Hello World! nrf52dk_nrf52832
UART.. device 0x6ae0
UART.. Buffer: 0x2000048c
main..  waiting for data
UARTRX..  setting up for data into buffer 0x2000048c
uarte_nrfx_isr_async: Err:0 Rx: Rdy0 End1 Strt1 TO0  Tx:End1 Stop1
UART Callback 4 0x2000048c
UART RX Buf 0x2000048c released, no data
UART Callback 3    (nil)
UART RX Buf request-ignoring
0 UARTRX SEM..  sem take
uarte_nrfx_isr_async: Err:0 Rx: Rdy0 End0 Strt0 TO1  Tx:End1 Stop1
UART Callback 5    (nil)
UART RX Disabled
0 UARTRX SEM..  sem timeout -11
1 UARTRX SEM..  sem take