[teqc] re:Rockwell binary
Lou Estey
lou at unavco.org
Mon May 29 19:29:14 MDT 2006
Jay,
> I took a another approach and wrote my own binary async program. The
> data logged comes back as expected by teqc. Seems the Eval Kit logger
> switches endian before it converts to ascii hex and writes to a file.
> I'll be able to capture a more reasonable amount of data tomorrow.
That will certainly work. But from your earlier email:
> The zodiac development station has an application which captures the
> zodiac stream into a text file. Part of a typical record is:
> "81FF03EB002D000079E9C2D10005008000D700.."
> which is a 1003 record type (03EB) - big-endian.
I'll bet that all you would have needed to do was byte swap each pair
of bytes starting with 0x81 0xff. My guess is that the Zodiac tool
is extracting 2-byte words and dumping them to you in big-endian order --
because that's how we as humans normally like to read numbers.
--lou
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