Dear List, i want to setup a nice hil-control system using rtai simulink/matlab/rtw to control induction machines. The frequency converter driving the machine takes at least 3 PWM-signals as an input. I thought about interfacing a microcontroler via the parallel-port and gpio pins to make use of the pwm units and ad-converters of the mc. I've found a dos based example for an atmel at90pwm3b microcontroller, which should be portable to rtai, using the comedi-parport stuff. Unfortunately this is a rather slow solution (something like 60 kbyte/s are mentioned in the at90pwm3b controller-example).
After digging a little bit more, the atmel avr32uca - familly popped up, which offers an ethernet-interface. Now I'm wondering, if there is a way to communicate with the pwm-units of the microcontroller via the ethernet-interface and rtnet in hard - realtime? I need to transfer approx 200kb per second to the pwm-units and from the ad-converters. Would this system be easily expandable to controll a second frequency converter ? I would be happy to hear about your opion and listen to your suggestions about the best way to solve this problems. Thanks in advance, Nico ------------------------------------------------------------------------- Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://sourceforge.net/services/buy/index.php _______________________________________________ RTnet-users mailing list RTnet-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/rtnet-users
