diff --git a/src/uart.c b/src/uart.c
--- a/src/uart.c
+++ b/src/uart.c
@@ -93,6 +93,8 @@ void uart_deinit(void)
         //HAL_DMA_DeInit(&hdma_usart1_rx);
         //HAL_DMA_DeInit(&hdma_usart1_tx);
         HAL_UART_DeInit(&huart1);
+        __HAL_RCC_USART1_CLK_DISABLE();
+
         uart_initted = 0;
     }
 }