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boards/targets/versaecp55g: use new iowrapper support, basic led blink and ios working :)

This commit is contained in:
Florent Kermarrec 2018-10-29 11:46:03 +01:00
parent 27ec2a59e2
commit 4eb314a252
1 changed files with 3 additions and 31 deletions
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34
litex/boards/targets/versaecp55g_prjtrellis.py
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@ -11,44 +11,16 @@ class BaseSoC(Module):
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")