Modify the HDL description in Figure 7-60 or Figure 7-61 to add a rinse sequence after the clothes are washed. The new state machine sequence should be idle → wash_fill → wash_agitate → wash_spin → rinse_fill → rinse_agitate → rinse_spin → idle. Use hot water to wash, and cold water to rinse (add output bits to control two water valves). Simulate the modified HDL design.

Figure 7-60

Figure 7-61

Transcribed Image Text:

1234 in 500 5 6 7 8 9 10 11 12 23456 13 14 15 16 17 18 19 20 21 22 23 24 NNNNNNN 25 26 27 28 29 30 31 32 33 34 SUBDESIGN fig7 60 (clock, start, full, timesup, dry water_valve, ag_mode, sp_mode VARIABLE cycle: BEGIN cycle.clk clock; MACHINE WITH STATES (idle, fill, agitate, spin); CASE cycle IS WHEN idle ->IF start THEN cycle fill; ELSE cycle - idle; END IF; WHEN fill ->IF full ELSE END IF; WHEN agitate -> IF ELSE END IF; WHEN spin -> IF dry ELSE TABLE END; END IF; WHEN OTHERS -> cycle- idle; END CASE; cycle idle fill agitate spin END TABLE; : INPUT; :OUTPUT; THEN cycle - agitate; cycle - fill; -> GND, -> GND, timesup THEN cycle spin; cycle agitate; THEN cycle - idle; cycle - spin; -> water valve, -> GND, -> VCC, ag_mode, GND, GND, VCC, GND, sp_mode; GND; GND; GND; VCC;