--upd

Boot/Core/Src/main.c

@@ -89,6 +89,7 @@ int main(void)
   MX_GPIO_Init();
   MX_USART2_UART_Init();
   MX_CRC_Init();
+  MX_USART1_UART_Init();
   /* USER CODE BEGIN 2 */
   /* Initialize the bootloader application. */
   AppInit();