diff options
Diffstat (limited to 'amaranth_boards/test/blinky.py')
| -rw-r--r-- | amaranth_boards/test/blinky.py | 27 |
1 files changed, 15 insertions, 12 deletions
diff --git a/amaranth_boards/test/blinky.py b/amaranth_boards/test/blinky.py index 9999246..60ca799 100644 --- a/amaranth_boards/test/blinky.py +++ b/amaranth_boards/test/blinky.py @@ -2,6 +2,7 @@ import itertools from amaranth import * from amaranth.build import ResourceError +from amaranth.lib import io __all__ = ["Blinky"] @@ -15,32 +16,34 @@ class Blinky(Elaboratable): resources = [] for number in itertools.count(): try: - resources.append(platform.request(name, number)) + resources.append(platform.request(name, number, dir="-")) except ResourceError: break return resources rgb_leds = [res for res in get_all_resources("rgb_led")] - leds = [res.o for res in get_all_resources("led")] - leds.extend([led.r.o for led in rgb_leds]) - leds.extend([led.g.o for led in rgb_leds]) - leds.extend([led.b.o for led in rgb_leds]) - buttons = [res.i for res in get_all_resources("button")] - switches = [res.i for res in get_all_resources("switch")] + leds = [io.Buffer("o", res) for res in get_all_resources("led")] + leds.extend([io.Buffer("o", led.r) for led in rgb_leds]) + leds.extend([io.Buffer("o", led.g) for led in rgb_leds]) + leds.extend([io.Buffer("o", led.b) for led in rgb_leds]) + buttons = [io.Buffer("i", res) for res in get_all_resources("button")] + switches = [io.Buffer("i", res) for res in get_all_resources("switch")] + + m.submodules += leds + buttons + switches inverts = [0 for _ in leds] for index, button in zip(itertools.cycle(range(len(inverts))), buttons): - inverts[index] ^= button + inverts[index] ^= button.i for index, switch in zip(itertools.cycle(range(len(inverts))), switches): - inverts[index] ^= switch + inverts[index] ^= switch.i clk_freq = platform.default_clk_frequency - timer = Signal(range(int(clk_freq//2)), reset=int(clk_freq//2) - 1) + timer = Signal(range(int(clk_freq//2)), init=int(clk_freq//2) - 1) flops = Signal(len(leds)) - m.d.comb += Cat(leds).eq(flops ^ Cat(inverts)) + m.d.comb += Cat(led.o for led in leds).eq(flops ^ Cat(inverts)) with m.If(timer == 0): - m.d.sync += timer.eq(timer.reset) + m.d.sync += timer.eq(timer.init) m.d.sync += flops.eq(~flops) with m.Else(): m.d.sync += timer.eq(timer - 1) |