Larry W4CSC wrote:
Oh, boy! Another proprietary, improperly documented, non-standard data
protocol designed to keep the marine electronics assholes swimming in money
for another decade.......

CAN is a properly documented, standard, non-proprietary protocol. It is
well suited for control and data is harsh environments. Much better than
what you metion.

The problem is more that the way the standard base layers are used by
applications is proprietay. But that has nothing to do with CAN and
everything with the companies using it.

Markus