/hal/targets/hal/TARGET_STM/TARGET_STM32F3/TARGET_NUCLEO_F303RE/PeripheralPins.c
index 13c33f170f0..4b823599874 100644
--- a/hal/targets/hal/TARGET_STM/TARGET_STM32F3/TARGET_NUCLEO_F303RE/PeripheralPins.c
+++ b/hal/targets/hal/TARGET_STM/TARGET_STM32F3/TARGET_NUCLEO_F303RE/PeripheralPins.c
@@ -1,6 +1,6 @@
 /* mbed Microcontroller Library
  *******************************************************************************
- * Copyright (c) 2015, STMicroelectronics
+ * Copyright (c) 2016, STMicroelectronics
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -214,6 +214,21 @@ const PinMap PinMap_UART_RX[] = {
     {NC,    NC,     0}
 };
 
+const PinMap PinMap_UART_RTS[] = {
+    {PA_1,  UART_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF7_USART2)},
+    {PB_14, UART_3, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF7_USART3)},
+    {PA_12, UART_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF7_USART1)},
+    {NC,    NC,    0}
+};
+
+const PinMap PinMap_UART_CTS[] = {
+    {PA_0,  UART_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF7_USART2)},
+    {PB_13, UART_3, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF7_USART3)},
+    {PA_11, UART_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF7_USART1)},
+    {PA_13, UART_3, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF7_USART3)},
+    {NC,    NC,    0}
+};
+
 //*** SPI ***
 
 const PinMap PinMap_SPI_MOSI[] = {
diff --git a/hal/targets/hal/TARGET_STM/TARGET_STM32F3/TARGET_NUCLEO_F334R8/PeripheralPins.c b/hal/targets/hal/TARGET_STM/TARGET_STM32F3/TARGET_NUCLEO_F334R8/PeripheralPins.c
index ec22f6efde6..47a43633067 100644
--- a/hal/targets/hal/TARGET_STM/TARGET_STM32F3/TARGET_NUCLEO_F334R8/PeripheralPins.c
+++ b/hal/targets/hal/TARGET_STM/TARGET_STM32F3/TARGET_NUCLEO_F334R8/PeripheralPins.c
@@ -1,6 +1,6 @@
 /* mbed Microcontroller Library
  *******************************************************************************
- * Copyright (c) 2015, STMicroelectronics
+ * Copyright (c) 2016, STMicroelectronics
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -185,6 +185,21 @@ const PinMap PinMap_UART_RX[] = {
     {NC,    NC,     0}
 };
 
+const PinMap PinMap_UART_RTS[] = {
+    {PA_1,  UART_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF7_USART2)},
+    {PB_14, UART_3, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF7_USART3)},
+    {PA_12, UART_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF7_USART1)},
+    {NC,    NC,    0}
+};
+
+const PinMap PinMap_UART_CTS[] = {
+    {PA_0,  UART_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF7_USART2)},
+    {PB_13, UART_3, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF7_USART3)},
+    {PA_11, UART_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF7_USART1)},
+    {PA_13, UART_3, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF7_USART3)},
+    {NC,    NC,    0}
+};
+
 //*** SPI ***
 
 const PinMap PinMap_SPI_MOSI[] = {