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

[Harald Kipp]

Ole Reinhardt wrote:

> 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).

Polling the status for each 50ms may help. I've prepared a wiki page to
explain some advanced UART functions:

http://www.ethernut.de/nutwiki/Advanced_UART_Functions


Harald