def __init__(self, platform):
self.clock_domains.cd_sys = ClockDomain()
- sys_clk_pads = platform.request("clk100")
- btn_pads = platform.request("user_dip_btn")
- led0_pads = platform.request("user_led", 0)
- led1_pads = platform.request("user_led", 1)
-
- # FIXME: no constraint file for now with prjtrellis
- platform.lookup_request("clk100").attr.add(("LOC", "P3"))
- platform.lookup_request("clk100").attr.add(("IO_TYPE", "LVDS"))
- platform.lookup_request("user_dip_btn").attr.add(("LOC", "H2"))
- platform.lookup_request("user_dip_btn").attr.add(("IO_TYPE", "LVCMOS15"))
- platform.lookup_request("user_led", 0).attr.add(("LOC", "E16"))
- platform.lookup_request("user_led", 0).attr.add(("IO_TYPE", "LVCMOS25"))
- platform.lookup_request("user_led", 1).attr.add(("LOC", "D17"))
- platform.lookup_request("user_led", 1).attr.add(("IO_TYPE", "LVCMOS25"))
-
- # FIXME: add TRELLIS_IO instance on all inputs/outputs
- sys_clk_pads_i = Signal()
- btn_pads_i = Signal()
- led0_pads_i = Signal()
- led1_pads_i = Signal()
- self.specials += [
- Instance("TRELLIS_IO", p_DIR="INPUT", io_B=sys_clk_pads, o_O=sys_clk_pads_i),
- Instance("TRELLIS_IO", p_DIR="INPUT", io_B=btn_pads, o_O=btn_pads_i),
- Instance("TRELLIS_IO", p_DIR="OUTPUT", io_B=led0_pads, i_I=led0_pads_i),
- Instance("TRELLIS_IO", p_DIR="OUTPUT", io_B=led1_pads, i_I=led1_pads_i),
- ]
-
# crg
- self.comb += self.cd_sys.clk.eq(sys_clk_pads_i)
+ self.comb += self.cd_sys.clk.eq(platform.request("clk100"))
# led0 (blink)
counter = Signal(32)
self.sync += counter.eq(counter + 1)
- self.comb += led0_pads_i.eq(counter[26])
+ self.comb += platform.request("user_led", 0).eq(counter[26])
# led1 (btn)
- self.comb += led1_pads_i.eq(btn_pads_i)
-
+ self.comb += platform.request("user_led", 1).eq(platform.request("user_dip_btn", 0))
def main():
platform = versaecp55g.Platform(toolchain="prjtrellis")