[time-nuts] SR620, using the RS232

Bob Camp lists at rtty.us
Sun Dec 30 19:22:32 UTC 2012


It sounds like a bit like buffer overflow in the SR620 that's nuking something else. You may be asking it to do slightly more than it's capable of….


On Dec 30, 2012, at 1:42 PM, "Ed Mersich" <wa6rzw at comcast.net> wrote:

> Hello Time-nuts, Happy New Year,
> I am having a problem with my SR620.  I am using the RS232 interface to
> configure and read the results.  I am using my own code, and I am
> continually make revisions, updates, (Spelled: E-R-R-O-R) to my code.  Every
> couple days I manage to scramble the brains of the SR620.  When this occurs
> the output doesn't make much sense, so I know I did it again. Darn, I hate
> when that happens!  The symptom is that the command input doesn't return an
> answer as expected.  I must enter between 5,6 to 35 or more <cr>, <lf>,
> characters to get the expected result.  Once in this condition it's always
> the same amount of <returns>.  I have tried various of the documented
> commands like *RST, and several others.  Nothing works except the dreaded
> [POWER OFF] button.  Is there a secret sequence or magic three finger button
> combination?  I have not tried any of the serious calibration, or diagnostic
> commands.  My firmware is 1.48.
> Thanks, Ed  WA6RZW
> sent from martel
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