I am thinking, you have down loaded the ZIP file, which contains the
much reduced Lini-stepper source code, compiled hex file and eagle board
file :
The PWM loop is the output to the Fet's, the Phasing of which is
set in the Mode-3600, Mode-1200, Mode-400 and Mode-200 loops:
switching the Fet's off or on
The other half of the code , which is removed , is for setting the
bias to the transistors to allow different current levels in different modes:
As seeing is believing ,grab a breadboard and do a quick mock up of the circuit
Kym |