mirror of
https://github.com/myhdl/myhdl.git
synced 2024-12-14 07:44:38 +08:00
24 lines
517 B
Python
24 lines
517 B
Python
from myhdl import *
|
|
|
|
ACTIVE_LOW, INACTIVE_HIGH = 0, 1
|
|
|
|
def inc(count, enable, clock, reset, n):
|
|
""" Incrementer with enable.
|
|
|
|
count -- output
|
|
enable -- control input, increment when 1
|
|
clock -- clock input
|
|
reset -- asynchronous reset input
|
|
n -- counter max value
|
|
"""
|
|
|
|
@always(clock.posedge, reset.negedge)
|
|
def logic():
|
|
if reset == ACTIVE_LOW:
|
|
count.next = 0
|
|
else:
|
|
if enable:
|
|
count.next = (count + 1) % n
|
|
|
|
return logic
|