1

-------------------------------------------------------------------------------

     2

     3

EtherCAT master TODO

     4

     5

$Id$

     6

     7

-------------------------------------------------------------------------------

     8

     9

Version 1.4.0:

    10

    11

* Realtime interface changes:

    12

    - PDO configuration.

    13

    - SDO access.

    14

    - Replace process data pointers with offset.

    15

    - External memory for domains.

    17

* Mailbox handler

    18

* Read PDO mapping via CoE during bus scan.

    19

* SDO write access in sysfs.

    20

* Remove get_cycles() calls and references to cpu_khz to increase

    21

  portability.

    22

* Remove ecdb.h and let lsec output PDO information 'cut-and-pastable' for

    23

  applications.

    24

* Update documentation.

    25

    26

Future issues:

    27

    28

* Move slave handlers and state machines, etc. into a user space daemon.

    29

    - Step 1: Replace Sysfs interface with cdev and a user space program

    30

              to replace lsec.

    31

    - Step 2: Move kernel threads to user space daemon with a TCP interface

    32

              replacing the cdev.

    33

* Distributed clocks.

    34

* Redundancy with 2 network adapters.

    35

* Support slaves, that don't support the LRW datagram, only LRD/LWR.

    36

* PDO reading in IDLE mode.

    37

* Interface/buffers for asynchronous domain IO.

    38

    39

Smaller issues:

    40

    41

* Datagram debugging flag.

    42

* Clear sync managers in INIT.

    43

* Simplify FSMs with <state>_enter() functions.

    44

* Read out CRC counters.

    45

* Calculate expected working counter for domains.

    46

* Optimize alignment of process data.

    47

* Evaluate EEPROM contents after writing.

    48

* Configure slave ports to automatically open on link detection.

    49

* Calculate cycle time of operation state machine.

    50

* Locking for serveral slave variables for sysfs access.

    51

* Interrupt master state machines state scan for other jobs.

    52

* Master state machine, slave configuration: Do not check every slave on

    53

  a cycle.

    54

* Only execute one EoE handler per EoE cycle.

    55

    56

Less important issues:

    57

    58

* Implement all EtherCAT datagram types.

    59

* File access over EtherCAT (FoE).

    60

* Allow VLAN tagging.

    61

* Determine number of frames, the NIC can handle.

    62

    63

-------------------------------------------------------------------------------