The hardware circuit diagram of a $74$LS$273$ is shown in Figure $6.$ A $32-$bit counter named SYST$\_$CVR is provided,

and its value can be directly read as a variable. The input frequency of the counter is $160MHz.$ Requirements include a

motor step precision of $1,$ acceleration of $1000,$ an upward step count of $100$ steps, and a downward step count of $120$

steps. The system needs to move from point $E$ to point $F,$ with the A phase powered for the $x-$axis motor, then the $B$

phase powered for $x-$axis positive movement. Similarly, for the $Y-$axis motor, the A phase is powered, followed by

the B phase for positive Y$-$axis movement. The CS is in the range of $180-183H.$ Write a program and draw a flowchart

for the program.