On Sun, 17 Dec 2006, Anders Wallin wrote: > Date: Sun, 17 Dec 2006 11:01:44 +0200 > From: Anders Wallin <[EMAIL PROTECTED]> > Reply-To: "Enhanced Machine Controller (EMC)" > <[email protected]> > To: "Enhanced Machine Controller (EMC)" <[email protected]> > Subject: Re: [Emc-users] Mesa m5i20 PWM frequency ? > >> >> OK so for the 5I20 I can change the PWM so it will go up to ~66 KHz instead >> of >> ~33 KHz. > > Peter, would changing to a max 66 kHz PWM frequency on the 5I20 simply > require a new fpga configuration to be compiled and downloaded to the > 5I20, or does it require a hardware change ?
Just a new configuration. The base frequency of the PWM is currently 33 MHz and the PWM resolution is 10 bits so the current max PWM rate is 33 MHz/1024. I can double the 33 MHz to 66 MHz inside the FPGA to get 66 MHz/1024 PWM rate easily (or use the 50 MHz clock and double it for 100 MHz/1024 max PWM rate. > > I am asking because I am in the process of buying some servo amps from > Jon and as noted in this thread they are optimized for 50 kHz. > > Anders Wallin > > > ------------------------------------------------------------------------- > Take Surveys. Earn Cash. Influence the Future of IT > Join SourceForge.net's Techsay panel and you'll get the chance to share your > opinions on IT & business topics through brief surveys - and earn cash > http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users > Peter Wallace Mesa Electronics (\__/) (='.'=) This is Bunny. Copy and paste bunny into your (")_(") signature to help him gain world domination. ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys - and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
