Andy would you care to enlighten me a little on your sign lookup table? I have an xmega laying around I have been playing with. I have it decoding and picking up the hall positions. But I'm not grasping the sign lookup table. I have read a half a dozen articles on it. In sure I will figure out, I always do but I figured maybe you could help. Also I thought about porting your bldc component, removing the real time and Hal includes and trying to make it work. But honestly I don't need all the wonderful bells and whistles you have included in yours.
Thanks Gabe On Apr 26, 2012 8:35 AM, "andy pugh" <[email protected]> wrote: > On 26 April 2012 13:01, Gabriel Willen <[email protected]> wrote: > > > Is it supposed to generated sinus pwm signals on > > the outputs or is this a middle man for another price of hardware that > > would generate the pwm. > > No, bldc doesn't generate PWM, it generates amplitudes for a PWM > generator based on measured rotor position. > > It might be possible, dependent on the IC, to use a single PWMgen to > control the current, and to use the 6 bits to control the gates. > (sending PWM to a master-enable pin, for example) > > The mesa three-phase-PWM generator generates 3 pwm phases on 6 pins in > exact phase and with a deadband to prevent shoot-through. > > I have considered adding a 3pwmgen thread to bldc, but I think that > the pwm frequency available in software would be rather too low for > bldc use. > > -- > atp > The idea that there is no such thing as objective truth is, quite simply, > wrong. > > > ------------------------------------------------------------------------------ > Live Security Virtual Conference > Exclusive live event will cover all the ways today's security and > threat landscape has changed and how IT managers can respond. Discussions > will include endpoint security, mobile security and the latest in malware > threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users > ------------------------------------------------------------------------------ Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
