Filter Functions

These functions handle filter functionality. More...

Functions
int	mcp2515_filter (pi_mcp2515_t *pi_mcp2515, const mcp2515_rxf_t filter, const uint32_t id, const bool extended_id)
	Set one of the filters specified by its register.
int	mcp2515_filter_mask (pi_mcp2515_t *pi_mcp2515, const mcp2515_rxm_t filter_mask, const uint32_t id_mask, const bool extended_id)
	Set the filter mask. The MCP2515 must be in config mode to use this (see mcp2515_reqop/mcp2515_reqop_get).
int	mcp2515_filter_enable (pi_mcp2515_t *pi_mcp2515, const bool enable)
int	mcp2515_filter_enable_rxb (pi_mcp2515_t *pi_mcp2515, const mcp2515_rxb_t index, const bool enable)

Detailed Description

These functions handle filter functionality.

Function Documentation

mcp2515_filter()

int mcp2515_filter	(	pi_mcp2515_t *	pi_mcp2515,
		const mcp2515_rxf_t	filter,
		const uint32_t	id,
		const bool	extended_id )

Set one of the filters specified by its register.

The MCP2515 must be in config mode to use this (see mcp2515_reqop and mcp2515_reqop_get).

Parameters

pi_mcp2515	the piMCP2515 handle.
filter	the filter to configure.
id
extended_id

Returns

zero if success, otherwise non-zero.

mcp2515_filter_mask()

int mcp2515_filter_mask	(	pi_mcp2515_t *	pi_mcp2515,
		const mcp2515_rxm_t	filter_mask,
		const uint32_t	id_mask,
		const bool	extended_id )

Set the filter mask. The MCP2515 must be in config mode to use this (see mcp2515_reqop/mcp2515_reqop_get).

Parameters

pi_mcp2515	the piMCP2515 handle.
filter_mask	the filter mask register to use.
id_mask	the ID mask to use.
extended_id	if the ID is extended.

Returns

zero if success, otherwise non-zero.