[Emc-users] 6 stepgens on 5i25/7i76

2013-12-09 Thread Andrew
Hello! Is it possible to control 6 steppers with a single 7i76? There are 5 step/dir outputs, and I guess that IO pins are not meant for high step rate... The drives need TTL input, not differential. I could try to connect them directly to 5i25. Is there a firmware to support this (on a single

Re: [Emc-users] 6 stepgens on 5i25/7i76

2013-12-09 Thread andy pugh
On 9 December 2013 11:54, Andrew pkm...@gmail.com wrote: Is it possible to control 6 steppers with a single 7i76? There are 5 step/dir outputs, and I guess that IO pins are not meant for high step rate... The IO pins are serial addressed, in the servo thread. The drives need TTL input, not

Re: [Emc-users] 6 stepgens on 5i25/7i76

2013-12-09 Thread Andrew
2013/12/9 andy pugh bodge...@gmail.comhttps://mail.google.com/mail/u/0/?view=cmfs=1tf=1to=bodge...@gmail.com There are ttl-level stepgens on the second port (the header on the 5i25) with the 2x7i76 firmware. Really. Thanks! First I'll try to use 6 software stepgens via parport. If too slow