RTAI on Xilinx PPC board ML403

[Paolo Mantegazza]

wicky Zhang wrote:
> So, can we draw conclusions as the following:
> 1. LINUX-RTAI itself is an excellent RTOS, and COMEDI drivers have 
> perfect realtime performance if it is used appropriately.
>  
> 2. For the application of code autogenerated from Simulink, the most 
> significant reason why Dspace system works better is that: the calling 
> mode of comedi data read/write function in S-Function of simulink can't 
> reach its best performance, one should consider ASYN mode of comedi driver.
>  
> 3. When using xrtailab to connect the host and the target, it seems that 
> the connection will use too much resource and I think this makes system 
> performance worse. Dspace seems to resolve this problem better.
>  

That is possible!

> 4: So, if want to acquire a stable and better performance using linux 
> rtai+rtw+comedi in the application of code autogenerated, one should 
> notice the 2 and 3 above.
>  
> 5: BTW, is it possible to port xrtailab to Windows OS for another choice?
>  

Not xrtailab but there might be a way to it: 
http://artist.dsi.unifi.it/rtaixml/

Paolo.