MAX32630: clear uart interrupt flag prior to handler call.

pan- · pan- · commit 5157c7b622da · 2017-07-03T16:39:29.000+01:00
diff --git a/targets/TARGET_Maxim/TARGET_MAX32630/serial_api.c b/targets/TARGET_Maxim/TARGET_MAX32630/serial_api.c
@@ -180,6 +180,10 @@ void serial_format(serial_t *obj, int data_bits, SerialParity parity, int stop_b
 //******************************************************************************
 void uart_handler(serial_t *obj)
 {
+    // clear interrupts
+    volatile uint32_t flags = obj->uart->intfl;
+    obj->uart->intfl = flags;
+
     if (obj && obj->id) {
         irq_handler(obj->id, RxIrq);
     }

Original file line number	Diff line number	Diff line change
`@@ -180,6 +180,10 @@ void serial_format(serial_t *obj, int data_bits, SerialParity parity, int stop_b`
`180`	`180`	`//******************************************************************************`
`181`	`181`	`void uart_handler(serial_t *obj)`
`182`	`182`	`{`
	`183`	`+ // clear interrupts`
	`184`	`+ volatile uint32_t flags = obj->uart->intfl;`
	`185`	`+ obj->uart->intfl = flags;`
	`186`	`+`
`183`	`187`	`if (obj && obj->id) {`
`184`	`188`	`irq_handler(obj->id, RxIrq);`
`185`	`189`	`}`