Civil Engineering Reference
In-Depth Information
Chapter 3
Data Link Layer Implementation
Wolfhard Lawrenz, Florian Hartwich, Ursula Kelling, Vamsi Krishna,
Roland Lieder and Peter Riekert
3.1
M_CAN—Modular CAN Controller
The modular controller area network (M_CAN) module was developed to expand
Bosch's well-known family of CAN modules (e.g. the C_CAN module, which is
found in many microcontrollers) and support standardized (Automotive Open Sys-
tem Architecture, AUTOSAR) software drivers in particular, as well as applications
with multiple CAN channels. The M_CAN module's internal partitioning in CAN
core, Tx Handler, and Rx Handler provides flexibility for easy adaptations to future
requirements. CAN messages are stored in a separate memory, the
Message RAM
,
