Hi all,
Manage to have the 3 x L297-8 drivers and "DIY 4 Axis PC interface" works without much problem except I burned one 7805 and one stepper motor(Vref too high). I am glad that all 3 axis worked with the 6 wire bipolar motor with my try and error method.
I am curious about certain thing.
1. Which output is for A+ A- B+ B-?
Out1= X3-1, X3-2
Out2= X2-1, X2-1
2. As for stepper motor, I have 6 wires stepper (unipolar and bipolar).
I managed to determine those 6 wires
example
1, 2, 3 group A, A2=common
4, 5, 6 group B, B5=common
How to determine the polarity A1 & A3 and B4 & B6 which wire is + and -?
TIA and cheers

KC