ec_mbx Struct Reference

Data Fields
osal_uint32_t	handler_flags
	Flags signalling handler recv of send action.
osal_mutex_t	sync_mutex
	Sync mutex for handler flags.
osal_binary_semaphore_t	sync_sem
	Mailbox sync semaphore.
int	handler_running
	Mailbox handler thread running flag.
ec_t *	pec
	Pointer to ethercat master structure.
int	slave
	Number of EtherCAT slave.
osal_task_t	handler_tid
	Mailbox handler thread handle.
osal_mutex_t	lock
	mailbox lock
int	seq_counter
	mailbox sequence counter
pool_t	message_pool_send_queued
	Pool with mailbox buffers ready to be sent.
osal_uint32_t	sm_state_bitno
osal_uint8_t *	sm_state
	Sync manager state of read mailbox.
osal_uint8_t	mbx_state
	State if not mapped.

Field Documentation

lock

osal_mutex_t ec_mbx::lock

mailbox lock

Only one simoultaneous access to the EtherCAT slave mailbox is possible at the moment.

pec

ec_t* ec_mbx::pec

Pointer to ethercat master structure.

Used by handler thread wrapper to call mailbox handler function.

slave

int ec_mbx::slave

Number of EtherCAT slave.

Used by handler thread wrapper to call mailbox handler function.

sm_state

osal_uint8_t* ec_mbx::sm_state

Sync manager state of read mailbox.

The field is used to receive the mailbox sync manager state. This is useful to determine if the mailbox is full or empty without the need to poll the state manually.

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The documentation for this struct was generated from the following file:

• include/libethercat/mbx.h