TODO
author Florian Pose <fp@igh-essen.com>
Fri, 01 Feb 2008 20:58:57 +0000
changeset 783 0e16f97cf752
parent 778 7fc85507f49a
child 785 c7e600cd2812
permissions -rw-r--r--
Esthetic surgery for domain.
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EtherCAT master TODO
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$Id$
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Version 1.4.0:
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* Realtime interface changes:
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    - PDO configuration.
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    - SDO access.
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    - Replace process data pointers with offset.
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    - External memory for domains.
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    - Separate slave configuration from slave structure.
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* Mailbox handler
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* Read PDO mapping via CoE during bus scan.
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* SDO write access in sysfs.
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* Remove get_cycles() calls and references to cpu_khz to increase
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  portability.
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* Remove ecdb.h and let lsec output PDO information 'cut-and-pastable' for
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  applications.
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* Update documentation.
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Future issues:
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* Move slave handlers and state machines, etc. into a user space daemon.
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    - Step 1: Replace Sysfs interface with cdev and a user space program
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              to replace lsec.
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    - Step 2: Move kernel threads to user space daemon with a TCP interface
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              replacing the cdev.
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* Distributed clocks.
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* Redundancy with 2 network adapters.
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* Support slaves, that don't support the LRW datagram, only LRD/LWR.
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* PDO reading in IDLE mode.
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* Interface/buffers for asynchronous domain IO.
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Smaller issues:
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* Datagram debugging flag.
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* Clear sync managers in INIT.
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* Simplify FSMs with <state>_enter() functions.
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* Read out CRC counters.
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* Calculate expected working counter for domains.
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* Optimize alignment of process data.
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* Evaluate EEPROM contents after writing.
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* Configure slave ports to automatically open on link detection.
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* Calculate cycle time of operation state machine.
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* Locking for serveral slave variables for sysfs access.
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* Interrupt master state machines state scan for other jobs.
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* Master state machine, slave configuration: Do not check every slave on
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  a cycle.
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* Only execute one EoE handler per EoE cycle.
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Less important issues:
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* Implement all EtherCAT datagram types.
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* File access over EtherCAT (FoE).
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* Allow VLAN tagging.
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* Determine number of frames, the NIC can handle.
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