From: "Mel Bartels" 
To: "ATM" 
Reply-To: "Mel Bartels" 


>>>
 I have the motors making sounds during ramping up using the hand pad but
they do not move.
<<<

In my system, you can easily cause the motors to move too rapidly so that
they stall out.  Is the ramping sound fast rising to a very high pitch? 
You might try increasing the values in config.dat per these instructions

MaxDelay, MinDelay, HsDelayX: these set the slowest and fastest slew
speeds: when using IRQ 8 timing of halfsteps, ramp speed starts at MaxDelay
and achieves highest speed at MinDelay; with interrupt 8 method of timing
the halfsteps, speed can be converted to halfsteps per second by dividing
MaxDelay and MinDelay into 1,000,000, so that a MaxDelay value of 1000
means 1000 halfsteps per second, and a MinDelay value of 200 means 5000
halfsteps per second.
when using delay loop timing of halfsteps with interrupts disabled, ramp
speed starts at (MaxDelay - MinDelay)* HsDelayX and achieves highest speed
of MinDelay * HsDelayX, where HsDelayX is used as a multiplier to keep the
MaxDelay and MinDelay values reasonably sized on fast CPUs.

You might try the scope-drive list at yahoogroups.com for specific
questions regarding my system.  There are over 1000 users of the list.

Mel Bartels

--- BBBS/NT v4.00 MP