Hi everyone,
I have a question about signed numbers in CAN, but I try to handle sign
of a signal's value whenever it is a signed value.
I would like to have something that works in any cases obviously but for
what I found, signed value in CAN bus isn't standardized.
You can have:
* signal on N-1 bits, with the subtracted bit representing the sign
* either with 1's complement
* or 2's complement.
You could have some bitfield not encoded within classics bytes but in 3
or 13 bits by example, so it could complicate the computing of the
signed value depending on the chosen method.
Best regards.
--
Romain Forlot - Embedded Engineer - IoT.bzh
romain.forlot@xxxxxxx - www.iot.bzh - +33675142438
