Just want to say thanks for helping me on this.
Sorry but I dont have access to another pwr supply. Here is a question. Is the Reset and Sleep supposed to be tied together and grounded or set high? Should the be separated? Right now I have them tied together and left floating. I have noticed that if i touch them to 5v my amps jump back to my preset level of .7 volts. Very interesting. As per page 7 of the 4988 data sheet, All STEP inputs are ignored until
the ¯R¯ ¯ E¯ S¯ E¯ Tinput is set to high. Is this my issue? I was also wondering if I was getting into the Shorted-Load and Short-to-Ground Protection (page 9 data sheet) I'll experiment and post.