This layer implements the buffered CAN message handling for one or more busses. All access to the CAN controller shall be done with this layer.

Figure - Bus Layer Architecture

The CAN bus layer is configurable during compile time to minimize memory footprint and optimize performance. The following list shows the configuration parameters and their functionality:

Configuration	Meaning	Range	Default
`CANBUS_EN`	This parameter enables (1) or disables (0) the CAN bus management, e.g. the usage of μC/CAN.	0 / 1	1
`CANBUS_N`	This parameter defines the maximal number of managed CAN busses.	1 ... 255	1
`CANBUS_ARG_CHK_EN`	This parameter enables (1) or disables (0) the argument checking of the CAN bus API functions.	0 / 1	1
`CANBUS_TX_HANDLER_EN`	This parameter enables (1) or disables (0) the usage of function `CanBusTxHandler()`.	0 / 1	1
`CANBUS_RX_HANDLER_EN`	This parameter enables (1) or disables (0) the usage of function `CanBusRxHandler()`.	0 / 1	1
`CANBUS_NS_HANDLER_EN`	This parameter enables (1) or disables (0) the usage of function `CanBusNsHandler()`.	0 / 1	1
`CANBUS_STAT_EN`	This parameter enables (1) or disables (0) the statistic information collection.	0 / 1	0
`CANBUS_RX_QSIZE`	The size of the receive queues in CAN frames.	1 ... 65535	2
`CANBUS_TX_QSIZE`	The size of the transmit queues in CAN frames.	1 ... 65535	2
`CANBUS_HOOK_NS_EN`	Enable node status handler hook function.	0 / 1	0
`CANBUS_HOOK_RX_EN`	Enable receive handler hook function.	0 / 1	0

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