[Tinyos-devel] again about the baudrate issue for telos

[Omprakash Gnawali]

On Mon, Feb 16, 2009 at 2:54 PM, Stephen Dawson-Haggerty
<stevedh at eecs.berkeley.edu> wrote:
> On Mon, Feb 16, 2009 at 2:50 PM, Razvan Musaloiu-E. <razvanm at cs.jhu.edu>
> wrote:
>> Hi!
>>
>> On Mon, 16 Feb 2009, Stephen Dawson-Haggerty wrote:
>>
>>> I don't know what other tests people have run, but at least in my
>>> experience
>>> (all on linux) 115200 seems to have more dropped packets and be less
>>> stable
>>> when you're sending quickly.
>>
>> In which direction did you see this? In my case I see dropped packets when
>> I send from PC to the mote. The other direction (from the mote to PC) seems
>> fine. Which is probably why many people don't have big issues with 115200.
>> :P
>
> I think I agree with you-- packets make it to the pc just fine but they get
> dropped on the way to the mote.
>
> This seems consistent with what Eric said about the receive path being a
> little too long on the mote-- presumably the pc doesn't have this problem.
>

For Tenet (which has mote-pc and pc-mote packets), we used 115200 for
a while and switched to 57600 for higher reliability.

- om_p