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23 lines
562 B
Python
23 lines
562 B
Python
from __future__ import generators
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from myhdl import Signal, intbv, posedge, negedge
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ACTIVE_LOW, INACTIVE_HIGH = 0, 1
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def inc(count, enable, clock, reset, n):
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""" Incrementer with enable.
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count -- output
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enable -- control input, increment when 1
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clock -- clock input
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reset -- asynchronous reset input
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n -- counter max value
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"""
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while 1:
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yield posedge(clock), negedge(reset)
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if reset == ACTIVE_LOW:
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count.next = 0
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else:
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if enable:
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count.next = (count + 1) % n
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