[ntp:questions] Re: Errors with NMEA refclock

Richard B. Gilbert rgilbert88 at comcast.net
Mon Jan 30 20:47:02 UTC 2006


Danny Mayer wrote:

>John Pettitt wrote:
>  
>
>>Danny Mayer wrote:
>>    
>>
>>>David J Taylor wrote:
>>>      
>>>
>>>>You are, of course, correct.  However, many devices /do/ allow higher 
>>>><snip>
>>>>
>>>>        
>>>>
>>>If the specific baud rate is defined in the spec then we shouldn't be
>>>providing knobs to turn to change it.
>>>
>>>Danny
>>>      
>>>
>>Why?  If NMEA devices allow the default to be changed it seems reasonable that the driver should
>>too.  I don't see a downside to allowing the data rate to be changed.
>>
>>John
>>
>>    
>>
>
>That's part of the question that's not clear to me. It's one thing if
>it's only designed for one baud rate, it's something else if the spec
>allows for other baud rates.
>
>
>  
>
The spec being cited is the NMEA spec.   IIUC the NMEA spec defines the 
protocol and establishes a standard baud rate for compatibility with 
other NMEA devices in; e.g. a marine application.   Here, the only other 
device involved is a computer that is presumably capable of anything 
from 300 baud to 115K baud.




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