Hi,
sorry, I write in English, but I think I have figured the cheksum out and wanted to share
For example coding string - AA 08 33 BB 65 87 01 14 00 40 00 00 00 00 01 47 07 8F 00 02 1A 00
We know the checksum is "
33 BB". But how is it calculated?
First, we omit the checksum, so it becomes AA 08 65 87 01 14 00 40 00 00 00 00 01 47 07 8F 00 02 1A 00
Then divide it into two, like
AA 08 65 87 01 14 00 40 00 00 00 00 01 47 07 8F 00 02 1A 00
Then just
AA+ 65+01+00+00+00+01+07+00+1A = 132 (for some reason this is always +1 so 132 becomes 33)
and 08+87+14+40+00+00+47+8F+02+00 = 1BB
If we want to change axle ratio from 3.27 (01 47) to 2.65 (01 09), the complete string would be
AA 08 33 7D 65 87 01 14 00 40 00 00 00 00 01 09 07 8F 00 02 1A 00
Could someone test if I'm on the right track?