>I may have. What is your routine returning as the BCC value? Do you have any more data samples I can try?


I don't know how hardware calculate this BCC, but I thought it was a simple XOR for all bytes, so I do it with

. . .
for i = 1 to 11
result = bitxor ( result, MyByte(i) )
endfor
. . .

and the result isn't the same as hardware did.


I have some more data samples if you can try them:


2,87,110,107,32,48,49,49,48,48,3 --> BCC: 23 (Why isn't it 67 ?)
2,87,110,107,32,48,49,50,48,48,3 --> BCC: 24 (Why isn't it 64 ?)
2,87,110,107,32,48,49,51,48,48,3 --> BCC: 29 (Why isn't it 65 ?)
2,87,110,107,32,48,50,49,48,48,3 --> BCC: 146 (Why isn't it 64 ?)
2,87,110,107,32,48,50,50,48,48,3 --> BCC: 157 (Why isn't it 67 ?)


Thank's, Zlatko.