Moderator: twehr
naPS wrote:I'm fairly certain that the DSP takes the place of the Interface board.
bdring wrote:The laser interface/driver PCB has a lot of circuitry that won't be used with the DSP controller, but the stepper drivers can still be used. I am guessing, but I would try this.
The schematics show the controller hooked up to opto isolated drivers. Optos invert the signals so that is why everything looks a little backwards. I would suggest hooking the DSP ground pin to any pin 18-25 on the interface board. I would then hook PWM+ to a step pin (2,4 & 6) and the DIR+ to the corresponding Dir pin (3,5 & 7). It looks like the pin out table wrapped the last row that shows (18-25 as ground) to the next page.
bdring wrote:If anybody wants a simplied version of the interface/driver for use with a DSP controller, I can do that. It would probably knock half the cost out. I would just populate only the needed items.
NOTE - The standard BuildLog.net assembly instructions have you wire up the home limit switches with Noramlly Closed Ground, Open (disconnected) to activate. It is opposite of what the LightObject DSP is expecting. The DSP wants to see Normally Open, Closed to Ground to activate.
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