4-1%25) Two 4-winding stepper motors are controlled through the data port of a SPP (Standard Parallel Port) as illustrated in the diagram below. Both of the stepper motors have stepping angle of 6 and the SPP is at address 0378H. Motor 1 STR1 Motor 2 STR2 Write a subroutine to rotate the first stepper motor (STR1) at 1 rpm (revolution per minute) The second motor (STR2) rotates in the same direction as STR1 and the operation of STR2 depends on the STR1. STR2 makes a new step when the STR1 completes a full cycle (1 revolution) 4-1%25) Two 4-winding stepper motors are controlled through the data port of a SPP (Standard Parallel Port) as illustrated in the diagram below. Both of the stepper motors have stepping angle of 6 and the SPP is at address 0378H. Motor 1 STR1 Motor 2 STR2 Write a subroutine to rotate the first stepper motor (STR1) at 1 rpm (revolution per minute) The second motor (STR2) rotates in the same direction as STR1 and the operation of STR2 depends on the STR1. STR2 makes a new step when the STR1 completes a full cycle (1 revolution)