diff --git a/targets/TARGET_STM/TARGET_STM32L0/TARGET_DISCO_L072CZ_LRWAN1/PeripheralPins.c b/targets/TARGET_STM/TARGET_STM32L0/TARGET_DISCO_L072CZ_LRWAN1/PeripheralPins.c
index 338e13a737..25b65056f9 100644
--- a/targets/TARGET_STM/TARGET_STM32L0/TARGET_DISCO_L072CZ_LRWAN1/PeripheralPins.c
+++ b/targets/TARGET_STM/TARGET_STM32L0/TARGET_DISCO_L072CZ_LRWAN1/PeripheralPins.c
@@ -66,7 +66,7 @@ const PinMap PinMap_DAC[] = {
 //*** I2C ***
 
 const PinMap PinMap_I2C_SDA[] = {
-//  {PA_10, I2C_1, STM_PIN_DATA(STM_MODE_AF_OD, GPIO_NOPULL, GPIO_AF6_I2C1)}, // aleso used by UART RX
+//  {PA_10, I2C_1, STM_PIN_DATA(STM_MODE_AF_OD, GPIO_NOPULL, GPIO_AF6_I2C1)}, // also used by UART RX
 //  {PB_4,  I2C_3, STM_PIN_DATA(STM_MODE_AF_OD, GPIO_NOPULL, GPIO_AF7_I2C3)},
     {PB_7,  I2C_1, STM_PIN_DATA(STM_MODE_AF_OD, GPIO_NOPULL, GPIO_AF1_I2C1)}, // also used to drive the LED LD4
     {PB_9,  I2C_1, STM_PIN_DATA(STM_MODE_AF_OD, GPIO_NOPULL, GPIO_AF4_I2C1)},
@@ -141,8 +141,8 @@ const PinMap PinMap_UART_RX[] = {
     {PA_10, UART_1,   STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF4_USART1)},
 //  {PA_13, LPUART_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF6_LPUART1)}, // Warning: this pin is used by SWDIO
     {PA_15, UART_2,   STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF4_USART2)},
-//  {PB_4,  UART_5,   STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF6_USART5)},  // Waring: this pin is used by LD4
-    {PB_7,  UART_1,   STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF0_USART1)},
+//  {PB_4,  UART_5,   STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF6_USART5)}, 
+    {PB_7,  UART_1,   STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF0_USART1)},  // Warning: this pin is used by LD4
 //  {PB_10, LPUART_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF7_LPUART1)}, // Already used by UART_TX
 //  {PB_11, LPUART_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF4_LPUART1)},
 //  {PC_0,  LPUART_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF6_LPUART1)},
@@ -155,7 +155,7 @@ const PinMap PinMap_UART_RTS[] = {
     {PA_15, UART_4,   STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF6_USART4)},
 //  {PB_1,  LPUART_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF4_LPUART1)},
 //  {PB_3,  UART_1,   STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF5_USART1)},
-    {PB_5,  UART_5,   STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF6_USART5)},  // Waring: this pin is used by LD1
+    {PB_5,  UART_5,   STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF6_USART5)},  // Warning: this pin is used by LD1
     {PB_12, LPUART_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_LPUART1)},
     {PB_14, LPUART_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF4_LPUART1)},
     {NC,    NC,    0}
@@ -166,7 +166,7 @@ const PinMap PinMap_UART_CTS[] = {
 //  {PA_6,  LPUART_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF4_LPUART1)},
     {PA_11, UART_1,   STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF4_USART1)},
 //  {PB_4,  UART_1,   STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF5_USART1)},
-    {PB_7,  UART_4,   STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF6_USART4)},  // Waring: this pin is used by LD4
+    {PB_7,  UART_4,   STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF6_USART4)},  // Warning: this pin is used by LD4
     {PB_13, LPUART_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF4_LPUART1)},
     {NC,    NC,    0}
 };
@@ -176,7 +176,7 @@ const PinMap PinMap_UART_CTS[] = {
 const PinMap PinMap_SPI_MOSI[] = {
 //  {PA_7,  SPI_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF0_SPI1)},
     {PA_12, SPI_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF0_SPI1)},
-    {PB_5,  SPI_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF0_SPI1)},  // Waring: this pin is used by LD1
+    {PB_5,  SPI_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF0_SPI1)},  // Warning: this pin is used by LD1
     {PB_15, SPI_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF0_SPI2)},
     {NC,    NC,    0}
 };