Thanks for your offer for help. After checking the altimeter myself, it
turns out the CRC error is from a previous flight or test, that I'm not
interested in (#1). Another flight from last year can be read out
without problems (#2) but the flight I'm looking for (#3), doesn't seem
to be recorded at all.
My suspicion is that somewhere around apogee, power got lost. The
igniter for the upper stage motor was fired, but not the other ones,
planned to be fired a few seconds after apogee. Another altimeter was
planned to fire before the EasyMega at apogee, and apparently did so,
but rebooted afterwards.
Is no flight being recorded because of an inflight power loss consistent
with what you would expect in this case, or should there be visible
traces of a corrupted flight data set?
Reinhard
On 14.05.2019 at 03:28 Keith Packard wrote:
Bdale Garbee <[email protected]> writes:
Reinhard Rath <[email protected]> writes:
Is there a straightforward way to recover at least some data if a
readout results in a CRC error?
Not easily, but Keith has been known to extract useful information from
a raw dump of the flash contents... CC'ing him for an explicit reply
when he has a moment.
If you send me the .eeprom file, I should be able to make some sense of
it. Current AltosUI bits should extract every record of value though;
it's supposed to skip records with CRC errors and keep going.
_______________________________________________
altusmetrum mailing list
[email protected]
http://lists.gag.com/mailman/listinfo/altusmetrum
