83 lines
2.4 KiB
Plaintext
83 lines
2.4 KiB
Plaintext
import "/nmigen_boards.icebreaker/ICEBreakerPlatform"
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import "/nmigen_dg/*"
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import "/sys"
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import "modules/blinker/Blinker"
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import "modules/pulser/Pulser"
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import "modules/segment7/Segment7x2"
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import "resources/pmod"
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Top = subclass Elaboratable where
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elaborate = platform ~> m where with m = Module! =>
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freq = int platform.default_clk_frequency
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@ledr = platform.request "led_r" 0
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@ledg = platform.request "led_g" 0
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@seg7 = platform.request "seven_seg"
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blinker = (Submodule.blinker$ Blinker$ freq // 3 ).out
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pulser = (Submodule.pulser $ Pulser$ freq // 2).out
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seg7 = Submodule.seg7$ Segment7x2 decimal: False
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Comb$ @ledr :== blinker
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ff = Signal 1 reset: 1
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When pulser $ ->
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Sync$ ff :== ~ff
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Comb$ @ledg :== ff
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counter = Signal 4
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When pulser $ ->
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Sync$ counter :== counter + 1
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# TODO: learn SPI FLASH
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mem = Memory
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width: 8
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depth: 16 # ew
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init: ([0xde, 0xad, 0xbe, 0xef]*4)
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rdport = Submodule.rdport$ mem.read_port!
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Comb$ rdport.addr :== counter
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Comb$ seg7.number :== rdport.data
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#Comb$ seg7.number :== counter
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Comb$ @seg7 :== Cat seg7.segs seg7.select
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@leds = Cat
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platform.request "led_g" 4
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platform.request "led_g" 2
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platform.request "led_g" 3
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platform.request "led_g" 1
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@ledm = platform.request "led_r" 1
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@btn_r = platform.request "button" 1
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@btn_m = platform.request "button" 2
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@btn_l = platform.request "button" 3
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state = Signal 4 reset: 0b1000
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Comb$ @leds :== state
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Comb$ @ledm :== (@btn_r | @btn_l)
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When (on_rising_edge @btn_l) $ ->
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Sync$ state :== state.rotate_left 1
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When (on_rising_edge @btn_r) $ ->
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Sync$ state :== state.rotate_right 1
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When (on_rising_edge @btn_m) $ ->
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Sync$ state :== ~state
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on_rising_edge = signal -> result where
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prev = Signal (signal.shape!)
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Sync$ prev :== signal
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result = ~ signal.implies prev
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if __name__ == "__main__" =>
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plat = ICEBreakerPlatform!
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plat.add_resources$ pmod.seven_seg 0 pmod: 0 # pmod 1a
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plat.add_resources$ pmod.dip_switch8 0 pmod: 1 # pmod 1b
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plat.add_resources$ plat.break_off_pmod
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plat.build Top! do_program: ("--flash" in sys.argv)
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