[En-Nut-Discussion] Loosing characters on debug interface (uart) using printf

Matthias Ringwald mringwal at inf.ethz.ch
Tue Jun 8 16:44:40 CEST 2004

On 08.06.2004, at 15:48, Ole Reinhardt wrote:

> Hi,
>> devDebug has limited functionality and devUart is 'old'.
>> so far devUsartAvr0 works fine with the bt module. no chars get lost..
> I tried out devUsartAvr0. It became just better, but there are still
> characters that get lost. I can't try hardware handshake because on my
> board it's not implemented, but I don't send so much characters at one
> time that I should concern about handshaking (in my opinion... I send
> not much more than a few textlines per second (at 115200bps)
> Any further ideas? Do I realy have to use handshaking?

handshake helps, when the receive ringbuffer overflows.

so if you're terminal is fast enough, this is not an issue.
otherwise, you should not loose any character. but still,
you can try 9600 baud..

and then start debugging.


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