domain.h File Reference

EtherCAT domain structure. More...

Go to the source code of this file.

Data Structures
struct	ec_domain
	EtherCAT domain. More...

Functions
void	ec_domain_init (ec_domain_t *, ec_master_t *, unsigned int)
	Domain constructor.
void	ec_domain_clear (ec_domain_t *)
	Domain destructor.
void	ec_domain_add_fmmu_config (ec_domain_t *, ec_fmmu_config_t *)
	Adds an FMMU configuration to the domain.
int	ec_domain_finish (ec_domain_t *, uint32_t)
	Finishes a domain. More...
unsigned int	ec_domain_fmmu_count (const ec_domain_t *)
	Get the number of FMMU configurations of the domain.
const ec_fmmu_config_t *	ec_domain_find_fmmu (const ec_domain_t *, unsigned int)
	Get a certain FMMU configuration via its position in the list. More...

Detailed Description

EtherCAT domain structure.

Definition in file domain.h.

Function Documentation

ec_domain_finish()

int ec_domain_finish	(	ec_domain_t *	domain,
		uint32_t	base_address
	)

Finishes a domain.

This allocates the necessary datagrams and writes the correct logical addresses to every configured FMMU.

Todo:

Check for FMMUs that do not fit into any datagram.

Return values

0	Success
<0	Error code.

Parameters

domain	EtherCAT domain.
base_address	Logical base address.

Definition at line 226 of file domain.c.

ec_domain_find_fmmu()

const ec_fmmu_config_t* ec_domain_find_fmmu	(	const ec_domain_t *	domain,
		unsigned int	pos
	)

Get a certain FMMU configuration via its position in the list.

Returns

FMMU at position pos, or NULL.

Parameters

domain	EtherCAT domain.
pos	List position.

Definition at line 350 of file domain.c.