Configure NRF52 uart on interrupt attach

c1728p9 · c1728p9 · commit 21dd8e40ab4f · 2018-11-16T17:35:54.000-06:00
When attaching an irq to serial call nordic_nrf5_serial_configure.
This ensures the serial is ready to receive data at the correct
baudrate.
diff --git a/targets/TARGET_NORDIC/TARGET_NRF5x/TARGET_NRF52/serial_api.c b/targets/TARGET_NORDIC/TARGET_NRF5x/TARGET_NRF52/serial_api.c
@@ -1437,6 +1437,7 @@ void serial_irq_set(serial_t *obj, SerialIrq irq, uint32_t enable)
     if (enable) {
 
         uart_object->mask |= type;
+        nordic_nrf5_serial_configure(obj);
 
     } else {
 
