Help! DIY 4 amp L297/6203 driver

[Ross77]

For the PIC, you can use any of the output pins (pins 2, 3, 5, 6 and 7) for the VREF generation signals, but use one of the analogue pins (5, 6 and 7) with a trimmer (between VCC and GND) to set the delay.

Ok think I've got it sorted. I'm not sure if the trim pots are configured properly as it looks like they will interfer with each other :naughty:. Just reread Kwakers post and I think i should have used the pic to pull them high not low. :whistling:

I've also left the 3.9 res in as I presume it will limit the Vref to 3v mav as per the data sheet. If the pots are pulled high could this be achived with a common 3v supply?