litex/mibuild/crg.py

from migen.fhdl.std import *

class SimpleCRG(Module):
	def __init__(self, platform, clk_name, rst_name, rst_invert=False):
			reset_less = rst_name is None
			self.clock_domains.cd_sys = ClockDomain(reset_less=reset_less)
			self._clk = platform.request(clk_name)
			self.comb += self.cd_sys.clk.eq(self._clk)

			if not reset_less:
				if rst_invert:
					self.comb += self.cd_sys.rst.eq(~platform.request(rst_name))
				else:
					self.comb += self.cd_sys.rst.eq(platform.request(rst_name))