[plug] OT: Data check digits

[Paul Arch]

>I realise that these are check digits of some sort, I'm just not sure where
to start in going about figuring out how they are calculated.
> Below is a sample. If more samples are required, I can get some more.
>

You probably need to give some more information - maybe a name of the
software package ?  I havent used the serial snooper program you are
referring to before, but to me I get the following from the above :

0>1 refers to one end initiating session (Maybe PDT)
1>0 refers to other end sending something back (Maybe Software)

Assuming this, 0>1: \x06 seems to be an ack. of sorts
0>1: \x05
    (start download)
1>0: \x06
    (ack)
0>1: \x01BHTQTYS.DAT 00003051304080808\x035
    (data)
1>0: \x06
    (ack)
0>1: \x020000193117420003800005                        \x03\x07
    (data)
1>0: \x06
    (ack)
0>1: \x0200002742709112010 0003                        \x03\x1e
    (data)
1>0: \x06
    (ack)
0>1: \x0200003637407193402 0015                        \x03\x18
    (data)
1>0: \x06
    (ack)
0>1: \x04
    (End of Data)
1>0: \x06
    (ack).

  But then again, I could be WAY off.

cheers

Paul