Every time the MSByte rolled over I noticed the raw rbuf value was different.
It seems the bits 9 & 10 end up half way down this raw rbuf.
Maybe some bit manipulation can get me out of trouble.
Thanks
Mike
sounds like standard com to me...
They are received in Byte format, the first byte is the MSB, the next one third, next second and then finally the LSB
If went receiving each byte you first SHL 8 of the accumulator then Add the new value to the ACC.
so you shift SHL 8 three times and the last one you just do a ADD.
basically you can ADD first to the ACC and then loop back to read another incoming until you reach a total of four and you stop SHL 8..
SO the unit is sending the MSB first down to the LSB..