Struct esp32c3_hal::twai::filter::DualStandardFilter

pub struct DualStandardFilter { /* private fields */ }

A filter that matches against two standard 11-bit standard ids.

The first filter part can match a packet’s id, rtr bit, and the first byte of the payload. The second filter part can match a packet’s id and rtr bit.

Warning: This is not a perfect filter. Extended ids that match the bit layout of this filter will also be accepted.

Implementations

impl DualStandardFilter

pub const fn new( first_id: &[u8; 11], first_rtr: &[u8; 1], first_payload: &[u8; 8], second_id: &[u8; 11], second_rtr: &[u8; 1] ) -> DualStandardFilter

Create a filter that matches against two standard 11-bit standard ids.

The first filter part can match a packet’s id, rtr bit, and the first byte of the payload. The second filter part can match a packet’s id and rtr bit.

Examples

A filter that matches any standard id that ends with a 00 or a 11, with any rtr, and with any payload on the first filter.

const FILTER: twai::filter::DualStandardFilter = twai::filter::DualStandardFilter::new(
    b"xxxxxxxxx00",
    b"x",
    b"xxxxxxxx",
    b"xxxxxxxxx11",
    b"x",
);

pub fn new_from_code_mask( first_id_code: StandardId, first_id_mask: StandardId, first_rtr_code: bool, first_rtr_mask: bool, first_payload_code: u8, first_payload_mask: u8, second_id_code: StandardId, second_id_mask: StandardId, second_rtr_code: bool, second_rtr_mask: bool ) -> DualStandardFilter

The masks indicate which bits of the code the filter should match against. Set bits in the mask indicate that the corresponding bit in the code should match.

Trait Implementations

impl Filter for DualStandardFilter

const FILTER_TYPE: FilterType = FilterType::Dual

The type of the filter.

fn to_registers(&self) -> [u8; 8]

Get the register level representation of the filter.

fn filter_type(&self) -> FilterType