diff --git a/libraries/STM32F0xx_StdPeriph_Driver/inc/stm32f0xx_gpio.h b/libraries/STM32F0xx_StdPeriph_Driver/inc/stm32f0xx_gpio.h
--- a/libraries/STM32F0xx_StdPeriph_Driver/inc/stm32f0xx_gpio.h
+++ b/libraries/STM32F0xx_StdPeriph_Driver/inc/stm32f0xx_gpio.h
@@ -342,6 +342,8 @@ void GPIO_Write(GPIO_TypeDef* GPIOx, uin
 /* GPIO Alternate functions configuration functions ***************************/
 void GPIO_PinAFConfig(GPIO_TypeDef* GPIOx, uint16_t GPIO_PinSource, uint8_t GPIO_AF);
 
+void GPIO_ToggleBits(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin);
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/libraries/STM32F0xx_StdPeriph_Driver/src/stm32f0xx_gpio.c b/libraries/STM32F0xx_StdPeriph_Driver/src/stm32f0xx_gpio.c
--- a/libraries/STM32F0xx_StdPeriph_Driver/src/stm32f0xx_gpio.c
+++ b/libraries/STM32F0xx_StdPeriph_Driver/src/stm32f0xx_gpio.c
@@ -523,6 +523,22 @@ void GPIO_PinAFConfig(GPIO_TypeDef* GPIO
   GPIOx->AFR[GPIO_PinSource >> 0x03] = temp_2;
 }
 
+
+/**
+  * @brief  Toggles the specified GPIO pins. NOTE: Imported by EMZ
+  * @param  GPIOx: where x can be (A..H) to select the GPIO peripheral.
+  * @param  GPIO_Pin: Specifies the pins to be toggled.
+  * @retval None
+  */
+void GPIO_ToggleBits(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin)
+{
+  /* Check the parameters */
+  assert_param(IS_GPIO_ALL_PERIPH(GPIOx));
+
+  GPIOx->ODR ^= GPIO_Pin;
+}
+
+
 /**
   * @}
   */