Re: phase stepping

[Ray <rehenry-at-up.net>]

Hi John (comments in your post)

On Mon, 10 Sep 2001, John wrote:
<s> I grabbed the BDI-209 distribution to get newer code.
> That did not install on my poor old P-pro 150, so I manually 
> installed rpm's for utils, kernel, rtlinux, rcslib and emc, ending up
> with emc-2.07-rtl3.0.i586.rpm onto redhat 6.2

Wow!  That's quite a hack.  I'm impressed.

> Period works at 50us (not 16us)

That sounds right for the processor that you have.  You might consider a
newer release and steppermod.  If so grab the source files from the dropbox
*81.src.aaa aab aac or something like that  But you will have to compile
them.

<s> now - only issue seems to be poor output waveforms, which are not
> square. this severely limits the max speed. 

I wonder if this is a problem of pull up or pull down resistors?  Is it
common to all of the signals?
 
> A distribution ini file with more comments and unit explainations
> might help.

<hint>I keep trying to find someone who will write up a complete page for
the handbook. </hint>

>Can the items only used for simulation be moved into a
> different file?   

You can just delete them.  See mini.ini in the bdi for an example of a
stripped down ini file. 

Keep going.  You're doing great.

Ray