We no longer use this event so don't need to reset it.

Author: Jonathan Pallant (42 Technology)

nrf-hal-common/src/uarte.rs

@@ -180,7 +180,6 @@ where
 
         // Reset the events.
         self.0.events_endtx.reset();
-        self.0.events_txstopped.reset();
 
         // Set up the DMA write.
         self.0.txd.ptr.write(|w|