Hi, Again. First, Duh! The 1Volt O'scope readings are my fault. The variable gain on the scope was set. Now the traces show 3V logic for everything. I've moved the pins around in Mach and the stepped direction signal is always there. The wierd thing is that the steps lag the dir pulses sometimes and sometimes not...
2 Questions that come to my mind are: 1) Why is the Direction signal a pulse? 2) Why is the timing of the pulses changing?
I'll post a picture of the driver test, showing tha it is acceptable... I think.
Dan. I'll hook up the Breakout board and try to hook up the scope to its outputs. However, I didn't see any change recently going from direct connection from Mach to the Geckos vs. Mach, BOB, Geckos. It is worth a try, though. I suspect something in the computer is the problem. But what? Only Windows XP and Mach 3 are on it.