RE: Realy strange printf over UART loggin behaviour

Dusan Daniska — Mon, 12 Mar 2018 07:30:46 GMT

Thank you, you are right. Adding "\r\n" into the printf() in the loop solved the problem.

  while (true) {
    nrf_delay_ms(1000);
    printf(".\r\n");
  }

Now I got a pretty log and with a delay:

Turbo J — Sun, 11 Mar 2018 21:30:57 GMT

Newlib is buffering printf() and puts() calls. The buffers are flushed when either full or a newline (\n) is printed.