Karl Reichert wrote: > Thanks for the helping answer :) > > The plan is not to write a generic lib, although this would be very fine. I'm > writing my diploma at university of applied sience Berlin from beginning of > may for three months. This work consists of much more than a RTnet > implementation. I also have to first evaluate the requirements of the whole > system, communication ... > > So, what I can say to the requirements is, that I need a realtime ethernet > communication, but with much less features RTnet is offering. I need for > example no backup masters, no protection against failing slaves ... I just > need a very simple, basic realtime ethernet, cause we are dealing with some > testing systems here and if sth like failing stations occure, we will just > stop whole tests, so no need for that. We are dealing with only few use cases > here, which are communication from master to slave(uni/multicast) with or > without answers, callbacks and communication between slaves. The whole > communication is totally async. > > But of course writing a generic lib could be an option for me afterwards, or > maybe for master thesis next summer. > > So why I am asking these questions is, because I'm at the moment thinking > about differnet possibilities how to solve this problem. One of those - and > at the moment my most prefered one, cause there is already a ready > implementation for the PC (master) - is RTnet, but what I'm trying to find > out is, how much work this would be, porting this (not completely, but basic > features we need) to tricore 1130. > > So, don't really know what to ask at the moment. Maybe you could give me some > hints/suggestions, if you consider RTnet to be right for this, if you see any > major problems ...
Sounds feasible. Did I already asked this: Do you have a working "bare-metal" Ethernet NIC driver for the TriCore? That would be the base to build all RTnet timing and protocol stuff around. And, finally, you could then add the application code on top of it. Try to find a clean separation (can already be a simple function call) between RTnet services and your control application on top. Makes it easier to cope with potentially changing requirements of the control application. Jan
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