Configuration

Name

Configuration -- CAN subsystem configuration

Description

The CAN subsystem has a number of configuration options:

cdl_interface CYGINT_IO_CAN_DRIVER

This CDL interface counts the number of CAN channels present in the system. Each driver must have an implements command for this interface for each channel it supports.

cdl_option CYGNUM_IO_CAN_MSG_COUNT_BASE

This CDL option defines the base number of message buffers allocated regardless of the number of channels available.

Default value: 10

cdl_option CYGNUM_IO_CAN_MSG_COUNT_DRIVER

This CDL option defines the number of message buffers allocated per CAN channel. The total number of message buffers allocated is CYGNUM_IO_CAN_MSG_COUNT_BASE plus CYGNUM_IO_CAN_MSG_COUNT_DRIVER times CYGINT_IO_CAN_DRIVER.

Default value: 10

cdl_option CYGNUM_IO_CAN_FILTER_MAX

This option defines the number of extended filters that can be stored. Drivers may use a requires statement to increase this number to reflect the availability of hardware filters. If hardware filtering is not supported, then this defines the number of software filters that can be stored.

Default value: 10

cdl_option CYGDBG_IO_CAN_DEBUG

This CDL option enables diagnostic output to be generated by the CAN subsystem. This is mostly useful in debugging problems with the CAN subsystem or in the development of device drivers.

Default value: 0

2017-02-09
Documentation license for this page: eCosPro License