hi,i want to know if it is possible to autobaud the can bus in accordance with
the variable can cable length?
in my application,the total cable length
is varied from several tens of meters to about serveral kilometers,so i wander if
it is possible let the embedded software
automaticaly calculate the allowable maximal bit rate of the can bus at the stage of can system initialization,and set the corresponding timing parameters?

i am using sja1000,if it is not possible to implement this figure in sja1000,whereas other can controller can do,please tell me.

i want some code example (8052 core cpu)show me how to implement it.

thanks in advance.