def StopWatch(tens_led, ones_led, tenths_led, startstop, reset, clock):
""" 3 digit stopwatch with seconds and tenths of a second.
tens_led: 7 segment led for most significant digit of the seconds
ones_led: 7 segment led for least significant digit of the seconds
tenths_led: 7 segment led for tenths of a second
startstop: input that starts or stops the stopwatch on a posedge
reset: reset input
clock: 10Hz clock input
"""
tens, ones, tenths = [Signal(intbv(0)[4:]) for i in range(3)]
timecount_inst = TimeCount(tens, ones, tenths, startstop, reset, clock)
bcd2led_tens = bcd2led(tens_led, tens, clock)
bcd2led_ones = bcd2led(ones_led, ones, clock)
bcd2led_tenths = bcd2led(tenths_led, tenths, clock)
return timecount_inst, bcd2led_tens, bcd2led_ones, bcd2led_tenths
def StopWatch(tens_led, ones_led, tenths_led, startstop, reset, clock):
""" 3 digit stopwatch with seconds and tenths of a second.
tens_led: 7 segment led for most significant digit of the seconds
ones_led: 7 segment led for least significant digit of the seconds
tenths_led: 7 segment led for tenths of a second
startstop: input that starts or stops the stopwatch on a posedge
reset: reset input
clock: 10Hz clock input
"""
tens, ones, tenths = [Signal(intbv(0)[4:]) for i in range(3)]
timecount_inst = TimeCount(tens, ones, tenths, startstop, reset, clock)
bcd2led_tens = bcd2led(tens_led, tens, clock)
bcd2led_ones = bcd2led(ones_led, ones, clock)
bcd2led_tenths = bcd2led(tenths_led, tenths, clock)
return timecount_inst, bcd2led_tens, bcd2led_ones, bcd2led_tenths
def bench():
led = Signal(intbv(0)[7:])
bcd = Signal(intbv(0)[4:])
clock = Signal(bool(0))
dut = bcd2led(led, bcd, clock)
@always(delay(PERIOD // 2))
def clkgen():
clock.next = not clock
@instance
def check():
for i in range(100):
bcd.next = randrange(10)
yield clock.posedge
yield clock.negedge
expected = int(seven_segment.encoding[int(bcd)], 2)
assert led == expected
raise StopSimulation
return dut, clkgen, check
def bench():
led = Signal(intbv(0)[7:])
bcd = Signal(intbv(0)[4:])
clock = Signal(bool(0))
dut = bcd2led(led, bcd, clock)
@always(delay(PERIOD // 2))
def clkgen():
clock.next = not clock
@instance
def check():
for i in range(100):
bcd.next = randrange(10)
yield clock.posedge
yield clock.negedge
expected = int(seven_segment.encoding[int(bcd)], 2)
assert led == expected
raise StopSimulation
return dut, clkgen, check
