diff --git a/halport/gins.c b/halport/gins.c
index 7f560cc..194224f 100644
--- a/halport/gins.c
+++ b/halport/gins.c
@@ -38,6 +38,7 @@ DEFINE_GLOBAL(DMA_HandleTypeDef, hdma2_stream6);
 DEFINE_GLOBAL(DMA_HandleTypeDef, hdma2_stream7);
 
 DEFINE_GLOBAL(RTC_HandleTypeDef, hrtc);
+DEFINE_GLOBAL(HCD_HandleTypeDef, hhcd_USB_OTG_FS);
 
 
 DMA_Stream_TypeDef* getDmaStreamTypeDef(DMA_HandleTypeDef* dmah) {
diff --git a/halport/gins.h b/halport/gins.h
index 4cc6188..79c29bd 100644
--- a/halport/gins.h
+++ b/halport/gins.h
@@ -63,6 +63,7 @@ EXTERN_GLOBAL(ADC_HandleTypeDef, hadc1);
 EXTERN_GLOBAL(IWDG_HandleTypeDef, hiwdg);
 
 EXTERN_GLOBAL(RTC_HandleTypeDef, hrtc);
+EXTERN_GLOBAL(HCD_HandleTypeDef, hhcd_USB_OTG_FS);
 
 DMA_Stream_TypeDef* getDmaStreamTypeDef(DMA_HandleTypeDef* dmah);
 
diff --git a/halport/stm32irq.c b/halport/stm32irq.c
index 5e16a03..5c6acf3 100644
--- a/halport/stm32irq.c
+++ b/halport/stm32irq.c
@@ -77,6 +77,10 @@ void USART2_IRQHandler(void) { HAL_UART_IRQHandler(&huart2); }
 void USART3_IRQHandler(void) { HAL_UART_IRQHandler(&huart3); }
 void UART4_IRQHandler(void) { HAL_UART_IRQHandler(&huart4); }
 
+void OTG_FS_IRQHandler(void) {
+  HAL_HCD_IRQHandler(&hhcd_USB_OTG_FS);
+}
+
 /***********************************************************************************************************************
  *                                                     HAL IF                                                          *
  ***********************************************************************************************************************/