detect bus reset

hw/bsp/samg55xplained/samg55xplained.c

@@ -45,12 +45,8 @@
 #define UART_TX_PIN           GPIO(GPIO_PORTA, 28)
 #define UART_RX_PIN           GPIO(GPIO_PORTA, 27)
 
-//struct usart_async_descriptor _edbg_com;
-//static uint8_t _edbg_com_buf[64];
-
 struct _usart_sync_device _edbg_com;
 
-
 //------------- IMPLEMENTATION -------------//
 void board_init(void)
 {
@@ -81,7 +77,6 @@ void board_init(void)
 	_usart_sync_set_mode(&_edbg_com, USART_MODE_ASYNCHRONOUS);
 	_usart_sync_enable(&_edbg_com);
 
-
 #if CFG_TUSB_OS  == OPT_OS_NONE
   // 1ms tick timer (samd SystemCoreClock may not correct)
   SysTick_Config(CONF_CPU_FREQUENCY / 1000);