[En-Nut-Discussion] Possible BUG in ARM usart driver or crt routines

[Ole Reinhardt]

Hi!

>    With the atmega128 the default buffer size seems fine, but I don't
> think I ever filled it completely.

With the default buffer size it seems to work quite well, but now I need
to send out data without any buffer.

Detailed problem:

I need to wait for at least 50ms after sending the buffer before sending
more data. If I have a large buffer I can not say how much data is still
in the buffer, so a nutsleep directly after fwrite() I don't know the
exactly when the last byte was send out (by interrupt driven UART).

Bye,

Ole

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